The product stream is distilled to produce a first overhead stream comprising water and isobutylene and a first bottoms stream comprising diisobutylene and tertiary butyl alcohol. 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 second overhead stream comprising tertiary butyl alcohol and a bottoms product stream comprising diisobutylene.his example shows that the use of a single distillation tower with a side draw is ineffective for removing water from the TBA recycle stream (line 4), or from the isobutylene recycle stream (line 5).
Over time, sludge builds up inside the radiator and the coolant becomes less effective, which will hurt your engine performance and gas mileage. Flushing your radiator regularly, usually once every two to five years, will keep you car running smoothly.
Two Parts:Flushing the HeaterFinishing UpCommunity Q&A. Water heaters should be flushed every one to three years depending on the model and water source. This helps to control the buildup of mineral deposits. Your water heater will operate more efficiently and this will usually extend the life of the heater. Use this guide to flush your water heater.