Direct and selective hydrogenation of CO2 to ethylene and propene by bifunctional catalysts

2017 ◽  
Vol 7 (23) ◽  
pp. 5602-5607 ◽  
Author(s):  
Jiajian Gao ◽  
Chunmiao Jia ◽  
Bin Liu

A bifunctional catalyst was designed to directly and selectively hydrogenate CO2 to ethylene and propene with a high selectivity of 80–90% in hydrocarbons by combining the synthesis of methanol and methanol-to-olefins processes.

2021 ◽  
Author(s):  
Shuai Ding ◽  
Hai-rong Zhang ◽  
Bo Li ◽  
Wenping Xu ◽  
Xuefang Chen ◽  
...  

The synthesis of γ-Valerolactone (GVL) from butyl levulinate (BL) hydrogenation over sulfonated activated carbon (SAC) supported SnRuB bifunctional catalysts was studied. These catalysts were characterized by ICP, nitrogen physisorption, XRD,...


2021 ◽  
Vol 284 ◽  
pp. 119787
Author(s):  
Renjie Liu ◽  
Denis Leshchev ◽  
Eli Stavitski ◽  
Mitchell Juneau ◽  
Jane N. Agwara ◽  
...  

2018 ◽  
Vol 243 ◽  
pp. 00002
Author(s):  
Olga Vodorezova ◽  
Pavel Musich ◽  
Natalia Karakchieva ◽  
Lothar Heinrich ◽  
Irina Kurzina

Dimethyl ether (DME) can be used as a replacement for diesel fuel in transportation. The catalytic effectiveness of bifunctional catalysts for DME one-stage synthesis from carbon monoxide and hydrogen was estimated in the paper. Bifunctional catalysts CuZnAl/HZSM-5, CuZnAlCr/HZSM-5, and CuZnAlZr/HZSM-5 were obtained by physical mixing of CuZnAl(Cr/Zr)– Ох and HZSM-5 components and were characterized by BET, X-ray diffraction, and temperatureprogrammed surface reaction methods. Based on the TPSR results, the mechanism of the interaction of methanol and DME with the surface of the bifunctional catalyst was studied. It was found that the temperature range of the greatest catalytic activity was 240–260 °С.


2020 ◽  
Vol 10 (4) ◽  
pp. 1106-1116
Author(s):  
Huanjun Wang ◽  
Xiaocheng Lan ◽  
Shiqing Wang ◽  
Babar Ali ◽  
Tiefeng Wang

Highly dispersed Pt catalysts supported on ZnSnAl mixed metal oxides showed high selectivity for 2-pentenol in selective hydrogenation of 2-pentenal.


2017 ◽  
Vol 139 (20) ◽  
pp. 6827-6830 ◽  
Author(s):  
Shuxing Bai ◽  
Qi Shao ◽  
Pengtang Wang ◽  
Qiguang Dai ◽  
Xingyi Wang ◽  
...  

2017 ◽  
Vol 140 (1) ◽  
pp. 524-524
Author(s):  
Shuxing Bai ◽  
Qi Shao ◽  
Pengtang Wang ◽  
Qiguang Dai ◽  
Xingyi Wang ◽  
...  

2007 ◽  
Vol 72 (4) ◽  
pp. 468-474 ◽  
Author(s):  
Peter T. Witte

Nitriles are converted to primary amines with high selectivity using a newly developed alumina-supported rhodium catalyst. The high selectivity is obtained without any additives, which are often used to prevent the formation of higher amines. The catalyst is active under mild conditions in various solvents, which makes it specifically suitable for use in pharmaceutical applications or for other substrates that can react with additives like strong acids or bases.


2011 ◽  
Vol 50 (9) ◽  
pp. 2162-2165 ◽  
Author(s):  
Fenglin Liao ◽  
Yaqun Huang ◽  
Junwei Ge ◽  
Weiran Zheng ◽  
Karaked Tedsree ◽  
...  

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