EDN: GOIGJW
Authors & Affiliations
Askhadullin S.R.1, Osipov A.A.2, Yagodkin M.I.2
1 Obninsk Institute for Nuclear Power Engineering, National Research Nuclear University “MEPhI”, Obninsk, Russia
2 A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia
Askhadullin S.R. – Post-graduate Student. Contacts: 1, Studgorodok, Obninsk, Kaluga region, Russia, 249040. Tel.: +7 (910) 546-56-82; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Osipov A.A. – Senior Researcher, Cand. Sci. (Tech.).
Yagodkin M.I. – Thermal Engineer.
Abstract
The article is devoted to hydrogen synthesis by the method of Al oxidation in Sn melt with water vapor. This method of hydrogen production has the following advantages:
– safety (there is no release of “explosive gas” as in the electrolysis of water);
– “controllability” of synthesis (the possibility of suspending the process and resuming it by turning off/on the heating of the units of the installation and the supply of the reagent gas mixture);
– concomitant production of a valuable “by-product” – airgel (aluminum oxide hydrate), which exhibits sorption properties to inorganic compounds, which also has unique heat-insulating and other properties.
A plant has been assembled that makes it possible to synthesize hydrogen from a binary Sn-Al melt by oxidizing the latter with water vapor supplied under the melt level by bubbling an Ar-H2O gas mixture. The calculations were performed using the empirical temperature dependences of the Al solubility in the Sn melt. The solubility values of Al in the Sn melt are taken from the state diagram of the Sn-Al system.
In the course of this work, the following parameters were varied: melt temperature, Al content in the melt, carrier gas flow rate. The following parameters turned out to be the most optimal for hydrogen synthesis in terms of generation stability and high yield:
– melt temperature – 500 °C;
– gas mixture consumption (argon-steam) – 1.8 l/h;
– humidifier temperature – 60 °C;
– the aluminum content in the binary melt Sn-Al – 0.07 % wt.
The maximum yield of hydrogen using these parameters was 7.07 liters during the generation period of 13 days.
Keywords
hydrogen, binary melt, tin, aluminum, hydrogen generation, thermochemical decomposition of water, water vapor, binary melt oxidation
Article Text (PDF, in Russian)
References
- Aminov R.Z., Bayramov A.N. Kombinirovaniye vodorodnyh energeticheskyh tsyklov s atomnymi elektrostantsyyami [Combining hydrogen energy cycles with nuclear power plants]. Moscow, Nauka Publ., 2016. Pp. 14–30.
- Sheindlin A.E., Zhuk A.Z. Kontseptsyya alumovodorodnoy energetiki [The concept of hydrogen-aluminum power engineering]. Rossiyskiy himicheskiy zhurnal – Russian chemical journal, 2006, vol. L, no. 6, pp. 105–108.
- Tereshchuk V.S. Primenenie energetichesky aktivnyh metallov i vodoroda [Application of energetically active metals and hydrogen]. Moscow, Innovatsionnoye mashinostroeniye Publ., 2019. Pp. 10–18.
- Shkolnikov E.I., Yakushko S.A., Tarasova S.A. Issledovanie raboty aalumovodorodnogo mikrogeneratora vodoroda dlya kompaktnyh istochnikov pitaniya [Investigation of the operation of an aluminum-water hydrogen microgenerator for compact power sources]. Elektrohimicheskaya energetika – Electrochemical power engineering, 2008, vol. 8, no. 2, pp. 86–91.
- Tarasov B.P., Lototsky M.V. Vodorod dlya proizvodstva energii: Problemy i perspektivy. [Hydrogen for energy production: Problems and prospects]. Alternativnaya energetika i ecologiya – Alternative energy and ecology, 2006, no. 8, pp. 72–90.
- Dmitriev A.L., Prokhorov N.S. Perspektivy primeneniya vodoroda v kachestve energonositelya [Prospects of using hydrogen as an energy carrier]. Himicheskaya promyshlennost – Chemical industry, 2003, vol. 80, no. 10, pp. 27–29.
- Legasov V.A. Metody polucheniya vodoroda putyom razlozheniya vody. Atomno-vodorodnaya energetika i tehnologiya [Methods for obtaining hydrogen by decomposing water. Atomic-hydrogen power engineering and technology]. Moscow, Atomizdat Publ., 1978. Issue 1, pp. 37–61.
- Milinchuk V.K., Shilina A.S., Ananyeva O.A., Kunitsyna T.E., Pasevich O.F., Laricheva T.E. Issledovanite ekologicheski bezopasnyh, energosberegayuschih sposobov polucheniya vodoroda himicheskim raslozheniem vody [Research of environmentally safe, energy-saving methods for obtaining hydrogen by chemical decomposition of water]. Alternativnaya energetika i ecologiya – Alternative energy and ecology, 2012, no. 4, pp. 49–54.
- Gurvich L.V. Termodinamicheskiye svoystva individualnyh veschestv [Thermodynamic properties of individual substances]. Moscow, USSR Academy of Sciences Publ., 1962. 328 p.
- Askhadullin R.Sh., Osipov A.A., Skobeev D.A. Zhidkometallicheskaya tehnologiya sinteza anizotropnogo nanostrukturnogo aerogela AlOOH [Liquid metal technology for the synthesis of anisotropic nanostructured aerogel AlOOH]. Izvestiya vuzov. Yadernaya energetika, 2016, no. 4, pp. 91–101.
- Bondarenko G.G., Kabanova T.A., Rybalko V.V. Osnovy materialovedeniya [Fundamentals of materials science]. Moscow, BINOM. Laboratoriya znaniy Publ., 2020. 760 p.
- Zakharov A.M. Diagrammy sostoyaniya dvoynyh i troynyh system [Diagrams of the state of double and triple systems]. Moscow, Metallurgiya Publ., 1990. 239 p.
- Vukalovich M.P., Rivkin S.L., Alexandrovich A.A. Tablitsy termodinamicheskih svoystv vody i vodyanogo para [Tables of thermodynamic properties of water and water vapor]. Moscow, Izd-vo standartov Publ., 1969. 80 p.
- Stolyarov B.V., Savinov I.M., Vitenberg A.G. Rukovodstvo po prakticheskim rabotam po gazovoy khromatografii. Uchebnoye posobiye. Pod red. prof. B.V. Ioffe. [Guide to practical work on gas chromatography. Textbook. Ed. Prof. B.V. Ioffe]. Leningrad, Izdatel'stvo Leningradskogo universiteta Publ.,1972. 284 p.
- Ivanov I.I., Shelemetev V.M., Askhadullin R.Sh. Investigation of the process of reducing bismuth oxide with hydrogen in relation to the technology of removing hydrogen from circuits with heavy liquid metal heat carriers. Izvestiya vuzov. Yadernaya energetika, 2019, no. 3, pp. 108–119.
UDC: 54.057
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2023, no. 2, 2:16
