Multistage flash drum

C02 can be separated from the shifted syngas stream in a Selexol type of absorber. Multistage flash drums can be used to extract C02 from absorbed solvents at various pressure levels typically ranging from atmospheric pressure to 400 psi. The C02 product stream is usually compressed to high pressure (llObar) for geologic storage or enhanced oil recovery. [Pg.472]

We will use this method to develop two more graphical tools - one for the analysis of flash drums and another for multistage countercurrent distillation columns. There are many others - one cannot possibly learn them all. Again the key is to know how to create graphical design tools. [Pg.167]

It is impractical to analyze the multistage flash drum process with the graphical method we devised for a single flash drum. The problem is the recycle streams -it is awkward to determine the net composition of the flow into a particular drum. For example, how would you account for the liquid effluent from the second unit in Figure 4.62 being recycled to the first unit Yet multistage distillation should be no more difficult to analyze than multistage absorption. What is the problem ... [Pg.175]

A multistage flash drum may be analyzed with an operating line on an x-y diagram,... [Pg.210]

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