{"id":{"repo_id":"missouri","oai_identifier":"oai:mospace.umsystem.edu:10355/38582"},"canonical_url":"https://search.dev.ndltd.org/etd/missouri/oai:mospace.umsystem.edu:10355/38582","repository":{"repo_id":"missouri","name":"University of Missouri","base_url":"https://mospace.umsystem.edu/oai/request"},"display":{"title":"Supercritical water gasification of waste residues","abstract":"[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] A batch reactor was built in the University of Missouri Carbon Recycling Center to explore the thermo-chemical conversion of motor oil as a model compound, in supercritical water. Used motor oil was identified as a main waste compound leading to increased land fill concerns and supercritical water gasification is introduced as a method of decomposing such waste residues with high efficiencies. This study focused on supercritical water gasification of motor oil using a batch reactor operated between 750°C - 800°C. The specific goals were to determine the gasification efficiencies, to compare the effect of emulsification of motor oil on the efficiencies, and to model the gasification reaction. The gas product was analyzed by gas chromatography and a 22 full factorial was performed to identify the effects of the process variables on each component of the gaseous product. The three process variables explored in this investigation are emulsification of motor oil with water, residence time and, inlet MO concentration. Finally, the Arrhenius equation was used to model the reaction. The model parameters estimated were the pre-exponential factor (2·104 (g/ml)0.15/s), activation energy (94 kJ/mol) and the reaction order (0.85).","abstract_html":"[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] A batch reactor was built in the University of Missouri Carbon Recycling Center to explore the thermo-chemical conversion of motor oil as a model compound, in supercritical water. Used motor oil was identified as a main waste compound leading to increased land fill concerns and supercritical water gasification is introduced as a method of decomposing such waste residues with high efficiencies. This study focused on supercritical water gasification of motor oil using a batch reactor operated between 750°C - 800°C. The specific goals were to determine the gasification efficiencies, to compare the effect of emulsification of motor oil on the efficiencies, and to model the gasification reaction. The gas product was analyzed by gas chromatography and a 22 full factorial was performed to identify the effects of the process variables on each component of the gaseous product. The three process variables explored in this investigation are emulsification of motor oil with water, residence time and, inlet MO concentration. Finally, the Arrhenius equation was used to model the reaction. The model parameters estimated were the pre-exponential factor (2·104 (g/ml)0.15/s), activation energy (94 kJ/mol) and the reaction order (0.85).","abstract_has_math":false,"creators":["Wickramathilaka, Malithi"],"institution":"University of Missouri--Columbia","degree_name":"M.S.","degree_level":"Masters","degree_discipline":"Biological engineering (MU)","degree_department":null,"school":null,"contributors":[],"advisors":["Jacoby, William, 1959-"],"committee_chairs":[],"committee_members":[],"year":2013,"date_issued":"2013","date_published":"2013","updated_at":"2026-07-24T03:08:20Z","subjects":["supercritical water","emulsification","motor oil","batch reactor"],"languages":["eng","English"],"rights":["Access to files is limited to the campuses of the University of Missouri with SSO login."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10355/38582","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Jacoby, William, 1959-"]},{"key":"dc:creator","label":"Author","values":["Wickramathilaka, Malithi"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2013-09-17T16:13:54Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2013-09-17T16:13:54Z"]},{"key":"dc:date.issued","label":"Date","values":["2013"]},{"key":"dc:publisher","label":"Institution","values":["University of Missouri--Columbia"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Biological engineering (MU)"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Missouri--Columbia"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["supercritical water","emulsification","motor oil","batch reactor"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]},{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Access to files is limited to the campuses of the University of Missouri with SSO login."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10355/38582"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Title from PDF of title page (University of Missouri--Columbia, viewed on September 17, 2013).","The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.","Thesis advisor: Dr. William A. Jacoby","Includes bibliographical references.","M.S. University of Missouri--Columbia 2013.","Dissertations, Academic -- University of Missouri--Columbia -- Biological engineering.","\"May 2013\""]},{"key":"dc:description.abstract","label":"Abstract","values":["[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] A batch reactor was built in the University of Missouri Carbon Recycling Center to explore the thermo-chemical conversion of motor oil as a model compound, in supercritical water. Used motor oil was identified as a main waste compound leading to increased land fill concerns and supercritical water gasification is introduced as a method of decomposing such waste residues with high efficiencies. This study focused on supercritical water gasification of motor oil using a batch reactor operated between 750°C - 800°C. The specific goals were to determine the gasification efficiencies, to compare the effect of emulsification of motor oil on the efficiencies, and to model the gasification reaction. The gas product was analyzed by gas chromatography and a 22 full factorial was performed to identify the effects of the process variables on each component of the gaseous product. The three process variables explored in this investigation are emulsification of motor oil with water, residence time and, inlet MO concentration. Finally, the Arrhenius equation was used to model the reaction. The model parameters estimated were the pre-exponential factor (2·104 (g/ml)0.15/s), activation energy (94 kJ/mol) and the reaction order (0.85)."]},{"key":"dc:source","label":"Dc Source","values":["Submitted by University of Missouri--Columbia Graduate School."]},{"key":"dc:title","label":"Title","values":["Supercritical water gasification of waste residues"]}]}],"canonical_facts":{"dc:contributor.advisor":["Jacoby, William, 1959-"],"dc:creator":["Wickramathilaka, Malithi"],"dc:date.accessioned":["2013-09-17T16:13:54Z"],"dc:date.available":["2013-09-17T16:13:54Z"],"dc:date.issued":["2013"],"dc:description":["Title from PDF of title page (University of Missouri--Columbia, viewed on September 17, 2013).","The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.","Thesis advisor: Dr. William A. Jacoby","Includes bibliographical references.","M.S. University of Missouri--Columbia 2013.","Dissertations, Academic -- University of Missouri--Columbia -- Biological engineering.","\"May 2013\""],"dc:description.abstract":["[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] A batch reactor was built in the University of Missouri Carbon Recycling Center to explore the thermo-chemical conversion of motor oil as a model compound, in supercritical water. Used motor oil was identified as a main waste compound leading to increased land fill concerns and supercritical water gasification is introduced as a method of decomposing such waste residues with high efficiencies. This study focused on supercritical water gasification of motor oil using a batch reactor operated between 750°C - 800°C. The specific goals were to determine the gasification efficiencies, to compare the effect of emulsification of motor oil on the efficiencies, and to model the gasification reaction. The gas product was analyzed by gas chromatography and a 22 full factorial was performed to identify the effects of the process variables on each component of the gaseous product. The three process variables explored in this investigation are emulsification of motor oil with water, residence time and, inlet MO concentration. Finally, the Arrhenius equation was used to model the reaction. The model parameters estimated were the pre-exponential factor (2·104 (g/ml)0.15/s), activation energy (94 kJ/mol) and the reaction order (0.85)."],"dc:identifier.uri":["http://hdl.handle.net/10355/38582"],"dc:language":["English"],"dc:language.iso":["eng"],"dc:publisher":["University of Missouri--Columbia"],"dc:rights":["Access to files is limited to the campuses of the University of Missouri with SSO login."],"dc:source":["Submitted by University of Missouri--Columbia Graduate School."],"dc:subject":["supercritical water","emulsification","motor oil","batch reactor"],"dc:title":["Supercritical water gasification of waste residues"],"dc:type":["Thesis"],"thesis:degree_discipline":["Biological engineering (MU)"],"thesis:degree_level":["Masters"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Missouri--Columbia"]},"updated_at":"2026-07-24T03:08:20Z"}