期刊
ENERGY & FUELS
卷 32, 期 5, 页码 5893-5900出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.energyfuels.7b03960
关键词
-
资金
- National Science & Technology Pillar Program [2014BAC26B04]
- National Natural Science Foundation of China [51406134]
Co-gasification experiments of acid hydrolysis residues (AHR) and sewage sludge (SS) both derived from a lignocellulosic ethanol plant were preliminarily investigated in a downdraft fixed gasifier at atmosphere pressure. Attention was focused on the effects of the gasifier bed temperature (600-800 degrees C), SS content (0-100 wt %), and equivalence ratio (ER, 0.15-0.30) on the gas quality and cold gas efficiency (CGE). The results showed that the optimal low heating value (LHV) of fuel gas of 6.83 MJ/Nm(3), CGE of 70.68%, and low tar content of 5.84 g/Nm(3) were obtained at 800 degrees C, SS content of 50 wt %, CaO/C (molar ratio) of 1.0, and ER of 0.22. A high temperature was favorable for high-quality gas production, and the optimum temperature was 800 degrees C, at which CaO mainly played the catalyst role but not the CO2 sorbent. Synergetic effects occurred in the co-gasification, and gas quality could be improved in an appropriate proportion by blending 50 wt % SS with AHR. ER ranging from 0.20 to 0.22 improved gas quality and CGE; however, a higher ER favored the decrease of the tar content, and the optimal tar content of 4.00 g/Nm(3) was obtained with ER = 0.30. The results indicated the potential technology for air co-gasification of AHR and SS as an option for energy recovery and waste disposal as well as for light industry with agricultural feedstock.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据