Unformatted text preview: : 4.58. Methane reacts with chlorine to produce methyl chloride and hydrogen Chloride. Once formed, the methyl chloride may undergo further chlorination to form methylene chloride (CHEClg) chloro.
form, and carbon tetrachloride. ? mole ratio of methyl chloride to methylene chloride in the product is 5:1, and negligible amounts
of chloroform and carbon tetrachloride are formed. The product stream ﬂows to the condenser.
Two streams emerge from the condenser: the liquid condensate, which contains essentially all of the i (3) Choose a quantity of the reactor feed as a basis of calculation, draw and label a ﬂowchart, and
‘ determine the degrees of freedom for the overall process and each single unit and stream mixing
point. Then write in order the equations you would use to calculate the molar ﬂow rate and molar
composition of the fresh feed, the rate at which HCI must he removed in the absorber, the methyl chloride production rate, and the molar flow rate of the recycle stream. Do no calculations.
(1}) Calculate the quantities speciﬁed in part (a), either manually or With an equation—solving pro- (c) What molar flow rates and compositions of the hesh feed and the recycle stream are required
to achieve a methyl chloride production rate of1000 kg/h? ...
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- Fall '07