Release characteristics of alkali and alkaline earth metallic species during biomass pyrolysis and steam gasification process

被引：182

作者：

Jiang, Long ^{[1
]}

Hu, Song ^{[1
]}

Xiang, Jun ^{[1
]}

Su, Sheng ^{[1
]}

Sun, Lun-shi ^{[1
]}

Xu, Kai ^{[1
]}

Yao, Yao ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 430074, Hubei, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2012年 / 116卷

基金：

美国国家科学基金会;

关键词：

Biomass; Pyrolysis; Char gasification; Alkali metal; Alkaline earth metal; VICTORIAN BROWN-COAL; GAS-PHASE; COMBUSTION; CHAR; VOLATILIZATION; BED; TEMPERATURE; REACTIVITY; MECHANISMS; EMISSION;

D O I：

10.1016/j.biortech.2012.03.051

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Investigating the release characteristics of alkali and alkaline earth metallic species (AAEMs) is of potential interest because of AAEM's possible useful service as catalysts in biomass thermal conversion. In this study, three kinds of typical Chinese biomass were selected to pyrolyse and their chars were subsequently steam gasified in a designed quartz fixed-bed reactor to investigate the release characteristics of alkali and alkaline earth metallic species (AAEMs). The results indicate that 53-76% of alkali metal and 27-40% of alkaline earth metal release in pyrolysis process, as well as 12-34% of alkali metal and 12-16% of alkaline earth metal evaporate in char gasification process, and temperature is not the only factor to impact AAEMs emission. The releasing characteristics of AAEMs during pyrolysis and char gasification process of three kinds of biomass were discussed in this paper. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：278 / 284

页数：7

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