Aseries of ZnO-modified cobaltous ion exchanged ZSM-5 catalysts is prepared using incipient wetness impregnation and characterized by X-ray diffraction (XRD), N-2 adsorption, transmission electron microscopy (TEM), UV-Vis diffuse reflectance spectroscopy (DR UV-Vis), X-ray photoelectron spectroscopy (XPS), pyridine-adsorbed Fourier transform infrared (Py-IR) and Raman. Their catalytic performance towards CO2-assisted dehydrogenation of ethane to ethylene has been evaluated. The addition of ZnO onto CoZSM-5 obviously improved the yield of ethylene as well as the conversion of CO2. The promoting effect is attributed to the good activity of ZnO for the reverse water gas shift (RWGS) reaction, which enhances the coupling between RWGS and ethane dehydrogenation.
机构:
Tsinghua Univ, Dept Chem Engn, 30 Shuangqing Rd, Beijing 100084, Peoples R China
Brookhaven Natl Lab, Div Chem, 55 Lewis Rd, Upton, NY 11973 USATsinghua Univ, Dept Chem Engn, 30 Shuangqing Rd, Beijing 100084, Peoples R China
Yan, Binhang
Yao, Siyu
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Brookhaven Natl Lab, Div Chem, 55 Lewis Rd, Upton, NY 11973 USATsinghua Univ, Dept Chem Engn, 30 Shuangqing Rd, Beijing 100084, Peoples R China
Yao, Siyu
Chen, Jingguang G.
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Brookhaven Natl Lab, Div Chem, 55 Lewis Rd, Upton, NY 11973 USA
Columbia Univ, Dept Chem Engn, 500 W 120th St, New York, NY 10027 USATsinghua Univ, Dept Chem Engn, 30 Shuangqing Rd, Beijing 100084, Peoples R China
机构:
Brookhaven Natl Lab, Chem Div, Upton, NY 11973 USA
Columbia Univ, Dept Chem Engn, New York, NY 10027 USABrookhaven Natl Lab, Chem Div, Upton, NY 11973 USA
Xie, Zhenhua
Chen, Jingguang G.
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Brookhaven Natl Lab, Chem Div, Upton, NY 11973 USA
Columbia Univ, Dept Chem Engn, New York, NY 10027 USABrookhaven Natl Lab, Chem Div, Upton, NY 11973 USA
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Cent South Univ, Hunan Key Lab Mineral Mat & Applicat, Changsha 410083, Peoples R ChinaCent South Univ, Hunan Key Lab Mineral Mat & Applicat, Changsha 410083, Peoples R China
Miao, Chao
Chen, Shumei
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Cent South Univ, Hunan Key Lab Mineral Mat & Applicat, Changsha 410083, Peoples R ChinaCent South Univ, Hunan Key Lab Mineral Mat & Applicat, Changsha 410083, Peoples R China
Chen, Shumei
Liang, Lixing
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Cent South Univ, Hunan Key Lab Mineral Mat & Applicat, Changsha 410083, Peoples R ChinaCent South Univ, Hunan Key Lab Mineral Mat & Applicat, Changsha 410083, Peoples R China
Liang, Lixing
Shang, Kaixuan
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Cent South Univ, Hunan Key Lab Mineral Mat & Applicat, Changsha 410083, Peoples R ChinaCent South Univ, Hunan Key Lab Mineral Mat & Applicat, Changsha 410083, Peoples R China