丙烯精馏塔的热泵精馏流程？ 名词解释当然要看帮助了， 官方的解释最权威： column pseudoproducts may be used to create streams which correspond to column internal streams and make them available for flowsheet calculations. pseudo streams have no effect on the column material balance. any number of pseudo streams may be created. usage from the column main window, push the feeds and products button. from the column feeds and products window, push the pseudoproducts button. the appropriate entries are selected or entered in the drop-down list boxes. pseudoproduct the identifier for the pseudo stream in the simulation flowsheet. the pseudo stream may be used as a feed to any other unit operation in the flowsheet. the identifier can only be changed from the main pfd window. from tray the column tray number from which the pseudoproduct is to be drawn. this information comes from the column feeds and products window and cannot be changed here. phase pseudoproduct phase, liquid, vapor, liquid 1 or liquid 2. this information comes from the column feeds and products window and cannot be changed here. type of pseudoproduct several types of pseudoproducts are available: (a) net tray flow : the net fluid leaving a tray and entering the next, excluding product streams and pumparounds. (b) total tray flow : the total fluid leaving a tray, including products and pumparounds. (c) pumparound : the liquid or vapor draw for a pumparound (note that a vapor draw is really a "bypass"). this option is limited to the inside-out, enhanced i/o and sure column algorithms. (d) thermosiphon reboiler feed : the reboiler sump liquid for a column with a thermosiphon reboiler. this option is limited to the inside-out and enhanced i/o column algorithm. (e) thermosiphon reboiler product : the vapor or liquid return stream from a thermosiphon reboiler, depending on the phase selected above. this option is limited to the inside-out and enhanced i/o column algorithm. pumparound name the names of previously defined column pumparounds which are drawn from the specified tray.查看更多
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