逆流连续重整催化剂烧焦表观动力学研究  

APPARENT KINETICS OF COKE COMBUSTION OF COUNTERCURRENT CONTINUOUS REFORMING CATALYST

作　　者：董晨 王杰广 张新宽 刘彤 Dong Chen;Wang Jieguang;Zhang Xinkuan;Liu Tong(SINOPEC Research Institute of Petroleum Processing Co.,Ltd.,Beijing 100083)

机构地区：[1]中石化石油化工科学研究院有限公司,北京100083

出　　处：《石油炼制与化工》2023年第12期43-47,共5页Petroleum Processing and Petrochemicals

基　　金：中国石油化工股份有限公司合同项目(121037-1)。

摘　　要：以逆流连续重整装置催化剂为研究对象,利用固定床反应器,在消除外扩散影响的条件下,系统考察了反应温度、氧分压以及碳含量等因素对催化剂烧焦速率的影响规律,并建立了幂级数形式的烧焦表观动力学方程。结果表明:烧焦速率随着反应温度、氧分压以及碳含量的增大而增大,动力学方程中氧的反应级数为0.78,碳的反应级数为0.68,表观反应活化能为9.98×10^(4) J mol。根据该方程可以准确计算不同条件下的催化剂烧焦速率,进而优化再生器的设计参数和操作条件,为逆流连续重整技术的进步奠定了理论基础。A fixed-bed reactor was used for the study of the catalyst in the countercurrent continuous reforming unit under the condition of eliminating the influence of external diffusion,and the effects of reaction temperature,oxygen partial pressure,and carbon content on the coke combustion rate of countercurrent naphtha catalytic reforming catalyst were systematically investigated.The apparent kinetic equation of coke combustion in power series form was established.The results showed that the burning rate increased with the increase of reaction temperature,oxygen partial pressure,and carbon content.The reaction order for oxygen in the kinetic equation is 0.78,the reaction order for carbon is 0.68,and the apparent reaction activation energy is 9.98×10^(4)J mol.According to the equation,the coke burning rate of catalyst under different conditions could be calculated accurately,and the design parameters and operating conditions of regenerator could be optimized.

关 键 词：连续重整 催化剂 烧焦 动力学 

分 类 号：TE624.92[石油与天然气工程—油气加工工程]