Handbook Of Algal Biofuels

Handbook of Algal Biofuels: Aspects of Cultivation, Conversion and Biorefinery comprehensively covers the cultivation, harvesting, conversion, and utilization of microalgae and seaweeds for different kinds of biofuels. The book addresses four main topics in the algal biofuel value-chain. First, it explores algal diversity and composition, covering micro- and macroalgal diversity, classification, and composition, their cultivation, biotechnological applications, current use within industry for biofuels and value-added products, and their application in CO2 sequestration, wastewater treatment, and water desalination. Next, the book addresses algal biofuel production, presenting detailed guidelines and protocols for different production routes of biodiesel, biogas, bioethanol, biobutanol, biohydrogen, jet fuel, and thermochemical conversation methods. Then, the authors discuss integrated approaches for enhanced biofuel production. This includes updates on the recent advances, breakthroughs, and challenges of algal biomass utilization as a feedstock for alternative biofuels, process intensification techniques, life cycle analysis, and integrated approaches such as wastewater treatment with CO2 sequestration using cost-effective and eco-friendly techniques. In addition, different routes for waste recycling for enhanced biofuel production are discussed alongside economic analyses. Finally, this book presents case studies for algal biomass and biofuel production including BIQ algae house, Renewable Energy Laboratory project, Aquatic Species Program, and the current status of algal industry for biofuel production. Handbook of Algal Biofuels offers an all-in-one resource for researchers, graduate students, and industry professionals working in the areas of biofuels and phycology and will be of interest to engineers working in renewable energy, bioenergy, alternative fuels, biotechnology, and chemical engineering. Furthermore, this book includes structured foundational content on algae and algal biofuels for undergraduate and graduate students working in biology and life sciences. Provides complete coverage of the biofuel production process, from cultivation to biorefinery Includes a detailed discussion of process intensification, lifecycle analysis and biofuel byproducts Describes key aspects of algal diversity and composition, including their cultivation, harvesting and advantages over conventional biomass

Key Features The most comprehensive resource available on the biodiversity of algal species, their industrial production processes and their use for human consumption in food, health and varied applications. Emphasis on basic and applied research, addressing aspects of scale-up for commercial exploitation for the development of novel phytochemicals (phytochemicals from algae). Addresses the underexplored and underutilized potential of chemicals from marine sources for health benefits. Each chapter, written by expert contributors from around the world, includes a Dictionary of Terms, Key Facts, Summary Points, Figures and Tables, as well as up-to-date references. The second book in this two-volume set explores phycoremedation applications, and the sustainable use of algae for biofuels and other products of economic value. It also looks at aspects such as macro- and micro algal impact on marine ecosystem and remote sensing of algal blooms. The commercial value of chemicals of value to food and health is about $6 billion annually, of which 30 percent relates to micro and macro algal metabolites and products for health food applications. As a whole, the two volumes explore the aspects of diversity of micro and macro algal forms, their traditional uses; their constituents which are of value for food, feed, specialty chemicals, bioactive compounds for novel applications, and bioenergy molecules. Bio-business and the market share of algae-based products are also dealt with, providing global perspectives.

Microalgae are one of the most studied potential sources of biofuels and bioenergy. This book covers the key steps in the production of renewable biofuels from microalgae - strain selection, culture systems, inorganic carbon utilisation, lipid metabolism and quality, hydrogen production, genetic engineering, biomass harvesting, extraction. Greenhouse gas and techno-economic modelling are reviewed as is the 100 year history of microalgae as sources of biofuels and of commercial-scale microalgae culture. A summary of relevant basic standard methods used in the study of microalgae culture is provided. The book is intended for the expert and those starting work in the field.​

Algae presents a viable biofuel alternative because the production of algae for fuel, unlike other agro-based biofuels, does not compete with food production. This book covers algae-based biofuel options and discusses the design and economic viability of algal bioenergy co-production concepts.

Algae are currently being considered as a versatile feedstock for biofuel production because of their fast growth rate and high biomass productivity. Algae could simultaneously act as a carbon sink and water purifier if their cultivation were coupled with flue gas and wastewater treatment, respectively. Hence, an understanding of the overall supply chains for algal biofuel production is exceptionally important to determine whether it is worthwhile to scale up and commercialize algal cultivation for biofuel production. In this chapter, various aspects and constraints associated with the commercialization of algal biofuels are deliberated in detail, especially from the perspective of life-cycle energy balance. In addition, discussions on the economic assessments of algal biofuels are included in this chapter to provide an overview of the current state of algal biofuels in the fuel market. Potential algal biofuel conversion technologies, such as transesterification, starch hydrolysis and fermentation, pyrolysis, and hydrothermal liquefaction are also presented.

Algal biomass is a fast-growing, renewable resource and a promising feedstock for advanced biofuels. Algal biofuels are generating considerable interest around the world. In the United States, they represent promising pathways for helping to meet the biofuel production targets set by the Energy Independence and Security Act of 2007. Algae are a diverse group of primarily aquatic organisms that are capable of using photosynthesis to generate biomass. Some algal strains are able to double their mass several times per day. In some cases, more than half of that mass consists of lipids or tricylglycerides. These bio-oils can be used to produce drop-in replacements for diesel, gasoline, and aviation fuels. Some algae accumulate carbohydrates (including starch), which can also be used to form intermediates for processing into biofuels. Proteins from the residual biomass could provide supplemental feed for livestock and aquaculture operations. Advantages of Algal Feedstocks * A History of Domestic Algal Biofuels Development * Early Work to 1996 * Research from 1996 to Present * Algae-to-Biofuels: Opportunity and Challenges Today * Technology and Analysis Challenges * Regulations and Standards * Public-Private Partnerships * References * Algal Biology * Strain Isolation, Screening and Selection * Isolation and Characterization of Naturally Occurring Algae * Role of Culture Collections as National Algae Data Resource Centers * Selecting Algal Model Systems for Study * Algal Physiology and Biochemistry * Photosynthesis and Light Utilization * Carbon Partitioning and Metabolism * Algal Carbohydrates * Lipid Synthesis and Regulation. * Biohydrogen * Algal Biotechnology * The Genetic Toolbox * Enabling Technologies: "Omics" Approaches and Bioinformatics * Applications of Biotechnology to Algal Bioenergy * Considerations of Genetic Modifications * References * Algal Cultivation * Cultivation Pathways * Microalgae and Cyanobacteria * Macroalgae * Scale-Up Challenges * Stability of Large-Scale Cultures * System Productivity * Nutrient Sources, Sustainability, and Management * Water Management, Conservation, and Recycling * Downstream Processing: Harvesting and Dewatering * Approaches for Microalgae * Harvesting * Drying * Approaches for Macroalgae * Harvesting * Preprocessing * Systems Engineering * References * Preliminary Look at Energy Balance * Extraction of Products from Algae * Current Practices for Lipid Extraction * Mechanical Disruption (i.e., Cell Rupture) * Organic Co-solvent Mixtures * Accelerated Solvent Extraction * Selective Extraction * Subcritical Water Extraction * Supercritical Fluid Extraction * Heterotrophic Production * Challenges * References * Algal Biofuel Conversion Technologies * Direct Production of Biofuels from Algae * Alcohols Alkanes\ * Hydrogen * Processing of Whole Algae * Pyrolysis * Gasification * Liquefaction * Supercritical Processing * Anaerobic Digestion of Whole Algae * Conversion of Algal Extracts * Chemical Transesterification * Biochemical (Enzymatic) Conversion. * Catalytic Cracking * Conversion to Renewable Diesel, Gasoline, and Jet Fuel * Processing of Algal Remnants after Extraction * References * Co-products * Commercial Products from Microalgae and Cyanobacteria * Commercial Products from Macroalgae * Potential Options for the Recovery of Co-products * References * Distribution and Utilization * Distribution * Utilization * Algal Blendstocks to Replace Middle-Distillate Petroleum Products * Algal Blendstocks for Alcohol and Gasoline-Range Petroleum Products * References * Resources and Siting * Resource Requirements for Different Cultivation Approaches * Photoautotrophic Microalgae Approach * Heterotrophic Microalgae Approach * Photoautotrophic Macroalgae Approach * Resources Overview * Climate * Water * Carbon Dioxide * Land * Integration with Water Treatment Facilities * Wastewater Treatment and Recycling Applications * Algae Production Techniques for Wastewater Treatment Plants

This edited volume focuses on comprehensive state-of-the-art information about the practical aspects of cultivation, harvesting, biomass processing and biofuel production from algae. Chapters cover topics such as synthetic ecological engineering approaches towards sustainable production of biofuel feedstock, and algal biofuel production processes using wastewater. Readers will also discover more about the role of biotechnological engineering in improving ecophysiology, biomass and lipid yields. Particular attention is given to opportunities of commercialization of algal biofuels that provides a realistic assessment of various techno-economical aspects of pilot scale algal biofuel production. The authors also explore the pre-treatment of biomass, catalytic conversion of algal lipids and hydrothermal liquefaction with the biorefinery approach in detail. In a nut shell, this volume will provide a wealth of information based on a realistic evaluation of contemporary developments in algal biofuel research with an emphasis on pilot scale studies. Researchers studying and working in the areas of environmental science, biotechnology, genetic engineering and biochemistry will find this work instructive and informative.

The Handbook of Microalgae-based Processes and Products provides a complete overview of all aspects involved in the production and utilization of microalgae resources at commercial scale. Divided into four parts (fundamentals, microalgae-based processes, microalgae-based products, and engineering approaches applied to microalgal processes and products), the book explores the microbiology and metabolic aspects of microalgae, microalgal production systems, wastewater treatment based in microalgae, CO2 capture using microalgae, microalgae harvesting techniques, and extraction and purification of biomolecules from microalgae. It covers the largest number of microalgal products of commercial relevance, including biogas, biodiesel, bioethanol, biohydrogen, single-cell protein, single-cell oil, biofertilizers, pigments, polyunsaturated fatty acids, bioactive proteins, peptides and amino acids, bioactive polysaccharides, sterols, bioplastics, UV-screening compounds, and volatile organic compounds. Moreover, it presents and discusses the available engineering tools applied to microalgae biotechnology, such as process integration, process intensification, and techno-economic analysis applied to microalgal processes and products, microalgal biorefineries, life cycle assessment, and exergy analysis of microalgae-based processes and products. The coverage of a broad range of potential microalgae processes and products in a single volume makes this handbook an indispensable reference for engineering researchers in academia and industry in the fields of bioenergy, sustainable development, and high-value compounds from biomass, as well as graduate students exploring those areas. Engineering professionals in bio-based industries will also find valuable information here when planning or implementing the use of microalgal technologies. Covers theoretical background information and results of recent research. Discusses all commercially relevant microalgae-based processes and products. Explores the main emerging engineering tools applied to microalgae processes, including techno-economic analysis, process integration, process intensification, life cycle assessment, and exergy analyses.