Platinum reforming catalysts based on Zr-modified Al2O3 as support

2020 ◽  
Author(s):  
V. Yu. Tregubenko ◽  
A. S. Belyi
Keyword(s):  
Reforming Catalysts

Elemental Distribution in Pt-Re:Al2O3 Naphtha Reforming Catalysts

1980 ◽  
Vol 38 ◽  
pp. 200-201
Author(s):  
R. L. Freed ◽  
M. J. Kelley
Keyword(s):  
Bimetallic Catalyst ◽  
Supported Catalysts ◽  
Coke Formation ◽  
Materials Characterization ◽  
Metal Catalyst ◽  
Elemental Distribution ◽  
Exact Nature ◽  
Naphtha Reforming ◽  
Reforming Catalysts ◽  
Commercial Introduction

The commercial introduction of Pt-Re supported catalysts to replace Pt alone on Al2O3 has brought improvements to naphtha reforming. The bimetallic catalyst can be operated continuously under conditions which lead to deactivation of the single metal catalyst by coke formation. Much disagreement still exists as to the exact nature of the bimetallic catalyst at a microscopic level and how it functions in the process so successfully. The overall purpose of this study was to develop the materials characterization tools necessary to study supported catalysts. Specifically with the Pt-Re:Al2O3 catalyst, we sought to elucidate the elemental distribution on the catalyst.

scholarly journals Steam Reforming of Chloroform-Ethyl Acetate Mixture to Syngas over Ni-Cu Based Catalysts

Catalysts ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 826
Author(s):  
Qiong Wu ◽  
Chenghua Xu ◽  
Yuhao Zheng ◽  
Jie Liu ◽  
Zhiyong Deng ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Steam Reforming ◽  
Synergetic Effect ◽  
Mixed Oxide Catalysts ◽  
Reforming Catalysts ◽  
Acidic Sites ◽  
Chlorine Poisoning ◽  
Catalytic Stability ◽  
Nickel Species ◽  
Chloride Salts

NiCuMoLaAl mixed oxide catalysts are prepared and applied in the steam reforming of chloroform-ethyl acetate (CHCl3-EA) mixture to syngas in the present work. The pre-introduction of Cl- ions using chloride salts as modifiers aims to improve the chlorine poisoning resistance. Catalytic tests show that KCl modification is obviously advantageous to increase the catalytic life. The destruction of catalyst structure induced by in situ produced HCl and carbon deposits that occurred on acidic sites are two key points for deactivation of reforming catalysts. The presence of Cl− ions gives rise to the formation of an Ni-Cu alloy, which exhibits a synergetic effect on catalyzing reforming along with metallic Ni crystals formed from excess nickel species, and giving an excellent catalytic stability. Less CHCl3 and more steam can also increase the catalytic stable time of KCl-modified NiCuMoLaAl reforming catalyst.

Catalytic activity of Pt-Re-Pb/Al2O3 naphtha reforming catalysts

2011 ◽  
Vol 86 (9) ◽  
pp. 1198-1204 ◽  
Author(s):  
María A. Sánchez ◽  
Vanina A. Mazzieri ◽  
Javier M. Grau ◽  
Juan C. Yori ◽  
Carlos L. Pieck
Keyword(s):  
Catalytic Activity ◽  
Naphtha Reforming ◽  
Reforming Catalysts

Improving the sintering resistance of Ni/Al 2 O 3 steam-reforming catalysts by promotion with noble metals

2015 ◽  
Vol 498 ◽  
pp. 117-125 ◽  
Author(s):  
Fernando Morales-Cano ◽  
Lars Fahl Lundegaard ◽  
Ramchandra R. Tiruvalam ◽  
Hanne Falsig ◽  
Martin Skov Skjøth-Rasmussen
Keyword(s):  
Steam Reforming ◽  
Noble Metals ◽  
Reforming Catalysts ◽  
Sintering Resistance ◽  
Steam Reforming Catalysts

State of platinum in Pt/γ-Al2O3(Cl) reforming catalysts

1994 ◽  
Vol 53 (1) ◽  
pp. 161-167 ◽  
Author(s):  
M. D. Smolikov ◽  
A. S. Belyi ◽  
D. I. Kiryanov ◽  
V. Yu. Borovkov ◽  
A. V. Zaitsev ◽  
...  
Keyword(s):  
Reforming Catalysts

Influence of Time and Temperature on the Regeneration of PtReIn/Al2O3 Naphtha Reforming Catalysts

2014 ◽  
Vol 144 (7) ◽  
pp. 1178-1187 ◽  
Author(s):  
María A. Vicerich ◽  
Marcelo Oportus ◽  
Viviana M. Benitez ◽  
Patricio Reyes ◽  
Carlos L. Pieck
Keyword(s):  
Naphtha Reforming ◽  
Reforming Catalysts

Influence of the swelling agents of siliceous mesocellular foams on the performances of Ni-based methane dry reforming catalysts

2018 ◽  
Vol 43 (36) ◽  
pp. 17205-17215 ◽  
Author(s):  
Oscar Daoura ◽  
Sarah Daher ◽  
Marie-Nour Kaydouh ◽  
Nissrine El Hassan ◽  
Pascale Massiani ◽  
...  
Keyword(s):  
Dry Reforming ◽  
Methane Dry Reforming ◽  
Reforming Catalysts
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