Process for removing carbonyl sulfide in a gas phase hydrocarbon stream and apparatus relating thereto

摘要

One exemplary embodiment can be a process for removing carbonyl sulfide in a gas phase hydrocarbon stream. The process may include combining the gas phase hydrocarbon stream with another stream including an alkali and an alkanolamine, and passing the combined stream to a prewash zone including a vessel. The gas phase hydrocarbon may include carbonyl sulfide, and the alkali can include at least one of potassium hydroxide, sodium hydroxide, and ammonia. Usually, the vessel contains a contacting zone and a coalescing zone for removing the carbonyl sulfide.

主权项

1. A process for removing carbonyl sulfide in a gas phase hydrocarbon stream, comprising:
A) combining the gas phase hydrocarbon stream comprising carbonyl sulfide with another stream comprising an alkali, in turn comprising, at least one of potassium hydroxide, sodium hydroxide, and ammonia, and an alkanolamine; and B) passing the combined stream to a prewash zone comprising a vessel; wherein the vessel contains a contacting zone wherein the contacting zone comprises one or more trays and a coalescing zone for removing the carbonyl sulfide.