skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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:
 [1];  [2];  [3]
  1. Morgantown, WV
  2. Fairmont, WV
  3. 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}
}

Patent:

Save / Share: