About: Sulfur–iodine cycle

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The sulfur–iodine cycle (S–I cycle) is a three-step thermochemical cycle used to produce hydrogen. The S–I cycle consists of three chemical reactions whose net reactant is water and whose net products are hydrogen and oxygen. All other chemicals are recycled. The S–I process requires an efficient source of heat.

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rdf:type	work yago:WikicatChemicalProcesses yago:WikicatChemicalReactions yago:ChemicalProcess113446390 yago:ChemicalReaction113447361 yago:NaturalProcess113518963 yago:PhysicalEntity100001930 yago:Process100029677 yago:WikicatInorganicReactions
rdfs:label	دورة كبريت-يود (ar) Schwefelsäure-Iod-Verfahren (de) Cycle soufre-iode (fr) Ciclo zolfo-iodio (it) Zwavel-jodiumcyclus (nl) Sulfur–iodine cycle (en) Серно-йодный цикл (ru) 硫-碘循環 (zh)
rdfs:comment	دورة كبريت-يود S–I عبارة عن دورة كيميائية حرارية مؤلفة من ثلاث خطوات معتمدة على تفاعلات أكسدة-اختزال لكل من الكبريت واليود من أجل إنتاج الهيدروجين. تحتاج هذه الطريقة إلى مصدر حراري لتأمين الطاقة اللازمة لحدوث التفاعل. يعود الفضل في اختراع هذه الدورة إلى شركة عام 1970. (ar) Das Schwefelsäure-Iod-Verfahren ist ein thermochemisches Verfahren zur Herstellung von Wasserstoff. Es besteht aus drei chemischen Reaktionen, deren Edukt Wasser und deren Produkte Wasserstoff und Sauerstoff sind. 2 H2SO4 → 2 SO2 + 2 H2O + O2 (830 °C)I2 + SO2 + 2 H2O → 2 HI + H2SO4 (120 °C)2 HI → I2 + H2 (320 °C) Die Schwefel- und Iod-Verbindungen können wiederverwendet werden, daher wird der Prozess als zyklisch bezeichnet. Dieses Verfahren ist endotherm und muss bei hohen Temperaturen durchgeführt werden, es muss also Energie in Form von Wärme zugeführt werden. (de) The sulfur–iodine cycle (S–I cycle) is a three-step thermochemical cycle used to produce hydrogen. The S–I cycle consists of three chemical reactions whose net reactant is water and whose net products are hydrogen and oxygen. All other chemicals are recycled. The S–I process requires an efficient source of heat. (en) Il ciclo zolfo-iodio (ciclo S-I) riguarda una serie di processi termochimici utilizzati per la produzione di idrogeno. Il ciclo S-I consiste di tre reazioni chimiche nelle quali il reagente principale è l'acqua e i prodotti finali sono l'idrogeno e l'ossigeno. Gli altri agenti chimici vengono riciclati. Il processo S-I richiede una efficiente fonte di calore. (it) Серно-йодный цикл (цикл S–I) — трехступенчатый используемый для производства водорода. Цикл S–I состоит из трех химических реакций, чистым реагентом которых является вода, а чистыми продуктами — водород и кислород. Все остальные химические вещества могут повторно использоваться в цикле. Процесс S – I требует эффективного источника тепла. (ru) 硫-碘循环（S-I 循环）是用于生产氢气的三步热化学循环。 S-I 循环由三个化学反应组成，其净反应物是水，净产物是氢和氧。所有其他化学品都被回收利用。 S-I 过程需要有效的热源。目前日本正在研究基于硫-碘循环的制氢技术。具体反应过程如图： (zh) Le cycle iode-soufre (cycle IS ou S-I en anglais) est une série de processus thermochimiques utilisée pour la production d'hydrogène. Il consiste en trois réactions chimiques dont le réactif net est l'eau et dont les produits nets sont de l'hydrogène et de l'oxygène. I2 + SO2 + 2 H2O → 2 HI + H2SO4 (120 °C) (Réaction 1)2 H2SO4 → 2 SO2 + 2 H2O + O2 (830 °C) (Réaction 2)2 HI → I2 + H2 (320 °C) (Réaction 3) (fr) De zwavel-jodiumcyclus is een thermochemisch proces om waterstofgas te bereiden. De cyclus voor waterstofproductie bestaat uit drie chemische reacties, die globaal gezien waterstofgas en zuurstofgas opleveren uit water. * De eerste reactie, ook wel de Bunsen-reactie genoemd, verloopt bij 120°C en is exotherm: Het reactieproduct is een mengsel van water, zwavelzuur, di-jood en waterstofjodide, dat uit twee niet-mengbare vloeistoffasen bestaat; een die rijk is aan zwavelzuur en een die rijk is aan HI en I2. Deze worden gescheiden en afzonderlijk behandeld in de zwavelzuursectie en de HI-sectie: (nl)
foaf:depiction
dcterms:subject	Hydrogen production Chemical reactions
Wikipage page ID	2086689 (xsd:integer)
Wikipage revision ID	1119876807 (xsd:integer)
Link from a Wikipage to another Wikipage	Catalyst Sandia National Laboratories Electrolysis of water Thermal efficiency Process heat Hydrogen production Hydrocarbons Hydrogen Hydrogen economy Hydroiodic acid Nuclear reactor physics Chemical reaction Generation IV reactor Endothermic General Atomics Concentrated solar power Condensation Continuous production Copper–chlorine cycle Silicon carbide Silicon nitride Pressurized water reactor Water (molecule) District heating Heat engine Heat of combustion Iron oxide cycle Oxygen Steam reforming Iodine Hybrid sulfur cycle Hydrogen production Thermochemical cycle Chemical reactions Sulfur dbr:Sulfur_dioxide Sulfuric acid Cogeneration High-temperature electrolysis High-temperature gas reactor Distillation Bunsen reaction Exothermic Idaho National Laboratory Cerium(IV) oxide–cerium(III) oxide cycle Waste heat Commissariat à l'Énergie Atomique Zinc–zinc oxide cycle Mullite Scalability Superalloys High Temperature Test Reactor VHTR Thermal power plant
Link from a Wikipage to an external page	http://www.osti.gov/bridge/servlets/purl/821808-K6FjPq/native/821808.pdf https://web.archive.org/web/20060213052703/http:/www.aspentech.com/publication_files/TP51.pdf http://www.jstage.jst.go.jp/article/jnst/44/3/477/_pdf http://www.mpr.com/news-and-publications/newsletters/profile9-spring2003.pdf
sameAs	Sulfur–iodine cycle Sulfur–iodine cycle Sulfur–iodine cycle Sulfur–iodine cycle Sulfur–iodine cycle Sulfur–iodine cycle Sulfur–iodine cycle Sulfur–iodine cycle Sulfur–iodine cycle Sulfur–iodine cycle Sulfur–iodine cycle

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