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Optimization of natural gas treatment for the removal of CO2and H2Sina novel alkaline-DEA hybrid scrubber

Sanni, Samuel Eshorame and Agboola, Oluranti and Fagbiele, Omololu Oluwatobi and Yusuf, Esther Ojima and Emetere, Moses (2020) Optimization of natural gas treatment for the removal of CO2and H2Sina novel alkaline-DEA hybrid scrubber. Egyptian Journal of Petroleum, 29. pp. 83-94.

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Abstract

Contaminated natural gas when carelessly handled, often poses human and equipment related problemsranging from lung and skin infections to corrosion, equipment fouling/failure and reduction in gas qualityowing to the presence of acid gases. In this work, four natural gas (NG) samples were treated to removeCO2and H2S using 10–50% Di-Ethanolamine (DEA) solutions mixed with 5% w/w 0.1 M calcium hydrox-ide. The treatment process gave increased acid gas removal at increased DEA concentrations. Based on thesimulation results, cost effective treatment of the gas samples, require 0.1 M Ca(OH)2and DEA mixedsolutions in the range of 27.4–30%. The optimum mixture concentration for the gas treatment was foundto be 30% Ca(OH)2-DEA hybrid solution with feed gas flow rate of 830 kscf/h. In terms of pressure energyconsumption, pumping the hybrid mix at 830 kscf/h will save pressure energy as compared to pumpingthe feed gas at 1024.58 kscf/h since the lower and upper limit feed gas flow rates gave similar results. Theoptimum pressure for NG treatment was found to be in the range of 2–2.7 bar (2–2.7*105kgm�1s�2).

Item Type: Article
Uncontrolled Keywords: AbsorptionAcid gasGas treatmentProcess optimizationProcess simulation
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 01 Dec 2020 15:44
Last Modified: 01 Dec 2020 15:44
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/13764

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