Propane ( C3H8) flowing at 1 mol/s is combusted in 35.2% excess dry air forming CO2 and H2O. The fractional conversion of propane is 0.69. Determine the inlet and outlet flow rates of species as indicated below. Species In (mol/s) Out (mol/s) C3H8 1 a O2 x b N2 3.76x c CO2 0 d H2O 0 e

Problem 2: Liquid-liquid extraction A liquid feed stream of 1500 kg/h consisting of 35 wt. % acetonitrile (1) and 65% water (2) is to be extracted using isobutyl methyl ketone (3) as the solvent. If the flow rate of the solvent is 500 kg/h, determine the flow rates and compositions of the exit streams using the phase diagram (mass fractions) below. The overall process takes place at a constant temperature of 303 K. Acetonitrile OA 1 Extract Phase 0.2 0.8 0.4 0.6 F 0.6 E 0.4 F M 0.8 0.2 Raffinate Phase Isobutyl 1 methyl ketone 0.2 0.4 0.6 0.8 1° Water Settler,

The vapor leaving the top of a distillation column goes to a condenser in which either total or partial condensation takes place. If a total condenser is used, a portion of the condensate is returned to the top of the column as refcr and the remaining liquid is taken off as the overhead product (or distillate). If a partial condenser is used, the liquid condensate is returned as reflux and the uncondensed vapor is taken off as the overhead product. The overhead product from an n-butane-n-pentane distillation column is 93 mole% butane. The temperature of the cooling fluid limits the condenser temperature to 39 °C or higher. REFLUX DRUM a) Using Raoult's law, estimate the minimum pressure at which the condenser can operate as a partial condenser (i.e., at which it can produce liquid for reflux) b) The production rate of overhead product is 50 kmol/h, and the mole ratio of reflux to overhead product is 2:1. Calculate the molar flow rates and compositions of the reflux stream and the vapor…

Solve only 1st Qs Hint 1) Ans( S= 2918.13 kg/h,U = 2289. 49 W/m2 C)

A liquid is fed to a distillation column at 4 atm absolute pressure. Its composition as a mole fraction is: n-butane: 0.40, n-pentane: 0.25, n-hexane: 0.20, n-heptane: 0.15. Using the equilibrium distribution coefficients (K), find the temperature at which this liquid will begin to boil (bubble temperature). Calculate the concentration of the first vapor bubble formed.

Two aqueous NaOH streams are combined. Stream A is 26% NaOH by mole. Stream B is 69% NaOH by mole. The product (combined) stream has a flow rate of 125 lbmole/h and is 57% NaOH by mole. Determine the flow rate of stream A and stream B (lbmole/h).

Using RCRA procedures, determine if the following are hazardous wastes. State the reason why, or why not it is hazardous. If it is hazardous, state the category number. Assume the industry producing the waste is a RCRA hazardous waste generator. 1. A drum of sulfuric acid at pH 1.2. A drum of waste trichloroethylene (22% by volume).

Q1): Tw~362 K; Tn~342 K