updates on algal biofuel production in china...algal species from shenzhen bay and pearl river delta...
TRANSCRIPT
Updates on Algal Biofuel Production in
China
Moderator: Guangyi Wang
Prof. & Director
Tianjin Univ. Center for Marine Ecology
School of Environ. Science & Engineering
Tianjin University
2013 Bio Pacific Rim Summit, December 8-11, San Diego, USA
Energy Challenges of China
Over 60% energy imported abroad
By the end of the 12th five-year, non-fossil fuel
consumption increased to 11.4% and major green house
gases reduced by 8-20%;
Reduce energy consumption and
effectively control CO2 emission
in the 12th “five-year”;
Food-crops can not be used to produce energy. Non-food
fuel is the only option.
New Energy Policy
来源:国务院参事办公室
Advantages (cont’d)
Advantages of Algal Biofuels
Panel Speakers:
Guangyi Wang (Tianjin University)
Pengcheng Fu (Beijing University of Chemical
Technology)
Weiwen Zhang (Tianjin University)
Zhongxin Yang (Hangzhou Xinwei Low-carbon
Tech R&D Ltd)
2013 Bio Pacific Rim Summit, December 8-11, San Diego, USA
Production of Biofuels and Chemicals
Using Microalgae Isolated from the Coastal
Regions of China
Prof. & Director Guangyi Wang
Tianjin University Center for Marine Ecology
School of Environmental Science & Engineering
Tianjin University
&
Peking University Shenzhen Graduate School
2013 Bio Pacific Rim Summit, December 8-11, San Diego, USA
R&D Program for Algal Biofuels
R&D Program for Algal Biofuels and High-valued Bioproducts
Biodiversity & environmental
ecology
Life-cycle Analysis & environmental
impacts
Extraction & purification
Thraustochytrids & DHA/oil production
Large-scale production & photo-bioreactor designing
Strain Improvement using synthetic
approaches
Biodiesel, aviation fuels, ethanol, protein, polysaccharide, materials etc.
R&D Program (cont’d)
Biological diversity and ecology
To date >300 different species of local algae have been collected and identified.
Isolation cultivation and characterisation of algal species from Shenzhen Bay and Pearl River Delta
Ongoing experiments focus on characterisation of the most suitable algal species for algal biofuel production (growth rate, lipid accumulation, starch accumulation).
R&D Program (cont’d)
Distribution of algal species (A) and families (B)
(Daroch et al., 2013)
R&D Program for Algal Biofuels
Biological and chemical
features of the microalgal strain
PKUAC 169 (Daroch et al.,
2013)
R&D Program (cont’d)
Marine fungal nutraceuticals
Marine fungi and algae from coastal seawater and sediments contain a wealth of compounds that provide health and medical benefits.
Thraustochytrids are biotechnologically potential marine protists: produce docosahexaenoic acid (DHA), an omega-3 polyunsaturated fatty acid (ω-3 PUFA) that is important for human health and development.
Jain et al, 2007
Eicosapentaenoic acid
R&D program (cont’d)
Fatty acid profile
Nile red staining
Liu et al, 2013
R&D Program (cont’d)
Large scale algae cultivation, biomass
production and bioreactor design
Biofuel production requires large productivities and development of photobioreactors.
Large-scale Production
*40 metric tons of fresh biomas (8 tons dry weight) per mu
(300 days)
R&D Program (cont’d)
Biofuel production
Future research will involve lipase-catalysed in situ transesterification of algal oils to biodiesel and production of bioethanol through metabolic engineering.
Production of liquid transportation fuel focuses on biodiesel and bio-kerosene and is currently achieved via chemical methods.
Lu et al. 2011
Transesterification Extraction Biodiesel Biodiesel & Aviation Fuels
Extraction & Conversion
Micro-algal BioEthanol
Guo et al. 2013
Micro-algal BioEthanol (cont’d)
Guo et al. 2013
Growth curves and sugar/production production
Micro-algal BioEthanol (cont’d)
Guo et al. 2013
PKUAC 9
PKUAC 12
Ethanol production using
hydrolysates from algal biomass
Optimization of saccharification
processes;
Engineering strains for 5-carbon
sugars.
Algal Ethanol (cont’d)
Summary Low diversity of microalgal strains is found in the coastal
waters of China;
Thraustochytrids are rich in fatty acids and good resources for
DHA and biodiesel production
Hindakia PKUAC 169 is good candidate for biodiesel
production
Salt stress yielded 3 times more lipid productivity than nitrogen
starvation;
Predominantly composed of C14-C18 fatty acids;
Content of PUFA below 12% (EN14214).
Scenedesmus abundans PKUAC 12 is a good candiate for
ethanol production
total sugars of 10.75 g L-1 and glucose 5.73 g L-1 ;
103.0 g EtOH/kg dry weight (Saccharomyces cerevisiae).
Acknowledgements
Reform and Development Commission of Shenzhen
Municipal Government (China);
Natural National Science Foundation of China;
Hawaii Marine Renewable Energy Test Center-USDOE;
“985” Supporting Funds from Department of
Education (Tianjin University, China);
Designated Marine Industrial R&D Program of State
Oceanic Administration (China).
Thank You!