【Alkylation】The alkylation reaction is incomplete, resulting in a high amount of olefins in the subsequent isobutane removal column and n-butane removal column. How to solve this? .
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This post was last edited by Laborer 1985 on 2016-4-5 08:46. The device isn’t responding properly lately; do any of the more experienced users have any solutions? ? ? ?
1. Check the reactor current (to determine if wear of the impeller is causing a decrease in mixing efficiency)； 2. Check whether the alkene ratio is appropriate ； 3. Test the concentrated sulfuric acid inside the reactor – is it necessary to add more acid?
The current change was minimal; the alkene-to-olefin ratio decreased, and the acid concentration dropped. Acid consumption was high over these two days, so the coalescer was taken out for cleaning
So what’s the effect after coalescence cleaning? Does the isobutane reflux tank contain a lot of water? How are the raw materials?
The most effective approach is to increase the alkene-to-alkane ratio in the reactor, particularly by raising this ratio of the feed material to between 1.5 and 2.0, thereby reducing the output and depleting the olefins present in the system; subsequent adjustments should be made while paying attention to changes in acid concentration.
Alkylation ratio? Acid hydrocarbon ratio? Acid concentration?
Check the reactor current (to determine whether impeller wear is causing a decrease in mixing efficiency)； 2. Check whether the alkene ratio is appropriate ； 3. Test the concentrated sulfuric acid in the reactor to determine whether additional acid needs to be added. Is there too much water in the isobutane reflux tank? How about the raw materials?
My legs were sore from running those days; I brought everything to the tank area
Ultimately, the accident was caused mainly by the failure to replenish the acid concentration in a timely manner