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Wongsaphat Mondach. Hydrogenolysis of glycerol to 1,2-propanediol over TiO2 nanopowder supported Co-Cu bimetallic catalysts. Master's Degree(Chemical Engineering). Kasetsart University. Office of the University Library. : Kasetsart University, 2019.
Hydrogenolysis of glycerol to 1,2-propanediol over TiO2 nanopowder supported Co-Cu bimetallic catalysts
Name: Wongsaphat Mondach
Classification :.LCCS: TP973
LCSH:
Glycerin
LCSH:
Hydrogenolysis
LCSH:
Titanium dioxide
LCSH:
Metal catalysts
Abstract:
Glycerol is a low-cost byproduct of the biodiesel manufacturing process, which can be used to synthesize various value-added chemicals. Among them, 1,2-propanediol (1,2-PDO) is of great interest because it can be used as an intermediate and additive in many applications. This work investigated the hydrogenolysis of glycerol to 1,2-PDO over Co-Cu bimetallic catalysts supported on TiO2 nanopowder (denoted as CoCu/TiO2) in aqueous media. The catalysts were prepared using the co-impregnation method and their physicochemical properties were characterized using several techniques. The addition of appropriate Cu increased the glycerol conversion and the 1,2-PDO yield. The highest 1,2-PDO yield was achieved over a 15Co0.5Cu/TiO2 catalyst at 68.0% (glycerol conversion of 92.7% and 1,2-PDO selectivity of 73.4%). In the study on the effects of operating conditions, increasing the reaction temperature, initial pressure, and reaction time increased the glycerol conversion but decreased the selectivity to 1,2- PDO due to the degradation of formed 1,2-PDO to lower alcohols (1-propanol and 2-propanol). The reaction conditions to obtain the maximum 1,2-PDO yield were a catalyst-to-glycerol ratio of 0.028, a reaction temperature of 250 °C, an initial pressure of 4 MPa, and a reaction time of 4 h.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Name: Anusorn Seubsai
Role:
Thesis Advisor
Name: Thongthai Witoon
Role:
Thesis CO-Advisor
Created:
2019
Modified:
2025-07-22
Issued:
2025-07-22
วิทยานิพนธ์/Thesis
application/pdf
URL: https://www.lib.ku.ac.th/KUthesis/2563/wongsaphat-mon-all
CallNumber:
TP973 .W66
eng
DegreeName: Master of Engineering
Level: Master's Degree
Descipline: Chemical Engineering
Grantor: Kasetsart University
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
0.034489 วินาที
Wongsaphat Mondach
| Title | Contributor | Type |
|---|---|---|
| Hydrogenolysis of glycerol to 1,2-propanediol over TiO2 nanopowder supported Co-Cu bimetallic catalysts
มหาวิทยาลัยเกษตรศาสตร์ Wongsaphat Mondach | Anusorn Seubsai | วิทยานิพนธ์/Thesis |
Anusorn Seubsai
Thongthai Witoon