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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.
An acetylene cylinder with 360 cu. ft. can supply 36 cubic feet per hour (CFH) with intermittent use and only 24 CFH in continuous use. This makes manifolding of acetylene cylinders a must in heavy-duty applications. Any regulator you use with acetylene must have a 15-PSIG red-line gauge. Regulators that have the acetylene and other fuel gas No. 510 CGA inlet connection but don't have the 15-PSIG red-line gauge must be marked not for use with acetylene..