{"id":{"repo_id":"purdue-thes","oai_identifier":"oai:docs.lib.purdue.edu:open_access_dissertations-2714"},"canonical_url":"https://search.dev.ndltd.org/etd/purdue-thes/oai:docs.lib.purdue.edu:open_access_dissertations-2714","repository":{"repo_id":"purdue-thes","name":"Purdue University","base_url":"https://docs.lib.purdue.edu/do/oai/"},"display":{"title":"Catalytic Hydrodeoxygenation of Guaiacol over Noble Metal Catalysts","abstract":"Pyrolysis of biomass is a promising technology to convert solid biomass into liquid bio-oils. However, bio-oils have high water and oxygen content which subsequently lowers their energy density relative to conventional hydrocarbons. For these reasons, an upgrading process is required. Catalytic hydrodeoxygenation (HDO) is a rapidly developing technology for oxygen removal from pyrolysis bio-oils and noble metal catalysts have shown promising activities, especially as compared to the traditional hydrodesulphurization catalysts (e.g. CoMo/Al2O3 and NiMo/Al2O3). However, further understanding and development of the catalysts through improving robustness, increasing the oil yield and reducing the hydrogen consumption are still required. In this work, guaiacol, a phenol derived compound produced by the thermal degradation of lignin, was selected as a model compound to study the HDO process. Guaiacol is selected because it is among the major components of pyrolysis bio-oils, but it is thermally unstable and leads to catalyst deactivation.","abstract_html":"Pyrolysis of biomass is a promising technology to convert solid biomass into liquid bio-oils. However, bio-oils have high water and oxygen content which subsequently lowers their energy density relative to conventional hydrocarbons. For these reasons, an upgrading process is required. Catalytic hydrodeoxygenation (HDO) is a rapidly developing technology for oxygen removal from pyrolysis bio-oils and noble metal catalysts have shown promising activities, especially as compared to the traditional hydrodesulphurization catalysts (e.g. CoMo/Al2O3 and NiMo/Al2O3). However, further understanding and development of the catalysts through improving robustness, increasing the oil yield and reducing the hydrogen consumption are still required. In this work, guaiacol, a phenol derived compound produced by the thermal degradation of lignin, was selected as a model compound to study the HDO process. Guaiacol is selected because it is among the major components of pyrolysis bio-oils, but it is thermally unstable and leads to catalyst deactivation.","abstract_has_math":false,"creators":["Gao, Danni"],"institution":null,"degree_name":"Doctor of Philosophy (PhD)","degree_level":"Dissertation","degree_discipline":"Chemical Engineering","degree_department":null,"school":null,"contributors":["Arvind Varma","Fabio H Ribeiro","Doraiswami Ramkrishna","Mahdi Abu-Omar"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-01-01T08:00:00Z","date_published":"2014-01-01T08:00:00Z","updated_at":"2026-07-24T03:54:44Z","subjects":["Guaiacol","Hydrodeoxygenation","Noble Metal Catalysts"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://docs.lib.purdue.edu/open_access_dissertations/1498","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Arvind Varma","Fabio H Ribeiro","Doraiswami Ramkrishna","Mahdi Abu-Omar"]},{"key":"dc:creator","label":"Author","values":["Gao, Danni"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Philosophy (PhD)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Guaiacol","Hydrodeoxygenation","Noble Metal Catalysts"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://docs.lib.purdue.edu/open_access_dissertations/1498"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Pyrolysis of biomass is a promising technology to convert solid biomass into liquid bio-oils. However, bio-oils have high water and oxygen content which subsequently lowers their energy density relative to conventional hydrocarbons. For these reasons, an upgrading process is required. Catalytic hydrodeoxygenation (HDO) is a rapidly developing technology for oxygen removal from pyrolysis bio-oils and noble metal catalysts have shown promising activities, especially as compared to the traditional hydrodesulphurization catalysts (e.g. CoMo/Al2O3 and NiMo/Al2O3). However, further understanding and development of the catalysts through improving robustness, increasing the oil yield and reducing the hydrogen consumption are still required. In this work, guaiacol, a phenol derived compound produced by the thermal degradation of lignin, was selected as a model compound to study the HDO process. Guaiacol is selected because it is among the major components of pyrolysis bio-oils, but it is thermally unstable and leads to catalyst deactivation."]},{"key":"dc:title","label":"Title","values":["Catalytic Hydrodeoxygenation of Guaiacol over Noble Metal Catalysts"]}]}],"canonical_facts":{"dc:contributor":["Arvind Varma","Fabio H Ribeiro","Doraiswami Ramkrishna","Mahdi Abu-Omar"],"dc:creator":["Gao, Danni"],"dc:description.abstract":["Pyrolysis of biomass is a promising technology to convert solid biomass into liquid bio-oils. However, bio-oils have high water and oxygen content which subsequently lowers their energy density relative to conventional hydrocarbons. For these reasons, an upgrading process is required. Catalytic hydrodeoxygenation (HDO) is a rapidly developing technology for oxygen removal from pyrolysis bio-oils and noble metal catalysts have shown promising activities, especially as compared to the traditional hydrodesulphurization catalysts (e.g. CoMo/Al2O3 and NiMo/Al2O3). However, further understanding and development of the catalysts through improving robustness, increasing the oil yield and reducing the hydrogen consumption are still required. In this work, guaiacol, a phenol derived compound produced by the thermal degradation of lignin, was selected as a model compound to study the HDO process. Guaiacol is selected because it is among the major components of pyrolysis bio-oils, but it is thermally unstable and leads to catalyst deactivation."],"dc:identifier":["https://docs.lib.purdue.edu/open_access_dissertations/1498"],"dc:subject":["Guaiacol","Hydrodeoxygenation","Noble Metal Catalysts"],"dc:title":["Catalytic Hydrodeoxygenation of Guaiacol over Noble Metal Catalysts"],"thesis:degree_discipline":["Chemical Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Doctor of Philosophy (PhD)"]},"updated_at":"2026-07-24T03:54:44Z"}