期刊
BIORESOURCE TECHNOLOGY
卷 109, 期 -, 页码 188-197出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.01.019
关键词
Co-pyrolysis; Biomass; Coal; Gasification; Char
资金
- National Basic Research Program of China [2010CB227000]
- Shanghai Technology Innovation Action Plan
- Fundamental Research Funds for the Central Universities
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.
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