REFINERY ATMOSPHERIC PIPESTILL WITH AMMONIA STRIPPING

摘要

In an atmospheric pipestill stripping process where steam is utilized as the stripping gas to strip bottoms and side stream products, the improvement comprising utilizing ammonia or an ammonia and steam mixture as said strippi ng gas wherein when an ammonia and steam mixture is utilized the ratio of ammon ia to steam is about 0.1:1 to about 100:1. In a refinery atmospheric pipestill stripping process utilizing a stripping gas, said process comprising utilizi ng a gas selected from the group consisting of ammonia and a mixture of ammonia and steam as said stripping gas wherein when an ammonia and steam mixture is utilized the ratio of ammonia to steam is about 0.1:1 to about 100:1.