Pd/C modified with Sn catalyst for liquid-phase selective hydrogenation of maleic anhydride to gamma-butyrolactone

被引：19

作者：

Li, Rongrong ^{[1
,2
]}

Zhao, Jia ^{[1
]}

Han, Deman ^{[2
]}

Li, Xiaonian ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Ind Catalysis Inst, Hangzhou 310014, Zhejiang, Peoples R China

[2] Tai Zhou Univ, Sch Pharmaceut & Chem Engn, Taizhou 317000, Peoples R China

来源：

CHINESE CHEMICAL LETTERS | 2017年 / 28卷 / 06期

基金：

中国博士后科学基金;

关键词：

Bimetallic catalysts; Sn/Pd mass ratio; Maleic anhydride; Selective hydrogenation; Gamma-butyrolactone; RAY PHOTOELECTRON-SPECTROSCOPY; METAL-SUPPORT INTERACTIONS; SUCCINIC ANHYDRIDE; PALLADIUM-TIN; SUPERCRITICAL CO2; PD/AL2O3; CATALYST; ACID; NI; HYDRODECHLORINATION; TETRAHYDROFURAN;

D O I：

10.1016/j.cclet.2017.04.028

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Pd catalysts suffered from poor selectivity and stability for liquid-phase hydrogenation of maleic anhydride (MA) to gamma-butyrolactone (GBL). Thus, Pd/C catalysts modified with different Sn loadings were synthesized, and characterized by XRD, XPS, TEM and elemental mapping. The types of alloy phase and the amounts of the surface Pd-SnOx sites altered along with Sn/Pd mass ratios from 0-1.0 synthesized in the process of preparation. The maximum reaction rate was 0.57 mol-GBL/(mol-Pd min) and selectivity was 95.94% when the Sn/Pd mass ratio was 0.6. It might be attributed to the formation of Pd2Sn alloy and less amounts of Pd-SnOx sites. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.

引用

页码：1330 / 1335

页数：6

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