Gas stream clean-up filter and method for forming same
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.
- Inventors:
-
- Morgantown, WV
- Fairmont, WV
- Waynesburg, PA
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- OSTI Identifier:
- 868710
- Patent Number(s):
- 5198002
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- gas; stream; clean-up; filter; method; forming; cleaning; formed; in-situ; vessel; containing; fluidizable; bed; granular; material; relatively; size; fraction; membrane; provided; porous; metal; ceramic; supported; perforated; screen; coated; layer; fluidized; serially; passing; bed-fluidizing; provides; filtering; medium; combined; membrane-granular; blinded; removal; virtually; particulates; process; partially; capable; chemically; reacting; removing; sulfur; compounds; level; radioactive; waste; organic; incinerated; communication; described; gaseous; combustion; products; removing particulate; size fraction; chemically reacting; gaseous combustion; fluidizing gas; chemically react; containing organic; removing sulfur; porous metal; process gas; combustion products; fluidized bed; gas stream; radioactive waste; granular material; organic material; sulfur compounds; vessel containing; combustion product; level radioactive; material capable; waste containing; material provides; gas clean; sulfur compound; bed filter; /95/55/422/
Citation Formats
Mei, Joseph S, DeVault, James, and Halow, John S. Gas stream clean-up filter and method for forming same. United States: N. p., 1993.
Web.
Mei, Joseph S, DeVault, James, & Halow, John S. Gas stream clean-up filter and method for forming same. United States.
Mei, Joseph S, DeVault, James, and Halow, John S. Fri .
"Gas stream clean-up filter and method for forming same". United States. https://www.osti.gov/servlets/purl/868710.
@article{osti_868710,
title = {Gas stream clean-up filter and method for forming same},
author = {Mei, Joseph S and DeVault, James and Halow, John S},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}
Works referenced in this record:
Cold flow studies of a novel fluidized bed emissions clean-up concept
journal, October 1990
- Yang, W. C.; Newby, R. A.; Lippert, T. E.
- Powder Technology, Vol. 63, Issue 1