对叔丁基苯酚选择加氢催化剂的制备与性能评价  

Preparation and performance evaluation of selective hydrogenation catalyst for 4-tert butylphenol

作　　者：贺友 田春雨 迟姚玲[1] 牛彤 尚永幸 张谦温[1] HE You;TIAN Chunyu;CHI Yaoing;NIU Tong;SHANG Yongxing;ZHANG Qianwen(Beijing Key Laboratory of Fuels Cleaning andAdvanced Catalytic Emission Reduction Technology,College of New Material and Chemical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China)

机构地区：[1]北京石油化工学院新材料与化工学院燃料清洁化及高效催化减排技术北京市重点实验室,北京102617

出　　处：《石油化工》2023年第12期1643-1648,共6页Petrochemical Technology

摘　　要：以氢氧化铝为前体制备了Al_(2)O_(3)载体,以MgO为结构助剂、Ni为活性组分制备了催化剂;采用XRD、N_(2)吸附-脱附、H_(2)-TPR、压汞法对催化剂进行了表征;以对叔丁基苯酚为原料、异丙醇为溶剂,在微型固定床反应器上对催化剂进行评价,考察了Ni负载量、反应温度、压力、液时空速对对叔丁基苯酚选择加氢反应的影响,并考察了催化剂的稳定性。实验结果表明,Ni负载量为30%(w)时,催化剂的选择加氢性能最佳;最佳反应条件为:反应温度160℃、液时空速2.5 h^(-1)、反应压力2 MPa,在此条件下,对叔丁基苯酚转化率可达到96.39%、对叔丁基环己醇的选择性可达到95.68%。在连续反应300 h的过程中,催化剂的稳定性较好。Al_(2)O_(3) support was prepared using aluminum hydroxide as precursor and catalyst was prepared using MgO as structural promoter and Ni as active component.The catalyst was characterized by XRD,N_(2) adsorption-desorption,H_(2)-TPR,and mercury intrusion methods,and evaluated using 4-tert-butylphenol as raw material and isopropanol as solvent in afixed bed reactor.The effects of Ni loading,reaction temperature,reaction pressure and LHSV on the selective hydrogenation of 4-tert-butylphenol were investigated,and the stability of the catalyst was also investigated.The experimental results show that the hydrogenation performance of the catalyst is the best when Ni loading is 30%(w).The optimal reaction conditions are obtained as follows:reaction temperature 160℃,LHSV 2.5 h^(-1),and reaction pressure 2 MPa.Under the conditions,the conversion of 4-tert-butylphenol can reach 96.39%,and the selectivity to 4-tert-butylcyclohexanol can reach 95.68%.In the process of continuous reaction for 300 h,the stability of the catalyst is good.

关 键 词：NI基催化剂 Al_(2)O_(3)载体 对叔丁基苯酚 对叔丁基环己醇 选择加氢 

分 类 号：TQ215[化学工程—有机化工]