Influence of precursors on the catalytic activity of alumina for bio-ethanol dehydration in microchannel reactors

被引：1

作者：

Ouyang, Xilian ^{[1
,2
]}

Li, Shulian ^{[1
]}

Yue, Jun ^{[1
]}

Jiao, Fengjun ^{[1
]}

Chen, Guangwen ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

INTERNATIONAL JOURNAL OF GLOBAL WARMING | 2009年 / 1卷 / 04期

关键词：

activated alumina; precursor; bio-ethanol dehydration; microchannel reactor; global warming; SELECTIVE OXIDATION; DIETHYL-ETHER; ETHYLENE; SURFACE; GAS; ADSORPTION; CONVERSION; ENERGY; FUEL; ETA;

D O I：

10.1504/IJGW.2009.029217

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this paper, the catalytic activity of alumina for bio-ethanol dehydration was studied in a microchannel reactor. Five catalysts were prepared from precursors with different ratios of AlOOH (pseudo boehmite) and Al(OH)(3) (bayerite). The physicochemical properties of catalysts were characterised by X-Ray Diffraction (XRD) and Temperature Programmed Desorption (TPD). The influence of reaction temperature and space velocity was investigated. The results show that the catalyst prepared from precursor with AlOOH 46.3 mol% has the highest ethanol conversion and ethylene selectivity. An ethylene yield of 18.28 g/(g(cat).h) can be achieved, implying that the dehydration process can be intensified using microchannel reactors.

引用

页码：456 / 472

页数：17

共 43 条

[21] Microfabricated multiphase reactors for the direct synthesis of hydrogen peroxide from hydrogen and oxygen [J].