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Author: Kelly Frances O'Shea Publisher: ISBN: Category : Biodiesel fuels Languages : en Pages : 172
Book Description
Biodiesel is an alternative liquid transportation fuel derived from biological oils. It is a renewable form of transportation fuel that can be easily integrated into society's current infrastructure. Biodiesel is cleaner burning than petroleum, emitting less carbon pollution and harmful toxins (i.e. sulfur, benzene). One of the major by-products from biodiesel production is crude glycerin. With the increased production of biodiesel, glycerin production will continue to increase. Glycerin was once considered a valuable co-product but now is considered a low-value by-product. In the following study, different co/tricultures of sulfate reducing bacteria (SRB) and methanogens were grown with crude glycerin as a means to convert the waste product into a renewable energy source, methane. The SRBs, Desulfovibrio vietnamensis and Desulfovibrio alcoholovorans 6133, were grown syntrophically, in different co/triculture combinations, with Methanococcus maripaludis, Methanoculleus marisnigri, and Methanosarcina acetivorans. Co/tricultures were investigated for the ability to produce methane via the utilization of pure glycerol, fractionated glycerin, and crude glycerin as carbon and energy sources. In order to gain insight into cellular physiology, glycerol, acetate, free fatty acid, and methane concentrations were measured throughout growth. The co/tricultures grew fastest on pure glycerol and experienced a lag phase in growth on fractionated glycerin and longer lag phases when transferred to crude glycerin. However, methane yields were similar on all three carbon sources. Methane production depended on the carbon source and culture composition. Co/tricultures growing on pure glycerol and fractionated glycerin displayed a decrease of methane production as growth rate increased. The opposite was seen with growth on crude glycerin. With most cultures, the addition of M. acetivorans increased methane concentrations significantly. M. acetivorans displayed the capability of utilizing the by-product, acetate, from SRB oxidation of glycerol and the methanol layer from fractionated and crude glycerin. M. acetivorans appeared to interfere with the coculturing of D. vietnamensis and M. marisnigri based on decreased methane production. Cocultures with M. maripaludis grew poorly and produced little methane when grown on the supernatant of M. acetivorans. This is the first study to characterize the utilization of crude glycerin from biodiesel production by syntrophic cultures of SRB and methanogenic archaea.
Author: Kelly Frances O'Shea Publisher: ISBN: Category : Biodiesel fuels Languages : en Pages : 172
Book Description
Biodiesel is an alternative liquid transportation fuel derived from biological oils. It is a renewable form of transportation fuel that can be easily integrated into society's current infrastructure. Biodiesel is cleaner burning than petroleum, emitting less carbon pollution and harmful toxins (i.e. sulfur, benzene). One of the major by-products from biodiesel production is crude glycerin. With the increased production of biodiesel, glycerin production will continue to increase. Glycerin was once considered a valuable co-product but now is considered a low-value by-product. In the following study, different co/tricultures of sulfate reducing bacteria (SRB) and methanogens were grown with crude glycerin as a means to convert the waste product into a renewable energy source, methane. The SRBs, Desulfovibrio vietnamensis and Desulfovibrio alcoholovorans 6133, were grown syntrophically, in different co/triculture combinations, with Methanococcus maripaludis, Methanoculleus marisnigri, and Methanosarcina acetivorans. Co/tricultures were investigated for the ability to produce methane via the utilization of pure glycerol, fractionated glycerin, and crude glycerin as carbon and energy sources. In order to gain insight into cellular physiology, glycerol, acetate, free fatty acid, and methane concentrations were measured throughout growth. The co/tricultures grew fastest on pure glycerol and experienced a lag phase in growth on fractionated glycerin and longer lag phases when transferred to crude glycerin. However, methane yields were similar on all three carbon sources. Methane production depended on the carbon source and culture composition. Co/tricultures growing on pure glycerol and fractionated glycerin displayed a decrease of methane production as growth rate increased. The opposite was seen with growth on crude glycerin. With most cultures, the addition of M. acetivorans increased methane concentrations significantly. M. acetivorans displayed the capability of utilizing the by-product, acetate, from SRB oxidation of glycerol and the methanol layer from fractionated and crude glycerin. M. acetivorans appeared to interfere with the coculturing of D. vietnamensis and M. marisnigri based on decreased methane production. Cocultures with M. maripaludis grew poorly and produced little methane when grown on the supernatant of M. acetivorans. This is the first study to characterize the utilization of crude glycerin from biodiesel production by syntrophic cultures of SRB and methanogenic archaea.
Author: Hiren K. Patel Publisher: LAP Lambert Academic Publishing ISBN: 9783659179051 Category : Languages : en Pages : 100
Book Description
Renewable energy sources and biofuel, including biodiesel, have been gaining increasing attention recently as a replacement for fossil fuels. However, their implementation in the general market depends on making these fuels more competitive. A convenient way to lower the cost of biofuel is to use the by-products as a potential source of energy, rather than treating them as waste. The industrial conversion of renewable resources into useful compounds, namely bio-based materials, has been receiving much attention from the environmental point of view. The crude glycerol from biodiesel production represents an abundant and inexpensive carbon source. Glycerol is yielded at about 10% as a by-product during the process of biodiesel production. The global biodiesel market is estimated to reach 39 billion gallons by 2020, growing at an average annual growth of 42%. Therefore, microbial conversion of raw glycerol into value added fermented products were investigated aiming to facilitate the utilization of waste glycerol.
Author: Michael E Himmel Publisher: Elsevier ISBN: 0444595899 Category : Technology & Engineering Languages : en Pages : 423
Book Description
'Direct Microbial Conversion of Biomass to Advanced Biofuels' is a stylized text that is rich in both the basic and applied sciences. It provides a higher level summary of the most important aspects of the topic, addressing critical problems solved by deep science. Expert users will find new, critical methods that can be applied to their work, detailed experimental plans, important outcomes given for illustrative problems, and conclusions drawn for specific studies that address broad based issues. A broad range of readers will find this to be a comprehensive, informational text on the subject matter, including experimentalists and even CEOs deciding on new business directions. - Describes an important new field in biotechnology, the consolidated conversion of lignocellulosic feedstocks to advanced fuels - Up-to-date views of promising technologies used in the production of advanced biofuels - Presents the newest ideas, well-designed experiments, and outcomes - Provides outstanding illustrations from NREL and contributing researchers - Contains contributions from leaders in the field that provide numerous examples and insights into the most important aspects of the topic
Author: Rajesh K. Sani Publisher: Springer ISBN: 3319744593 Category : Science Languages : en Pages : 313
Book Description
This book presents a review and in-depth analyses of improved biotechnological processes emphasizing critical aspects and challenges of lignocellulosic biomass conversion into biofuels and value-added products especially using extremophiles and recombinant microorganisms. The book specifically comprises extremophilic production of liquid and gaseous biofuels (bioethanol, biobutanol, biodiesel, biohydrogen, and biogas) as well as value added products (e.g. single cell protein, hydrocarbons, lipids, exopolysaccharides, and polyhydroxyalkanoates). The book also provides the knowledge on how to develop safe, more efficient, sustainable, and economical integrated processes for enhanced conversion of lignocellulosic feedstocks to liquid and gaseous biofuels. Finally the book describes how to perform the techno-economical and life-cycle assessments of new integrated processes involving extremophiles. These modeling exercises are critical in addressing any deficiencies associated with the demonstration of an integrated biofuels and value-added products production process at pilot scale as well as demonstration on the commercialization scale.
Author: Luisa Fernanda Rios Pinto Publisher: Nova Science Publishers ISBN: 9781536148848 Category : Biodiesel fuels Languages : en Pages : 354
Book Description
Biodiesel is considered a viable alternative to the use of fossil fuel, as it is a renewable and biodegradable fuel, providing many environmental benefits. A Closer Look at Biodiesel Production describes new prospects of biodiesel production and updates the different researches on raw materials for the production of new sources of biofuels. The book contains thirteen chapters that are divided into five sections for a better understanding for the reader.The first section presents an extensive and profound review of the fundamentals of biodiesel production and the application of heterogeneous catalysts in this process. The second section assesses the influence of the raw material and provides insight into non-conventional raw materials that can be used for biodiesel production, such as Macroinvetebrate Larvae and Wastewater Treatment Plant Sludge. The third section aims to present an extended discussion on biodiesel production from microalgae to feedstock. The third section shows the importance of the implementation of a biorefinery, using all microalgae products to make the processes economically viable. The objective of the fourth section was to apply modeling and simulation techniques that can assist in the design and assisted development of catalysts and methods for obtaining sustainable and ecological biofuels and to develop new separators of the co-products of the biodiesel production process. The last section is about the microbial conversion of crude glycerol to bioplastics and their building-block molecules.This book aims to provide an in-depth analysis and discussion of the basics of biodiesel production, developing new value-added biofuels and their biorefineries of possible products from an improved raw material. The target audience includes researchers, engineering design and biodiesel production facilities and graduates seeking a benchmark in biodiesel production.
Author: Patrick C. Hallenbeck Publisher: Springer Science & Business Media ISBN: 1461412080 Category : Science Languages : en Pages : 262
Book Description
Concerns over dwindling fossil fuel reserves and impending climate changes have focused attention worldwide on the need to discover alternative, sustainable energy sources and fuels. Biofuels, already produced on a massive industrial scale, are seen as one answer to these problems. However, very real concerns over the effects of biofuel production on food supplies, with some of ht recent increases in worldwide food costs attributable to biofuel production, have lead to the realization that new, non-food substrates for biofuel production must be bought online. This book is an authoritative, comprehensive, up-to-date review of the various options under development for the production of advanced biofuels as alternative energy sources. A general overview and introductory chapters for each section place the field in the context as well as provide essential basic notions for the more general reader. Accomplished, internationally recognized experts carrying out research on individual focus areas contribute specific technical chapters detailing present progress and future prospects.
Author: Mansour Al Qubeissi Publisher: BoD – Books on Demand ISBN: 1789855357 Category : Science Languages : en Pages : 189
Book Description
Amongst concerns about climate change, energy security decline and depletion of fossil fuels, this book explores the high importance of and interests in alternative energy resources. Many studies have shown that biomass fuels are sustainable, environmentally friendly and can be the most appropriate replacement to the depleting crude oil. Additionally, they can expand green landscapes, create new job opportunities, be directly utilised in standard power systems and improve combustion performance. Biomass fuels can be limited due to production cost and competition with food. Therefore, plant and food wastes play an important role in reducing these costs and recycling dump bio-materials. Production of biofuels from non-food biomass has emerged as a sustainable option to tackle the problems associated with growing demands for energy.
Author: Abu Yousuf Publisher: Academic Press ISBN: 0128162805 Category : Science Languages : en Pages : 360
Book Description
Lignocellulosic Biomass to Liquid Biofuels explores the existing technologies and most recent developments for the production of second generation liquid biofuels, providing an introduction to lignocellulosic biomass and the processes for its conversion into biofuels. The book demonstrates biorefinery concepts compared with petro refinery, as well as the challenges of second generation biofuels processing. In addition to current pre-treatment techniques and their technical, environmental and economic implications, chapters included also further examine the particularities of conversion processes for bioethanol, biobutanol and biodiesel through chemical, biochemical and combined approaches. Finally, the book looks into concepts and tools for techno-economic and environmental analysis, which include supply chain assessment, by-products, zero-waste techniques and process evaluation and optimization. Lignocellulosic Biomass to Liquid Biofuels is particularly useful for researchers in the field of liquid biofuels seeking alternative chemical and biochemical pathways or those interested advanced methods to calculate maximum yield for each process and methods to simulate the implications and costs of scaling up. Furthermore, with the introduction provided by this volume, researchers and graduate students entering the field will be able to quickly get up to speed and identify knowledge gaps in existing and upcoming technology the book's comprehensive overview. - Examines the state-of-the-art technology for liquid biofuels production from lignocellulosic biomass - Provides a comprehensive overview of the existing chemical and biochemical processes for second generation biofuel conversion - Presents tools for the techno-economic and environmental analysis of technologies, as well as for the scale-up simulation of conversion processes
Author: Zhenhong Yuan Publisher: Walter de Gruyter GmbH & Co KG ISBN: 311042486X Category : Technology & Engineering Languages : en Pages : 568
Book Description
The book provides an overview on various microorganisms and their industrialization in energy conversion, such as ethanol fermentation, butanol fermentation, biogas fermentation and fossil energy conversion. It also covers microbial oil production, hydrogen production and electricity generation. The content is up to date and suits well for both researchers and industrial audiences.
Author: Vikash Babu Publisher: John Wiley & Sons ISBN: 1118835735 Category : Technology & Engineering Languages : en Pages : 248
Book Description
The search for alternative sources of energy to offset diminishing resources of easy and cost-effective fossil fuels has become a global initiative, and fuel generated from biomass is a leading competitor in this arena. Large-scale introduction of biofuels into the energy mix could contribute to environmentally and economicaly sustainable development on a global scale. The processes and methodologies presented in this volume will offer a cutting-edge and comprehensive approach to the production of biofuels, for engineers, researchers, and students.
Author: Kelly Frances O'Shea
Author: Kelly Frances O'Shea
Author: Hiren K. Patel
Author: Michael E Himmel
Author: Rajesh K. Sani
Author: Luisa Fernanda Rios Pinto
Author: Patrick C. Hallenbeck
Author: Mansour Al Qubeissi
Author: Abu Yousuf
Author: Zhenhong Yuan
Author: Vikash Babu