文献类型：期刊文献

中文题名：高效能两段组合式煤气化过程热态试验

英文题名：Hot-state experiment of high-performance two stage combined coal gasification

作者：黄桃花[1];王亦飞[1];焦延涛[1];金渭龙[1];苏攀[1]

机构：[1]华东理工大学煤气化教育部重点实验室,上海200237

年份：2010

卷号：61

期号：11

起止页码：2924

中文期刊名：化工学报

外文期刊名：CIESC Journal

收录：CSTPCD;;EI(收录号：20105013479830);Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家高技术研究发展计划项目(2008AA05Z310)~~

语种：中文

中文关键词：两段式气化工艺;碳转化率;煤气热值

外文关键词：two stage combined gasification; carbon conversion; syngas heating capacity

摘要：针对现有气流床气化技术在显热回收方面的不足,华东理工大学洁净煤技术研究所创新性开发煤基两段组合式气化工艺。在所建立的两段组合式煤气化炉热态试验装置上,考察了二段处理煤量和一段出口煤气组成对出口煤气热值、有效气浓度、二段碳转化率、水蒸气和二氧化碳转化率的影响。试验结果表明此气化工艺能有效利用一段炉煤气中的显热,提高气化炉出口煤气热值;二段适宜加入褐煤量为1400g,是一段处理量的10%;二段加煤量过多会降低二段煤层反应温度和促使焦油的生成;随着一段气化炉出口煤气所含水蒸气、CO2等气化剂浓度的增加,其对显热回收的作用就更明显;该工艺能减少CO2排放,具有良好的环境效益。
A new two stage combined gasification process was proposed by the Institute of Clean Coal Technology,East China University of Science and Technology,which is of high-performance in reducing carbon dioxide emissions and can make the use of recycling sensible heat to make up the heat recovery deficiency of nowadays＇ entrained gasification process.The effect of coal mass adding to the second stage and the gas compositions from the first stage on the heat value of the second stage＇s outlet coal gas,the concentration of H2 and CO,the carbon conversion and the conversion of H2O and CO2 in the second gasification stage were examinated at hot-state in a two stage combined coal gasifier.The experiment results showed that this two stage gasification technology could utilize the sensible heat sufficiently and improved heat value of outlet coal gas.The optimized coal mass adding to the second stage was 1400 g,which was 10% of the first stage＇s coal mass.The excessive adding would result in tar formation and reducing reaction temperature of the coal layer in the second stage.The efficiency of recovery heat became more obvious with the increase of H2O and CO2 concentration in the first stage.Furthermore,it made great contribution to the environment with reducing carbon dioxide emissions.