轻烃芳构化催化剂的再生  

Regeneration of Light Hydrocarbon Aromatization Catalyst

作　　者：王子健[1] 于中伟[1] 马爱增[1] 马晨雨 陈春芳 张诚 WANG Zijian;YU Zhongwei;MA Aizeng;MA Chenyu;CHEN Chunfang;ZHANG Cheng(Research Institute of Petroleum Processing, SINOPEC, Beijing 100083, China;Daqing Zhonglan Petrochemical Co. Ltd. ,CHEMCHINA, Daqing 163713, China;Yumen Oilfield Branch Refining and Chemical Plant, CNPC, Jiuquan 735000, China)

机构地区：[1]中国石化石油化工科学研究院,北京100083 [2]中国化工大庆中蓝石化有限公司,黑龙江大庆163713 [3]中国石油玉门油田分公司炼油化工总厂,甘肃酒泉735000

出　　处：《石油学报（石油加工）》2021年第5期1145-1150,共6页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：中国石油化工股份有限公司项目(ST20020-3)资助。

摘　　要：考察了轻烃移动床芳构化ZSM-5纳米级分子筛催化剂的积炭速率,研究其再生工艺条件和再生动力学。结果表明:适宜的轻烃芳构化ZSM-5催化剂再生条件为:再生温度450℃、再生气中氧体积分数1%、再生气/催化剂体积比2400;计算得出了芳构化ZSM-5催化剂表面积炭燃烧的动力学方程lnK_(c)=-3.696×10^(3)/T-3.625,其中积炭燃烧速率对氧分压的反应级数为1.049,对催化剂积炭含量的反应级数为1.060,积炭燃烧活化能为3.121×10^(4) J/mol。烧炭动力学方程的建立为开发移动床催化剂连续再生工艺打下了基础。The coke deposition rate of the catalyst was investigated in the moving bed light hydrocarbon aromatization process.The regeneration process and kinetics were studied.Results show that the optimized regeneration temperature is 400℃,oxygen volume fraction in regeneration gas is 1%and the volume ratio of regeneration gas and catalyst is 2400.The kinetic equation of coke deposition combustion on the surface of the aromatization catalyst is lnK_(c)=-3.696×10^(3)/T-3.625.The reaction order of coke deposition combustion rate to oxygen partial pressure is 1.049,the reaction order of coke content is 1.060 and the activation energy of combustion is 3.121×10^(4) J/mol.The establishment of kinetic equation of coke deposition combustion lays a foundation for the development of continuous regeneration process of moving bed aromatization catalyst.

关 键 词：轻烃 芳构化 移动床 再生 

分 类 号：TE624[石油与天然气工程—油气加工工程]