Integration Feasibilities for Combined Cycles in Biofuel Production
2011 (English)In: Proceedings of the 24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2011, Nis University , 2011, 3498-3508 p.Conference paper (Refereed)
The aim of this paper is to evaluate the opportunities for gas turbine integration into biofuel production. When producing biofuels via gasification, a significant amount of the input of chemical energy is converted to reaction heat. A steam cycle is therefore used to recover the heat to useful power, but despite that, the plant often remains net users of electricity. To further enhance the production several studies suggest integration of gas turbines, often fired with offgas from the fuel synthesis. The excess of low level heat in the gas turbine exhaust is successfully integrated in the steam cycle which creates integration synergies. Gasification of biomass for fuel synthesis generally implies that oxygen is used as gasification agent. Despite the synergies in the joint steam cycle, the positive effects are outweighed by the energy penalty from oxygen production. Conclusively, serial production of biofuel and power is not beneficial. More interesting is the integrating of a parallel, air-blown gasifier to produce syngas for the gas turbine. Also the natural gas fired gas turbines have successfully been integrated.
Place, publisher, year, edition, pages
Nis University , 2011. 3498-3508 p.
Biofuel, Biomass, Combined Cycle, Hybrid, Polygeneration, Syngas
Energy Engineering Chemical Process Engineering
IdentifiersURN: urn:nbn:se:kth:diva-105547ScopusID: 2-s2.0-84903647615ISBN: 978-866055016-5OAI: oai:DiVA.org:kth-105547DiVA: diva2:571422
24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2011, Novi Sad, Serbia, 4 July 2011 through 7 July 2011
QC 201211232012-11-232012-11-222015-04-22Bibliographically approved