Apparatus and method for removing particulate deposits from high temperature filters
Abstract
A combustion of a fuel-air mixture is used to provide a high-temperature and high-pressure pulse of gaseous combustion products for the back-flush cleaning of ceramic filter elements contained in a barrier filter system and utilized to separate particulates from particulate-laden process gases at high temperature and high pressure. The volume of gaseous combustion products provided by the combustion of the fuel-air mixture is preferably divided into a plurality of streams each passing through a sonic orifice and conveyed to the open end of each filter element as a high pressure pulse which passes through the filter elements and dislodges dust cake supported on a surface of the filter element.
- Inventors:
-
- Morgantown, WV
- McMurray, PA
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- OSTI Identifier:
- 868562
- Patent Number(s):
- 5167676
- 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
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- apparatus; method; removing; particulate; deposits; temperature; filters; combustion; fuel-air; mixture; provide; high-temperature; high-pressure; pulse; gaseous; products; back-flush; cleaning; ceramic; filter; elements; contained; barrier; utilized; separate; particulates; particulate-laden; process; gases; pressure; volume; provided; preferably; divided; plurality; streams; passing; sonic; orifice; conveyed; element; passes; dislodges; dust; cake; supported; surface; removing particulate; gaseous combustion; filter elements; process gas; filter element; combustion products; air mixture; fuel-air mixture; combustion product; ceramic filter; pressure pulse; particulate deposits; elements contained; separate particulate; /95/55/60/
Citation Formats
Nakaishi, Curtis V, Holcombe, Norman T, and Micheli, Paul L. Apparatus and method for removing particulate deposits from high temperature filters. United States: N. p., 1992.
Web.
Nakaishi, Curtis V, Holcombe, Norman T, & Micheli, Paul L. Apparatus and method for removing particulate deposits from high temperature filters. United States.
Nakaishi, Curtis V, Holcombe, Norman T, and Micheli, Paul L. Wed .
"Apparatus and method for removing particulate deposits from high temperature filters". United States. https://www.osti.gov/servlets/purl/868562.
@article{osti_868562,
title = {Apparatus and method for removing particulate deposits from high temperature filters},
author = {Nakaishi, Curtis V and Holcombe, Norman T and Micheli, Paul L},
abstractNote = {A combustion of a fuel-air mixture is used to provide a high-temperature and high-pressure pulse of gaseous combustion products for the back-flush cleaning of ceramic filter elements contained in a barrier filter system and utilized to separate particulates from particulate-laden process gases at high temperature and high pressure. The volume of gaseous combustion products provided by the combustion of the fuel-air mixture is preferably divided into a plurality of streams each passing through a sonic orifice and conveyed to the open end of each filter element as a high pressure pulse which passes through the filter elements and dislodges dust cake supported on a surface of the filter element.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}
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