... Chemical Reactor for the Thermal Reduction of Metal Oxides: Case Study of Zinc Oxide Dissociation ,” Chem. Eng. Sci. , 62 ( 22 ), pp. 6323 – 6333 . 10.1016/j.ces.2007.07.042 [20] Schunk , L. , Haeberling , P. , Wepf , S. , Wuillemin , D. , Meier , A. , and Steinfeld...

... mixture of various fluoride salts and dissolved zinc oxide. Electricity is supplied to the electrolyte through a pair of electrodes. The electricity enables electrolysis: gaseous zinc bubbles up at one electrode and gaseous oxygen bubbles up at the other. The two products are kept separate within...

.... , and Steinfeld , A. , 2006 , “ Co-Synthesis of H2 and ZnO by In-Situ Zn Aerosol Formation and Hydrolysis ,” AIChE J. 0001-1541 10.1002/aic.10915 , 52 ( 9 ), pp. 3297 – 3303 . Haueter , P. , Möller , S. , Palumbo , R. D. , and Steinfeld , A. , 1999 , “ The Production of Zinc...

...Michael Epstein; Gabriel Olalde; Sven Santén; Aldo Steinfeld; Christian Wieckert Based on the experimental results of a 300 kW solar chemical pilot plant for the production of zinc by carbothermal reduction of ZnO, we performed a conceptual design of a 5 MW demonstration plant and of a 30 MW...

...C. Wieckert; U. Frommherz; S. Kräupl; E. Guillot; G. Olalde; M. Epstein; S. Santén; T. Osinga; A. Steinfeld In the framework of the EU-project SOLZINC, a 300-kW solar chemical pilot plant for the production of zinc by carbothermic reduction of ZnO was experimentally demonstrated in a beam-down...

... of carbonaceous materials were screened for their use as reducing agents by means of thermogravimetric measurements. As a result, beech charcoal was chosen as the standard reducing agent. 13 07 2004 20 06 2005 chemical energy conversion solar energy concentrators carbon zinc compounds zinc...

...Stefan Kra¨upl; Aldo Steinfeld Radiation heat transfer within a solar chemical reactor for the co-production of zinc and syngas is analyzed by the Monte Carlo ray-tracing method. The reactor is treated as a 3D nonisothermal cavity-receiver lined with ZnO particles that are directly exposed...

...T. Osinga; U. Frommherz; A. Steinfeld; C. Wieckert Zinc production by solar carbothermic reduction of ZnO offers a CO 2 emission reduction by a factor of 5 vis-a`-vis the conventional fossil-fuel-based electrolytic or Imperial Smelting processes. Zinc can serve as a fuel in Zn-air fuel cells or can...

... Division, August 2000; final revision, January 2001. Associate Editor: D. M. Blake. 01 August 2000 01 January 2001 zinc solar absorber-convertors solar heating solar energy concentrators reduction (chemical) zinc compounds Concentrated solar energy can be used to drive...

...Anke Weidenkaff; Armin Reller; Aldo Steinfeld The thermal extraction of zinc from its ore willemite, Zn 2 SiO 4 , is investigated using concentrated solar energy. Experiments conducted at above 1750 K in a high-flux solar furnace yielded the products Zn(g), O 2 , and SiO 2 l . Analysis...