Patent ID: 8404916

Claim:
A process for separating a second flush material from a combined desorbent in adsorption separation system comprising an adsorption separation unit, an extract separation column, and a raffinate separation column, the process comprising: passing at least one of an extract separation column side cut stream comprising the combined desorbent and a raffinate separation column side cut stream comprising the combined desorbent to a desorbent splitter column, the combined desorbent comprising a desorbent material and first and second flush materials; separating the desorbent material from the first and second flush materials in the desorbent splitter column to provide a desorbent splitter column overhead stream comprising the desorbent material; separating the second flush material from the first flush material; storing the separated second flush material in a second flush material storage tank; and introducing the separated first flush material into the adsorption separation system without reintroducing the separated second flush material.