Algae for Biofuels and Energy

• Author : Michael A. Borowitzka,Navid R. Moheimani
• Publisher : Springer Science & Business Media
• Release : 11 December 2012

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

• Author : S. Venkata Mohan,M. Prathima Devi,G. Venkata Subhash,Rashmi Chandra
• Publisher : Elsevier Inc. Chapters
• Release : 08 August 2013

Biologically produced fuels are considered potential and viable alternatives to meet the world’s fuel requirements. In this context, algal-based oil is of significant importance due to its renewable and carbon-neutral nature. Biosynthesis of triglycerides by utilizing CO2 (by biofixation) or wastewater under stress conditions via photoautotrophic, heterotrophic (photo/dark), or mixotrophic mechanisms enumerates the potential of microalgae for generation of renewable biodiesel. In addition to the algal cultivation, the conversion of the accumulated lipids to biodiesel is gaining considerable

• Author : Kuan-Yeow Show,Duu-Jong Lee
• Publisher : Elsevier Inc. Chapters
• Release : 08 August 2013

Extensive effort is being made globally to develop various biofuels as an inexhaustible and renewable energy source. Biofuels are viewed as promising alternatives to conventional fossil fuels because they have the potential to eliminate major environmental problems such as global warming and climate change created by fossil fuels. Among the still-developing biofuel technologies, biodiesel production from algae offers a good prospect for large-scale practical use, considering the fact that algae are capable of producing much more yield than other biofuels

• Author : Carlos José DalmasNeto,Eduardo Bittencourt Sydney,Ricardo Assmann,DolivarCoraucci Neto,Carlos Ricardo Soccol
• Publisher : Elsevier Inc. Chapters
• Release : 08 August 2013

Biofuel production from microalgae has been gaining importance in recent years as an alternative (nonpolluting) fuel source, but the industry faces economic challenges. In this context, a feasible technology of bio-oil production from microalgal biomass through fast pyrolysis is presented in this chapter. A microalga was cultivated in a cheap ethanol-wastewater-based medium, harvested, dried, and subjected to fast pyrolysis, the conditions of which were controlled to generate high yield of bio-oil. Bio-oil yield was 17.4% (m/m), with lower heating value (

• Author : A. Catarina Guedes,Helena M. Amaro,Isabel Sousa-Pinto,F. Xavier Malcata
• Publisher : Elsevier Inc. Chapters
• Release : 08 August 2013

There are several difficulties in developing algal biofuels that can fully replace fossil fuels; the main challenges relate to lower environmental impact (including the possibility of CO2 sequestering and wastewater treatment) and economic feasibility. To date, most studies have focused on selection of species, coupled with optimization of cultivation, biomass harvest and fuel extraction; efforts on enhancing environmental benefits and upgrading spent biomass are thus in order. Industry should indeed adopt an integrated strategy inspired by algal-based biorefineries – toward maximizing

• Author : Man Kee Lam,Keat Teong Lee
• Publisher : Elsevier Inc. Chapters
• Release : 08 August 2013

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

• Author : Leonel Pereira
• Publisher : CRC Press
• Release : 28 July 2017

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.

• Author : Pierre Collet,Daniele Spinelli,Laurent Lardon,Arnaud Hélias,Jean-Philippe Steyer,Olivier Bernard
• Publisher : Elsevier Inc. Chapters
• Release : 08 August 2013

Fossil-fuel depletion and attempts at global-warming mitigation have motivated the development of biofuels. Several feedstock and transformation pathways into biofuel have been proposed as an alternative to the usual fuels. Recently, microalgae have attracted a good deal of attention because of the promise of reduced competition with food crops and lowered environmental impacts. Over the last years, several life-cycle assessments (LCAs) have been realized to evaluate the energy benefit and potential global-warming reduction of biofuel and bioenergy produced from microalgae.

• Author : U. S. Department of Energy,Office of Energy Efficiency and Renewable Energy,U. S. Government
• Publisher : Unknown
• Release : 15 April 2017

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

• Author : Rawel Singh,Thallada Bhaskar,Bhavya Balagurumurthy
• Publisher : Elsevier Inc. Chapters
• Release : 08 August 2013

Energy security, increasing oil prices, fossil resource depletion, and climate change are some of the greatest challenges faced by mankind at present. Third-generation biofuel feedstock and micro-and macroalgae have many advantages over the first and second generations of biofuels. In addition, defatted algae can also be used as a feedstock for production of hydrocarbons. Thermochemical methods are more efficient than any other routes for conversion of algae. Among thermochemical methods, hydrothermal upgradation is the most promising because it can process

• Author : Luisa Gouveia
• Publisher : Springer Science & Business Media
• Release : 30 January 2011

This Brief provides a concise review of the potential use of microalgae for biofuel production. The following topics are highlighted: the advantages of microalgae over conventional biofuel-producing crops; technological processes for energy production using microalgae; microalgal biomass production systems, production rates and costs; algae cultivation strategies and main culture parameters; biomass harvesting technologies and cell disruption; CO2 sequestration; life cycle analysis; and algal biorefinery strategies. The conclusions section discusses the contribution of the technologies described to environmental sustainability and future

• Author : Mostafa El-Sheekh,Abd El-Fatah Abomohra
• Publisher : Elsevier
• Release : 10 December 2021

Handbook of Algal Biofuels: Aspects of Cultivation, Conversion and Biorefinery comprehensively covers the cultivation, harvesting, conversion and utilization of algae for biofuels. Section cover algal diversity and composition, micro- and macroalgal diversity, classification and composition, their cultivation, biotechnological applications, and their current use in industry in biofuels and value-added products. Other sections address algal biofuel production, presenting detailed guidelines and protocols for the production of biodiesel, biogas, bioethanol, biobutanol and biohydrogen, along with thermochemical conversation techniques and integrated approaches for

• Author : Ashok Pandey,Duu-Jong Lee,Yusuf Chisti,Carlos R. Soccol
• Publisher : Newnes
• Release : 08 August 2013

This book provides in-depth information on basic and applied aspects of biofuels production from algae. It begins with an introduction to the topic, and follows with the basic scientific aspects of algal cultivation and its use for biofuels production, such as photo bioreactor engineering for microalgae production, open culture systems for biomass production and the economics of biomass production. It provides state-of-the-art information on synthetic biology approaches for algae suitable for biofuels production, followed by algal biomass harvesting, algal oils

• Author : Umakanta Jena,S. Kent Hoekman
• Publisher : Frontiers Media SA
• Release : 18 May 2017

Algae biomass has enormous potential to produce fuels and value-added products. Algae-derived biofuels and bioproducts offer great promise in contributing to U.S. energy security and in mitigating the environmental concerns associated with conventional fuels. Algae’s ability to grow in low quality water/wastewater and to accumulate lipids has encouraged scientists to investigate algae as a medium for wastewater treatment and a potential source of fuel and bioproducts. There are growing demands for biomass-based transportation fuels, including biodiesel, bio-oil,

• Author : Hong-Wei Yen,I-Chen Hu,Chun-Yen Chen,Jo-Shu Chang
• Publisher : Elsevier Inc. Chapters
• Release : 08 August 2013

The cultivation of phototrophic microalgae has been recognized as a promising platform for the production of renewable biofuels and a variety of valuable products through a series of biorefinery processes. To enable microalgal growth at the maximum productivity level to enhance economic competitiveness, the design of photobioreactors for efficient and cost-effective phototrophic cultivation is one of the most important issues in practice. This article elucidates comprehensive information on the characteristics of microalgae cultivation as well as the key factors and