CheCalc

Chemical engineering calculations to assist process, plant operation and maintenance engineers.

Multicomponent Flash Calculation

Performs Flash Calculations like BUBBLE P, DEW P, BUBBLE T, DEW T and PT Flash based on Peng Robinson (PR) Equation of State (EOS).
Data
 
First select Component Number, then select a Chemical Name.
#NameMol PcTcω
  Name_of_Co Mols_o MoBar A Mo° KM Accent
1
2
3
Binary Interaction Parameters

First select BIPs from databank, then estimate missing BIPs by correlations provided by Cheh & Prausnitz and Gao. Estimation will predict kij values only for those cells for which value is 0 or data is not available in this tool.

  Methane Ethane Propane
Methane 0.000
Ethane -0.0026 0.000
Propane 0.014 0.0011 0.000
Calculation

Determines split of feed mixture F with a molar composition Zi, into Vapor V and Liquid L at pressure P and temperature T

Bar A
° K
Result

Name Feed, Zi Xi Yi
Methane 100 400 300
Methane 100 400 300
Methane 100 400 300
Methane 100 400 300
Methane 100 400 300
Methane 100 400 300
Methane 100 400 300
Methane 100 400 300
Methane 100 400 300
Methane 100 400 300