Radiation-heated fluidized-bed reactor

Details Radiation-heated fluidized-bed reactor Radiation-heated fluidized-bed reactor

2006-04-18

2006-04-18

Neckel, Alexa D. (Department: 1764)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

C422S146000, C422S198000, C165S177000

Reexamination Certificate

active

07029632

ABSTRACT:
A radiation-heated fluidized-bed reactor and a process for producing high-purity polycrystalline silicon by using this reactor are provided. In this reactor, a heater device (14) is a radiation source for thermal radiation which is arranged outside the inner reactor tube and as a cylinder around the heater zone, without being in direct contact with the inner reactor tube. The inner reactor tube is designed in such a manner that it uses thermal radiation to heat the silicon particles in the heating zone to a temperature which is such that the reaction temperature is established in the reaction zone.

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D. Kunii, O. Levenspiel, Chapter 3, “Fluidization Engineering”, 2ndedition, 1991, Butterworth-Heinemann.

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