Strontium-promoted Ni/ZrO2-Al2O3 catalysts for dry reforming of methane

被引：6
作者：
Al-Fatesh, Ahmed S. [1 ,5 ]
Ibrahim, Ahmed A. [1 ]
Osman, Ahmed I. [2 ,6 ]
Abasaeed, Ahmed E. [1 ]
Alotibi, Mohammed F. [3 ,7 ]
Alfatesh, Sadeq A. [1 ]
Rooney, David W. [2 ]
Fakeeha, Anis H. [1 ]
Yin, Chun-Yang [4 ,8 ]
机构：
[1] King Saud Univ, Coll Engn, Chem Engn Dept, Riyadh, Saudi Arabia
[2] Queens Univ Belfast, Sch Chem & Chem Engn, Belfast, North Ireland
[3] King Abdulaziz City Sci & Technol KACST, Inst Refining & Petrochem Technol, Riyadh, Saudi Arabia
[4] Newcastle Univ Singapore, Singapore, Singapore
[5] King Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi Arabia
[6] Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT9 5AG, North Ireland
[7] King Abdulaziz City Sci & Technol KACST, Inst Refining & Petrochem Technol, POB 6086, Riyadh 11442, Saudi Arabia
[8] Newcastle Univ Singapore, Ngee Ann Polytech, 537 Clementi Rd 06-01,SIT Bldg, Singapore 599493, Singapore
来源：
ENERGY SCIENCE & ENGINEERING | 2023年 / 11卷 / 10期
关键词：
Al2O3; hydrogen fuel; methane dry reforming; Ni-based catalyst; Sr promoter; Zr2O3; SYNGAS PRODUCTION; CARBON DEPOSITION; DESIGN; CEO2;
D O I：
10.1002/ese3.1554
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Dry reforming of methane (DRM) is an established process that utilizes CH4 and CO2 to produce syngas, which is subsequently used to produce liquid fuel. Developing an optimized catalyst with favorable physicochemical properties is essential to enhance the effectiveness of the DRM process. In this study, we report novel findings on Ni/ZrO2 + Al2O3 catalyst performance promoted with strontium (Sr) for DRM reaction. The characteristics of fresh and spent catalysts were evaluated via a suite of analytical characterization techniques, including physisorption analysis, temperature-programmed reduction, transmission electron microscopy, X-ray diffractometry, Raman spectroscopy, temperature-programmed desorption, temperature-programmed oxidation, and thermogravimetric analysis before actual DRM performance analysis. The integration of Sr essentially enhanced the basicity, imparted CO2 adsorption stability, and improved the reducibility of the catalyst. An optimal concentration of 3.0 wt% Sr promoted on the catalyst afforded the highest CH4 and CO2 conversions. The work presented in this contribution affords an understanding of optimum Sr loading and provides insights into the synergistic role of Sr on catalytic performances as applied to the DRM process.
引用
收藏
页码：3780 / 3789
页数：10
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