Colleagues in the field of methanol-to-olefins: What are the reasons for the increased carbon deposition in the DMTO reaction? Please help find answers
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Dear colleagues in the field of olefins, what are the reasons for the increased carbon deposition in the DMTO reaction? From an operational perspective, the air consumption increases significantly; however, such changes in air volume have little effect on the dilute-phase temperature in the regenerator or on the flue gas temperature. Have any of you encountered this issue? I would be very grateful if you could share some insights.
Has there been any change in your reaction temperature?
Which unit are you from! First, the reaction temperature; secondly, the methanol composition of the feed material, especially the wax content and acidity! The regeneration temperature itself
I extended the duration for Zhongmei’s process; the reaction temperature remains the same as before. As for the specific components of the methanol feedstock, are we talking about the wax content and acidity, or other aspects? And by \"reaction temperature,\" does it refer to the catalyst regeneration temperature? Could you please explain it in more detail? Thank you very much
It seems that changes in bed height and feed moisture content should be taken into consideration
Pay special attention to 1. the circulation rate of the catalyst, 2. the reaction temperature, 3. the regeneration temperature, 4. the amount of water fed into the reactor (feed water + additional steam), 5. the inventory and space velocity
The methanol component will not change much; in a situation like this, it’s very likely that the catalyst circulation rate has increased