Absorber (MF)#

The Absorber (MF) block models the process of absorption of a multicomponent medium.

Mass Conservation Law (1) :

(1)#\[\dot m_A+\dot m_B=0\]

where:

\(\dot m_A\) – mass flow rate at the inlet, [kg/s];

\(\dot m_B\) – mass flow rate at the outlet, [kg/s].

Law of conservation of energy (2) :

(2)#\[\phi_A+\phi_B=0\]

where:

\(\phi_A\) - energy flow at the input, [W];

\(\phi_B\) - energy flow at the output, [W].

Kremser equation for calculating absorption efficiency (3) :

(3)#\[x_1=x_2-\frac{A^{N+1}-A}{A^{N+1}-1}\cdot (x_2 - x_0)\]

where:

\(x_1\) – final concentration of the component in the liquid (at the outlet of the absorber);

\(x_2\) – initial concentration of the component in the liquid (at the entrance to the absorber);

\(x_0\) – equilibrium concentration;

\(N\) – number of theoretical plates;

\(A\) – absorption factor (4) :

(4)#\[A=\frac{1}{K}\]

1. Properties#

Property	Default Value	Description	Units of measurement
Absorption efficiency coefficient	0.9	-	-

Parameters	Input/Output	Description	Units of measurement	Port type
Gas inlet	Input	-	-	Multicomponent fluid
Liquid inlet	Input	-	-	Multicomponent fluid
Gas outlet	Output	-	-	Multicomponent fluid
Liquid outlet	Output	-	-	Multicomponent fluid

In order to see the connection capabilities of the block, you need to go to page Description of block ports