heat exchangers in refineries. the equipment for oil refining. heat exchanger for flammable liquids. the plant for the primary

absorption assembly atmospheric bundle business chemistry column complex condensation construction cooling cracking crude demetallization desulphurization distillate distillation ecology exchanger factory flavoring gas heat heating heavy industrial industry investment machinery oil petrochemical petroleum piping plant pollutant polymer power production projects pumping reagent rectification refinery refining steam supply technology vacuum valve