| 原料气中乙烷含量对Cr/MSU-1催化剂上CO_2氧化丙烷脱氢反应的影响 |
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| 引用本文： | 张钊,李会泉,柳海涛,郭奋,黄青则. 原料气中乙烷含量对Cr/MSU-1催化剂上CO_2氧化丙烷脱氢反应的影响[J]. 石油化工, 2011, 40(2): 151 |
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| 作者姓名： | 张钊 李会泉 柳海涛 郭奋 黄青则 |
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| 作者单位： | 1. 北京化工大学,化学工程学院,北京,100029
2. 中国科学院,过程工程研究所,绿色过程工程重点实验室,北京,100190 |
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| 基金项目： | 中石油科技风险创新研究项目，国家自然科学青年基金项目，中国科学院知识创新方向性项目课题 |
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| 摘 要： | 研究了原料气中乙烷含量对Cr/MSU-1催化剂上CO_2氧化丙烷脱氢反应的影响,并考察了反应温度和空速的影响。保持总烷烃与CO_2的体积比为1:3,当原料气总空速及烷烃总量恒定时,提高乙烷的含量对丙烷转化率影响不大,但烯烃选择性先升高后降低;当原料气总空速及丙烷含量恒定时,加入乙烷降低了丙烷转化率,提高了丙烯的选择性及收率;随反应温度的升高,丙烷及总烷烃的转化率增大,丙烯及总烯烃的选择性减小,其变化规律与单一丙烷的脱氢过程一致;提高空速丙烷的转化率降低,烯烃的选择性增加。在最佳反应条件即反应温度650℃、丙烷与乙烷的体积比3:2、空速8 400 mL/(h·g)下,总烷烃转化率为50.0%,总烯烃选择性为92.2%,丙烯选择性为83.1%。
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| 关 键 词： | 乙烷 丙烷 丙烯 二氧化碳 氧化脱氢 Cr/MSU-1催化剂 |
Effect of Ethane Content in Feed Gas on CO2 Oxidative Dehydrogenation of Propane over Cr/MSU-1 Catalyst |
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| Zhang Zhao,Li Huiquan,Liu Haitao,Guo Fen,Huang Qingze. Effect of Ethane Content in Feed Gas on CO2 Oxidative Dehydrogenation of Propane over Cr/MSU-1 Catalyst[J]. Petrochemical Technology, 2011, 40(2): 151 |
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| Authors: | Zhang Zhao Li Huiquan Liu Haitao Guo Fen Huang Qingze |
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| Affiliation: | Zhang Zhao~1,Li Huiquan~2,Liu Haitao~2,Guo Fen~1,Huang Qingze~2 (1.College of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029,China,2.Key Laboratory for Green Process and Engineering,Institute of Process and Engineering,Chinese Academy of Sciences,Beijing 100190,China) |
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| Abstract: | Oxidative dehydrogenation of propane with CO_2 over Cr/MSU-1 catalyst was investigated.Effects of ethane content in the feed gas,space velocity and reaction temperature on the catalyst activity in the oxidative dehydrogenation were studied.When V(C_nH_(2n+2)):V(CO_2) was 1:3,and the total space velocity and the alkane amount were constant,effect of ethane addition on the propane conversion was not significant,but olefin selectivity first rose and then lowered with increase of the ethane content.When the tot... |
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| Keywords: | Cr/MSU-1 |
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