Journal
APPLIED THERMAL ENGINEERING
Volume 59, Issue 1-2, Pages 278-282Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2013.05.042
Keywords
Renewable energy; Coal; Co-gasification; Autothermal fluidized bed gasifier; Reaction temperature
Funding
- Agricultural Achievement Transforming Capital Projects of the Ministry of Science and Technology [2008GB2C100099]
- Power Machinery Clean Energy and Application of Key Laboratory Projects of Jiangsu Province [QK09005]
- Science and Technology Project of Suzhou Province [040105]
- Science and Technology Support Project of Jiangsu Province [BE2008051]
Ask authors/readers for more resources
In this study, thermochemical biomass and coal co-gasification were performed on an autothermal fluidized bed gasifier, with air and steam as oxidizing and gasifying media. The experiments were completed at reaction temperatures of 875 degrees C-975 degrees C, steam-to-biomass ratio of 1.2, and biomass-to-coal ratio of 4. This research aims to determine the effects of reaction temperature on gas composition, lower heating value (LHV), as well as energy and exergy efficiencies, of the product gas. Over the ranges of the test conditions used, the product gas LHV varies between 12 and 13.8 MJ/Nm(3), and the exergy and energy efficiencies of the product gas are in the ranges of 50.7%-60.8% and 60.3%-85.1%, respectively. The results show that high reaction temperature leads to higher H-2 and CO contents, as well as higher exergy and energy efficiencies of the product gas. In addition, gas LHV decreases with temperature. The molar ratio of H-2/CO is larger than 1 at temperatures above 925 degrees C. Our experimental analysis shows that co-gasification of biomass and coal in an autothermal fluidized bed gasifier for gas production is feasible and promising.. (C) 2013 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available