连续重整催化剂运行初期与末期的性能分析  

PERFORMANCE ANALYSIS OF CONTINUOUS REFORMING CATALYST AT THE BEGINNING AND END OF OPERATION

作　　者：胡久元 Hu Jiuyuan(SINOPEC Yangzi Petrochemical Co.,Ltd.,Nanjing 210048)

机构地区：[1]中国石化扬子石油化工有限公司,南京210048

出　　处：《石油炼制与化工》2023年第2期22-26,共5页Petroleum Processing and Petrochemicals

摘　　要：介绍了PS-Ⅶ型连续重整催化剂在中国石化扬子石油化工有限公司1.39 Mt/a连续重整装置上运行周期内的性能变化情况;利用透射电镜及元素分析对运行末期的催化剂结构及组成进行了分析,并使用R-sim软件对催化剂选择性与活性进行了模拟分析;基于产物分布和操作条件的变化,分析了催化剂运行的经济性。结果表明,与运行初期催化剂的标定结果相比,由于受到第一代再生技术及不可避免的Fe元素累积等因素限制,运行末期催化剂的比表面积降至149 m^(2)/g,压碎强度降至42 N/粒,催化剂活性降低4.7℃,重整装置C6+液体收率降低1.33百分点,芳烃产率降低1.25百分点,造成装置经济效益下降,催化剂达到了换剂指标。The performance change of continuous reforming catalyst PS-Ⅶin 1.39 Mt/a continuous reforming unit of SINOPEC Yangzi Petrochemical Co.,Ltd.was introduced.The structure and composition of the catalysts were analyzed by TEM and elemental analysis,and the selectivity and activity of the catalysts were simulated by R-sim software.Based on the change of product distribution and operating conditions,the economy of catalyst operation was analyzed.The results showed that the specific surface area of catalyst reduced to 149 m^(2)/g at the end of operation due to the limitation of the first generation regeneration technology and the inevitable accumulation of Fe,the crushing strength reduced to 42 N/grain,the catalyst activity reduced by 4.7℃,the yield of C6+liquid and the yield of aromatics reduced by 1.33 percentage points and 1.25 percentage points respectively in the reforming unit,and the catalyst reached the target of changing agent.

关 键 词：连续重整 催化剂 运行末期 性能分析 

分 类 号：TE624.9[石油与天然气工程—油气加工工程]