Tareq Abu Hamed
The Dead Sea and Arava Science Center, Tamar Regional Council, Israel \ Arava Institute for Environmental Studies, Hevel Eilot, Israel
Bara Wahbeh
Ben-Gurion University of the Negev, Sde-Boqer, Israel
Roni Kasher
Ben-Gurion University of the Negev, Sde-Boqer, Israel
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http://dx.doi.org/10.3384/ecp110571143Published in: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden
Linköping Electronic Conference Proceedings 57:2, p. 1143-1149
Published: 2011-11-03
ISBN: 978-91-7393-070-3
ISSN: 1650-3686 (print), 1650-3740 (online)
Hydrolysis of boron is investigated as a part of a boron/boron oxide solar; water-splitting; thermochemical cycle. Boron was hydrolysed and boron oxide was gasified with steam in a tubular reactor. The influence of the reactor temperature and time on hydrogen conversion was measured at furnace set point temperatures of 873; 973 and 1073 K. The hydrogen production rate was measured by inline gas chromatography. The products were analyzed by X-ray diffraction. The average hydrogen production efficiency of 92% was obtained for both 973 and 1073 K. The formation of a boric acid layer on the reactor walls was attributed to the gasification of the boron oxide. The X-ray analysis shows 100% conversion of the boron to boron oxide and boric acid.
