Preparation and characterization of Ni catalysts supported on pillared nanoporous bentonite powders for dry reforming reaction

被引：24
|
作者：
Mofrad, Bahareh Daroughegi [1 ]
Rezaei, Mehran [2 ]
Hayati-Ashtiani, Majid [1 ]
机构：
[1] Univ Kashan, Fac Engn, Chem Engn Dept, Catalyst & Adv Mat Res Lab, Kashan, Iran
[2] IUST, Sch Chem Petr & Gas Engn, Tehran, Iran
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 50期
基金：
美国国家科学基金会;
关键词：
Bentonite; Montmorillonite; Pillared bentonite; Ni catalyst; Dry reforming; NICKEL-CATALYSTS; CARBON-DIOXIDE; NI-AL2O3; CATALYSTS; CLAY CATALYSTS; COKE FORMATION; METHANE; AL; MONTMORILLONITES; ETHANOL; SYNGAS;
D O I：
10.1016/j.ijhydene.2019.08.194
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：
The Ni/pillared-bentonite catalysts with high BET area were synthesized and used in dry reforming reaction. The effects of different parameters such as calcination temperature, OH-/Al3+ ratio, temperature and time of pillaring process and the content of nickel on the textural and catalytic properties of the synthesized catalysts were studied. The results indicated that the 15 wt% Ni catalyst supported on pillared bentonite prepared under specified conditions (OH-/Al3+= 2.2, pillaring temperature of 40 degrees C and pillaring time of 3 h) possessed the highest BET area (90.80 m(2)/g). Also, this catalyst possessed higher catalytic activity and stability with lower amount of deposited carbon in comparison to other prepared catalysts in methane reforming with CO2. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：27429 / 27444
页数：16
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