Catalytic dehydrogenation of isobutane over a Ga2O3/ZnO interface: reaction routes and mechanism

2016 ◽  
Vol 6 (9) ◽  
pp. 3128-3136 ◽  
Author(s):  
Guowei Wang ◽  
Chunyi Li ◽  
Honghong Shan
Keyword(s):  
Interface Reaction ◽  
Catalytic Performance ◽  
Catalytic Dehydrogenation ◽  
Isobutane Dehydrogenation ◽  
Physical Mixtures ◽  
Reaction Routes

In this work, physical mixtures of ZnO and Ga2O3, even with a small amount of Ga2O3, were found to exhibit greatly enhanced catalytic performance for isobutane dehydrogenation compared to their individual components, namely solely ZnO or Ga2O3.

scholarly journals Catalytic Dehydrogenation of Methylcyclohexane by Pt Nanoparticles Supported on Nitrogen doped Carbon

2020 ◽  
Vol 194 ◽  
pp. 01030
Author(s):  
Jian Wang ◽  
Shiguang Fan ◽  
Xuan Xu ◽  
Huiru Yun ◽  
He Liu ◽  
...  
Keyword(s):  
Surface Area ◽  
Pt Nanoparticles ◽  
Catalytic Performance ◽  
Support Surface ◽  
Catalytic Dehydrogenation ◽  
Nitrogen Doped ◽  
Surface Areas ◽  
Transmission Electron ◽  
Methylcyclohexane Dehydrogenation ◽  
Nitrogen Doped Carbon

Pt nanoparticles supported on nitrogen doped carbon (Pt/CN) catalysts with different surface areas were obtained and characterized by transmission electron microscope （TEM） and brunner-emmet-teller （BET）. The characterized results showed that Pt nanoparticles dispersed uniformly on the support surface, and the surface area of the Pt/CN catalyst increased with the increase of annealing temperature. Subsequently, the catalytic performance of Pt/CN catalysts for methylcyclohexane dehydrogenation was studied. The activity of Pt/CN catalysts in methylcyclohexane dehydrogenation increased with the increase of the surface area, Pt/CN-1000 catalyst has the largest surface area and the highest catalytic activity, with the methylcyclohexane conversion of 99% and the TOF value of 424.78 h-1 at 180 ℃ for 150 minutes.

scholarly journals A new perspective on catalytic dehydrogenation of ethylbenzene: the influence of side-reactions on catalytic performance

2015 ◽  
Vol 5 (7) ◽  
pp. 3782-3797 ◽  
Author(s):  
Sara Gomez Sanz ◽  
Liam McMillan ◽  
James McGregor ◽  
J. Axel Zeitler ◽  
Nabil Al-Yassir ◽  
...  
Keyword(s):  
Coke Formation ◽  
Catalytic Performance ◽  
Side Reactions ◽  
Catalytic Dehydrogenation ◽  
Dehydrogenation Of Ethylbenzene ◽  
New Perspective

The dehydrogenation of ethylbenzene to styrene over CrOx/Al2O3 proceeds via a partially oxidative mechanism due to in situ formation of CO2. Coke formation also plays a key role in dictating catalytic performance.

Relationship between Surface Chemistry and Catalytic Performance of Mesoporous γ-Al2O3 Supported VOX Catalyst in Catalytic Dehydrogenation of Propane

2016 ◽  
Vol 8 (39) ◽  
pp. 25979-25990 ◽  
Author(s):  
Peng Bai ◽  
Zhipeng Ma ◽  
Tingting Li ◽  
Yupeng Tian ◽  
Zhanquan Zhang ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Catalytic Performance ◽  
Catalytic Dehydrogenation

Synthesis and Catalytic Performance of a Dual-Sites Fe–Zn Catalyst Based on Ordered Mesoporous Al2O3 for Isobutane Dehydrogenation

2019 ◽  
Vol 149 (5) ◽  
pp. 1326-1336 ◽  
Author(s):  
Ming Cheng ◽  
Huahua Zhao ◽  
Jian Yang ◽  
Jun Zhao ◽  
Liang Yan ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Isobutane Dehydrogenation ◽  
Ordered Mesoporous

Promoting Effect of Sulfur Addition on the Catalytic Performance of Ni/MgAl2O4 Catalysts for Isobutane Dehydrogenation

ACS Catalysis ◽  
2013 ◽  
Vol 3 (12) ◽  
pp. 2992-3001 ◽  
Author(s):  
Guowei Wang ◽  
Zhe Meng ◽  
Jianwei Liu ◽  
Chunyi Li ◽  
Honghong Shan
Keyword(s):  
Catalytic Performance ◽  
Promoting Effect ◽  
Isobutane Dehydrogenation ◽  
Sulfur Addition

scholarly journals Recent Advances on Gallium-Modified ZSM-5 for Conversion of Light Hydrocarbons

Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2234
Author(s):  
Zhe Feng ◽  
Xin Liu ◽  
Yu Wang ◽  
Changgong Meng
Keyword(s):  
Value Added ◽  
Catalytic Performance ◽  
Light Olefins ◽  
Catalytic Dehydrogenation ◽  
Light Alkanes ◽  
Light Alkenes ◽  
Economic Significance ◽  
Commodity Chemicals ◽  
Formation And Evolution

Light olefins are key components of modern chemical industry and are feedstocks for the production of many commodity chemicals widely used in our daily life. It would be of great economic significance to convert light alkanes, produced during the refining of crude oil or extracted during the processing of natural gas selectively to value-added products, such as light alkenes, aromatic hydrocarbons, etc., through catalytic dehydrogenation. Among various catalysts developed, Ga-modified ZSM-5-based catalysts exhibit superior catalytic performance and stability in dehydrogenation of light alkanes. In this mini review, we summarize the progress on synthesis and application of Ga-modified ZSM-5 as catalysts in dehydrogenation of light alkanes to olefins, and the dehydroaromatization to aromatics in the past two decades, as well as the discussions on in-situ formation and evolution of reactive Ga species as catalytic centers and the reaction mechanisms.

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