28-07-2023 дата публикации
Номер: CN116492937A
Принадлежит:
The invention is applicable to the technical field of organic chemistry, and provides a device for preparing isobutene by cracking methyl tert-butyl ether, which comprises a reaction tower and a shunting tower, the reaction tower comprises a raw material feed pipe, a steam feed port, a gas steam outlet, a raw material reflux inlet and a plurality of baffle plates, the shunting tower comprises a gas interface, a product discharge port, a raw material shunting port, a sampling port, a methanol shunting port, a liquid interface and a condensation structure, the reaction tower is 8-10m in height and 0.5-0.6 m in inner diameter, the shunting tower is 9-11m in height and 0.3-0.4 m in inner diameter, and the bottom of the shunting tower is 1-2m higher than the bottom of the reaction tower. Therefore, on the premise of ensuring that a high-purity isobutene product is produced, the manufacturing cost of the device can be effectively reduced, and the production energy consumption can be reduced.
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