aspen 模拟丙烯解吸塔,结果总是出现: A LIQUID FEED/PUMPAROUND TO THE TOP STAGE IS REQUIRED WHEN "Q1=0" IS SPECIFIED IN "COL-SPECS";REQUIRED FEED/PUMPAROUND HAS ZERO FLOW.
工艺流程脱乙烯塔塔底液107进入脱丙烯塔,脱丙烯塔顶气经脱丙烯塔顶空冷器(EC-001)冷凝冷却后,富丙烯气体经脱丙烯塔顶深冷器(E005)进入系统管网,液相作为回流液返回脱丙烯塔(T-004),塔底解吸液作为循环吸收剂返回丙烯吸收塔。