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["염화수소 분정",,"少量的有机物杂质在氯化氢气体中,加压至11.15bar后进行分馏纯化,加压后气体温度为17多度。想请教:是直接在

2019-08-06View Original

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氯化氢气体中含有少量有机物杂质,加压至15bar后精馏纯化,加压后气体温度170多度,想请教:是170多度直接精馏进料呢,还是冷却至30度左右精馏进料,还是冷却至泡点进料?有什么原则?过热气体进料能节约冷量及蒸汽量,但与进料板温度差别很大,精馏段与提馏段气液负荷差别大。泡点进料,精馏段与提馏段气液负荷相当,两段塔径一致,但冷量与蒸汽用量大。这种进料状况怎么处理?
Reply #22019-10-16
气相进料比泡点进料冷量需求大,除了制冷,一般加热成本比冷却成本高

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