工业渣油加氢装置运转后催化剂失活研究  

Study on deactivation of industrial spent catalysts for residue hydrotreating

作　　者：崔瑞利 牛贵峰 张涛[1] 姚远 赵愉生 Cui Ruili;Niu Guifeng;Zhang Tao;Yao Yuan;Zhao Yusheng(CNPC Petrochemical Research Institute,Beijing 102206,China;PetroChina Dalian Petrochemical Company,Dalian 116031,Liaoning,China)

机构地区：[1]中国石油石油化工研究院,北京102206 [2]中国石油大连石化公司,辽宁大连116031

出　　处：《工业催化》2022年第3期62-65,共4页Industrial Catalysis

摘　　要：采用ICP、元素分析、BET等多种技术手段,对工业渣油加氢装置运转后催化剂进行研究。研究结果表明,由于金属沉积和积炭生成,各催化剂堆积密度有不同程度的增加,孔容有不同程度减少,沿着反应物流方向,催化剂孔容损失率先降低后增加;金属Ni、V沉积量沿着反应物流方向逐渐减少,说明脱金属剂对原料油中Ni、V的脱除起到了关键作用;沿着反应物流方向催化剂上积炭量先是减少,然后再逐渐增多,其中脱残炭剂上积炭量最大。Spent catalysts from a residue hydrogenation unit were analyzed by ICP,elemental analysis and BET method.Bulk density of the catalysts increases and pore volume decreases to varying extent due to metal and carbon deposition.Pore volume loss of the catalysts firstly decreases and then increases along direction of the reaction flow.Deposition of metal Ni and V decreases gradually along direction of the reaction flow,indicating that the demetallization catalyst plays a key role in removal of Ni and V from the feed oil.Carbon deposition on the catalysts firstly decreases and then gradually increases along direction of the reaction flow,with the largest deposition of carbon observed on the residual carbon removal catalys.

关 键 词：石油化学工程 渣油加氢催化剂 失活 金属沉积 积炭 

分 类 号：TE624.93[石油与天然气工程—油气加工工程] TQ426.95[化学工程]