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北京石油化工学院2026年研究生招生接收调剂公告
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duoduo9331

铜虫 (初入文坛)

[交流] MTO反应中催化剂的反应周期是多长?

请教各位高人:MTO反应中催化剂的反应周期是多长?
[search]MTO[/search]
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zhutuetit

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Please be more specific


buffaloli(金币+1,VIP+0):多谢提示!
What do you mean? You want to know the reaction stability at the fixed bed reactor in lab or the recycled catalyst life at the fludized reactor in industry? Usually, it is dependent on your catalyst type, preparation method, pretreatment condition, reaction temperature, feed rate etc., it varies from hours to days.
2楼2008-08-04 10:10:36
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duoduo9331

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谢谢你的贴子,不好意思我没有说清楚,我指的是固定床,我看文献很少涉及反应时间,包括催化剂SAPO系列和ZSM系列,你了解吗?谢谢
3楼2008-08-04 10:53:08
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duoduo9331

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是实验室的固定床
4楼2008-08-04 10:54:03
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zhutuetit

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★ ★
buffaloli(金币+2,VIP+0):QQQ!
Usually, for SAPO-34, at 400oC with the WHSV of around 0.5 to1 h-1, the catalyst life is more than 5 hours. For HZSM-5, it does depend on the Si/Al ratio and, obviously, low Al content is beneficial for the catalyst life. Low Si/Al HZSM-5 is indeed MTG catalyst. It is generally agreed that HZSM-5 has stronger acidity than SAPO-34, so deactivation is more severe under the same conditions.
5楼2008-08-04 14:19:39
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duoduo9331

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谢谢你的回复
6楼2008-08-04 14:44:05
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duoduo9331

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请问你是做这方面研究的吗?
7楼2008-08-19 10:35:12
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yetech

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引用回帖:
Originally posted by zhutuetit at 2008-8-4 14:19:
Usually, for SAPO-34, at 400oC with the WHSV of around 0.5 to1 h-1, the catalyst life is more than 5 hours. For HZSM-5, it does depend on the Si/Al ratio and, obviously, low Al content is beneficia ...

想进一步了解"你说的ZSM-5 Si/Al比到底低到什么程度"

[ Last edited by yetech on 2008-8-19 at 15:41 ]
8楼2008-08-19 15:39:42
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