{"created":"2023-05-15T12:05:18.493780+00:00","id":9936,"links":{},"metadata":{"_buckets":{"deposit":"aa7e3877-8224-4df8-b052-62e21262ab1c"},"_deposit":{"created_by":3,"id":"9936","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"9936"},"status":"published"},"_oai":{"id":"oai:iwate-u.repo.nii.ac.jp:00009936","sets":["1515:1519"]},"author_link":["61750","61749","61747","61746","61748"],"item_16_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2009-01-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"6","bibliographicPageEnd":"356","bibliographicPageStart":"351","bibliographicVolumeNumber":"52","bibliographic_titles":[{"bibliographic_title":"Journal of the Japan Petroleum Institute"}]}]},"item_16_date_6":{"attribute_name":"登録日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2010-02-18"}]},"item_16_description_12":{"attribute_name":"Abstract","attribute_value_mlt":[{"subitem_description":"This preliminary study on the maintenance of industrial lubricants for chemical plant investigated appropriate maintenance through condition monitoring of the lubricants, in particular autoxidation of base oil as the major degradation process. Changes in chemical and physical properties caused by the autoxidation of hydrocarbons were considered in terms of reaction sequence. The roles of antioxidants for maintaining the quality of lubricants were also considered. The reaction mechanism suggested the importance of antioxidants in lubricants during service. Therefore, a new method to diagnose consumption of antioxidant was required. Organic peroxides are reactive species generated during the autoxidation of hydrocarbons at the initial stage and can be quantitatively analyzed by iodometric titration. The peroxide value (POV) is proposed as a new parameter to monitor conditions of lubricants. The POV trace was examined by a model oxidation test of lubricant in the laboratory. Subdivided addition of antioxidants to lubricant before an increase in POV was found to prolong the lifetime of the lubricants. POV in lubricants for compressors in chemical plant was monitored during the regular maintenance process for two years. Increased POV was observed during machine operation. Oil refill reduced the POV of the lubricant to some extent. Changes in total acid number (TAN) of lubricant were closely related to change in POV, whereas other parameters such as viscosity, insoluble contaminants and water contaminants seemed independent of the changes in POV. The utility of the POV trace depended on the conditions of machine operation, but provided early diagnostics of lubricant degradation in some cases.","subitem_description_type":"Other"}]},"item_16_publisher_14":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"The Japan Petroleum Institute"}]},"item_16_rights_18":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright (c) 2010 by The Japan Petroleum Institute"},{"subitem_rights":"本著作物の著作権は社団法人石油学会に帰属します。ご利用に当たっては著作権法ならびに社団法人石油学会に従うことをお願いいたします。"}]},"item_16_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1346-8804","subitem_source_identifier_type":"ISSN"}]},"item_16_text_4":{"attribute_name":"著者(機関)","attribute_value_mlt":[{"subitem_text_value":"Faculty of Engineering, Iwate University"},{"subitem_text_value":"Sumitomo Chemical Co., Ltd."},{"subitem_text_value":"Sumitomo Chemical Co., Ltd."},{"subitem_text_value":"Sumitomo Chemical Co., Ltd."},{"subitem_text_value":"Sumitomo Chemical Co., Ltd."}]},"item_16_version_type_27":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Minami, Ichiro"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Mori, Hisakazu"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Katoh, Akihisa"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Marukane, Yoshio"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kohzu, Yasushi"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-11-14"}],"displaytype":"detail","filename":"jjpi-v52n6p351-356.pdf","filesize":[{"value":"710.0 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"jjpi-v52n6p351-356.pdf","url":"https://iwate-u.repo.nii.ac.jp/record/9936/files/jjpi-v52n6p351-356.pdf"},"version_id":"0d99a95f-a820-4f73-bfe3-bd366e6b8417"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Lubricant maintenance","subitem_subject_scheme":"Other"},{"subitem_subject":"Peroxide value","subitem_subject_scheme":"Other"},{"subitem_subject":"Autoxidation","subitem_subject_scheme":"Other"},{"subitem_subject":"Lubricant degradation","subitem_subject_scheme":"Other"},{"subitem_subject":"Industrial lubricant","subitem_subject_scheme":"Other"},{"subitem_subject":"Antioxidant","subitem_subject_scheme":"Other"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Proposal of Lubricant Maintenance by Monitoring Peroxide Value","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Proposal of Lubricant Maintenance by Monitoring Peroxide Value"}]},"item_type_id":"16","owner":"3","path":["1519"],"pubdate":{"attribute_name":"公開日","attribute_value":"2010-02-18"},"publish_date":"2010-02-18","publish_status":"0","recid":"9936","relation_version_is_last":true,"title":["Proposal of Lubricant Maintenance by Monitoring Peroxide Value"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-05-16T11:51:55.615207+00:00"}