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Isobutylene polymerization in gas-liquid-solid circulating mini-fluidized bed
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DOI：10.1002/aic.18806.png)
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Abstract
En 中文
The polymerization of isobutylene is an important chemical reaction process. In order to overcome the shortcomings of existing industrial fixed-bed reactors in application, a new gas-liquid-solid circulating mini-fluidized bed reactor with an inner diameter of 10 mm is developed. The influences of operating conditions, solvents, and reactant properties on isobutylene conversion, selectivity, and yield of di-isobutylene were investigated. Compared with fixed-bed reactor, the performance of the reactor was evaluated. The experimental results showed that the highest yield of di-isobutylene was 83.4%. Under the same operating conditions, the conversion rate of isobutylene in the circulating mini-fluidized bed is twice that of the fixed-bed reactor. The reaction time to achieve the same conversion rate is reduced by 2.5 times. The solid particles and bubbles in the circulating mini-fluidized bed not only provide a higher specific surface area but also cause hydrodynamic changes and effectively improve the reactor performance.
Keywords:
circulating mini-fluidized bed
gas-liquid-solid
isobutene polymerization
selectivity
yield
Journal
IF:
4
Papers:
1.1W
Citations:
2.9W
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