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作 者:崔丽杰[1] 李欣[1] 李松庚[2] 林伟刚[2]
机构地区:[1]中国科学院研究生院化学与化学工程学院,北京100049 [2]中国科学院过程工程研究所多相复杂系统国家重点实验室,北京100190
出 处:《煤炭科学技术》2012年第10期124-128,共5页Coal Science and Technology
基 金:国家重点基础研究发展计划(973计划)资助项目(2011CB706901);国家自然科学基金资助项目(20706057;51174284)
摘 要:为深入了解褐煤热解过程,并与霍林河褐煤的喷动载流床快速热解进行对比,对霍林河褐煤及其热解焦油进行了管式炉反应器热解试验研究,利用在线连接的傅里叶红外光谱仪对热解逸出的气体进行了检测。结果表明,霍林河褐煤的管式炉反应器中速热解与喷动载流床快速热解的变化规律基本相同,对于低温热解,煤粉粒径的影响更大。热解焦油的受热反应包括裂解和缩聚两部分,裂解反应生成了CO、CH4、H2等气体,而缩聚反应转化为炭黑,热解过程中焦油在600℃前所发生的二次反应较弱。In order to deeply understand the pyrolysis process of the lignite and in comparison with the spouted bed rapid pyrolysis of the lignite, a research was conducted on the tube reactor pyrolysis experiments with Huolinhe lignite and the pyrolysis tar. The on-line con- nected Fourier infrared spectrometer was applied to detect the pyrolysis released gas. The results showed that the Huolinhe lignite rapid pyrolysis in the tube reactor and the rapid pyrolysis in the spouted bed were basically the same in the variation law. When the low temper- ature pyrolysis applied, the particle diameter of the lignite powder would have high influences. The thermal reaction of the pyrolysis tar would include the cracking and condensation. With the cracking reaction, the pyrolysis tar would generate CO, CH4, H2 and other gas and with the condensation reaction, the pyrolysis tar would be converted to carbon black. Before reached at 600℃, the tar in the pyroly- sis process would have twice weak reactions.
分 类 号:TQ530.2[化学工程—煤化学工程]
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