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Worapinit Tiyatha. Synthesis of value-added chemicals from Methane via oxidative coupling of Methane using MnTiO3-Na2WO4 supported on Silica-based catalysts. Master's Degree(Chemical Engineering). Kasetsart University. Office of the University Library. : Kasetsart University, 2020.
Synthesis of value-added chemicals from Methane via oxidative coupling of Methane using MnTiO3-Na2WO4 supported on Silica-based catalysts
Name: Worapinit Tiyatha
Classification :.LCCS: TP359.M4
LCSH:
Methane
LCSH:
Manganese
LCSH:
Sodium Tungstate
LCSH:
Manganese Titanate
Abstract:
The oxidative coupling of methane (OCM) involves a chemical reaction in which methane (CH4) is converted into value-added chemicals (C2+) such as olefins and paraffins. The purpose of this research was to compare the activity of MnTiO3-Na2WO4 (MnTiO3-NW) and MnOx-TiO2-Na2WO4 (Mn-Ti-NW) at different loadings of MnTiO3 or MnOx-TiO2 on different supports (sol-gel SiO2 (SG) and commercial fumed SiO2 (CS)). All the catalysts were prepared using the impregnation method. The catalysts providing the highest C2+ yield in each group were 5 wt% MnTiO3-NW/CS, 10 wt% MnTiO3-NW/SG, and 20 wt% Mn-TiNW/SG, yielding C2+ at 20.6%, 21.6%, and 21.5%, respectively, and giving olefins/paraffins ratios of 2.12.3/1.0. The low binding energy of the oxygen species in the catalysts was directly related to the high CH4 conversion. The stability test of the catalysts over 24 h showed that the catalysts prepared on SG were more durable compared to on CS, probably because the active phases (especially for Na2WO4) were retained better with SG than with CS. The activity of MnTiO3-NW in the reaction was not substantially different from Mn-Ti-NW when SG was used.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Name: Anusorn Seubsai
Role:
Thesis Advisor
Created:
2020
Modified:
2025-07-19
Issued:
2025-07-19
วิทยานิพนธ์/Thesis
application/pdf
URL: https://www.lib.ku.ac.th/KUthesis/2563/worapinit-tiy-all.pdf
CallNumber:
TP359.M4 .W67
eng
DegreeName: Master of Engineering
Level: Master's Degree
Descipline: Chemical Engineering
Grantor: Kasetsart University
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
0.03763 วินาที
Worapinit Tiyatha
| Title | Contributor | Type |
|---|---|---|
| Synthesis of value-added chemicals from Methane via oxidative coupling of Methane using MnTiO3-Na2WO4 supported on Silica-based catalysts
มหาวิทยาลัยเกษตรศาสตร์ Worapinit Tiyatha | Anusorn Seubsai | วิทยานิพนธ์/Thesis |
Anusorn Seubsai
| Title | Creator | Type and Date Create |
|---|---|---|
| Preparation of graphene/natural rubber composite vulcanized by electron beam irradiation
มหาวิทยาลัยเกษตรศาสตร์ Paweena Prapainainar;Anusorn Seubsai | Varisara Phetarporn | วิทยานิพนธ์/Thesis |
| A study of conditions for woodceramics preparation from sugarcane residues
มหาวิทยาลัยเกษตรศาสตร์ Anusorn Seubsai ;Pongsak Hengniran | Haruthai Nuakleang | วิทยานิพนธ์/Thesis |
| Oxidative coupling of Methane over Alkaline earth-promoted Lanthanum oxide catalysts
มหาวิทยาลัยเกษตรศาสตร์ Anusorn Seubsai | Danusorn Kiatsaengthong | วิทยานิพนธ์/Thesis |
| Synthesis of value-added chemicals from Methane via oxidative coupling of Methane using MnTiO3-Na2WO4 supported on Silica-based catalysts
มหาวิทยาลัยเกษตรศาสตร์ Anusorn Seubsai | Worapinit Tiyatha | วิทยานิพนธ์/Thesis |