{"created":"2021-03-01T06:34:03.333185+00:00","id":28265,"links":{},"metadata":{"_buckets":{"deposit":"d8a55517-8296-4ec0-b94f-ed691b8c2aaa"},"_deposit":{"id":"28265","owners":[],"pid":{"revision_id":0,"type":"depid","value":"28265"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00028265","sets":["453:456","485:872:1583:1586"]},"item_7_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"籾、玄米、籾殻、稲藁から調製した炭からの熱分解による水素生産"}]},"item_7_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-02","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"24","bibliographicPageStart":"17","bibliographicVolumeNumber":"68","bibliographic_titles":[{"bibliographic_title":"新潟大学農学部研究報告"},{"bibliographic_title":"新潟大学農学部研究報告","bibliographic_titleLang":"en"}]}]},"item_7_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"A two-step biomass gasification process of carbonization and steam gasification has been investigated in our laboratory. This new production process of hydrogen-rich water gas without any byproduct can be carried out using a small simple electrical furnace. To evaluate the possibility of using unhulled rice, brown rice, and rice husk as resources for pyrolysis gasification, bio-chars were prepared using these materials as gasifying sources. The char yields of each of the rice tissues varied in response to their corresponding content of silica compounds. As expected, a high yield of water gas was produced from these rice tissues with no by-products such as tar, oil, and inorganic compounds in RH; moreover, rice straw accelerated the gasification. It was observed that the gasification process is significantly influenced by the gasification temperature, Boudouard’s reaction (C + CO_2 → 2CO) was accelerated and the water-shift gasification reaction (CO + H_2O → CO_2 + H_2) was suppressed with increasing gasification temperature. Higher heating values (HHVs) and volume of the produced gas was increased by increasing the gasification temperature. An increase in the steam supply rates increased the produced gas volume and specific HHVs; nevertheless, an excessive supply rate cooled the reactor and decreased the gasification reaction rate. In this study, the hydrogen contents in the produced gases were higher than the predicted theoretical values. This result demonstrates that hydrogen gas can be produced without using gasifying sources and presumed that some hydrogen gas is produced by reaction with the metal on the inner surface of the reactor.","subitem_description_type":"Abstract"},{"subitem_description":"炭化と水蒸気ガス化によるバイオマス２段階ガス化プロセスが検討されてきた。副生成物を発生せずに高濃度で水素を含有するこの新規な水性ガス生産プロセスは簡易な小型電気炉によって遂行することができる。籾、玄米、籾殻、稲わらが熱分解ガス化の資源としての可能性を評価するために、それらの試料はガス化原料として炭化された。炭化収率は、試料中のケイ酸化合物含有量に対応していた。期待したとおり、タールや油状物質など副生成物を発生することなく稲試料から高収量で水性ガスが生産され、籾殻や稲わらに含まれる無機成分はガス化を促進させた。ガス化プロセスはガス化温度によって著しく影響を受け、ガス化温度が上昇することによりBoudouard 反応（C ＋ CO_2 → 2CO）は促進され、water-shift gasification 反応（CO ＋ H_2O → CO_2 ＋ H_2）は抑制されることが明らかになった。高位発熱量（HHV）と生成ガス量はガス化温度が高いほど増加した。水蒸気投入速度の上昇は、ガス生成量と単位あたりのHHV は向上したが、過剰な投入速度の上昇は反応容器を冷却しガス化速度を低下させてしまった。この研究で、生成ガス中の水素濃度は理論値よりも高い値を示した。このことは水素がガス化剤を利用しないでも生成されることを示しており、１部の水素が反応容器の内部表面に存在している金属と反応したものと推定される。","subitem_description_type":"Abstract"}]},"item_7_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"162366","nameIdentifierScheme":"WEKO"}],"names":[{"name":"小島, 康夫"}]},{"nameIdentifiers":[{"nameIdentifier":"162367","nameIdentifierScheme":"WEKO"}],"names":[{"name":"加藤, 喜明"}]}]},"item_7_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"新潟大学農学部"}]},"item_7_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_7_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00183393","subitem_source_identifier_type":"NCID"}]},"item_7_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03858634","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kojima, Yasuo"}],"nameIdentifiers":[{"nameIdentifier":"162364","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kato, Yoshiaki"}],"nameIdentifiers":[{"nameIdentifier":"162365","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-08-20"}],"displaytype":"detail","filename":"68_17-24.pdf","filesize":[{"value":"1.3 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"68_17-24.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/28265/files/68_17-24.pdf"},"version_id":"df6906d2-10c7-4d36-a28d-df4b6032afaa"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Bio-char","subitem_subject_scheme":"Other"},{"subitem_subject":"steam gasification","subitem_subject_scheme":"Other"},{"subitem_subject":"hydrogen production","subitem_subject_scheme":"Other"},{"subitem_subject":"rice husk","subitem_subject_scheme":"Other"},{"subitem_subject":"炭化物","subitem_subject_scheme":"Other"},{"subitem_subject":"水蒸気ガス化","subitem_subject_scheme":"Other"},{"subitem_subject":"水素生産","subitem_subject_scheme":"Other"},{"subitem_subject":"籾殻","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Pyrolitic bio-hydrogen production from chars prepared from unhulled rice, brown rice, rice husk, and rice straw","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Pyrolitic bio-hydrogen production from chars prepared from unhulled rice, brown rice, rice husk, and rice straw"},{"subitem_title":"Pyrolitic bio-hydrogen production from chars prepared from unhulled rice, brown rice, rice husk, and rice straw","subitem_title_language":"en"}]},"item_type_id":"7","owner":"1","path":["456","1586"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-03-16"},"publish_date":"2016-03-16","publish_status":"0","recid":"28265","relation_version_is_last":true,"title":["Pyrolitic bio-hydrogen production from chars prepared from unhulled rice, brown rice, rice husk, and rice straw"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T03:58:12.322575+00:00"}