A stream consisting of 44.6 mole% benzene and 55.4% toluene is fed at a constant rate to a process unit that produces two product streams, one a vapor and the other a liquid. The vapor flow rate is initially zero and asymptotically approaches half of the molar flow rate of the feed stream. Throughout this entire period, no material accumulates in the unit. When the vapor flow rate has become constant, the liquid is analyzed and found to be 28.0 mole% benzene.
- Sketch a plot of liquid and vapor flow rates versus time from startup to when the flow rates become constant.
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ELEMENTARY PRINCIPLES OF CHEM. PROCESS.
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- For a given reaction C2H6 + Cl2 → C2H5Cl + HCl Assume that the percentage conversion of the limiting reactant is 60% and the feed composition in mole percent is 50% C2H6, 40% Cl2 and 10% N2. (a) What is the mole percent of HCl in the product? (b) What is the mole percent of N2 in the product?arrow_forwardL-Serine is an amino acid important for its roles in synthesizing other amino acids and for its use in intravenous feeding solutions. It is often synthesized commercially by fermentation, and recovered by subjecting the fermentation broth to several processing steps and then crystallizing the serine from an aqueous solution. The solubilities of L-serine (L-Ser) in water have been measured at several temperatures, producing the following data:5T(K) 283.4 285.9 289.3 299.1 316.0 317.8 322.9 327.1x(mole fraction L-Ser) 0.0400 0.0426 0.0523 0.0702 0.1091 0.1144 0.1181 0.1248One of the ways such data can be represented is with the van’t Hoff equation: ln x =( a=T b).Graph the data so that the resulting plot is linear. Estimate a and b and give their units.arrow_forwardMethane is burned with air in a continuous combustion reactor that is at steady state.The feed to the reactor contains 7.80 mole % CH4, 19.4 mole % O2, and 72.8 mole % N4. The percentage conversion of methane is 90.0%, and the gas leaving the reactor contains 8 mol CO2/mol CO. Carry out a degree of freedom analysis of the process, and calculate the molar composition of the product stream.arrow_forward
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