In the hydrodealkylation of toluene to produce benzene, a stream of toluene is mixed with a...

In the hydrodealkylation of toluene to produce benzene, a stream of toluene is mixed with a recycle stream and enters a reactor along with a stream of pure hydrogen. The reaction products at 530°C enter a condenser where they are cooled to 45.0°C. A vapor stream containing 0.55 mol CH4/mol leaves the process, and a liquid stream containing 0.75 mol benzene/mol and 0.25 mol toluene/mol enters a distillation column. The distillate of the column leaves the process at 800.0 mol/hr and contains 0.9000 mol benzene/mol and 0.1000 mol toluene/mol. The bottoms of the column contain 0.15 mol benzene/mol and 0.85 mol toluene/mol and is recycled back to the fresh feed. Hydrogen is fed into the process at 1850 mol H2/hr. This process is carried out at 760 mmHg. Draw the process flow diagram and describe (label) it fully by solving for the unknown variables for all the streams. Calculate the Single Unit and Overall Conversion (%) of toluene.

Solutions

Expert Solution

Amanda K answered 3 weeks ago

Next > < Previous

Related Solutions

a stream consisting of 44.6 mole% benzene and 55.4% toluene is fed at a constant rate...

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...

A stream containing toluene (T), heptane (H) and benzene (Z) is fed into a distillation column...

A stream containing toluene (T), heptane (H) and benzene (Z) is fed into a distillation column at a rate of 200kmol/hr. The composition of the feed has molar fractions for T of 0.4, H of 0.2, Z of 0.4. The amount of toluene in the bottoms is 60% the amount of toluene in the distillate. The molar fraction of hexane in the bottom stream is 1/21 and the molar fraction of benzene in the distillate is 2/19. Solve for the...

An ideal benzene toluene mixture contains 6 moles of benzene and 4 moles of toluene at...

An ideal benzene toluene mixture contains 6 moles of benzene and 4 moles of toluene at 25 ° C. The saturated vapor pressure of pure benzene at 25 ° C is 96 Torr, the saturated vapor pressure of pure toluene is 29 Torr. Initially, the mixture at 760 Torr pressure is only liquid. The total pressure is then slowly reduced to a pressure of 60 Torr. Calculate the composition of liquid phase and vapor phase, and calculate liquid and vapor...

An ideal benzene toluene mixture contains 6 moles of benzene and 4 moles of toluene at...

An ideal benzene toluene mixture contains 6 moles of benzene and 4 moles of toluene at 25 ° C. The saturation steam pressure of pure benzene at 25 ° C is 96 Torr, the saturation steam pressure of pure toluene is 29 Torr. Initially, the mixture at 760 Torr pressure is only liquid. The total pressure is then slowly reduced to a pressure of 60 Torr. Calculate the composition of liquid phase and vapor phase, and liquid and vapor mole...

A solution of benzene (C6H6) and toluene (C7H8) is 25.0 % benzene by mass. The vapor...

A solution of benzene (C6H6) and toluene (C7H8) is 25.0 % benzene by mass. The vapor pressures of pure benzene and pure toluene at 25∘C are 94.2 and 28.4 torr, respectively. 1.)Assuming ideal behavior, calculate the vapor pressure of benzene in the mixture. Express the pressure to three significant figures and include the appropriate units. 2.)Assuming ideal behavior, calculate the vapor pressure of toluene in the mixture.

A toluene solution is blended with 25% mass of benzene. The vapor pressure of benzene and...

A toluene solution is blended with 25% mass of benzene. The vapor pressure of benzene and toluene at 25'C are 94.2 torr and 28.4 torr respectively. (a) Calculate the vapor pressure of each component, (b) total pressure of the above solution, and (c) the composition of the vapor in mass percent.

A solution of benzene and toluene is at equilibrium with vapour phase at 1 atm. Benzene...

A solution of benzene and toluene is at equilibrium with vapour phase at 1 atm. Benzene and toluene form ideal solution. The vapour phase, which is at equilibrium with liquid (solution) is ideal gas. Activity of benzene in solution is 0.3. a) Determine the temperature of the system at equilibrium. b) Determine the vapour pressure of benzene at the system’s temperature.

Value of a mixed stream For the mixed stream of cash flows shown in the following...

Value of a mixed stream For the mixed stream of cash flows shown in the following table, LOADING..., determine the future value at the end of the final year if deposits are made into an account paying annual interest of 13%, assuming that no withdrawals are made during the period and that the deposits are made: 1 30,300 2 25,250 3 20,200 4 10,100 5 5,050 a. At the end of each year. b. At the beginning of each year....

Toluene Chiller A stream of liquid toluene at 100°C is fed to a chiller at a...

Toluene Chiller A stream of liquid toluene at 100°C is fed to a chiller at a flow rate of 4.00 kg/min. The stream exits the chiller at 15°C. The heat capacity for liquid toluene can be estimated from the following equation (Cp in kJ/(mol*°C) and T in °C): = 0.1488 + (32.4 10−5) a) Draw a flow sheet for this problem, labeling all known variables; b) State assumptions required to solve the energy balance; c) Write the mass balance for...

A. There is a beaker of benzene and one of toluene. Is the entropy higher for...

A. There is a beaker of benzene and one of toluene. Is the entropy higher for two individual beakers or higher if they are mixed together and why? B. If the mixing the two substances together, what mole fraction of each maximizes the entropy? Explain reason and then show mathematically.

Subjects