Isobutane is produced by the reaction of i-butane and butylene in an emulsion with concentrated H2SO4. The fresh feed to the process flows at 40,000 kg / h and contains 25% mol of i-C4, 25% mol C4H8 and 50% mol n-C4H10, which acts as inert in this process. The fresh feed is combined with 3 different recirculation streams and the mixture enters the reactor. Almost all the butylene that is fed to the reactor is consumed, a portion of the reactor effluent is recirculated back to the reactor inlet and the rest goes to a decanter, in which the aqueous phases (H2SO4) and are allowed to separate. the hydrocarbon. The acid is recirculated to the reactor and the hydrocarbon passes to a distillation column. The light distillate from the column contains iso-C8 and nC4 and the past that is recirculated to the reactor contains only i-C4. The stream entering the reactor has 23,662 mol iC4 / mol of C4H8 and 2 kg H2SO4 (aqueous) at 91% w / kg of hydrocarbon entering the reactor. The stream obtained by combining fresh feed and recirculation of i-C4 contains 5 moles of iC4 per mole of C4H8. a) The ratio of FR1 / Ffresh (in mol) is b) The ratio of FR2 / Ffresh (in mol) is c) The fraction of iso-C4 in FR1 is
Isobutane is produced by the reaction of i-butane and butylene in an emulsion with concentrated H2SO4. The fresh feed to the process flows at 40,000 kg / h and contains 25% mol of i-C4, 25% mol C4H8 and 50% mol n-C4H10, which acts as inert in this process. The fresh feed is combined with 3 different recirculation streams and the mixture enters the reactor. Almost all the butylene that is fed to the reactor is consumed, a portion of the reactor effluent is recirculated back to the reactor inlet and the rest goes to a decanter, in which the aqueous phases (H2SO4) and are allowed to separate. the hydrocarbon. The acid is recirculated to the reactor and the hydrocarbon passes to a distillation column. The light distillate from the column contains iso-C8 and nC4 and the past that is recirculated to the reactor contains only i-C4. The stream entering the reactor has 23,662 mol iC4 / mol of C4H8 and 2 kg H2SO4 (aqueous) at 91% w / kg of hydrocarbon entering the reactor. The stream obtained by combining fresh feed and recirculation of i-C4 contains 5 moles of iC4 per mole of C4H8.
a) The ratio of FR1 / Ffresh (in mol) is
b) The ratio of FR2 / Ffresh (in mol) is
c) The fraction of iso-C4 in FR1 is
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