Study on air gasification characteristics of straw in tube furnace

2018 International Conference on New Energy and Future Energy System

Zeng, R.H.^1 ; Wang, S.Z.^1,2 ; Cai, J.J.^1

Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'An Jiaotong University, No. 28 Xianning West Road, Xi'an, Shaanxi

170049, China^1

Guangdong xi'An Jiaotong University Academy, Guangdong Province, Foshan

528000, China^2

关键词: Air gasification;    Equivalence ratios;    Gas compositions;    Gas conditions;    Gasification efficiency;    Operating condition;    Straw materials;    Tube furnaces;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/188/1/012049/pdf
DOI  :  10.1088/1755-1315/188/1/012049

来源: IOP

【 摘 要 】

An experimental study on air gasification of straw was conducted in a tube furnace. The effect of the equivalence ratio (0.1-0.4) and temperature (600-900°C) on various gasification results, including gas composition and vaporized residue was investigated. The equivalence ratio(ER) appeared to have a significant effect on the result of gasification, and the experiment demonstrated the optimal gasification parameters (ER is approximately at 0.2, T is at 800°C). Under this operating condition, the residue after gasification of straw air accounts for about 7.39% of the original straw material, the combustible components in the gasification synthesis gas occupy 71.01% of the total volume, the H2 content is 17.49%, the CO content is 38.02% and the CH4 content is 15.49%. The intersection of the CO and CO2 line charts has realistic implications for the selection of the optimal gas conditions (T, ER) and the increase of gasification efficiency.