Rapid co-pyrolysis of rice straw and a bituminous coal in a high-frequency furnace and gasification of the residual char

被引：168

作者：

Yuan, Shuai ^{[1
]}

Dai, Zheng-hua ^{[1
]}

Zhou, Zhi-jie ^{[1
]}

Chen, Xue-li ^{[1
]}

Yu, Guang-suo ^{[1
]}

Wang, Fu-chen ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat, Shanghai 200237, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2012年 / 109卷

关键词：

Co-pyrolysis; Biomass; Coal; Gasification; Char; BIOMASS; BLENDS; LIGNITE; MODELS;

D O I：

10.1016/j.biortech.2012.01.019

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Rapid pyrolysis of rice straw (RS) and Shenfu bituminous coal (SB) separately, and rapid co-pyrolysis of RS/SB blends (mass ratio 1:4, 1:4, and 4:1), were carried out in a high-frequency furnace which can ensure both high heating rate and satisfying contact of fuel particles. Synergies between RS and SB during rapid co-pyrolysis were investigated. Intrinsic and morphological structures of residual char from copyrolysis, and their effects on gasification characteristics were also studied. Synergies occurred during rapid co-pyrolysis of RS and SB (RS/SB = 1:4) resulting in decreasing char yields and increasing volatile yields. Synergies also happened during gasification of the char derived from copyrolysis of RS and SB with mass ratio of 1:4. The increased mass ratio of RS to SB did not only weaken synergies during co-pyrolysis, but significantly reduced the gasification rates of the co-pyrolysis char compared to the calculated values. Results can help to optimize co-conversion process of biomass/coal. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：188 / 197

页数：10

共 31 条

[1] Low-temperature co-pyrolysis of a low-rank coal and biomass to prepare smokeless fuel briquettes [J].