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Title: 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:
 [1];  [2];  [1]
  1. (Morgantown, WV)
  2. (McMurray, PA)
Publication Date:
Research Org.:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
OSTI Identifier:
868562
Patent Number(s):
US 5167676
Assignee:
United States of America as represented by United States (Washington, DC) NETL
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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