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Question of Aspen Hysys

The document provides information about the distillation of a mixture containing benzene and toluene. It lists the component concentrations in the feed, operating temperature and pressure, distillate and bottom compositions, and relative volatility. It then outlines the steps to determine the minimum number of trays, optimum feed stage, minimum reflux ratio using Fenske and Underwood equations, actual reflux ratio, number of trays, and vapor and liquid flow rates for the distillation column.

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Riaz
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416 views2 pages

Question of Aspen Hysys

The document provides information about the distillation of a mixture containing benzene and toluene. It lists the component concentrations in the feed, operating temperature and pressure, distillate and bottom compositions, and relative volatility. It then outlines the steps to determine the minimum number of trays, optimum feed stage, minimum reflux ratio using Fenske and Underwood equations, actual reflux ratio, number of trays, and vapor and liquid flow rates for the distillation column.

Uploaded by

Riaz
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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In 10 kmol/hr of a saturated liq

40 mol benzene

60 mol toluene

Intel temp 95C , pressure 1 atm

Disllate composistion 99.2 mol %

Bottom 98.6 %

Relative volaitity 2.354

Total condentor, Partial re boiler

1. Use fenseke eqn determine mini no. of trays


2. Determine feed optimum stage and no. of stages
3. Underwood eqn to find mini reflux eqn
4. Calculate actual reflux if R= Rmin*1.1
5. Actual no. of trays
6. Optimum feed tray
7. Rectifying liq n vapour, stripping liq and vapour flow rate

In 2000kmol/hr of saturated liq is feed to a distillation Columns at atmospheric pressure. The feed is

0.056 propane

0.321 n-butane

0.482 n pentane

0.141 n hexane

Total condenser

Partial reboiler

Reflux ration 3.5

Distillate .994 n butane

Bottom .997 n penatne

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