Ni on Ce:Mg Oxides (9:1) as Catalyst for the Selective Catalytic Thermochemical Conversion of Glycerol to 1,2 Propanediol and Ethanol
Menchavez, Russel Navarro. (2014). Ni on Ce:Mg Oxides (9:1) as Catalyst for the Selective Catalytic Thermochemical Conversion of Glycerol to 1,2 Propanediol and Ethanol. Theses and Dissertations Collection, University of Idaho Library Digital Collections. https://www.lib.uidaho.edu/digital/etd/items/menchavez_idaho_0089n_10476.html
- Title:
- Ni on Ce:Mg Oxides (9:1) as Catalyst for the Selective Catalytic Thermochemical Conversion of Glycerol to 1,2 Propanediol and Ethanol
- Author:
- Menchavez, Russel Navarro
- Date:
- 2014
- Keywords:
- 1,2 PDO ethanol glycerol heterogeneous catalyst hydrogenolysis Ni catalyst
- Program:
- Biological & Agricultural Engineering
- Subject Category:
- Chemistry; Energy; Chemical engineering
- Abstract:
-
A supported Ni catalyst was developed for the selective production of ethanol and 1,2 propanediol (1,2 PDO) from glycerol hydrogenolysis. Screening of various supports showed that Ni/ CeO2 has the best potential and was improved by addition of promoters. Adding Mg at a Ce:Mg molar ratio of 80:20 provided the best improvement for the combined selectivity of ethanol and 1,2 PDO. Ethanol selectivity was further improved to 15.28% by varying Ce:Mg molar ratio to 90:10. The catalyst of 25 wt% Ni/Ce:Mg (9:1) prepared via deposition precipation showed higher activity as compared to the catalyst prepared by impregnation. Catalyst calcined at 350˚C showed better selecitivies of ethanol and 1,2 PDO at 15.61% and 67.3%, respectively. The effects of reaction temperature, initial water content, initial hydrogen pressure, and extension of reaction time were also investigated. The catalyst 25 wt% Ni/Ce:Mg (9:1) showed a better potential as compared to the commercial Raney® Ni catalyst.
- Description:
- masters, M.S., Biological & Agricultural Engineering -- University of Idaho - College of Graduate Studies, 2014
- Major Professor:
- He, Brian
- Committee:
- Morra, Matthew; Van Gerpen, Jon
- Defense Date:
- 2014
- Identifier:
- Menchavez_idaho_0089N_10476
- Type:
- Text
- Format Original:
- Format:
- application/pdf
- Rights:
- In Copyright - Educational Use Permitted. For more information, please contact University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu.
- Standardized Rights:
- http://rightsstatements.org/vocab/InC-EDU/1.0/