1
answer
0
watching
175
views
17 Nov 2019
A separation system is used to separate a mixture of ethylene, benzene, ethylbenzene and diethylbenzene. A flow diagram of the process is shown below. The feed to the system enters at a rate of 200 kmol/hr with mole fractions of 0.19 mol% ethylene, 63.29% benzene. 32.83% ethylbenzene and 3.69% diethylbenzene. The feed enters a flash unit where all of the ethylene and some of the other components arc vaporized. The vapor leaving the top of the flash contains 5.6 mol% ethylene, 86.9% benzene, 7.36% ethylbenzene and 0.14% diethylbenzene. The liquid stream from the bottom of the flash is fed to distillation column T1 to recover most of the benzene. The stream leaving the top of T1 consists of 99.46 mol% benzene and 0.54% ethylbenzene. The stream from the bottom of T1 is fed to distillation column T2 to recover the ethylbenzene. The top stream leaving T2 is essentially 100% ethylbenzene and the bottom stream is 8.08% ethylbenzene and 91.92% diethylbenzene. Calculate the molar flow rate and compositions for all streams. Calculate the total flow rate and molar flow rate of each component in each stream and record your results in the table below. Record total and component flow rate for all stream in the table below.
A separation system is used to separate a mixture of ethylene, benzene, ethylbenzene and diethylbenzene. A flow diagram of the process is shown below. The feed to the system enters at a rate of 200 kmol/hr with mole fractions of 0.19 mol% ethylene, 63.29% benzene. 32.83% ethylbenzene and 3.69% diethylbenzene. The feed enters a flash unit where all of the ethylene and some of the other components arc vaporized. The vapor leaving the top of the flash contains 5.6 mol% ethylene, 86.9% benzene, 7.36% ethylbenzene and 0.14% diethylbenzene. The liquid stream from the bottom of the flash is fed to distillation column T1 to recover most of the benzene. The stream leaving the top of T1 consists of 99.46 mol% benzene and 0.54% ethylbenzene. The stream from the bottom of T1 is fed to distillation column T2 to recover the ethylbenzene. The top stream leaving T2 is essentially 100% ethylbenzene and the bottom stream is 8.08% ethylbenzene and 91.92% diethylbenzene. Calculate the molar flow rate and compositions for all streams. Calculate the total flow rate and molar flow rate of each component in each stream and record your results in the table below. Record total and component flow rate for all stream in the table below.
Elin HesselLv2
3 Sep 2019