柴油加氢废催化剂再生后梯级应用于渣油加氢脱硫反应的研究  

STUDY ON REGENERATION OF SPENT DIESEL HYDROGENATION CATALYST AND ITS APPLICATION IN RESIDUE HYDRODESULFURIZATION

作　　者：王振 杨清河 胡大为 李会峰 刘清河 邓中活 Wang Zhen;Yang Qinghe;Hu Dawei;Li Huifeng;Liu Qinghe;Deng Zhonghuo(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5期36-41,共6页Petroleum Processing and Petrochemicals

基　　金：中国石油化工股份有限公司合同项目(123017)。

摘　　要：考察了不同再生方法对柴油加氢废催化剂物化性质及其渣油加氢脱硫活性的影响。首先,对柴油加氢废催化剂进行常规再生处理,再生后催化剂孔道得到疏通,聚集态活性金属重新分散,但梯级应用于渣油加氢脱硫反应的活性明显低于标准剂。其次,分别从扩孔和强化活性金属-载体相互作用的角度对催化剂进行改性处理,扩孔后催化剂中聚集态低活性金属被脱除,催化剂孔道结构得到进一步优化,活性金属利用率提高;强化活性金属-载体相互作用后,催化剂的渣油加氢脱硫性能明显提升。最终,耦合以上两种改性方法,得到优化后的再生催化剂,将其梯级应用于渣油加氢脱硫反应的活性接近标准剂水平。The effects of different regeneration methods on physicochemical properties of spent diesel hydrogenation catalyst and its residue hydrodesulfurization activity were investigated.Firstly,the spent catalyst was regenerated by conventional method,the pores of the catalyst were unblocked,and the aggregated active metals were redispersed,but the activity of the catalyst used in residue hydrodesulfurization was significantly lower than that of the standard catalyst.Secondly,the catalyst was modified from the perspective of pore expansion and strengthening the metal-support interaction.After the pore was expanded,the aggregated low active metals in the catalyst were removed,the pore structure of the catalyst was further optimized,and the utilization rate of active metals was improved.The residue hydrodesulfurization performance of the catalyst was significantly improved after strengthening the MSI.Finally,coupling the above two modification methods,the optimized catalyst was obtained,and the activity of the catalyst used in residue hydrodesulfurization was close to the level of the standard catalyst.

关 键 词：加氢废催化剂 再生 梯级应用 渣油加氢脱硫 

分 类 号：TE624.9[石油与天然气工程—油气加工工程]