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| 一步法合成二甲醚催化剂失活的研究进展 | |
| 引用本文： | 张海鹏,李伟,肖文德.一步法合成二甲醚催化剂失活的研究进展[J].石油化工,2011,40(7):795-799. |
| 作者姓名： | 张海鹏 李伟 肖文德 |
| 作者单位： | 1. 华东理工大学化学工程联合重点实验室,上海200237;中国石油大学(华东)化学化工学院,山东东营257061 2. 华东理工大学化学工程联合重点实验室,上海,200237 3. 华东理工大学化学工程联合重点实验室,上海200237;上海交通大学化学化工学院,上海200210 |
| 摘 要： | 综述了一步法合成二甲醚催化剂的失活原因及解决方法。复合催化剂中任一组分的失活都会造成整个催化剂的失活。Cu基合成甲醇催化剂的毒物主要为S,C l,Fe,N i等,净化原料气,控制原料气中S和C l的含量,采用不锈钢设备可延缓催化剂中毒;活性组分烧结是复合催化剂失活的重要原因,通过控制反应温度、导出反应生成的水及改进催化剂制备方法可提高催化剂的稳定性;活性组分的迁移、流失、积碳等也是催化剂失活的原因。甲醇脱水催化剂的失活主要由积碳及结构破坏造成,通过改性提高催化剂的抗积碳和抗水性能可以延长催化剂的使用寿命。 |
| 关 键 词： | 一步法合成二甲醚 催化剂失活 合成气 甲醇 |
Progress in Catalyst Deactivation Study for Direct Synthesis of Dimethyl Ether |
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| Zhang Haipeng,Li Wei,Xian Wende.Progress in Catalyst Deactivation Study for Direct Synthesis of Dimethyl Ether[J].Petrochemical Technology,2011,40(7):795-799. | |
| Authors: | Zhang Haipeng Li Wei Xian Wende |
| Affiliation: | Zhang Haipeng1,2,Li Wei1,Xian Wende1,3(1.State Key Laboratory of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China,2.College of Chemistry and Chemical Engineering,Petroluem University of China(East China),Dongying Shandong 257061,3.School of Chemistry & Chemical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China) |
| Abstract: | The causes and solutions of the catalyst deactivation for the direct synthesis of dimethyl ether from syngas were reviewed.Deactivation of either component in the composite catalysts could lead to the catalyst deactivation.Microimpurities,namely S,Cl,Fe and Ni,could cause the catalyst deactivation,which could be prevented by purification of the raw gas and using stainless steel equipments.Sintering of the Cu in the catalysts was an important problem which led to the catalyst deactivation.The catalyst stabil... |
| Keywords: | direct synthesis of dimethyl ether catalyst deactivation syngas methanol |
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