Transport Characteristics at High Mass Transfer Condition in a Wetted-Wall Column

CFD Simulation of a Wetted-Wall Column for Natural Gas Sweetening ‎Using DEA Solution

Natural gas usually contains significant amounts of acid gases when it is extracted from underground reservoirs. Therefore, it must be treated by appropriate processes to remove these acidic components. In this study, the simultaneous absorption of carbon dioxide and hydrogen sulfide from natural gas into diethanol amine solution was simulated using CFD. Absorption process was performed in a we...

Investigation of Packing Effect on Mass Transfer Coefficient in a Single Drop Liquid Extraction Column

Modeling and simulation of a wetted-wall column for SO2 absorption with aqueous ammonia solution

In a wetted-wall column of pilot-scale sulphur dioxide removal efficiencies were measured at 20 and atmospheric pressure with aqueous ammonia solutions. The liquid-phase mass transfer coefficient and gas-phase mass transfer coefficients of the system were determined. Based on the classical two-film theory the mathematical model was built to describe the complex absorption process. Combined with...

Simultaneous Heat and Mass Transfer in a Wetted Heat Exchanger, Part II: Modeling

An analytical model for a condenser with a wetted surface is developed by applying the governing conservations and rate equations and invoking the heat and mass transfer analogy. The heat exchanger is discretized in both the airflow and refrigerant-flow directions for a cross-flow configuration. Axial conduction along the tube walls is neglected and uniform distribution of water is assumed at t...

Preparation of Graphene-amine Nanofluid for Absorption of Carbon Dioxide (CO2) and Hydrogen Sulfide (H2S) from a Natural Gas Stream in a Wetted Wall Column

    In this study, it was shown that how CO2 and H2S were removed from a natural gas stream, using a nanofluid containing nanoporous graphene in Diehanolamine (DEA). Before running the experiments, the appropriate values were chosen for the nanosheet dosage and the liquid and gas flow rates in the absorption experiments, which were performed in a laboratory scale wetted wall column. In the expe...