Inorganic Chemicals Industry ›› 2023, Vol. 55 ›› Issue (10): 145-152.doi: 10.19964/j.issn.1006-4990.2022-0751

• Catalytic Materials • Previous Articles     Next Articles

Study on preparation of copper-based materials and its catalytic performance for hydrogenation of dimethyl succinate

WANG Peng1(), ZHAO Shanshan1, LU Yanfei2, LI Shisong2, WANG Chunlei2, SHU Chang2(), ZHANG Dongsheng1()   

  1. 1.School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
    2.CenerTech Tianjin Chemical Research and Design Institute Co. , Ltd. , Tianjin 300131, China
  • Received:2022-12-22 Online:2023-10-10 Published:2023-10-16
  • Contact: SHU Chang, ZHANG Dongsheng E-mail:690169869@qq.com;potatopumier@163.com;zds1301@hebut.edu.cn

Abstract:

At present,acetylene aldehyde method,maleic anhydride method,butadiene method and propylene oxide method are used in the industry to produce 1,4-butanediol(BDO).However,due to the high energy consumption and pollution,the use of more green biological method to produce BDO gradually shows more advantages.At present,there are few researches on the hydrogenation of dimethyl succinic acid(DMS),which can be obtained from the esterification of succinic acid platform molecule,to BDO.Three inorganic materials of copper nitrate,zinc nitrate and aluminum nitrate,were selected to prepare the copper catalyst for the hydrogenation of dimethyl succinic acid(DMS) to 1,4-butanediol(BDO) by coprecipitate method.The products were characterized by XRF,BET,H2-TPR,XRD and XPS.And the catalytic material properties were tested in order to obtain catalytic materials with good performance,providing ideas for subsequent research.The results showed that the catalytic material with copper mass fraction of 20% and zinc-aluminum molar ratio of 0.3 had good hydrogenation performance at 185 ℃,5 MPa,hydrogen-ester ratio of 150 and space velocity of 1 h-1,with DMS conversion rate of 98.6% and BDO selectivity of 87.3%.And it had good stability after 1 000 h continuous operation which showed good industrial prospect.

Key words: dimethyl succinate, copper catalyst, hydrogenation, 1,4-butanediol

CLC Number: