Dehydrogenation of ethane to ethylene over a highly efficient Ga2O3/HZSM-5 catalyst in the presence of CO2

Dehydrogenation of Isobutane with Carbon Dioxide over SBA-15-Supported Vanadium Oxide Catalysts

“…The utilization of carbon dioxide as a mild oxidant for the selective dehydrogenation of small alkanes to their respective alkenes has gained much interest in recent years and is believed to be an attractive alternative to the traditional dehydrogenation [8][9][10][11][12][13][14][15]. Deep oxidation of the desirable dehydrogenation product to CO and CO 2 can be avoided via employing CO 2 instead of O 2 .…”

Ga2O3/HSSZ-13 for dehydrogenation of ethane: Effect of pore geometry of support

“…Cr 2 O 3 and Ga 2 O 3 based catalysts have proved more efficient than others for the dehydrogenation of light alkane in the presence of CO 2 [1][2][3][4][5][6][7][8][9]. Ga 2 O 3 -loaded ZSM-5 has been studied extensively as an excellent catalyst for aromatization of light alkane [10][11][12].…”

“…Nowadays, the catalytic conversion of ethane to ethylene has drawn intense attention because of the increasing demand for utilization of nature gas and shale gas instead of petroleum due to energy and environmental concerns. Conversion of ethane to ethylene through dehydrogenation in the presence of CO 2 is an effective way, since the addition of CO 2 can not only accelerate the dehydrogenation by consuming the H 2 via reverse water-gas shift reaction, but also slow down the deactivation by eliminating the coke via Boudouard reaction [1][2][3][4][5][6][7][8].…”

“…Ga 2 O 3 -loaded ZSM-5 has been studied extensively as an excellent catalyst for aromatization of light alkane [10][11][12]. Our previous work has shown that high Si/Al ratio HZSM-5 supported Ga 2 O 3 is active and stable in dehydrogenation of ethane and propane in the presence of CO 2 [3,13]. However, the selectivity to alkene is not high enough because of aromatization during the dehydrogenation [13].…”

Supported Ga-oxide Catalyst for Dehydrogenation of Ethane

“…For instance, Saito et al reported that 1.7 wt% Ga/SiO2 was effective for dehydrogenation of propane and demonstrated that the amount of carbonaceous deposits on the catalyst during dehydrogenation was around 1/10 in comparison with a silica-supported chromium oxide catalyst 19) . In addition, Shen et al reported that a Ga catalyst supported on a zeolite such as H-ZSM-5 was effective for dehydrogenation of ethane in the presence of CO2 20) . The catalyst had high selectivity and long lifetime with increasing the Si/Al ratio because the acidity of the catalyst decreased.…”