Journal
JOURNAL OF THE ENERGY INSTITUTE
Volume 92, Issue 5, Pages 1329-1336Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.joei.2018.10.002
Keywords
Gasification; Biomass; Aspen plus; Exergy; Energy
Categories
Funding
- National Natural Science Foundation of China [21407111]
- National Key Research and Development Plan of air pollution causes and control technology research [2017YFC0211900]
- Natural Science Foundation of Jiangsu Province [BK20140280]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Jiangsu Collaborative Innovation Center of Technology and Material for Water Treatment
- Excellent Innovation Team in Science and Technology of Education Department of Jiangsu Province
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An Aspen Plus model of biomass gasification with different gasifying agents has been developed. Due to lack of kinetic data, the developed model is based on Gibbs free energy minimization. The main objective of this study is to study the influence of gasifying agent (pure oxygen; oxygen-enriched air and air), gasification temperature and equivalence ratio (ER) on gas composition, gas lower heating value (LHV), and energy/exergy efficiencies. The developed model was validated with experimental data which was found to be in well agreement. Increase in gasification temperature led to a significant increase in H-2 content. On the other hand, an increase in ER led to a significant reduction in H-2, CO, and CH4 and a significant increase in CO2. Also, a gradual downward trend of exergy efficiency (EE) was found, as ER increased from 0.15 to 0.21, while it basically kept constant as the gasification temperature was varied. (C) 2018 Energy Institute. Published by Elsevier Ltd. All rights reserved.
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