|
|
|
| Study and optimization of regeneration of catalyst for selective hydrogenation of benzene to cyclohexene |
| Zhang Naiwen |
| Tangshan Zhonghao Chemical Corporation Ltd. , Tangshan 063611, China |
|
|
|
|
Abstract With the progress of the selective hydrogenation of benzene, the catalyst gradually aging, and it is necessary to continuously regenerate the benzene selective hydrogenation catalyst. Gas chromatograph, gravimetric method and other analytical methods were used to analyze the factors affecting the selective hydrogenation of benzene were analyzed from the aspects of degreasing, oxidation treatment, and boiling treatment during the regeneration of benzene selective hydrogenation catalyst. After optimizing the catalyst regeneration process, the hydrogenation regeneration system cycle and the process of preparing new catalysts, the continuous long-period operation of the catalyst regeneration system is ensured, the loss of the hydrogenation catalyst is reduced. The catalyst consumption decreased by 10.8%, the yield of cyclohexene increased by 2.18%, and the hydrogenation effect was significantly improved.
|
|
|
|
|
|
| [ 1 ] 孙进超，胡明圆，田 晖. 环己烯水合生成环己醇过程研究[ J ]. 当代化工研究，2018，36（ 12 ）：111 - 113.
[ 2 ] 张 乐，杨 莉，刘 毅，等. 环己醇生产装置的热能优化改造[ J ]. 河南化工，2018，35（ 8 ）：39 - 40.
[ 3 ] 姜继锁，梁 巍，李国庆. 硫化物对苯部分加氢催化剂的影响[ J ]. 河南化工，2001（ 8 ）：8 - 10.
[ 4 ] 董 森，房承宣，王亚涛. 苯选择加氢制环己烯催化剂研究进展[ J ]. 化工进展，2011，30（ 7 ）：1 473 - 1 477.
[ 5 ] 孙海杰，陈秀丽，黄振旭. NaOH浓度对苯选择加氢制环己烯Ru-Zn催化剂性能的影响[ J ]. 化工学报，2016，67（ 4 ）：46 - 48.
[ 6 ] ZHOU Gongbing, TAN Xiaohe, YANG Pei, et al. Structural and Catalytic Properties of Alkaline Post-Treated Ru/ZrO2 Catalysts for Partial Hydrogenation of Benzene to Cyclohexene [ J ]. ChemCatChem, 2013( 5 ): 2 425 - 2 435.
[ 7 ] SUN Haijie, WANG Hnongxia, JIANG Houbin, et al. Effect of (Zn(OH)2)3(ZnSO4)(H2O)5 on the performance of Ru-Zn catalyst for benzene selective hydrogenation to cyclohexene[ J ]. Applied Catalysis A: General, 2013, 450(Complete): 160 - 168.
[ 8 ] Struijk J, Moene R, Kamp T V D, et al. Partial liquid-phase hydr-
ogenation of benzene to cyclohexene over ruthenium catalysts in the presence of an aqueous salt solution[ J ]. Applied Catalysis A: General, 1992, 89( 1 ): 77 - 102.
[ 9 ] 吴济民，杨炎锋，陈聚良. 苯部分加氢催化剂失活原因的研究[ J ]. 化工进展，2003，22（ 3 ）：295 - 297.
[ 10 ] 邹 容. 苯酚及苯选择加氢反应的研究[ D ].长沙：湖南师范
大学，2016. |
|
|
|
