Fe改性多级孔ZSM-5催化合成二苯甲烷  

STUDY ON SYNTHESIS OF DIPHENYLMETHANE CATALYZED BYFe MODIFIED MULTISTAGE POROUS ZSM-5

作　　者：谢辉英 黄晨悦 杨淄堯 温俊程 王豪 许俊强 Xie Huiying;Huang Chenyue;Yang Ziyao;Wen Juncheng;Wang Hao;Xu Junqiang(Fujian Collaborative Innovation Center for Clean Energy,Quanzhou Vocational and Technical University,Jinjiang 362269,Fujian,China)

机构地区：[1]福建省清洁能源协同创新中心,泉州职业技术大学,福建晋江362269

出　　处：《精细石油化工》2024年第3期9-12,共4页Speciality Petrochemicals

基　　金：福建省中青年教师教育科研项目(JAT210693)。

摘　　要：以碱处理铁改性的Fe-多级孔ZSM-5分子筛为催化剂,在小型烷基化反应装置上进行苯和氯化苄烷基化合成二苯甲烷的研究。考察烷基化的反应时间、反应温度、苯氯化苄摩尔比和催化剂用量对合成二苯甲烷的转化率及产率的影响。实验结果表明:在反应温度85℃,反应时间28 min,苯氯化苄摩尔比6∶1,催化剂用量为氯化苄质量的2%的条件下,氯化苄的转化率可达95.20%,二苯甲烷选择性可达85.23%。A study was conducted on the alkylation of benzene and benzyl chloride to synthesize diphenylmethane using alkaline treated iron modified Fe-hierarchical porous ZSM-5 molecular sieve as a catalyst in a small alkylation reaction unit.The effects of alkylation reaction time,reaction temperature,benzene-benzyl chloride molar ratio,and catalyst dosage on the conversion rate and product yield of diphenylmethane were investigated.The experimental results show that under the conditions of reaction temperature 85℃,reaction time 28 minutes,molar ratio of benzene to benzyl chloride 6∶1,and catalyst dosage of 2%by mass of benzyl chloride,the optimal conversion rate of benzyl chloride is 95.20%,and the selectivity of diphenylmethane reaches 85.23%.

关 键 词：多级孔ZSM-5 催化剂 二苯甲烷 

分 类 号：TQ032.41[化学工程]