Catalytic Hydrodeoxygenation of Bio-Oil Model Compounds (Ethanol, 2-Methyltetrahydrofuran) over Supported Transition Metal Phosphides
| dc.contributor.author | Bui, Phuong Phuc Nam | en |
| dc.contributor.committeechair | Cox, David F. | en |
| dc.contributor.committeemember | Oyama, Shigeo Ted | en |
| dc.contributor.committeemember | Liu, Yih-An | en |
| dc.contributor.committeemember | Walz, John Y. | en |
| dc.contributor.department | Chemical Engineering | en |
| dc.date.accessioned | 2015-05-27T08:07:46Z | en |
| dc.date.available | 2015-05-27T08:07:46Z | en |
| dc.date.issued | 2013-01-24 | en |
| dc.description.abstract | The objective of this project is to investigate hydrodeoxygenation (HDO), a crucial step in the treatment of bio-oil, on transition metal phosphide catalysts. The study focuses on reactions of simple oxygenated compounds present in bio-oil -- ethanol and 2-methyltetrahydrofuran (2-MTHF). The findings from this project provide fundamental knowledge towards the hydrodeoxygenation of more complex bio-oil compounds. Ultimately, the knowledge contributes to the design of optimum catalysts for upgrading bio-oil. A series of transition metal phosphides was prepared and tested; however, the focus was on Ni2P/SiO2. Characterization techniques such as X-ray diffraction (XRD), temperature-programmed reduction and desorption (TPR and TPD), X-ray photoelectron spectroscopy (XPS), and chemisorption were used. In situ Fourier transform infrared (FTIR) spectroscopy was employed to monitor the surface of Ni2P during various experiments such as: CO and pyridine adsorption and transient state of ethanol and 2-MTHF reactions. The use of these techniques allowed for a better understanding of the role of the catalyst during deoxygenation. | en |
| dc.description.degree | Ph. D. | en |
| dc.format.medium | ETD | en |
| dc.identifier.other | vt_gsexam:288 | en |
| dc.identifier.uri | http://hdl.handle.net/10919/52641 | en |
| dc.publisher | Virginia Tech | en |
| dc.rights | In Copyright | en |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject | transition metal phosphide | en |
| dc.subject | nickel phosphide | en |
| dc.subject | tungsten phosphide | en |
| dc.subject | hydrodeoxygenation (HDO) | en |
| dc.subject | deoxygenation | en |
| dc.subject | ethanol | en |
| dc.title | Catalytic Hydrodeoxygenation of Bio-Oil Model Compounds (Ethanol, 2-Methyltetrahydrofuran) over Supported Transition Metal Phosphides | en |
| dc.type | Dissertation | en |
| thesis.degree.discipline | Chemical Engineering | en |
| thesis.degree.grantor | Virginia Polytechnic Institute and State University | en |
| thesis.degree.level | doctoral | en |
| thesis.degree.name | Ph. D. | en |