CARBON-DIOXIDE
; HYDROGEN-PRODUCTION
; COMPOSITE MEMBRANE
; SYNGAS PRODUCTION
; NICKEL-CATALYSTS
; SYNTHESIS GAS
; DEGRADATION
; PERFORMANCE
; POTASSIUM
WOS学科分类:
Engineering, Chemical
WOS研究方向:
Engineering
英文摘要:
Global warming is a serious problem that must be urgently addressed. Synthesis gas can be produced via the dry reforming of methane using CO2. In this study, a kaolin-supported nickel catalyst was investigated for the production of synthesis gas. In addition, the effect of doping with cesium or mixed potassium and sodium-based promoters on the desired catalyst was studied, and it was found that the promoter enhanced the conversion and stabilized the H-2/CO ratio. The catalyst containing 3% mixed potassium-sodium promoter showed excellent catalytic performance, having an initial CH4 conversion as high as 74.4% and a steady H-2/CO ratio of almost unity. The catalysts were also characterized using nitrogen adsorption-desorption isotherms, X-ray diffraction, thermogravimetric analysis, thermal programmed oxidation, and thermal programmed reduction.
King Saud Univ, Coll Engn, Chem Engn Dept, POB 11421, Riyadh, Saudi Arabia
Recommended Citation:
Ibrahim, Ahmed A.,Al-Fatesh, Ahmed S.,Khan, Wasim U.,et al. Kaolin-Supported Ni Catalysts for Dry Methane Reforming: Effect of Cs and Mixed K-Na Promoters[J]. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN,2019-01-01,52(2):232-238