Effect of the Zeolite Cavity on the Mechanism of Dehydrogenation of Light Alkanes over Gallium-Containing Zeolites

2011 ◽  
Vol 115 (20) ◽  
pp. 10104-10113 ◽  
Author(s):  
Marcio Soares Pereira ◽  
Alexander Martins da Silva ◽  
Marco Antonio Chaer Nascimento
Keyword(s):  
2021 ◽  
Vol 50 (7) ◽  
pp. 4299-4358
Author(s):  
Yalan Wang ◽  
Ping Hu ◽  
Jia Yang ◽  
Yi-An Zhu ◽  
De Chen

This review describes the recent progress in computational catalysis that has addressed the C–H bond activation of light alkanes.


2021 ◽  
Vol 50 (7) ◽  
pp. 4359-4381
Author(s):  
Chunyi Li ◽  
Guowei Wang

This review summarizes recent progress in the catalysts and reactors for light alkane dehydrogenation, providing new directions for dehydrogenation technologies.


2021 ◽  
Vol 216 ◽  
pp. 106770
Author(s):  
Dongyang Liu ◽  
Liyuan Cao ◽  
Guohao Zhang ◽  
Liang Zhao ◽  
Jinsen Gao ◽  
...  

2021 ◽  
Author(s):  
Feng Luo ◽  
Li Wang ◽  
Lele Gong ◽  
Wansheng Jia ◽  
Rajamani Krishna ◽  
...  

Abstract Separation of propane from nature gas is of great importance to industry. However, in light of size-based separation, there still lacks effective method to directly separate propane from nature gas, due to the comparable physical properties for these light alkanes (C1-C4) and the middle size of propane. In this work, we found that a new Th-MOF could be an ideal solution for this issue. The Th-MOF takes UiO-66-type structure, but with the pocket sealed by six-fold imide groups; this not only precisely reduces the size of pocket to exactly match propane, but also enhances the host-guest interactions through multiple supramolecular interactions. As a result, highly selective adsorption of propane over methane, ethane, and butane was observed, implying unique middle-size separation. The actual separation was confirmed by breakthrough experiments, and it is found that both relatively smaller molecules (methane and ethane) and relatively bigger molecules (butane) break through the Th-MOF column within 10 min/g, whereas propane with middle size can maintain very long retention time up to 80 min/g, strongly suggesting middle-size separation and its superior application in direct separation of propane from nature gas. The separation mechanism, as unveiled by both theoretical calculation and comparative experiments, is due to the six-fold imide-sealed pockets that could effectively distinguish propane from other light alkanes through both size effect and host-guest interactions.


2014 ◽  
Vol 114 (20) ◽  
pp. 10613-10653 ◽  
Author(s):  
Jesper J. H. B. Sattler ◽  
Javier Ruiz-Martinez ◽  
Eduardo Santillan-Jimenez ◽  
Bert M. Weckhuysen

2014 ◽  
Vol 53 (51) ◽  
pp. 14106-14109 ◽  
Author(s):  
Lu Li ◽  
Xiaoyue Mu ◽  
Wenbo Liu ◽  
Xianghua Kong ◽  
Shizhao Fan ◽  
...  

Author(s):  
Tiziana Monti ◽  
Mirko Bacchini ◽  
Carlotta Cortelli ◽  
Fabrizio Cavani ◽  
Ferruccio Trifir√≤ ◽  
...  
Keyword(s):  

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