An industrial demonstration of biorefinery of lipids:coproduction of biodiesel and 1,3-propandiol

Transcription

1 Engineering Conferences International ECI Digital Archives BioEnergy IV: Innovations in Biomass Conversion for Heat, Power, Fuels and Chemicals Proceedings Spring An industrial demonstration of biorefinery of lipids:coproduction of biodiesel and 1,3-propandiol Dehua Liu Tsinghua University Follow this and additional works at: Part of the Chemical Engineering Commons Recommended Citation Dehua Liu, "An industrial demonstration of biorefinery of lipids:coproduction of biodiesel and 1,3-propandiol" in "BioEnergy IV: Innovations in Biomass Conversion for Heat, Power, Fuels and Chemicals", Manuel Garcia-Perez,Washington State University, USA Dietrich Meier, Thünen Institute of Wood Research, Germany Raffaella Ocone, Heriot-Watt University, United Kingdom Paul de Wild, Biomass & Energy Efficiency, ECN, The Netherlands Eds, ECI Symposium Series, (2013). bioenergy_iv/50 This Conference Proceeding is brought to you for free and open access by the Proceedings at ECI Digital Archives. It has been accepted for inclusion in BioEnergy IV: Innovations in Biomass Conversion for Heat, Power, Fuels and Chemicals by an authorized administrator of ECI Digital Archives. For more information, please contact

2 An industrial demonstration of biorefinery of lipids: Coproduction of biodiesel and 1,3-propandiol Dehua Liu Department of Chemical Engineering, Tsinghua University

3 outlines 1. Production of biodiesel with non-edible oils by enzymatic catalysis 2. Utilization of by-product crude glycerol for production of 1,3-propanediol

4 1. Production of biodiesel with nonedible oils by enzymatic catalysis

5 Biodiesel : defined as a substitute for, or an additive to diesel fuel that is derived from oils and fats of plants and animals CH 2 -OOC-R 1 CH-OOC-R 2 + 3R OH Catalyst R 1 -COOR' R 2 -COOR' CH 2 -OH CH-OH CH 2 OH R 3 -COOR' CH 2 -OOC-R 3 Glycerides Biodiesel Glycerol Catalyst R-COOH + R OH R-COOR + H 2 O Chemical approaches (alkali, acid) Transesterification at supercritical condition Enzymatic approaches (lipase)

6 Chemical ways Supercritical fluid systems Acid/alkali High temperature and pressure Waste water containing acid or alkaline requires extra treatment; it has high requirements for oil feedstocks quality especially with alkali as the catalyst. Much water needed to wash product. It is energy and capital intensive with reaction carried out at high temperature and high pressure conditions. Enzymatic ways lipase The transesterification can be performed under mild reaction conditions and the whole production process is environmentally friendly. Reducing the lipase cost is the key for lipase-mediated biodiesel production. Wash is not necessary. High cost of lipase is the major hurdle to the industrialization!

7 How to reduce the lipase cost is the key point Developing new lipases or improving the performance of lipases Maximizing/Extending the operational life of lipase

8 Negative effect oil lipase + Biodiesel + methanol glycerol Poor stability and activity of the lipase should be due to the negative effect of methanol and glycerol. With TU s novel technology, the negative effect of both methanol and glycerol on enzyme activity could be greatly eliminated Relative activity of the lipase(%) Cycle

9 Industrial demonstration of biodiesel production with enzymatic catalysis Industrial demonstration 2006~ Pilot scale 2004~2005 Laboratory 2001~2004

10 Technology demonstration in Brazil

11 2. Utilization of by-product crude glycerol for production of 1,3-propanediol

12 Million Gallons Price (cents/lb) How to deal with the by-product glycerol? Biodiesel Production Glycerol Price Trend 6, ,000 4,000 3,000 2,000 1, Year Time Vegetabl e Oil + Methanol Biodiese l + 10 Glycerol 1

13 Integrated production of Biodiesel and 1,3-PDO We have developed a novel flexible process for 1,3-PDO production from glycerol or glucose. glucose Yeast glycerol bacteria 1,3-PDO vegetable oil biodiesel PTT PTT (polytrimethylene terephthalate)

14 Crude glycerol Fermentation 1,3-propanediol (1,3-PDO) PTT (an important polyester)

15 Technical routes of 1,3-PDO production glycerol fermentation Seed culture C. krusei glucose k. pneumoniae Seed culture fermentation flocculation filtration PDO distillation concentration desalting Process Biochemistry, 2001, 36(12): Biotechnology Letter, 2004, 26(11): Biotechnology Letter, 2005, 44(12): Bioresource Technology, 2008, 99(5): Biochemical Engineering Journal, 2008, 39(2): Biotechnology and Bioengineering, 2008, 100(5): Process Biochemistry, 2009, 44(8): Biotechnology and Bioengineering, 2009, 104(5): 发酵过程优化 Optimization of fermentation 菌体筛选 Screening of strains 1,3- 丙二醇生产 Production of 1,3-propanediol 菌体改造 Modification of strains 发酵代谢机理与调控 Metabolic mechanisms and control ZL ;ZL ;ZL ZL ;ZL ;ZL ZL 产品分离与提纯 Separation and purification of product 过程设计与优化 Process design and optimization

16 Downstream processing of PDO production Evaporation optimization Desalination Distillation Membrane filtration Process simulation J. Chem. Tech. Biotechnol., 2006, 81(1): Ind. Eng. Chem. Res., 2005, 44(12): Sep. Purif. Technol., 2011, 83:9-24. Sep. Purif. Technol., 2010, 73(2): ZL ZL ZL ZL

17 Industrial scale demonstration

18 A plant with 20 kt PDO is under construction in China; Technology transfer to foreign markets is under consideration

19 More than 40 Chinese patents have been filed and 25 patents granted. 8 PCT patents have been filed and granted in US, EU, Canada, Russia, Australia, Singapore, Philippine, Africa, Japan, etc.

20 Acknowledgements China Ministry of Science and Technology China National Development and Reform Commission China Ministry of Education Our colleagues and Students..

21 Website: 7 th World Bioenergy Symposium (WBS) Sep29-Oct 3, 2013 Rio de Janeiro, BRAZIL

22 Website: 7 th World Bioenergy Symposium (WBS) September 29-October 3, 2013 Rio de Janeiro, Brazil Schedule Sep 29 (Sunday): Welcome reception Sep 30 (Monday): Plenary lectures Oct 1 (Tuesday): Session lectures Oct 2 (Wednesday): Tour in Rio de Janeiro Oct 3 (Thursday): Visit fuel ethanol plant or biodiesel plant Oct 4-6 (Friday-Sunday): Visit Amazon biomass resources

23 Thanks! Contacting: Tel: Fax: