| 二甲醚羰基化催化剂的烧炭再生 |
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| 引用本文： | 刘亚华,李扬,王科,叶秋云,刘芃. 二甲醚羰基化催化剂的烧炭再生[J]. 化工学报, 2017, 68(10): 3816-3822. DOI: 10.11949/j.issn.0438-1157.20170489 |
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| 作者姓名： | 刘亚华 李扬 王科 叶秋云 刘芃 |
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| 作者单位： | 西南化工研究设计院有限公司, 国家碳一化学工程技术研究中心, 工业排放气综合利用国家重点实验室, 四川 成都 610225 |
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| 摘 要： | 以水热合成的H-MOR分子筛催化剂，通过对二甲醚羰基化反应失活后催化剂进行再生，考察了不同再生气体、再生温度、O2体积分数、烧炭升温速率等条件，烧炭后催化剂上二甲醚羰基化活性性能。TPO表征结果表明：反应后H-MOR分子筛上有两种不同性质的积炭。积炭催化剂在3%（体积） O2/N2气氛中，从室温以2℃·min-1升温至320℃恒温一段时间，然后以相同速率升温至550℃进行烧炭，再生催化剂活性几乎完全恢复。NH3-TPD和BET表征结果表明，再生催化剂活性得以恢复是因为优化了烧炭方案，分子筛表面积炭能够被烧除干净同时分子筛孔道不被破坏。
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| 关 键 词： | 分子筛 催化剂 二甲醚 羰基化 失活 再生 |
| 收稿时间： | 2017-04-27 |
| 修稿时间： | 2017-08-23 |
Regeneration of zeolite catalyst for dimethyl ether carbonylation |
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| LIU Yahua,LI Yang,WANG Ke,YE Qiuyun,LIU Peng. Regeneration of zeolite catalyst for dimethyl ether carbonylation[J]. Journal of Chemical Industry and Engineering(China), 2017, 68(10): 3816-3822. DOI: 10.11949/j.issn.0438-1157.20170489 |
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| Authors: | LIU Yahua LI Yang WANG Ke YE Qiuyun LIU Peng |
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| Affiliation: | Southwest Research & Design Institute of Chemical Industry Co., Ltd., National C1 Chemical Engineering and Technology Research Center, State Key Laboratory of Industrial Vent Gas Reuse, Chengdu 610225, Sichuan, China |
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| Abstract: | The H-MOR zeolite catalysts were prepared by hydrothermal synthesis.An inactivated catalyst which was used in dimthyl ether carbonylaiton was regenerated.The effects of gas,coke-burning temperature,O2 volume fraction and heating rate on the coke-burning process were investigated.The results of TPO and XRD analysis showed that there was different property coke on the inactivated catalyst.In the optimum conditions for the coke-burning of the inactivated catalyst,temperature 550℃,heating rate of 2℃·min-1 and O2 volume fraction of 3%,the catalyst activity was almost completely restored.The fresh and regenerated catalysts were characterized by means of NH3-TPD and N2 adsorption-desorption.The results showed that the coke was removed cleanly and channels were protected in the optimum condition. |
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| Keywords: | zeolite catalyst dimethyl ether carbonylation deactivation regeneration |
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