Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1992-03-12
1993-03-30
Hart, Charles
Gas separation
Means within gas stream for conducting concentrate to collector
55 97, 55 99, 55320, 55387, 55474, 55523, B01D 5306
Patent
active
051980029
ABSTRACT:
A gas cleaning filter is formed in-situ within a vessel containing a fluidizable bed of granular material of a relatively large size fraction. A filter membrane provided by a porous metal or ceramic body or such a body supported a perforated screen on one side thereof is coated in-situ with a layer of the granular material from the fluidized bed by serially passing a bed-fluidizing gas stream through the bed of granular material and the membrane. The layer of granular material provides the filtering medium for the combined membrane-granular layer filter. The filter is not blinded by the granular material and provides for the removal of virtually all of the particulates from a process gas stream. The granular material can be at least partially provided by a material capable of chemically reacting with and removing sulfur compounds from the process gas stream. Low level radioactive waste containing organic material may be incinerated in a fluidized bed in communication with the described filter for removing particulates from the gaseous combustion products.
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"Cold flow studies of a novel fluidized bed emissions clean-up concept" Yang et al, Powder Tech. 63 pp. 55-68, 1990.
DeVault James
Halow John S.
Mei Joseph S.
Breeden David E.
Hamel Stephen D.
Hart Charles
Moser William R.
The United States of America as represented by the United States
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