铁元素对褐煤热解和气化特性影响的实验研究

An Experimental Study on the Effects of Iron on the Pyrolysis and Gasification Characteristics of Brown Coal

以煤炭热解和气化为核心技术的多联产系统是我国煤炭清洁利用技术的发展方向之一.利用实验室台架进行植入铁元素后的褐煤的热解和气化,研究了铁元素对褐煤热解和气化的半焦产物的影响,分析了铁在褐煤热解和气化过程中的迁移和转化.结果表明:植入铁元素降低了酸洗煤样的热解失重率,可提高半焦产量,同时,还能提高褐煤半焦在水蒸汽气化过程中的反应活性.

Poly-generation system based on coal pyrolysis and gasification is one of the options of clean and efficient utilization of coal in China. In this paper, experimental study on the effects of iron loading on the pyrolysis and gasification characteristics of brown coals has been carried out and the changes in char products because of iron-loading were analysed. The transformation of iron species during pyrolysis and gasification processes is discussed. Express as a result ： Transplanted iron chemical element to lower sour the hot solution of kind washing coal lose specific gravity, can raise half burnt yield, at the same time, can also raise brown coal half burnt gasify the reaction activity in the process in water steam.