| Li~＋／MgO上乙烷氧化脱氢制乙烯的影响因素 |
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| 引用本文： | 蔡炳新,郑小明.Li~＋／MgO上乙烷氧化脱氢制乙烯的影响因素[J].石油化工,1995(11). |
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| 作者姓名： | 蔡炳新 郑小明 |
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| 作者单位： | 湖南大学化学化工系，浙江杭州大学化学系 |
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| 摘 要： | 采用Ｌｉ￣＋／ＭｇＯ催化剂，研究了Ｌｉ含量、反应温度、原料气组成、活化方式、空间速度等对乙烷氧化脱氢制乙烯反应的影响。考察了在０和２ｍｍｏｌＬｉ￣＋／ｍｏｌＭｇＯ两催化剂上各影响因素引起的差异。发现不同Ｌｉ含量催化剂的表面碱强度与催化剂活性和选择性之间并不都是顺变关系。在压力１０１．３ｋＰａ、温度７１０℃、反应时间７．５８×１０￣（１０）ｈ、原料气配比（Ｃ＿２Ｈ＿６／Ｏ＿２）＝４．７、催化剂组成２ｍｍｏｌＬｉ￣＋／ｍｏｌＭｇＯ的条件下乙烯选择性可达７４％。
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| 关 键 词： | 乙烷，氧化，碱强度 |
Study of Factors Affecting Oxydehydrogenation of Ethane to Ethene on Li￣+/MgO Catalysts |
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| Cai Bingxin.Study of Factors Affecting Oxydehydrogenation of Ethane to Ethene on Li￣+/MgO Catalysts[J].Petrochemical Technology,1995(11). |
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| Authors: | Cai Bingxin |
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| Abstract: | We studied the effects of lithium content,temperature, feed composition,activation approachand space velocity on oxydehydrogenation of ethane to ethane over Li￣+/MgO catalyst.The differ-ence in catalyst performance caused by a number of factors are investigated.The ralationbetween basic intensity of catalyst surface and C_2H_4 selectivity is also found.The selectivity ofethane formation is 74% under the following conditions:pressure, 101.3kPa;reaction temperature,983K;reaction time,7.58 × 10￣(-5)h;C_2H_6/O_2 ratio in feed gas,4. 7;catalyst composition,2mmol Li￣+/mol MgO. |
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| Keywords: | ethane oxydehydrogenation basic intensity |
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