燃料化学学报2001，Vol.29Issue(2)：129-134,6.
煤中矿物质对NO-半焦还原反应的影响
INFLUENCE OF MINERAL MATTER IN COAL ON NO-CHAR REACHON
摘要
Abstract
The NO-char reduction in the presence and absence of mineral matter was studied. Four Chinese coals with different ranks from lignite to anthracite were demineralized with HC1/HF and the chars were prepared by devolatilizing the deashed coals and their original coals in a quartz fluidized-bed reactor. NO reduction by the resulting chars was conducted in a quartz fixed bed at atmospheric pressure. The results showed that alkali metal Na and alkali earth metal Ca catalyzed the NO-char reaction significantly. However, the catalytic effect of Fe in the mineral matter was weak due to the inhibition of inert composition. Kinetics data of NO-reaction reduction by coal chars in the presence and absence of mineral matter were obtained. Two temperature regimes were found in the NO-char reaction, which suggested the mechanism shift in the transition temperature.关键词
矿物质/NO/半焦/动力学分类
化学化工引用本文复制引用
赵宗彬,李保庆..煤中矿物质对NO-半焦还原反应的影响[J].燃料化学学报,2001,29(2):129-134,6.
