The original combined process for C 4 processing to produce high octane value gasoline in Lanzhou Petrochemical Company was made up of MTBE, polyisobutylene, gas fractionation, polymerization and alkylation units, taking FCC light C 4 distillate as feedstock.
兰州石化公司生产高辛烷值汽油的碳四加工联合工艺 ,原采用催化裂化生产的轻碳四馏分 ,由MTBE、聚异丁烯、气体分馏、叠合和烷基化等装置组成 ,流程较长。