NATURAL GAS DESULFURIZATION: TECHNOLOGICAL TRANSFORMATION AND ENVIRONMENTAL SUSTAINABILITY ISSUES

Bekmurod Muminov; Mirshoxid Maxammatov; Jamshid Qayumov; Hayit Hoyimov; Shoxrux Xolmatov

doi:10.66960/jof.3093-8899.00032

Authors

Bekmurod Muminov Master’s student Author https://orcid.org/0009-0000-9166-3480
Mirshoxid Maxammatov PhD student Author https://orcid.org/0009-0007-3718-7058
Jamshid Qayumov PhD, Associate Professor Author https://orcid.org/0000-0002-6493-1192
Hayit Hoyimov Bachelor’s student Author https://orcid.org/0009-0002-2302-7065
Shoxrux Xolmatov PhD student Author https://orcid.org/0000-0001-5871-627X

DOI:

https://doi.org/10.66960/jof.3093-8899.00032

Keywords:

membrane separation, sulfur recovery, gas sweetening, hybrid technologies

Abstract

The increasing global demand for natural gas and stricter environmental regulations require efficient removal of acidic impurities such as H₂S, SO₂ , CO₂ , and water vapor, which cause corrosion and contribute to climate change. Chemical absorption using alkanolamine solutions, particularly DEA and MDEA, remains the most widely used method, although long-term operation leads to corrosion, foaming, oxidative degradation, heat-stable salt formation, and increased operating costs. To address these challenges, composite absorbents based on DEA and MDEA modified with nitrogen-containing additives, water-soluble polymers, ammonium hydroxide (NH₄OH), and amine promoters were developed to enhance absorption capacity, reduce corrosion, and control foaming. Additionally, closed-cycle production systems using local mineral resources were proposed. LTA-type 4Å and 5Å zeolites were synthesized from Angren kaolin and characterized by SEM and XRD. The synthesized materials showed higher H₂S adsorption capacity than commercial analogs, enabling the development of high-performance, import-substituting adsorbents and environmentally sustainable gas purification technologies.

Author Biographies

Bekmurod Muminov, Master’s student

Tashkent Institute of Chemical Technology,
Tashkent, Uzbekistan
Mirshoxid Maxammatov, PhD student

Tashkent Institute of Chemical Technology,
Tashkent, Uzbekistan
Jamshid Qayumov, PhD, Associate Professor

Tashkent Institute of Chemical Technology,
Tashkent, Uzbekistan
Hayit Hoyimov, Bachelor’s student

Tashkent Institute of Chemical Technology, Tashkent, Uzbekistan
Shoxrux Xolmatov, PhD student

Tashkent Institute of Chemical Technology,
Tashkent, Uzbekistan

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