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

页码：3265 / 3275

页数：11

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