Rh promoted Ni over yttria-zirconia supported catalyst for hydrogen-rich syngas production through dry reforming of methane

被引：1
|
作者：
Al-Fatesh, Ahmed S. S. [1 ,6 ]
Acharya, Kenit [2 ]
Osman, Ahmed I. I. [3 ,5 ]
Fakeeha, Anish H. H. [1 ]
Ibrahim, Ahmed A. A. [1 ]
Abahussain, Abdulaziz A. M. [1 ]
Bagabas, Abdulaziz [4 ,8 ]
Abasaeed, Ahmed E. E. [1 ]
Kumar, Rawesh [2 ,7 ]
机构：
[1] King Saud Univ, Coll Engn, Chem Engn Dept, Riyadh, Saudi Arabia
[2] Indus Univ, Dept Chem, Ahmadabad, Gujarat, India
[3] Queens Univ, Sch Chem & Chem Engn, Belfast, North Ireland
[4] King Abdulaziz City Sci & Technol KACST, Riyadh, Saudi Arabia
[5] Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT9 5AG, North Ireland
[6] King Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi Arabia
[7] Indus Univ, Dept Chem, Ahmadabad 382115, Gujarat, India
[8] King Abdulaziz City Sci & Technol KACST, POB 6086, Riyadh 11442, Saudi Arabia
来源：
ENERGY SCIENCE & ENGINEERING | 2023年 / 11卷 / 09期
关键词：
cyclic reduction-oxidation-reduction; DRM; graphitic carbon; rhodium; yttria-zirconia support; SYNTHESIS GAS; CO2; CH4; ADSORPTION; BARIUM; ZRO2; MGO;
D O I：
10.1002/ese3.1520
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：
Rh-promoted YZr-supported Ni catalyst (5Ni/YZr) is investigated for DRM and characterized with X-ray diffraction, Raman, infrared spectroscopy, cyclic reduction-oxidation-reduction temperature programmed experiment, thermogravimetry, and transmission electron microscope. Over 5Ni/YZr, some active sites become inactive under the CO2 stream and limit H-2 yield to & SIM;71%. Upon 4 wt% Rh addition over 5Ni/YZr; more than one type of stable active sites (Rh and Ni) generates, moderate basic sites are enhanced, wide ranges of CO2-interacted surface species (especially bidentate CO2-adsorbed species) are grown and graphitic carbon proportion over spent catalyst declines. This resulted in 87.35% H-2 yield and 86.73% CO yield up to 420 min. 5Ni4Rh/YZr catalyst maintains & SIM;80% H-2 yield at the end of 27 h of DRM reaction.
引用
收藏
页码：3265 / 3275
页数：11
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