Bioenergy : Biomass to Biofuels and Waste to Energy

Bioenergy: Biomass to Biofuels and Waste to Energy, Second Edition, examines current and emerging feedstocks and advanced processes and technologies that enable the development of all possible alternative energy sources, including solid (wood energy, grass energy, and other biomass), liquid (biodiesel, algae biofuel, ethanol), and gaseous/electric (biogas, syngas, bioelectricity). Divided into seven parts, the book gives thorough consideration to feedstocks, biomass production and utilization, lifecycle analysis, Energy Return on Invested (EROI), integrated sustainability assessments, conversions technologies, biofuels economics and policy. In addition, contributions from leading industry professionals and academics provide readers with a comprehensive resource that connects theory to implementation. Engineers, researchers and graduate students in the bioenergy field will find valuable, practical information that can be applied to implementing renewable energy projects, choosing among competing feedstocks, technologies, and products. The book will also serve as a basic resource for civic leaders, economic development professionals, farmers, investors, fleet managers, and reporters interested in an organized introduction to the language, feedstocks, technologies, and products in the bio-based renewable energy world. Includes new project case studies and a section on the impacts of biomass use for energy production Provides a comprehensive overview and in-depth technical information on all possible bioenergy resources (solid, liquid, and gaseous), including cutting-edge topics, such as advanced fuels and biogas Integrates current, state-of-the-art coverage on feedstocks, cost-effective conversion processes, biofuels economic analysis and environmental policy Features quizzes for each section that are derived from the implementation of actual hands-on biofuel projects Cover Bioenergy: Biomass to Biofuels and Waste to Energy Copyright Dedication List of Contributors Foreword to the second edition Foreword to the first edition Preface Acknowledgments How to use this book: helpful suggestions Overview of this book Helpful suggestions for both the students and the instructors engaged in bioenergy courses Additional suggestions for an expert (teacher, professor, guest speaker) planning to use material provided in this book as ... Brief overview of eight parts Part 1 Bioenergy—biomass to biofuels: an overview Part 1 Bioenergy—biomass to biofuels: an overview Part 2 Wood and grass biomass as biofuels Part 2 Wood and grass biomass as biofuels Part 3 Biomass to liquid biofuels Part 3 Biomass to liquid biofuels Part 4 Gaseous fuels and biopower Part 4 Gaseous fuels and biopower Part 5 Waste to energy Part 5 Waste to energy Part 6 Conversion pathways for cost-effective biofuel production Part 6 Conversion pathways for cost-effective biofuel production Part 7 Biofuels economics, sustainability, environmental and policy Part 7 Biofuels economics, sustainability, environmental and policy Part 8 Quizzes Part 8 Quizzes Part I - Bioenergy biomassto biofuels: an overview 1. Introduction to bioenergy and waste to energy Purpose Introduction Bioenergy defined Bioenergy development and drivers Policy Government research programs Market inertia Feedstocks Biomass materials and sources Forest-based feedstocks Agriculture-based feedstocks Waste-based feedstocks Agroforestry feedstocks Biomass from conservation lands Advanced fuels from algae Biomass supply and availability Overview of conversion technologies Co-products and by-products Social, economic, and environmental impacts Community impacts of bioenergy Food security Ecological and environmental impacts of bioenergy Land use and land use change Greenhouse gases and climate change Wildlife and biodiversity Invasive and transgenic plants Sustainability challenges Sustainability defined Yield gaps Farmer knowledge and risk Marginal lands Water quantity and quality Rural development and social justice Conclusion References 2. Introduction to biodiesel and glossary of terms Biodiesel standards BQ-9000 fuel quality program 3. Biomass to biofuels: glossary of terms and conversion factors Glossary of terms References Quick reference list of conversion factors used for bioenergy feedstock Energy units Quantities Power Energy costs Some common units of measure Areas and crop yields Biomass energy Fossil fuels Carbon content of fossil fuels and bioenergy feedstocks Part II - Wood and grassbiomass as biofuels 4. Wood bioenergy Introduction to wood bioenergy Wood energy sources: a vast and renewable resource Wood bioenergy uses in the United States and worldwide Values and benefits of wood bioenergy Wood energy sources Managing wood biomass for bioenergy Harvesting, transporting, and storing woody biomass for bioenergy Utilizing woody biomass Direct combustion options Liquid and gaseous biofuel conversion options Biochemical technological processes Thermochemical processes Economics of woody bioenergy Economics of woody bioenergy production Sustainability of woody bioenergy Summary References 5. Perennial grass biomass production and utilization Introduction Developing and evaluating a perennial grass biomass system Feedstock supply Plant species used for perennial herbaceous biomass Biomass conversion Feedstock quality characteristics for grass biomass Environmental impact of grass biomass Economic considerations for grass biomass The future References 6. Wood and grass energy service learning projects and case studies Reference Introduction Community partner Executive summary of the business plan for the Vermont biomass energy co-op Biomass feedstock for pellet production Two case studies that informed the business plan for the Vermont biomass energy co-op Financing Feedstock analysis Energy density of pellets Pellet data Sales Conclusions A survey of what Vermonters wanted as a biomass utility Introduction Energy use at Rock Point Biomass resources at Rock Point Recommendations Introduction Community partners Objective Short history of Addie's Acres Background Plan of work Results Economic analysis Future directions Benefits to community partners References Part III - Biomass to liquid biofuels 7. Bioenergy crops Introduction Economics Sample bioenergy crop budgets Comparative profitability A crop-by-crop analysis Sugar and starch crops Cellulosic crops Woody crops Oilseed crops Crop residue and organic waste Corn grain Characteristics Climate Soil Seedbed preparation Fertility and lime requirements Variety selection Water/irrigation requirements Weed/insect control Disease control Yield potential Economics Corn stover Characteristics Production challenges Corn cobs Yield potential Production challenges Switchgrass Characteristics Climate Soil Seedbed preparation and planting Fertility and lime requirements Variety selection Growth Weed control Yield potential Production challenges Miscanthus Characteristics Climate Soil Seedbed preparation Fertility and lime requirements Variety selection Water/irrigation requirements Weed control Insect/pest control Yield potential Economics Sorghum Characteristics Climate Soil Planting temperature Fertilization requirements Variety selection Weed/disease control Insect/predator control Yield potential Preharvest monitoring Economics Poplar Characteristics Climate Soil Seedbed preparation Variety selection Planting Fertility and lime requirements Water/irrigation requirements Weed control Insect/disease/predator control Yield potential Economics Willow Characteristics Climate Soil Site preparation Variety selection Planting Fertility and lime requirements Water/irrigation requirements Weed control Insect/predator control Yield potential Economics Canola (rapeseed) Characteristics Climate Soil Seedbed preparation Fertility and lime requirements Variety selection Water/irrigation requirements Disease control Yield potential Storage Production challenges Crop handling and logistics Harvest Densification Storage Transportation Sustainable management for biomass production Conclusion Acronyms used in Chapter 7, Bioenergy Crops References Further reading 8. On-farm oil-based biodiesel production Introduction Species and variety selection Maturity Yield potential Oil content and quality Disease resistance Herbicide tolerance Planting considerations Soils and fertility Seedbed prep and seeding Planting dates Seeding rates and populations Row spacing Pest management Cultural pest controls Mechanical pest controls Chemical controls Biological controls Harvesting, cleaning, drying, and storage of seed Oil extraction and by-products Challenges and opportunities with farm-based fuel production Examples of on-farm fuel systems References Further reading 9. Life-cycle assessment: the energy return on invested of biodiesel Introduction EROI approaches and controversies Purpose Data and methods System boundaries Accounting for uncertainty Projections EROI of Vermont biodiesel Considerations Conclusions Appendices References Further reading 10. Energy management during field production practices Introduction and overview Tractor use Ballasting/slip/tire inflation Maintenance Transmission Fuel saving operational techniques Tractor selection Other issues Harvest operations Other individual equipment operations Fertilizer and other cultural and technology issues affecting energy use Further reading Field operations—general Tractor—general Tractor ballasting/slip/tire inflation Tractor transmission Tractor fuel saving operational techniques Tractor selection Other Tractor Issues Fertilizer issues No-Till seeding Corn Production 11. Cellulosic ethanol—biofuel beyond corn Introduction Cellulose as ethanol feedstock Challenges in cellulosic ethanol Plant biotechnology Pretreatment Hydrolysis Fermentation Conclusion References 12. Bioheat Biodiesel BQ-9000 Petroleum Properties of heating oil and bioheat American society for testing and materials Flash point Ignition point Pour point Cloud point Viscosity Water and sediment Sulfur content Color Fuel related service calls Background Potential problems Major factors in fuel degradation Fuel stability Water problems Sludge happens Low temperature performance How to deal with “frozen” tanks and oil lines Bioheat and cold weather Four steps to successful Bioheat management Blend properly Check quality Maintain as usual Know limitations Quick tests for fuel quality Clear and bright test White bucket test Visual detection of bacterial contamination Water detection paste Oil filtration Filters and sludge Fuel additive treatment Selection of additives Types of additives Preventative maintenance Steps to better fuel performance Tank cleaning Tank replacement Keep the tank full Sources Further reading 13. Algae biomass cultivation for advanced biofuel production Introduction Algae as a sustainable feedstock for multiple uses Historical perspective of algae biomass and journey toward algal biofuel How do algae get their mass and from where? Importance of light in photosynthesis Use of algae for biofuel Possibilities of biofuel production from algae biomass Algae strain selection: algae types, strains, and use in biofuel production Microalgae Photoautotrophic algae Heterotrophic and mixotrophic algae Genetically modified algae and its use in biofuel production Macroalgae (seaweed) Algae cultivation: growth systems Photobioreactors Open system Fermenters Sterile photobioreactors versus open ponds versus heterotrophic cultivation Algae harvesting Oil extraction from harvested algae biomass Challenges in upscaling of algal biofuel operations from bench to commercial scales Integrated algal biofuel production Life-cycle analysis, economics, and environmental impacts Conclusion References 14. Biomass to liquid biofuels service learning projects and case studies Acknowledgments References Summary Background Biodiesel production Ethanol production Fermentation Distillation Fractional distillation Regulations Survey results Conclusions References Part IV - Gaseous fuelsand biopower 15. Thermal gasification of biomass—a primer Introduction Classification of gas mixtures Chemical concepts and background Heating values of gases and gas mixtures Measures of gas production performance Pyrolysis Thermochemical pathways Gasifier types Moving or fixed-bed gasifiers Updraft gasifier Moving-bed, downdraft gasifier Fluidized-bed gasifiers Entrained-flow gasifiers Postgasification processing Integrated gasification combined cycles Further reading 16. Basics of energy production through anaerobic digestion of livestock manure Introduction The anaerobic digestion process Benefits of anaerobic digestion What makes an operation appropriate for anaerobic digestion? Conclusion References 17. Bioenergy and anaerobic digestion Introduction The anaerobic digestion process Step 1: Hydrolysis Step 2: Fermentation or acidogenesis Step 3: Acetogenesis Step 4: Methanogenesis The fermenting bacteria and methanogen relationship Summary of subsection Feedstocks Feedstock examples Carbon to nitrogen ratio Volatile solids Predicting biogas potential Summary of subsection The process of starting a digester Startup Feeding the digester after startup Starting the digester during cold weather Summary of subsection Loading rate Background Factors in feeding the digester Calculating the loading rate Calculating the manure volume Calculating the loading rate Hydraulic loading Tools that estimate biogas yield US EPA AgSTAR The University of Minnesota Extension Summary of subsection Operation and control of a digester Operation and control procedures Summary of subsection Role of mixing in biogas production Background Slurry stabilization Mixing methods Biogas Mechanical mixing Impellers Impellers Pumps Pumps Effect of speed on mixing Benefits of external equipment placement Summary of subsection Types of anaerobic digesters Suspended growth systems Outline placeholder Covered lagoon digester Covered lagoon digester Advantages Advantages Disadvantages Disadvantages Complete mix digester Complete mix digester Advantages Advantages Disadvantages Disadvantages Plug flow digester Plug flow digester Advantages Advantages Disadvantages Disadvantages High solids digesters High solids digesters Advantages Advantages Disadvantages Disadvantages Attached growth system Fixed film digester Fixed film digester Advantages Advantages Disadvantages Disadvantages Summary of subsection Conclusion References 18. Gaseous fuels and bioelectricity service learning projects and case studies References Project objectives Background Community partner Methods Results Discussion Future directions Benefits to community partner References Purpose Background Anaerobic digestion: process and systems overview Vermont Act 148—the universal recycling law Act 148 report Analysis Act 148 report Energy potential Results Future research References Introduction Methods Biomass gasification as a strategy for sustainable rural development Community need and business objectives Pamoja business model Case studies: investigating Pamoja operations Biomass gasification energy systems and applications in the United States Conclusions and considerations References Part V - Waste to energy 19. Waste not, want not: analyzing the economic and environmental viability of waste-to-energy technology for site-specific opt ... Waste-to-energy model for NREL’s renewable energy optimization tool Introduction Background Renewable energy optimization Waste-to-energy history Waste management practices Waste-to-energy overview Waste-to-energy heating, electrical generation, and CHP technologies Overview of technology Feedstock characterization Municipal solid waste Municipal solid waste Other dry and wet wastes Other dry and wet wastes Feedstock conversion technologies Combustion Combustion Gasification Gasification Pyrolysis Pyrolysis Anaerobic digestion Anaerobic digestion Methods for energy recovery Heat recovery Solid fuels Solid fuels Synthesis gas Synthesis gas Power generation Pipeline injection Renewable Energy Optimization WTE analysis module Calculation of electrical load met by WTE Calculation of thermal load met by WTE Calculation for CHP Calculation of WTE consumption Annual fixed and variable operations and maintenance cost Calculation of capital cost Life-cycle assessments for municipal waste combustion Introduction Methods Results Conclusions Air emission limits for municipal waste combustors Introduction What REO GIS does How to Use REO GIS Web-based tool Single lookup point Multiple lookup points REO data services Output and data sources MSW analysis example figures Contact Us References 20. Community-based organic waste diversion for composting and heat recovery Introduction What is organic waste and why is diversion of organic waste from landfills important? What is composting? Environmental benefits Farm viability benefits Community benefits Municipal and community composting Case studies: composting at municipal scale From pilot effort to financial boon Rekindling dormant facility Food scrap management—a legacy in Maine A rural county paves the way in Massachusetts Community composting Beyond food waste diversion Case studies: composting at community scale Growing community composting Housing developments embrace food scrap composting Heat recovery from composting Case studies: heat recovery from composting Summary Further reading 21. Straight vegetable oil as a diesel fuel? Performance of SVO Biodiesel: fuel made from SVO 22. Waste to energy service learning projects and case studies Reference Background Year one—the first briquette Year two—the gasifier Year three—the trip to Haiti Future directions References Further reading Project summary Project objectives Background Community partners Plan of work Results References Useful resources Project summary Project goals Background Community partner Plan of work Materials and methods The gasifier Gasification Biochar briquettes Plastic pyrolysis Outcomes Biochar briquettes Plastic pyrolysis Financial analysis Reflections on the project Amanda Claire Eric Miranda Benefits to community partner Business models Future directions References Introduction Composting and compost heating Community partners Objectives Project limitations Jean Pain compost-heat method Vermont laws and regulations Nutrient leaching mitigation Financial considerations AgriLab technologies Case studies A Collins powder Hill farm B The University of New Hampshire C Mattapan ecovation center Future directions References Further reading Project summary Introduction and background Methods and strategies Results Social discussion References 23. Biodiesel production Introduction Production processes Feedstocks used in biodiesel production Biodiesel production process options Batch processing Continuous process systems High free fatty acid systems Noncatalyzed systems—biox process Noncatalyzed systems—supercritical process Summary Post reaction processing Ester/glycerol separation Process equipment for the ester/glycerol separation Ester washing Other ester treatments Additization of esters Treatment and recovery of side streams Methanol management Glycerol refining Wastewater considerations Summary Pretreatment of high free fatty acid feedstocks Procedure for high FFA feedstocks Biodiesel production summary References Part VI - Conversion pathways forcost-effective biofuel production 24. Synthesis and partial characterization of biodiesel via base-catalyzed transesterification Introduction Materials Hazards Experimental procedure Results and discussion Conclusion References 25. Whole algal biomass in situ transesterification to fatty acid methyl esters as biofuel feedstocks Introduction Microalgae-focused lipid technologies for biofuel applications Renewable and biodiesel fuel properties In situ transesterification of oleaginous algal biomass Choice of catalyst for in situ whole biomass transesterification Analytical characterization of lipid content in algal biomass using in situ transesterification Conclusions References 26. How fuel ethanol is made from corn Introduction Fuel ethanol Yeast's role in ethanol production Corn as ethanol feedstock Industrial ethanol production Wet milling Dry grind Dry-grind ethanol processing steps Milling Liquefaction Saccharification Fermentation Distillation and recovery Energy use in ethanol production Conclusions References 27. Small-scale approaches for evaluating biomass bioconversion for fuels and chemicals Introduction Types of biomass Treatment of biomass Mechanical treatments No pretreatment Chemical/thermal pretreatment Acidic pretreatment Neutral pretreatment Alkaline pretreatment Organic pretreatment Ionic liquid pretreatment Organosolv pretreatment Biological pretreatment Examples of small-scale pretreatment Biomass analysis Small-scale biomass fermentation approaches Example of simultaneous saccharification and fermentation Example of separate hydrolysis and fermentation Example of consolidated bioprocessing Analysis of fermentation results Identification of fermentation inhibition Concluding thoughts References 28. Reducing enzyme costs, novel combinations, and advantages of enzymes could lead to improved cost-effective biofuels' production Quick facts Key research results Achievement Key result Potential impact Key research results Achievement Key result Potential impact 29. Pyrolysis of lignocellulosic biomass: oil, char, and gas Introduction Types of thermochemical conversion Lignocellulosic structure and chemistry for pyrolysis Structure of lignocellulose and impact on pyrolysis Cellulose: 40–45 dry wt% Primary cellulose pyrolysis reactions Secondary cellulose pyrolysis reactions Hemicellulose: 20–30 dry wt% in wood Lignin: 15%–36% dry wt% in wood Low-temperature lignin pyrolysis reactions High-temperature lignin pyrolysis reactions Extractives: 2–10 dry wt.% in wood Combined reaction schemes Biomass pyrolysis reactor design and modeling strategies “Slow” pyrolysis: the path to char through carbonization Fast pyrolysis: the path to oil Reactors Applications of pyrolysis products Char combustion Char as soil amendment and nutrient adsorbent Bio-oil combustion Liquid fuel production and upgrading of bio-oil Useful chemicals from bio-oils Conclusion References Further reading 30. Sustainable aviation biofuels—A development and deployment success model Aviation alternative fuel 2006 snapshot: “what if your family were an airline?” Aviation alternative fuel 2013 snapshot: acknowledged leader in sustainable transport fuels Specifically Key methodologies for sustainable progress: creation of a “new fuel dynamic” Streamlining the fuel qualification process The challenge Pathways to solutions The results Implementing comprehensive risk management in alternative fuels research and development The challenge Pathways to solutions The results Structuring and facilitating comprehensive environment benefits assessments The challenge99Declaration and Recommendations, in Conference on Aviation and Alternative Fuels 2009, ICAO Secretariat: Rio ... Pathways to solutions The results Universally accepted goals Quantifying real-term carbon and GHG calculation for projects Communicate options and certification techniques for sustainability certification Quantifying PM2.5 benefits Comprehensive set of tools to assess project benefits by all stakeholders Deploying a “a new fuel dynamic” through public/private partnership, and multiple-success models. The challenge Pathway to solutions The results Flying biofuels US federal focus US state focus Global public/private partnerships Production cost reduction, debt financing, and project analysis tools Closing summary 31. Cutting-edge biofuel conversion technologies to integrate into petroleum-based infrastructure and integrated biorefineries Biodiesel as renewable diesel Biodiesel versus petroleum diesel Processing pathways for conversion of biofuel into diesel fuel Transesterification Challenges from FAME use as an alternative to diesel fuels in existing infrastructure Issues due to the presence of oxygen in biofuel and possible solutions Renewable diesel processing Fuel properties of hydroprocessed diesel product Integration with existing refineries or to form new integrated biorefineries Commercialization of biofuel Industry standards Case study of the largest US energy company making ethanol and FAME shipment Benefits of biodiesel use in compliance with industry standards Commercialization of renewable diesel Hydroprocessed renewable jet fuel Future utilization of biocrudes and Coprocessing concerns Integrated biorefinery Colocating biorefineries Conclusion References 32. Biofuel conversion pathways service learning projects and case studies Reference Summary Project objectives Background Community partner Methods used and/or experiments (listed by objective) Define the chemical process required to convert waste cooking oil into useable biodiesel Develop a standardized local procedure to convert waste cooking oil into biodiesel Design a machine that will implement the procedure Develop a method to evaluate the quality of the biodiesel produced Develop a plan to utilize the waste product of biodiesel (glycerol) in a sustainable manner Results/expected outcome Future directions Benefits to community partner Summary Background Community partners Plan of work Results/expected outcome Future directions Benefits to community partners Project objectives Introduction Biomass pretreatment Fungal pretreatment Pilot system Plan of work Case studies Commercial scale Future work with community partner References Part VII - Biofuels economics,sustainability,environmental and policy 33. Biofuel economics and policy: The Renewable Fuel Standard in 2018 The renewable fuel standard The blend wall Point of obligation California low carbon fuel standard Aviation biofuels Alternatives to the current situation References 34. Economics of ethanol and biodiesel Agricultural economy Economics of biofuels Farm-scale production References 35. Fuel quality policy 36. Renewable oilheat The new england home heating market: past, present, and future The search for a better fuel Advanced wood heating Case study: Bourne's energy About the author 37. What's so different about biodiesel fuel? Introduction Properties of biodiesel versus petroleum diesel Does the type of vegetable oil used matter? Making biodiesel better with additives What about blends? Summary Further readings 38. Biodiesel emissions and health effects testing Biodiesel emissions Health effects testing History Testing Results Significance 39. Biodiesel sustainability fact sheet Sustainability principles Energy balance Water conservation Land conservation Food supply security Diversity Cleaner air and health effects 40. Entrepreneurial opportunities in bioenergy Bioenergy entrepreneurism The energy situation now and in the future Bioenergy entrepreneurship motivations Market drivers Opportunities in bioenergy: biofuel value chain Examples of entrepreneurs in the biofuel value chain Opportunities in small-scale bioenergy Biodiesel Methane Biomass and wood Cooperatives Opportunities in large-scale bioenergy Opportunities at the periphery Challenges References 41. Integrated agroecological technology networks for food, bioenergy, and biomaterial production Introduction Application of ecological technologies to agriculture and natural resource management Agriculture and bioenergy The role of industrial ecology in CFEA design and evaluation Measuring CFEA performance in a competitive world Participatory action research for CFEA primary data collection Analysis of ecotechnologies for vermont-based CFEA Key aspects of regionally appropriate ecotechnologies Management-intensive grazing Anaerobic digestion Integrated bioshelters CFEA case study: the Burlington area agro-eco park concept Land resources Dairy-centric process Composting Gardens, forests, and aquaponics Waste heat utilization Additional ecotechnologies for the agro-eco park Modeling of unit operations for economic projections Case study conclusion Conclusion References Part VIII - Quizzes Quizzes and self-test questions Introduction to bioenergy Section 1 questions Section 1 questions Answers to section 1 questions Answers to section 1 questions Section 2 questions Section 2 questions Answers to section 2 questions Answers to section 2 questions Section 3 questions Section 3 questions Answers to section 3 questions Answers to section 3 questions Section 4 questions Section 4 questions Answers to section 4 questions Answers to section 4 questions Acknowledgments Wood energy Wood energy Answers to wood energy section Answers to wood energy section Quizzes and self-test questions Section 1 Section 1 Answers Answers Section 2 Section 2 Answers Answers Section 3 Section 3 Answers Answers Acknowledgments Gasification Gasification Answers Answers Biogas, anaerobic digestion Section 1 questions Section 1 questions Section 1 answers Section 1 answers Section 2 questions Section 2 questions Section 2 answers Section 2 answers Section 3 questions Section 3 questions Section 3 answers Section 3 answers Acknowledgments Index A B C D E F G H I J K L M N O P Q R S T U V W X Y Back Cover Bioenergy: Biomass to Biofuels and Waste to Energy, Second Edition presents a complete overview of the bioenergy value chain, from feedstock to end products. It examines current and emerging feedstocks and advanced processes and technologies enabling the development of all possible alternative energy sources. Divided into seven parts, bioenergy gives thorough consideration to topics such as feedstocks, biomass production and utilization, life-cycle analysis, energy return on invested, integrated sustainability assessments, conversions technologies, biofuels economics, business, and policy. In addition, contributions from leading industry professionals and academics, augmented by related service-learning case studies and quizzes, provide readers with a comprehensive resource that connect theory to real-world implementation.Bioenergy: Biomass to Biofuels and Waste to Energy, Second Edition provides engineers, researchers, undergraduate and graduate students, and business professionals in the bioenergy field with valuable, practical information that can be applied to implementing renewable energy projects, choosing among competing feedstocks, technologies, and products. It also serves as a basic resource for civic leaders, economic development professionals, farmers, investors, fleet managers, and reporters interested in an organized introduction to the language, feedstocks, technologies, and products in the biobased renewable energy world. Includes current and renewed subject matter, project case studies from real world, and topic-specific sections on the impacts of biomass use for energy production from all sorts of biomass feedstocks including organic waste of all kinds Provides a comprehensive overview and in-depth technical information of all possible bioenergy resources: solid (wood energy, grass energy, waste, and other biomass), liquid (biodiesel, algae biofuel, ethanol, waste to oils, etc.), and gaseous/electric (biogas, syngas, biopower, RNG), and cutting-edge topics such as advanced fuels Integrates current state of art coverage on feedstocks, cost-effective conversion processes, biofuels economic analysis, environmental policy, and triple bottom line Features quizzes for each section derived from the implementation of actual hands-on biofuel projects as part of service learning __Bioenergy: Biomass to Biofuels and Waste to Energy, Second Edition,__ examines current and emerging feedstocks and advanced processes and technologies that enable the development of all possible alternative energy sources, including solid (wood energy, grass energy, and other biomass), liquid (biodiesel, algae biofuel, ethanol), and gaseous/electric (biogas, syngas, bioelectricity). Divided into seven parts, the book gives thorough consideration to feedstocks, biomass production and utilization, lifecycle analysis, Energy Return on Invested (EROI), integrated sustainability assessments, conversions technologies, biofuels economics and policy. In addition, contributions from leading industry professionals and academics provide readers with a comprehensive resource that connects theory to implementation. Engineers, researchers and graduate students in the bioenergy field will find valuable, practical information that can be applied to implementing renewable energy projects, choosing among competing feedstocks, technologies, and products. The book will also serve as a basic resource for civic leaders, economic development professionals, farmers, investors, fleet managers, and reporters interested in an organized introduction to the language, feedstocks, technologies, and products in the bio-based renewable energy world.