Efficient production of 1,3-butadiene in the catalytic dehydration of 2,3-butanediol

被引：63

作者：

Duan, Hailing ^{[1
]}

Yamada, Yasuhiro ^{[1
]}

Sato, Satoshi ^{[1
]}

机构：

[1] Chiba Univ, Grad Sch Engn, Inage Ku, Chiba 2638522, Japan

来源：

APPLIED CATALYSIS A-GENERAL | 2015年 / 491卷

关键词：

Dehydration; 2,3-Butanediol; 1,3-Butadiene; 3-Buten-2-ol; Rare earth oxide; Sc2O3; RARE-EARTH-OXIDES; CIS-POLYBUTADIENE RUBBER; SELECTIVE DEHYDRATION; BUTADIENE FORMATION; ETHANOL; STYRENE; BIOMASS; 1,5-PENTANEDIOL; 1,4-BUTANEDIOL; POLYMERIZATION;

D O I：

10.1016/j.apcata.2014.12.006

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Vapor-phase catalytic dehydration of 2,3-butanediol (2,3-BDO) was investigated over rare earth oxide catalysts and In2O3 at around 400 degrees C. In the dehydration of 2,3-BDO over SC2O3, 1,3-butadiene was mainly produced together with butanone, 2-methyl-propanal, 2-methyl-propanol,3-buten-2-ol, and butene isomers. SC2O3 calcined at 800 degrees C showed the highest 1,3-butadiene yield of 88.3% at 411 degrees C in H-2 carrier gas flow. Since 3-buten-2-ol is produced selectively from 2,3-BDO over Sc2O3 at a low temperature of 325 degrees C, 3-buten-2-ol rather than butanone is a probable intermediate from 2,3-BDO to 1,3-butadiene. 3-Buten-2-ol is readily converted into 1,3-butadiene at temperatures lower than 411 degrees C over Sc2O3 and Al2O3. In addition, double-bed catalysts composed of an upper catalyst bed of Sc2O3 and a lower of Al2O3 successfully converted 2,3-BDO directly into 1,3-butadiene with a stable selectivity higher than 94% at 318 degrees C and 100% conversion of 2,3-BDO. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：163 / 169

页数：7

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