煤焦在加压条件下的气化反应性研究

在高压管式炉试验装置上,进行了煤焦在加压条件下的气化反应动力学研究,采用缩芯模型对试验数据进行处理,得到煤焦与二氧化碳及水蒸气气化反应的动力学参数.试验结果表明,温度和压力越高,煤焦的气化反应性越好;煤焦在水蒸气气氛下反应活性高于二氧化碳气氛下煤焦反应活性;缩芯模型适用于煤焦在加压情况下气化反应动力学计算研究;煤焦在加压气化时活化能与指前因子之间存在补偿效应.

Research on gasified reactivity of coal char under pressurized conditions

A gasified reaction kinetics research on the coal char was conducted under pressurized conditions in the high pressure tube fur- nace device.A shrinking core model was applied to the processing of the experiment data.The coal char,carbon dioxide and the kinetics parameters from the steam gasified reaction were obtained from the experiment.The experiment results showed that the higher of the tem- perature and pressure would have a better gasified reaction of the coal char.The reaction activity of coal char u...