Simulation of desulfurization in natural gas by using ferrous oxide

Name: Satok Chaikunchuensakun

Organization : Thammasat University. Thammasat School of Engineering

Email : csatok@engr.tu.ac.th

Name: Kanokwan Kammongkhun

Organization : Thammasat University. Thammasat School of Engineering

Name: Pronpranate Jenhud

Organization : Thammasat University. Thammasat School of Engineering

LCSH: Natural gas

LCSH: Desulfurization

LCSH: Ferrous oxide

LCSH: Simulation

Abstract: This study investigated the desulfurization process in natural gas by examining the reaction between hydrogen sulfide (H₂S) and ferrous oxide (FeO) using Gibbs free energy minimization. The simulation aimed to analyze the effects of varying temperatures, pressures, and the amount of ferrous oxide in the reactor. The inlet gas mainly contained methane with a flowrate of 4.685 kmol/hr (3000 ppm) hydrogen sulfide at 40°C and 35.5 bar. The solid feed consisted of ferrous oxide at a flowrate of 5.3928 kmol/hr. The outlet gas contained a trace amount of hydrogen sulfide at 2.67×10⁻¹⁴ kmol/hr (equivalent to 4.65×10⁻¹² ppm). The flowrate of hydrogen sulfide in the outlet gas remained constant with pressure variations between 0.1 and 100 bar. However, when the temperature varied between 25°C and 500°C, the flowrate of hydrogen sulfide in the outlet increased from 6.5×10⁻³³ to 4.3×10⁻⁹ kmol/hr (equivalent to 1.21×10⁻³⁰ to 8.01×10⁻⁷ ppm). Sensitivity analysis revealed that a minimum of 4.7 kmol/hr of ferrous oxide was required for efficient desulfurization, with a hydrogen sulfide flowrate below 1×10⁻¹² kmol/hr (equivalent to 1.86×10⁻¹⁰ ppm).

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2025

Modified: 2025-07-29

Issued: 2025-07-29

บทความ/Article

application/pdf

BibliograpyCitation : In Thai Institute of Chemical Engineering and Applied Chemistry and Khon Kaen University. Faculty of Engineering. The 34th Thai Institute of Chemical Engineering and Applied Chemistry International Conference (TIChE 2025) (TIChE 2025 TIChE-PE-11). Bangkok : Thai Institute of Chemical Engineering and Applied Chemistry, 2025

eng

©copyrights King Mongkut's University of Technology North Bangkok

ลำดับที่.	ชื่อแฟ้มข้อมูล	ขนาดแฟ้มข้อมูล	จำนวนเข้าถึง	วัน-เวลาเข้าถึงล่าสุด
1	TIChE 2025 TIChE-PE-11.pdf	1.31 MB

ใช้เวลา

0.031049 วินาที