is isobutylene recyclable
Water is separated from the first overhead stream, and the resulting isobutylene-enriched stream is recycled back to the reaction step. The first bottoms stream is distilled to produce a bottoms product stream comprising diisobutylene and a second overhead stream comprising tertiary butyl alcohol and diisobutylene.he reaction product stream, comprising diisobutylene, isobutylene, TBA, and water, is purified by a process a shown in. . The reaction product stream is passed via line 11 to a first distillation tower 10. Tower 10 contains 35 ideal stages, 11 above feed and 24 below feed.