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Paper Information

Journal:   IRANIAN JOURNAL OF HYDROGEN AND FUEL CELL   2015 , Volume 2 , Number 4; Page(s) 215 To 226.
 
Paper: 

EFFECT OF K2O ON THE CATALYTIC PERFORMANCE OF NI CATALYSTS SUPPORTED ON NANOCRYSTALLINE AL2O3 IN CO2 REFORMING OF METHANE

 
 
Author(s):  ALIPOUR ZAHRA, MESHKANI FERESHTEH, REZAEI MEHRAN*
 
* INSTITUTE OF NANOSCIENCE AND NANOTECHNOLOGY, UNIVERSITY OF KASHAN, KASHAN, IRAN
 
Abstract: 

CO2 reforming of methane (CRM) over unpromoted and potassium promoted Ni/Al2O3 catalysts was studied. The catalysts were prepared by the impregnation method and characterized by X-ray diffraction (XRD), N2 adsorption (BET), temperature programmed reduction (TPR), temperature programmed oxidation (TPO) and scanning electron microscope (SEM) techniques. The obtained results showed that addition of K2O to the Ni/Al2O3 catalyst increased surface area. Also, the addition of K2O to this catalyst increased activity and decreased the amount of deposited carbon by enhancing the basic properties of the catalysts and CO2 adsorption and preventing the Boudouard reaction. In addition, the effect of Ni and potassium loadings were investigated in Ni/K2O-Al2O3 catalysts. It was observed that by increasing nickel content, the specific surface area decreased, but catalytic activity and coke formation increased. Also, catalytic tests showed that just a moderate amount of K could improve catalytic activity and decrease coke formation in the Ni/K2O-Al2O3 catalyst in dry reforming of methane.

 
Keyword(s): NICKEL CATALYST, PROMOTERS, POTASSIUM, CO2 REFORMING
 
 
References: 
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APA: Copy

ALIPOUR, Z., & MESHKANI, F., & REZAEI, M. (2015). EFFECT OF K2O ON THE CATALYTIC PERFORMANCE OF NI CATALYSTS SUPPORTED ON NANOCRYSTALLINE AL2O3 IN CO2 REFORMING OF METHANE. IRANIAN JOURNAL OF HYDROGEN AND FUEL CELL, 2(4), 215-226. https://www.sid.ir/en/journal/ViewPaper.aspx?id=569268



Vancouver: Copy

ALIPOUR ZAHRA, MESHKANI FERESHTEH, REZAEI MEHRAN. EFFECT OF K2O ON THE CATALYTIC PERFORMANCE OF NI CATALYSTS SUPPORTED ON NANOCRYSTALLINE AL2O3 IN CO2 REFORMING OF METHANE. IRANIAN JOURNAL OF HYDROGEN AND FUEL CELL. 2015 [cited 2021July24];2(4):215-226. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=569268



IEEE: Copy

ALIPOUR, Z., MESHKANI, F., REZAEI, M., 2015. EFFECT OF K2O ON THE CATALYTIC PERFORMANCE OF NI CATALYSTS SUPPORTED ON NANOCRYSTALLINE AL2O3 IN CO2 REFORMING OF METHANE. IRANIAN JOURNAL OF HYDROGEN AND FUEL CELL, [online] 2(4), pp.215-226. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=569268.



 
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