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甲基叔丁基醚(MTBE)作为一种汽油添加剂,可提高汽油的辛烷值,增加抗爆性。兰州石化公司合成橡胶厂MTBE装置是以抽提丁二烯装置的抽余碳四为原料,在催化剂作用下与甲醇发生醚化反应生成MTBE,剩余碳四组分经甲醇水洗回收系统、1-丁烯精制系统后得到高纯度1-丁烯产品和液化气。1反应原理抽余碳四中的异丁烯和甲醇,以S型强酸性阳离子为催化剂,温度控制在35~65℃(其中第一醚化反应器和反应精馏塔催化剂床层温
Methyl tert-butyl ether (MTBE) as a gasoline additive, can improve the octane number of gasoline, increase antiknock. MTBE plant of Lanzhou Petrochemical Company Synthetic Rubber Factory is based on the extraction of butadiene carbon tetrachloride unit as raw material, etherification reaction with methanol under the action of catalyst to generate MTBE, the remaining four components of methanol by methanol recovery system, 1- Butene refined system to get high purity 1-butene products and liquefied gas. 1 Principle of reaction raffinate four carbon isobutylene and methanol to S strong acid cation as catalyst temperature control at 35 ~ 65 ℃ (wherein the first etherification reactor and the reaction rectification column catalyst bed temperature