P2.70 In petroleum refining, crude oil is separated into several different mix- tures of hydrocarbons. One product stream is called the light alkanes, which contain mainly methane, ethane, propane,...

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Extracted text: P2.70 In petroleum refining, crude oil is separated into several different mix- tures of hydrocarbons. One product stream is called the light alkanes, which contain mainly methane, ethane, propane, butane, and pentane. In one facility, the light alkane stream [1000 kgmol/h, 10 mol% methane (M), 30 mol% ethane (E), 15 mol% propane (P), 30 mol% butane (B), and 15 mol% isopentane (/)] is processed to produce five different prod- uct streams The separation is done in a series of distillation columns, as shown. Stream 4, 6, and 11 flow rates are 40, 100, and 300 kgmol/h, respectively. Complete a DOF analysis. Calculate flow rates and compo- sitions of all process streams. Report your results in both mole and mass units, using a table format, with stream numbers as column headings and components as row headings. M E 0.5% M M E E P Mіxer Separator E P 2% M E 4, E Separator Separator B E 1% Separator P B 10 Separator P В I В 2% 12 !