{"id":{"repo_id":"utc","oai_identifier":"oai:scholar.utc.edu:theses-1627"},"canonical_url":"https://search.dev.ndltd.org/etd/utc/oai:scholar.utc.edu:theses-1627","repository":{"repo_id":"utc","name":"University of Tennessee - Chattanooga","base_url":"https://scholar.utc.edu/do/oai/"},"display":{"title":"The systematic study of corrosion and oxygen control by chemical scavenging agents","abstract":"Corrosion of metal components in electrical power generation boilers is a serious and expensive problem that is a major concern to manufacturers and electrical utility personnel. Lost production and large costs associated with component failures have created a tremendous research effort to help minimize corrosive attack. One particular area that has received considerable attention is control of dissolved oxygen concentrations in operational and idle boiler systems. Numerous products and treatment schemes have been developed that have provided reliable means to help reduce corrosion due to dissolved oxygen attack. An unanswered question, however, is to what degree these treatment methods control corrosion and which method offers the superior performance. In this research, an exhaustive comparative study was completed to ascertain the relative efficiencies of five commercially available scavenging agents in their control of dissolved oxygen and metal corrosion. Both laboratory and large-scale field studies were done to provide more conclusive information and to offer recommendations on various treatment schemes. The overall results showed that improved scavenging agents did reduce dissolved oxygen concentrations at more rapid rates and also helped minimize corrosion. However, based on the research findings, it appears to be questionable to invest more funds to gain the small benefits associated with use of improved scavenger agents. Determination of treatment selection should be done on a case-by-case basis evaluating costs versus benefits. Overall, it appeared that control of solution alkalinity and elimination of air/water interfaces was more important than the scavenger chosen for oxygen control.","abstract_html":"Corrosion of metal components in electrical power generation boilers is a serious and expensive problem that is a major concern to manufacturers and electrical utility personnel. Lost production and large costs associated with component failures have created a tremendous research effort to help minimize corrosive attack. One particular area that has received considerable attention is control of dissolved oxygen concentrations in operational and idle boiler systems. Numerous products and treatment schemes have been developed that have provided reliable means to help reduce corrosion due to dissolved oxygen attack. An unanswered question, however, is to what degree these treatment methods control corrosion and which method offers the superior performance. In this research, an exhaustive comparative study was completed to ascertain the relative efficiencies of five commercially available scavenging agents in their control of dissolved oxygen and metal corrosion. Both laboratory and large-scale field studies were done to provide more conclusive information and to offer recommendations on various treatment schemes. The overall results showed that improved scavenging agents did reduce dissolved oxygen concentrations at more rapid rates and also helped minimize corrosion. However, based on the research findings, it appears to be questionable to invest more funds to gain the small benefits associated with use of improved scavenger agents. Determination of treatment selection should be done on a case-by-case basis evaluating costs versus benefits. Overall, it appeared that control of solution alkalinity and elimination of air/water interfaces was more important than the scavenger chosen for oxygen control.","abstract_has_math":false,"creators":["Hays, Robert Lee"],"institution":"University of Tennessee at Chattanooga","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Cunningham, James R.","College of Engineering and Computer Science"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":null,"date_issued":"","date_published":null,"updated_at":"2026-07-24T05:46:28Z","subjects":["Corrosion and anti-corrosives","Steam-boilers Corrosion"],"languages":["English","eng"],"rights":[],"rights_urls":["https://rightsstatements.org/page/InC/1.0/?language=en"],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["LB2369.2 .H39 1986"],"render_values":[{"text":"LB2369.2 .H39 1986","href":null,"code":true}]}]},"links":{"outbound_url":"https://scholar.utc.edu/theses/479","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Cunningham, James R.","College of Engineering and Computer Science"]},{"key":"dc:creator","label":"Author","values":["Hays, Robert Lee"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1986-12-01T08:00:00Z"]},{"key":"dc:publisher","label":"Institution","values":["University of Tennessee at Chattanooga","Chattanooga (Tenn.)"]},{"key":"dc:relation","label":"Dc Relation","values":["Masters Theses and Doctoral Dissertations"]},{"key":"dc:type","label":"Dc Type","values":["Masters theses","Text"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Corrosion and anti-corrosives","Steam-boilers Corrosion"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["https://rightsstatements.org/page/InC/1.0/?language=en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["LB2369.2 .H39 1986","https://scholar.utc.edu/theses/479"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Dept. of Engineering","M. S.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Science."]},{"key":"dc:description.abstract","label":"Abstract","values":["Corrosion of metal components in electrical power generation boilers is a serious and expensive problem that is a major concern to manufacturers and electrical utility personnel. Lost production and large costs associated with component failures have created a tremendous research effort to help minimize corrosive attack. One particular area that has received considerable attention is control of dissolved oxygen concentrations in operational and idle boiler systems. Numerous products and treatment schemes have been developed that have provided reliable means to help reduce corrosion due to dissolved oxygen attack. An unanswered question, however, is to what degree these treatment methods control corrosion and which method offers the superior performance. In this research, an exhaustive comparative study was completed to ascertain the relative efficiencies of five commercially available scavenging agents in their control of dissolved oxygen and metal corrosion. Both laboratory and large-scale field studies were done to provide more conclusive information and to offer recommendations on various treatment schemes. The overall results showed that improved scavenging agents did reduce dissolved oxygen concentrations at more rapid rates and also helped minimize corrosion. However, based on the research findings, it appears to be questionable to invest more funds to gain the small benefits associated with use of improved scavenger agents. Determination of treatment selection should be done on a case-by-case basis evaluating costs versus benefits. Overall, it appeared that control of solution alkalinity and elimination of air/water interfaces was more important than the scavenger chosen for oxygen control."]},{"key":"dc:title","label":"Title","values":["The systematic study of corrosion and oxygen control by chemical scavenging agents"]}]}],"canonical_facts":{"dc:contributor":["Cunningham, James R.","College of Engineering and Computer Science"],"dc:creator":["Hays, Robert Lee"],"dc:date":["1986-12-01T08:00:00Z"],"dc:description":["Dept. of Engineering","M. S.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Science."],"dc:description.abstract":["Corrosion of metal components in electrical power generation boilers is a serious and expensive problem that is a major concern to manufacturers and electrical utility personnel. Lost production and large costs associated with component failures have created a tremendous research effort to help minimize corrosive attack. One particular area that has received considerable attention is control of dissolved oxygen concentrations in operational and idle boiler systems. Numerous products and treatment schemes have been developed that have provided reliable means to help reduce corrosion due to dissolved oxygen attack. An unanswered question, however, is to what degree these treatment methods control corrosion and which method offers the superior performance. In this research, an exhaustive comparative study was completed to ascertain the relative efficiencies of five commercially available scavenging agents in their control of dissolved oxygen and metal corrosion. Both laboratory and large-scale field studies were done to provide more conclusive information and to offer recommendations on various treatment schemes. The overall results showed that improved scavenging agents did reduce dissolved oxygen concentrations at more rapid rates and also helped minimize corrosion. However, based on the research findings, it appears to be questionable to invest more funds to gain the small benefits associated with use of improved scavenger agents. Determination of treatment selection should be done on a case-by-case basis evaluating costs versus benefits. Overall, it appeared that control of solution alkalinity and elimination of air/water interfaces was more important than the scavenger chosen for oxygen control."],"dc:identifier":["LB2369.2 .H39 1986","https://scholar.utc.edu/theses/479"],"dc:language":["English","eng"],"dc:publisher":["University of Tennessee at Chattanooga","Chattanooga (Tenn.)"],"dc:relation":["Masters Theses and Doctoral Dissertations"],"dc:rights":["https://rightsstatements.org/page/InC/1.0/?language=en"],"dc:subject":["Corrosion and anti-corrosives","Steam-boilers Corrosion"],"dc:title":["The systematic study of corrosion and oxygen control by chemical scavenging agents"],"dc:type":["Masters theses","Text"]},"updated_at":"2026-07-24T05:46:28Z"}