{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/69781"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/69781","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Supercritical Fluids: Measurement and Correlation Studies of Model Coal Compound Solubility and the Modeling of Solid-Liquid-Fluid Equilibria","abstract":"The solubilities of a number of model coal compounds have been measured in supercritical carbon dioxide, butane, ammonia, and ethanol utilizing dynamic flow apparatuses. The data base of supercritical solubilities has been extended to include solvents with higher critical temperatures than previously investigated. Studies have been made to determine the feasibility of using pure supercritical fluids to effect separations, but do not seem to indicate that this is possible.","abstract_html":"The solubilities of a number of model coal compounds have been measured in supercritical carbon dioxide, butane, ammonia, and ethanol utilizing dynamic flow apparatuses. The data base of supercritical solubilities has been extended to include solvents with higher critical temperatures than previously investigated. Studies have been made to determine the feasibility of using pure supercritical fluids to effect separations, but do not seem to indicate that this is possible.","abstract_has_math":false,"creators":["Hess, Barry Samuel"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Chemical Engineering","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-12-15T19:54:35Z","date_published":"2014-12-15T19:54:35Z","updated_at":"2026-07-22T22:26:01Z","subjects":["Engineering, Chemical"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(UMI)AAI8721656"],"render_values":[{"text":"(UMI)AAI8721656","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/69781","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Hess, Barry Samuel"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2014-12-15T19:54:35Z","1987"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"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":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Engineering, Chemical"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/69781","(UMI)AAI8721656"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The solubilities of a number of model coal compounds have been measured in supercritical carbon dioxide, butane, ammonia, and ethanol utilizing dynamic flow apparatuses. The data base of supercritical solubilities has been extended to include solvents with higher critical temperatures than previously investigated. Studies have been made to determine the feasibility of using pure supercritical fluids to effect separations, but do not seem to indicate that this is possible.","It has been shown that if an equation of state is used to correlate supercritical solubility data, then equations with the same number of adjustable parameters, regardless of their derivation, perform equally well in their representation of the data. The different equations, however, exhibit slight disparities in their qualitative representations of the correlation but the numerical results are quite similar.","Another part of this study was the modeling of the three-phase, solid-liquid-fluid, equilibria. The dissolution of a supercritical fluid in an equilibrium liquid phase may be quite substantial and markedly affects the thermodynamic properties of that liquid. If, however, the liquid is not too near its critical point, it may be treated by any of the conventional methods for characterizing normal liquids. This result is illustrated by the successful modeling of the melting point behavior for various solids in supercritical fluids, outside the region of volume dilation of the liquid phase.","Made available in DSpace on 2014-12-15T19:54:35Z (GMT). No. of bitstreams: 1 8721656.pdf: 4159408 bytes, checksum: a2d90a4423c1c74b96be2d0f17773af9 (MD5) Previous issue date: 1987","Embargo set by: Seth Robbins for item 69947 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Open Restriction set for Item 69947 on 2019-07-30T21:35:16Z with date null by mhoh2@illinois.edu.","Open","153 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1987."]},{"key":"dc:title","label":"Title","values":["Supercritical Fluids: Measurement and Correlation Studies of Model Coal Compound Solubility and the Modeling of Solid-Liquid-Fluid Equilibria"]}]}],"canonical_facts":{"dc:creator":["Hess, Barry Samuel"],"dc:date":["2014-12-15T19:54:35Z","1987"],"dc:description":["The solubilities of a number of model coal compounds have been measured in supercritical carbon dioxide, butane, ammonia, and ethanol utilizing dynamic flow apparatuses. The data base of supercritical solubilities has been extended to include solvents with higher critical temperatures than previously investigated. Studies have been made to determine the feasibility of using pure supercritical fluids to effect separations, but do not seem to indicate that this is possible.","It has been shown that if an equation of state is used to correlate supercritical solubility data, then equations with the same number of adjustable parameters, regardless of their derivation, perform equally well in their representation of the data. The different equations, however, exhibit slight disparities in their qualitative representations of the correlation but the numerical results are quite similar.","Another part of this study was the modeling of the three-phase, solid-liquid-fluid, equilibria. The dissolution of a supercritical fluid in an equilibrium liquid phase may be quite substantial and markedly affects the thermodynamic properties of that liquid. If, however, the liquid is not too near its critical point, it may be treated by any of the conventional methods for characterizing normal liquids. This result is illustrated by the successful modeling of the melting point behavior for various solids in supercritical fluids, outside the region of volume dilation of the liquid phase.","Made available in DSpace on 2014-12-15T19:54:35Z (GMT). No. of bitstreams: 1 8721656.pdf: 4159408 bytes, checksum: a2d90a4423c1c74b96be2d0f17773af9 (MD5) Previous issue date: 1987","Embargo set by: Seth Robbins for item 69947 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Open Restriction set for Item 69947 on 2019-07-30T21:35:16Z with date null by mhoh2@illinois.edu.","Open","153 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1987."],"dc:identifier":["http://hdl.handle.net/2142/69781","(UMI)AAI8721656"],"dc:subject":["Engineering, Chemical"],"dc:title":["Supercritical Fluids: Measurement and Correlation Studies of Model Coal Compound Solubility and the Modeling of Solid-Liquid-Fluid Equilibria"],"dc:type":["text"],"thesis:degree_discipline":["Chemical Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:01Z"}