Biohydrogen production from microalgal biomass: energy requirement, CO2 emissions and scale-up scenarios.

This paper presents a life cycle inventory of biohydrogen production by Clostridium butyricum through the fermentation of the whole Scenedesmus obliquus biomass. The main purpose of this work was to determine the energy consumption and CO2 emissions during the production of hydrogen. This was accomplished through the fermentation of the microalgal biomass cultivated in an outdoor raceway pond and the preparation of the inoculum and culture media. The scale-up scenarios are discussed aiming for a potential application to a fuel cell hybrid taxi fleet. The H2 yield obtained was 7.3 g H2/kg of S. obliquus dried biomass. The results show that the production of biohydrogen required 71-100 MJ/MJ(H2) and emitted about 5-6 kg CO2/MJ(H2). Other studies and production technologies were taken into account to discuss an eventual process scale-up. Increased production rates of microalgal biomass and biohydrogen are necessary for bioH2 to become competitive with conventional production pathways.

[1]  Carla Silva,et al.  Electric and plug-in hybrid vehicles influence on CO2 and water vapour emissions , 2011 .

[2]  Carla Silva,et al.  Energy consumption and CO2 emissions of potato peel and sugarcane biohydrogen production pathways, applied to Portuguese road transportation , 2011 .

[3]  Mei-Ling Chong,et al.  Biohydrogen production by Clostridium butyricum EB6 from palm oil mill effluent , 2009 .

[4]  A. Demirbas,et al.  Biohydrogen: For Future Engine Fuel Demands , 2009 .

[5]  L. Gouveia,et al.  Pre-treatment optimization of Scenedesmus obliquus microalga for bioethanol production. , 2012, Bioresource technology.

[6]  R. P. John,et al.  Micro and macroalgal biomass: a renewable source for bioethanol. , 2011, Bioresource technology.

[7]  Debabrata Das,et al.  Biohydrogen as a renewable energy resource—Prospects and potentials , 2008 .

[8]  Joao M. C. Sousa,et al.  Multi-Objective Optimization of Fuel Cell Hybrid Vehicle Powertrain Design - Cost and Energy , 2013 .

[9]  Carla Silva,et al.  A biorefinery from Nannochloropsis sp. microalga - energy and CO2 emission and economic analyses. , 2013, Bioresource technology.

[10]  Ana Cristina Oliveira,et al.  Oil Production Towards Biofuel from Autotrophic Microalgae Semicontinuous Cultivations Monitorized by Flow Cytometry , 2009, Applied biochemistry and biotechnology.

[11]  Hermann-Josef Wagner,et al.  Life Cycle Assessment and Process Development of Photobiological Hydrogen Production–From Laboratory to Large Scale Applications , 2012 .

[12]  Banwari Lal,et al.  Improvement of hydrogen production under decreased partial pressure by newly isolated alkaline tolerant anaerobe, Clostridium butyricum TM-9A: Optimization of process parameters , 2012 .

[13]  Joo-Hwa Tay,et al.  Biohydrogen production: Current perspectives and the way forward , 2012 .

[14]  Carla Silva,et al.  Energy requirement and CO2 emissions of bioH2 production from microalgal biomass. , 2013 .

[15]  F. Bux,et al.  Biodiesel from microalgae: A critical evaluation from laboratory to large scale production , 2013 .

[16]  Hsien Hui Khoo,et al.  Life cycle energy and CO2 analysis of microalgae-to-biodiesel: preliminary results and comparisons. , 2011, Bioresource technology.

[17]  Ana Cristina Oliveira,et al.  Microalgae as a raw material for biofuels production , 2009, Journal of Industrial Microbiology & Biotechnology.

[18]  Paul Leonard Adcock,et al.  Fuel cell hybrid taxi life cycle analysis , 2011 .

[19]  Michael K. Danquah,et al.  Microalgae bioengineering: From CO2 fixation to biofuel production , 2011 .

[20]  Vincent Mahieu,et al.  Well-to-wheels analysis of future automotive fuels and powertrains in the european context , 2004 .

[21]  S. Mandal,et al.  Microalga Scenedesmus obliquus as a potential source for biodiesel production , 2009, Applied Microbiology and Biotechnology.

[22]  B. Nobre,et al.  Nannochloropsis sp. biomass recovery by Electro-Coagulation for biodiesel and pigment production. , 2013, Bioresource technology.

[23]  Florbela Carvalheiro,et al.  In vitro fermentation of xylo-oligosaccharides from corn cobs autohydrolysis by Bifidobacterium and Lactobacillus strains , 2007 .

[24]  Patrícia Baptista,et al.  Plug-in hybrid fuel cell vehicles market penetration scenarios , 2010 .

[25]  L. Gouveia,et al.  Bioethanol production from Scenedesmus obliquus sugars: the influence of photobioreactors and culture conditions on biomass production , 2012, Applied Microbiology and Biotechnology.

[26]  Carla Silva,et al.  Biological hydrogen production by Anabaena sp. – Yield, energy and CO2 analysis including fermentative biomass recovery , 2012 .

[27]  Gerrit Brem,et al.  Assessment of a dry and a wet route for the production of biofuels from microalgae: energy balance analysis. , 2011, Bioresource technology.