Solare Herstellung von Kalk

• Unité de recherche: OFEN
• Numéro de projet: 38329

Mots-clé (Allemand)

TP0032;Industrielle Solarenergienutzung

Description succincte (Allemand)

Solare Herstellung von Kalk

Publications / Résultats (Anglais)

A novel indirect-heated solar reactor for the solar production of lime (CaO) was designed, built and tested in a solar furnace at PSI. This 10-kW reactor is operated in continuous mode and consists of a tilted rotary kiln with a specially designed high-temperature resistant blackbody absorber made from SiC and a preheating chamberwhere the small-grained limestone particles are preheated almost to the reaction temperature. The transition to an indirect-heated reactor including additional design changes was successful: (1) With the improved particle feeding system, the maximum CaO production rate was increased from 1.5 kg/hr to about 4 kg/hr; (2) The heatlosses were significantly reduced, and consequently the reactor efficiency was increased to more than 30% with a maximum near 35%, while still maintaining a high degree of calcination exceeding 98%; (3) The SiC absorber withstood thermal shocks at temperatures up to 1600 K.

Auftragnehmer/Contractant/Contraente/Contractor:


Autorschaft/Auteurs/Autori/Authors:
Meier,Anton
Bonaldi,E.

Documents annexés

• Solare Herstellung von Kalk (Solar Production of Lime) - Jahresbericht 2002 [PDF] 343 kB