{"id":{"repo_id":"buffalo","oai_identifier":"oai:ubir.buffalo.edu:10477/86777"},"canonical_url":"https://search.dev.ndltd.org/etd/buffalo/oai:ubir.buffalo.edu:10477/86777","repository":{"repo_id":"buffalo","name":"Buffalo","base_url":"https://ubir.buffalo.edu/oai/request"},"display":{"title":"Effect of Moisture on Adsorption of Carbon Disulfide (CS₂) Using Polymeric Materials","abstract":"M.S.","abstract_html":"M.S.","abstract_has_math":false,"creators":["Rashid, Nuvia; 0000-0002-2055-572X"],"institution":"State University of New York at Buffalo","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Atkinson, John","Civil, Structural and Environmental Engineering"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025-02-21T21:44:59Z","date_published":"2025-02-21T21:44:59Z","updated_at":"2026-07-27T19:05:37Z","subjects":["environmental engineering"],"languages":["eng"],"rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10477/86777","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Atkinson, John","Civil, Structural and Environmental Engineering"]},{"key":"dc:creator","label":"Author","values":["Rashid, Nuvia; 0000-0002-2055-572X"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2025-02-21T21:44:59Z","2020"]},{"key":"dc:publisher","label":"Institution","values":["State University of New York at Buffalo"]},{"key":"dc:type","label":"Dc Type","values":["Text","Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["environmental engineering"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/10477/86777"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["M.S.","CS2 is an industrial gas used primarily in manufacturing processes. In addition to being directly harmful for human health, CS2 is an extremely flammable gas (flash point: -30 °C) that causes fire hazards. Existing and popular control technologies, other than adsorption, are unable to provide an opportunity for recovery of this expensive industrial gas. On the other hand, physical adsorption using activated carbon (AC) allows for CS2 recovery, but the adsorption capacity of AC can be reduced by 60-80%, depending on the surface area and chemical composition of the AC, when moisture is present in the gas stream. Adsorption of industrial gases using porous polymers is gaining popularity because polymers can readily be tailored for their intended use, whether it be through physical or chemical modifications. This is achieved by altering the monomers used to prepare the final polymeric structures. In this work, polymers with varying surface area (from as high as 1340 to as low as 240 m2/g) and hydrophobicity (from extremely hydrophobic to hydrophilic) are investigated as CS2 adsorbents in dry and wet gas streams. The polymer with the highest specific surface area (1340 m2/g), commercial Dowex Optipore V493, shows the longest breakthrough time of 361.37 min when the 1000 ppmv CS2 gas stream is dry. Its breakthrough time, however, decreases by 10.44% when moisture nearly saturates the gas stream. A moderately porous polymer with less specific surface area (810 m2/g), commercial Amberlite XAD4, has a breakthrough time of 93.17 min in dry conditions and is almost unaffected by the added moisture, showing only 0.72% decrease in breakthrough time when wet conditions are applied. The results suggest a dependence on physical properties for determining CS2 adsorption capacity in dry conditions. However chemical properties control performance when moisture is added due to competitive water adsorption. The most hydrophilic polymer considered in this study, commercial Amberlite XAD7, shows a 53.89% reduction in breakthrough time in the high moisture content conditions. These results can be used in industry for CS2 separation and, possibly, recovery when there is moisture present in the gas stream.","**To request an accessible version of the file(s) associated with this item, contact library@buffalo.edu. Please include the item's persistent URL [http://hdl.handle.net/. . .] in your request.**"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Effect of Moisture on Adsorption of Carbon Disulfide (CS₂) Using Polymeric Materials"]}]}],"canonical_facts":{"dc:contributor":["Atkinson, John","Civil, Structural and Environmental Engineering"],"dc:creator":["Rashid, Nuvia; 0000-0002-2055-572X"],"dc:date":["2025-02-21T21:44:59Z","2020"],"dc:description":["M.S.","CS2 is an industrial gas used primarily in manufacturing processes. In addition to being directly harmful for human health, CS2 is an extremely flammable gas (flash point: -30 °C) that causes fire hazards. Existing and popular control technologies, other than adsorption, are unable to provide an opportunity for recovery of this expensive industrial gas. On the other hand, physical adsorption using activated carbon (AC) allows for CS2 recovery, but the adsorption capacity of AC can be reduced by 60-80%, depending on the surface area and chemical composition of the AC, when moisture is present in the gas stream. Adsorption of industrial gases using porous polymers is gaining popularity because polymers can readily be tailored for their intended use, whether it be through physical or chemical modifications. This is achieved by altering the monomers used to prepare the final polymeric structures. In this work, polymers with varying surface area (from as high as 1340 to as low as 240 m2/g) and hydrophobicity (from extremely hydrophobic to hydrophilic) are investigated as CS2 adsorbents in dry and wet gas streams. The polymer with the highest specific surface area (1340 m2/g), commercial Dowex Optipore V493, shows the longest breakthrough time of 361.37 min when the 1000 ppmv CS2 gas stream is dry. Its breakthrough time, however, decreases by 10.44% when moisture nearly saturates the gas stream. A moderately porous polymer with less specific surface area (810 m2/g), commercial Amberlite XAD4, has a breakthrough time of 93.17 min in dry conditions and is almost unaffected by the added moisture, showing only 0.72% decrease in breakthrough time when wet conditions are applied. The results suggest a dependence on physical properties for determining CS2 adsorption capacity in dry conditions. However chemical properties control performance when moisture is added due to competitive water adsorption. The most hydrophilic polymer considered in this study, commercial Amberlite XAD7, shows a 53.89% reduction in breakthrough time in the high moisture content conditions. These results can be used in industry for CS2 separation and, possibly, recovery when there is moisture present in the gas stream.","**To request an accessible version of the file(s) associated with this item, contact library@buffalo.edu. Please include the item's persistent URL [http://hdl.handle.net/. . .] in your request.**"],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/10477/86777"],"dc:language":["eng"],"dc:publisher":["State University of New York at Buffalo"],"dc:rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"dc:subject":["environmental engineering"],"dc:title":["Effect of Moisture on Adsorption of Carbon Disulfide (CS₂) Using Polymeric Materials"],"dc:type":["Text","Thesis"]},"updated_at":"2026-07-27T19:05:37Z"}