Gas Sweetening Hydrodynamic, ANSYS Fluent CFD Simulation Training

Rated 0 out of 5
(be the first to review)


The present problem deals with the hydrodynamic simulation of a gas sweetening system using ANSYS Fluent software.

This product includes Geometry & Mesh file and a comprehensive Training Movie.

There are some free products to check the service quality.

To order your ANSYS Fluent project (CFD simulation and training) contact our experts via [email protected], online support, or WhatsApp.


Project Description

The present problem deals with the hydrodynamic simulation of a gas sweetening system using ANSYS Fluent software. Gas sweetening is generally the process of removing hydrogen sulfide, carbon dioxide, mercaptans, and other impurities from natural gas streams and synthetic gas to make the gas suitable for transportation and use. Sour gas must be sweetened; Because hydrogen sulfide and carbon dioxide have a high corrosive effect on gas pipelines and are also considered a group of toxins for humans.

In this project, two materials are defined within the computational domain, which includes a particular sour gas and an amine stream; However, because this project only deals with the hydrodynamic modeling of this process, the gas removal process does not occur due to the occurrence of a physical or chemical phenomenon. At the same time, water flow is used as the amine material. Therefore, a multiphase model of the VOF type has been used to define this two-phase computational domain. Two inlets for amine and gas flows in the device are used, the amine stream enters at a speed of 0.3 m.s-1 and then collides with the gas stream inside the device.

Geometry & Mesh

The present model is designed in three dimensions using Design Modeler software. The present model is related to a gas sweetening device into which gas and amine streams enter.

gas sweetening

We carry out the model’s meshing using ANSYS Meshing software. The mesh type is unstructured. The element number is 2168649. The following figure shows the mesh.

gas sweetening

CFD Simulation

We consider several assumptions to simulate the present model:

  • We perform a pressure-based solver.
  • The simulation is steady.
  • The gravity effect on the fluid is equal to -9.81 m.s-2 along the vertical axis.

The following table represents a summary of the defining steps of the problem and its solution:

Viscous k-epsilon
k-epsilon model RNG
near wall treatment standard wall function
Multiphase Model VOF
number of eulerian phases 2 (gas & water)
interface modeling dispersed
Boundary conditions
Inlet – Gas Velocity Inlet
velocity magnitude 0 m.s-1
water volume fraction 0
Inlet – Amine Velocity Inlet
velocity magnitude 0.3 m.s-1
water volume fraction 1
Outlet – Gas Pressure Outlet
gauge pressure 0 pascal
Outlet – Amine Pressure Outlet
gauge pressure 0 pascal
Walls Wall
wall motion stationary wall
Pressure-Velocity Coupling SIMPLE
pressure PRESTO
momentum second order upwind
turbulent kinetic energy first order upwind
turbulent dissipation rate first order upwind
volume fraction first order upwind
Initialization methods Standard
gauge pressure 0 pascal
velocity (x,y,z) 0 m.s-1
water volume fraction 0

Gas Sweetening Results

At the end of the solution process, two-dimensional and three-dimensional contours related to pressure, velocity, and volume fraction of gas and water are obtained. As the contours show, the gas and amine currents collide after passing through the internal barriers in the device, and as a result of this collision, the amine current can transfer part of the gas flow out of the device.

You can obtain Geometry & Mesh file, and a comprehensive Training Movie which presents how to solve the problem and extract all desired results.


There are no reviews yet.

Leave a customer review

Your email address will not be published. Required fields are marked *

Back To Top

Refund Reason

you tube
Call On WhatsApp