| Cr/CeO2体系及其对乙烷脱氢反应催化性能的研究 |
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| 引用本文： | 葛 欣,孙 清,沈俭一.Cr/CeO2体系及其对乙烷脱氢反应催化性能的研究[J].无机化学学报,2004,20(8):987-990. |
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| 作者姓名： | 葛 欣 孙 清 沈俭一 |
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| 作者单位： | 南京大学化学化工学院,南京,210093 |
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| 基金项目： | 国家科技部973项目(No.G1999022408)，国家自然科学基金项目(No.20233040)，南京大学现代分析中心测试基金资助项目。 |
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| 摘 要： | The dehydrogenation reaction of ethane over Cr/CeO2 catalysts in presence of CO2 was studied with fixed-bed micro-reactor. The Cr/CeO2 catalysts of different Cr loading have been synthesized using impregnation techniques. The Cr/CeO2 system has already been found to be active and selective in the reaction at around 740 ℃. The function of carbon dioxide is to remove coke and hydrogen to accelerate dehydrogenation of ethane. The results of catalysts characterizations indicated that Cr3+ and Cr6+ occurred on the surface of the catalysts. The 1.2 mmol Cr/100m2 CeO2 catalyst sample with a monolayer dispersion of Cr on CeO2 support showed a stronger surface acidity and a maximum yield of ethylene of about 35.5% at 36.6% conversion of ethane.
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| 关 键 词： | Cr/CeO2催化剂 乙烷脱氢 二氧化碳 |
| 修稿时间： | 2004年3月10日 |
A Study on Cr/CeO2 Catalysts and Their Catalytic Performance for Dehydrogenation of Ethane |
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| GE Xin,SUN Qing and SHEN Jian-Yi.A Study on Cr/CeO2 Catalysts and Their Catalytic Performance for Dehydrogenation of Ethane[J].Chinese Journal of Inorganic Chemistry,2004,20(8):987-990. |
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| Authors: | GE Xin SUN Qing and SHEN Jian-Yi |
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| Institution: | School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093 and School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093 |
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| Abstract: | |
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| Keywords: | ethane dehydrogenation Cr/CeO2 catalysts CO2 |
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