What to do if there are many light components in a gas fractionation distillation column?
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Recently, the feed components in our gas processing unit have been relatively light, with a high proportion of methane, ethane, and propane. As a result, the pressures in the deethanizer and propylene column are extremely high during operation; it’s not possible to increase the bottom temperature. The only option is to discharge the non-condensable gases into the reflux tank. Is there any better solution?
The gas separation unit is unable to handle it. Quality control over products should be strengthened at the upstream facilities.
The gas separation unit is unable to handle it. It is necessary to ensure that the C2 content in the feed gas remains at or below 2% through stricter control. If it is not possible to control the composition of the feed gas, an absorption tower can be installed before it enters the plant, where C2 and compounds with lower molecular weights can be absorbed using gasoline before the gas proceeds further into the plant.
It seems it’s still a problem with controlling the content of light components in the feed
Reply to 1# Soaring Eagle: To solve this problem, it is necessary to control the upstream products, by managing the input materials.
Catalytic combined optimization is needed; gas fractionation has a limit when it comes to processing light components