Promoting effect of various biomass ashes on the steam gasification of low-rank coal

被引：72

作者：

Rizkiana, Jenny ^{[1
]}

Guan, Guoqing ^{[1
,2
]}

Widayatno, Wahyu Bambang ^{[1
]}

Hao, Xiaogang ^{[3
]}

Li, Xiumin ^{[3
]}

Huang, Wei ^{[3
]}

Abudula, Abuliti ^{[1
,2
]}

机构：

[1] Hirosaki Univ, Grad Sch Sci & Technol, Hirosaki, Aomori 0368560, Japan

[2] Hirosaki Univ, North Japan Res Inst Sustainable Energy, Aomori 0300813, Japan

[3] Taiyuan Univ Technol, Sch Chem & Chem Engn, Taiyuan 030024, Peoples R China

来源：

APPLIED ENERGY | 2014年 / 133卷

关键词：

Biomass ash; Alkali and alkaline earth metal; Low rank coal; Steam gasification; Stability; RICE HUSK ASH; FLUIDIZED-BED; CO2; GASIFICATION; POWER-PLANTS; BOILER ASH; FLY ASHES; PERFORMANCE; CATALYST; GASIFIER; STRAW;

D O I：

10.1016/j.apenergy.2014.07.091

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Application of biomass ash as a catalyst to improve gasification rate is a promising way for the effective utilization of waste ash as well as for the reduction of cost. Investigation on the catalytic activity of biomass ash to the gasification of low rank coal was performed in details in the present study. Ashes from 3 kinds of biomass, i.e. brown seaweed/BS, eel grass/EG, and rice straw/RS, were separately mixed with coal sample and gasified in a fixed bed downdraft reactor using steam as the gasifying agent. BS and EG ashes enhanced the gas production rate greater than RS ash. Higher catalytic activity of BS or EG ash was mainly attributed to the higher content of alkali and alkaline earth metal (AAEM) and lower content of silica in it. Higher content of silica in the RS ash was identified to have inhibiting effect for the steam gasification of coal. Stable catalytic activity was remained when the amount of AAEM in the regenerated ash was maintained as that of the original one. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：282 / 288

页数：7

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