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Trigeneration integrated with absorption enhanced reforming of lignite and biomass

Lookup NU author(s): Dr Yaodong Wang, Professor Tony Roskilly

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Abstract

A technical investigation of an innovative trigeneration integrated with absorption enhanced reforming (AER) of lignite and biomass is carried out using the ECLIPSE process simulator. The system includes an internal combustion engine, an AER gasifier, a waste heat recovery and storage unit and an absorption refrigerator. The whole system is operated in the following sequence: The AER gasifier is used to generate hydrogen using lignite and biomass; the hydrogen generated is used to run the engine which drives a generator to produce electricity. Additionally, the heat recovery unit collects waste heat from the engine and is used to supply hot water and space heating. Furthermore, the waste heat is used to operate the absorption refrigerator. The electricity, heat and cooling can be used to meet the energy requirements for the households in a village, a resident building or a commercial building, or a supermarket. Within the study, the effects of lignite mixed with three different types of biomass (straw, willow and switch grass) on the system performance are investigated and the results are compared. The results show that it is feasible to use an AER system to reform the low quality fuels lignite and biomass to generate a cleaner fuel – hydrogen to replace fossil fuels (diesel or natural gas) and to fuel an engine based trigeneration system; the system works with high efficiencies and with a potential of carbon capture from the sorbent-regeneration process that would benefit the environment.


Publication metadata

Author(s): Wang Y, Huang Y, Roskilly AP

Publication type: Article

Publication status: Published

Journal: Fuel

Year: 2009

Volume: 88

Issue: 10

Pages: 2004-2010

ISSN (print): 0016-2361

ISSN (electronic): 1873-7153

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.fuel.2009.03.003

DOI: 10.1016/j.fuel.2009.03.003


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