工业双戊烯催化脱氢制备对伞花烃  

Catalytic dehydrogenation of industrial dipentene to prepare p-cymene

作　　者：郑金欣 晁哲 程杰 范嘉烜 万克柔 高明明 林涛 张炳亮 李国斌 马晓云 Zheng Jinxin;Chao Zhe;Cheng Jie;Fan Jiaxuan;Wan Kerou;Gao Mingming;Lin Tao;Zhang Bingliang;Li Guobin;Ma Xiaoyun(Kaili Catalyst New Materials Co.,Ltd.,Xi’an 710201,Shaanxi,China;National and Local Joint Engineering Research Center for New Noble Metal Catalysts R&D Technology,Xi’an 710201,Shaanxi,China)

机构地区：[1]西安凯立新材料股份有限公司,陕西西安710201 [2]新型贵金属催化剂研发技术国家地方联合工程研究中心,陕西西安710201

出　　处：《工业催化》2024年第7期77-80,共4页Industrial Catalysis

摘　　要：以工业双戊烯为原料,催化脱氢制备对伞花烃,研究催化剂的制备工艺以及反应温度对产物分布的影响。结果表明,以活性炭为载体,采用甲酸预处理,再负载1%Pd活性组分得到的钯碳催化剂应用于工业双戊烯催化脱氢反应中具有较好的催化活性。在反应温度180℃,氮气流量50 mL·min^(-1)、常压、空速0.5 h^(-1)的条件下,对伞花烃收率为85.65%。反应温度影响催化剂性能和反应稳定性,当反应温度为180℃时,收率和稳定周期达到较佳结果。该研究可以为工业双戊烯的深加工提供技术支持。The catalytic dehydrogenation of industrial dipentene was used to prepare p-cymene,and the effect of catalyst preparation process and reaction temperature on product distribution were studied.The results show that the palladium carbon catalyst obtained by using activated carbon pretreated with formic acid as the carrier,and then loaded with 1%Pd as active component has good catalytic activity when applied to industrial dipentene catalytic dehydrogenation reaction.Under the conditions of reaction temperature of 180℃,nitrogen flow rate of 50 mL·min^(-1),atmospheric pressure,and airspeed of 0.5 h^(-1),the yield of p-cymene is 85.65%.The reaction temperature affects the performance and stability of the catalyst.When the reaction temperature is 180℃,the yield and stability period reach optimal results.This study can provide technical support for the deep processing of industrial dipentene.

关 键 词：精细化学工程 工业双戊烯 对伞花烃 脱氢反应 PD/C催化剂 

分 类 号：TQ426.6[化学工程] TQ221.214