{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1050303321522191232.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"HDL","@value":"https://hdl.handle.net/2324/7337603"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@language":"en","@value":"Effects of water injection on reaction temperature and hydrogen production in horizontal co-axial underground coal gasification"}],"dc:language":"en","description":[{"type":"Abstract","notation":[{"@language":"en","@value":"Underground coal gasification (UCG) is process of directly recovering energy as combustible gases such as hydrogen and carbon monoxide by combusting unmined coal resources in situ. During UCG process, the temperature in the gasification zone can exceed 1,300 °C, raising concerns about the potential melting of the steel pipe for oxidant injection. To control the temperature in the gasification zone, the use of water injection as an injection agent can be an option. Injecting water during UCG process serves two purposes: it decreases the temperature in the reaction zone by the endothermic effect of water, and it enhances the production of H2 by the reduction reaction of water. However, injecting excessive amounts of water may lead to a significant decrease in the temperature in the reaction zone, consequently cannot maintain the temperature range required for the UCG reaction. This study discusses the effects of water injection on the temperature of the gasification zone and the product gas by developing a chemical reaction model of UCG using COMSOL Multiphysics^® software. The model was developed based on the temperature and produced gas results obtained from laboratory-scale artificial coal seam UCG experiments. Our findings reveal that water injection significantly influences the gasification process, controlling temperature in the reaction zone and promoting H_2 production through steam gasification and water-gas shift reactions. Moreover, under the experiment and analysis conditions of this study, it is revealed that water injection up to an H_2O/O_2 molar ratio of 3.9 can effectively control the temperature of the gasification zone with enhancing H_2 production."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1070303321522191233","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Iriguchi, Rika"},{"@language":"ja","@value":"入口, 梨佳"},{"@language":"ja-Kana","@value":"イリグチ, リカ"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Earth Resources Engineering, Kyushu University"},{"@language":"ja","@value":"九州大学大学院工学府地球資源システム工学専攻"}]},{"@id":"https://cir.nii.ac.jp/crid/1070303321522191235","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Hamanaka, Akihiro"},{"@language":"ja","@value":"濵中, 晃弘"},{"@language":"ja-Kana","@value":"ハマナカ, アキヒロ"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Earth Resources Engineering, Kyushu University"},{"@language":"ja","@value":"九州大学大学院工学研究院地球資源システム工学部門"}]},{"@id":"https://cir.nii.ac.jp/crid/1070303321522191232","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Su, Fa-qiang"}],"jpcoar:affiliationName":[{"@language":"en","@value":"School of Energy Science and Engineering, Henan Polytechnic University"}]},{"@id":"https://cir.nii.ac.jp/crid/1070303321522191238","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Sasaoka, Takashi"},{"@language":"ja","@value":"笹岡, 孝司"},{"@language":"ja-Kana","@value":"ササオカ, タカシ"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Earth Resources Engineering, Kyushu University"},{"@language":"ja","@value":"九州大学大学院工学研究院地球資源システム工学部門"}]},{"@id":"https://cir.nii.ac.jp/crid/1070303321522191236","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Shimada, Hideki"},{"@language":"ja","@value":"島田, 英樹"},{"@language":"ja-Kana","@value":"シマダ, ヒデキ"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Earth Resources Engineering, Kyushu University"},{"@language":"ja","@value":"九州大学大学院工学研究院地球資源システム工学部門"}]},{"@id":"https://cir.nii.ac.jp/crid/1420564276160227328","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"20168298"},{"@type":"NRID","@value":"1000020168298"},{"@type":"NRID","@value":"9000370755553"},{"@type":"NRID","@value":"9000004345446"},{"@type":"NRID","@value":"9000256437158"},{"@type":"NRID","@value":"9000017522540"},{"@type":"NRID","@value":"9000380977662"},{"@type":"NRID","@value":"9000404260560"},{"@type":"NRID","@value":"9000410265872"},{"@type":"NRID","@value":"9000005761290"},{"@type":"NRID","@value":"9000045651969"},{"@type":"NRID","@value":"9000326269618"},{"@type":"NRID","@value":"9000346990676"},{"@type":"NRID","@value":"9000397860566"},{"@type":"NRID","@value":"9000350632220"},{"@type":"NRID","@value":"9000258017071"},{"@type":"NRID","@value":"9000412561660"},{"@type":"NRID","@value":"9000404265714"},{"@type":"NRID","@value":"9000392598138"},{"@type":"NRID","@value":"9000392600388"},{"@type":"NRID","@value":"9000397684072"},{"@type":"NRID","@value":"9000256434520"},{"@type":"NRID","@value":"9000312728348"},{"@type":"NRID","@value":"9000415159728"},{"@type":"NRID","@value":"9000002303313"},{"@type":"NRID","@value":"9000402096029"},{"@type":"NRID","@value":"9000242866539"},{"@type":"NRID","@value":"9000392599958"},{"@type":"NRID","@value":"9000241894398"},{"@type":"NRID","@value":"9000016717471"},{"@type":"NRID","@value":"9000248244698"},{"@type":"NRID","@value":"9000391804529"},{"@type":"NRID","@value":"9000297474208"},{"@type":"NRID","@value":"9000309184261"},{"@type":"NRID","@value":"9000383701179"},{"@type":"NRID","@value":"9000375844565"},{"@type":"NRID","@value":"9000398407744"},{"@type":"NRID","@value":"9000398407873"},{"@type":"NRID","@value":"9000351094844"},{"@type":"NRID","@value":"9000256434339"},{"@type":"NRID","@value":"9000375912569"},{"@type":"NRID","@value":"9000018755348"},{"@type":"NRID","@value":"9000392599934"},{"@type":"NRID","@value":"9000392599017"},{"@type":"NRID","@value":"9000256436841"},{"@type":"NRID","@value":"9000255830422"},{"@type":"NRID","@value":"9000009292764"},{"@type":"NRID","@value":"9000239539449"},{"@type":"NRID","@value":"9000255830295"},{"@type":"NRID","@value":"9000256435654"},{"@type":"NRID","@value":"9000400186938"},{"@type":"NRID","@value":"9000392600217"},{"@type":"NRID","@value":"9000397683349"},{"@type":"NRID","@value":"9000256436365"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/read0167409"}],"foaf:name":[{"@language":"en","@value":"Itakura, Ken-ichi"},{"@language":"ja","@value":"板倉, 賢一"},{"@language":"ja-Kana","@value":"イタクラ, ケンイチ"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Endowed Research Lab. of Un-mined Mineral Resources and Energy Eng, Muroran Institute of Technology"},{"@language":"ja","@value":"室蘭工業大学"}]},{"@id":"https://cir.nii.ac.jp/crid/1420001326212078720","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"60746973"},{"@type":"NRID","@value":"1000060746973"},{"@type":"ORCID","@value":"0000-0002-9358-0117"},{"@type":"NRID","@value":"9000403972244"},{"@type":"NRID","@value":"9000398407773"},{"@type":"NRID","@value":"9000019141872"},{"@type":"NRID","@value":"9000380977660"},{"@type":"NRID","@value":"9000410265873"},{"@type":"NRID","@value":"9000398407803"},{"@type":"NRID","@value":"9000403270550"},{"@type":"NRID","@value":"9000397684073"},{"@type":"NRID","@value":"9000415159726"},{"@type":"NRID","@value":"9000242074058"},{"@type":"NRID","@value":"9000297474205"},{"@type":"NRID","@value":"9000402037894"},{"@type":"NRID","@value":"9000398407745"},{"@type":"NRID","@value":"9000398407877"},{"@type":"NRID","@value":"9000402037947"},{"@type":"NRID","@value":"9000261049435"},{"@type":"NRID","@value":"9000403270562"},{"@type":"NRID","@value":"9000398407927"},{"@type":"NRID","@value":"9000413853954"},{"@type":"NRID","@value":"9000384267929"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/muroran_ktakahashi"}],"foaf:name":[{"@language":"en","@value":"Takahashi, Kazuhiro"},{"@language":"ja","@value":"髙橋, 一弘"},{"@language":"ja-Kana","@value":"タカハシ, カズヒロ"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Graduate School of Engineering, Muroran Institute of Technology"},{"@language":"ja","@value":"室蘭工業大学"}]},{"@id":"https://cir.nii.ac.jp/crid/1420845751153692800","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"70241411"},{"@type":"NRID","@value":"1000070241411"},{"@type":"NRID","@value":"9000003631371"},{"@type":"NRID","@value":"9000403582270"},{"@type":"NRID","@value":"9000403582224"},{"@type":"NRID","@value":"9000256437156"},{"@type":"NRID","@value":"9000256435997"},{"@type":"NRID","@value":"9000319053383"},{"@type":"NRID","@value":"9000404681779"},{"@type":"NRID","@value":"9000411772444"},{"@type":"NRID","@value":"9000403582333"},{"@type":"NRID","@value":"9000403581788"},{"@type":"NRID","@value":"9000001096984"},{"@type":"NRID","@value":"9000243722578"},{"@type":"NRID","@value":"9000410998445"},{"@type":"NRID","@value":"9000002181107"},{"@type":"NRID","@value":"9000356913400"},{"@type":"NRID","@value":"9000409580752"},{"@type":"NRID","@value":"9000403580473"},{"@type":"NRID","@value":"9000403581767"},{"@type":"NRID","@value":"9000399545109"},{"@type":"NRID","@value":"9000398407746"},{"@type":"NRID","@value":"9000398407878"},{"@type":"NRID","@value":"9000403582229"},{"@type":"NRID","@value":"9000403044960"},{"@type":"NRID","@value":"9000403582234"},{"@type":"NRID","@value":"9000403581891"},{"@type":"NRID","@value":"9000403581896"},{"@type":"NRID","@value":"9000409987137"},{"@type":"NRID","@value":"9000256436839"},{"@type":"NRID","@value":"9000010034340"},{"@type":"NRID","@value":"9000403581763"},{"@type":"NRID","@value":"9000255830421"},{"@type":"NRID","@value":"9000256436339"},{"@type":"NRID","@value":"9000403582197"},{"@type":"NRID","@value":"9000403582242"},{"@type":"NRID","@value":"9000256435772"},{"@type":"NRID","@value":"9000392826785"},{"@type":"NRID","@value":"9000403582192"},{"@type":"NRID","@value":"9000403582255"},{"@type":"NRID","@value":"9000256436367"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/read0072313"}],"foaf:name":[{"@language":"en","@value":"Kodama, Jun-ichi"},{"@language":"ja","@value":"児玉, 淳一"},{"@language":"ja-Kana","@value":"コダマ, ジュンイチ"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Hokkaido University"},{"@language":"ja","@value":"北海道大学"}]},{"@id":"https://cir.nii.ac.jp/crid/1070303321522191237","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Deguchi, Gota"},{"@language":"ja","@value":"出口, 剛太"},{"@language":"ja-Kana","@value":"デグチ, ゴウタ"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Mineral Resources Innovation Networks, NPO"},{"@language":"ja","@value":"特定非営利活動法人地下資源イノベーションネットワーク"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"20452322"}],"prism:publicationName":[{"@language":"en","@value":"Scientific Reports"}],"dc:publisher":[{"@value":"Springer"}],"prism:publicationDate":"2024-10-26","prism:volume":"14","prism:startingPage":"25551"},"dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International","© The Author(s) 2024"],"foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Energy","dc:title":"Energy"},{"@id":"https://cir.nii.ac.jp/all?q=Energy%20science%20and%20technology","dc:title":"Energy science and technology"},{"@id":"https://cir.nii.ac.jp/all?q=Fossil%20fuels","dc:title":"Fossil fuels"}],"dcterms:subject":[{"subjectScheme":"Other","notation":[{"@language":"en","@value":"Energy"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"Energy science and technology"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"Fossil fuels"}]}],"project":[{"@id":"https://cir.nii.ac.jp/crid/1040291932583770240","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"22K05005"},{"@type":"JGN","@value":"JP22K05005"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K05005/"}],"notation":[{"@language":"ja","@value":"水素サプライチェーン構築を目指した低品位石炭資源採掘-CO2貯留システムの開発"},{"@language":"en","@value":"Development of extraction of low-grade coal resource and CO2 storage system for Hydrogen supply chain"}]},{"@id":"https://cir.nii.ac.jp/crid/1860303321522191232","@type":"Project","notation":[{"@language":"en","@value":"Module-Research Program"}]}],"dataSourceIdentifier":[{"@type":"IRDB","@value":"oai:irdb.nii.ac.jp:01211:0006595695"}]}