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Title: Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop

Abstract

Methods for generating and applying coatings to filters with porous material in order to reduce large pressure drop increases as material accumulates in a filter, as well as the filter exhibiting reduced and/or more uniform pressure drop. The filter can be a diesel particulate trap for removing particulate matter such as soot from the exhaust of a diesel engine. Porous material such as ash is loaded on the surface of the substrate or filter walls, such as by coating, depositing, distributing or layering the porous material along the channel walls of the filter in an amount effective for minimizing or preventing depth filtration during use of the filter. Efficient filtration at acceptable flow rates is achieved.

Inventors:
;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1164034
Patent Number(s):
8,889,221
Application Number:
13/915,014
Assignee:
Massachusetts Institute of Technology (Cambridge, MA)
DOE Contract Number:  
AC0500OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 36 MATERIALS SCIENCE

Citation Formats

Sappok, Alexander, and Wong, Victor. Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop. United States: N. p., 2014. Web.
Sappok, Alexander, & Wong, Victor. Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop. United States.
Sappok, Alexander, and Wong, Victor. Tue . "Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop". United States. https://www.osti.gov/servlets/purl/1164034.
@article{osti_1164034,
title = {Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop},
author = {Sappok, Alexander and Wong, Victor},
abstractNote = {Methods for generating and applying coatings to filters with porous material in order to reduce large pressure drop increases as material accumulates in a filter, as well as the filter exhibiting reduced and/or more uniform pressure drop. The filter can be a diesel particulate trap for removing particulate matter such as soot from the exhaust of a diesel engine. Porous material such as ash is loaded on the surface of the substrate or filter walls, such as by coating, depositing, distributing or layering the porous material along the channel walls of the filter in an amount effective for minimizing or preventing depth filtration during use of the filter. Efficient filtration at acceptable flow rates is achieved.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {11}
}

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Works referenced in this record:

A Novel Accelerated Aging System to Study Lubricant Additive Effects on Diesel Aftertreatment System Degradation
journal, June 2008

  • Sappok, Alexander G.; Beauboeuf, Daniel; Wong, Victor W.
  • SAE International Journal of Fuels and Lubricants, Vol. 1, Issue 1
  • DOI: 10.4271/2008-01-1549

Lubricant-Derived Ash Properties and Their Effects on Diesel Particulate Filter Pressure-Drop Performance
journal, November 2010

  • Sappok, Alexander; Wong, Victor W.
  • Journal of Engineering for Gas Turbines and Power, Vol. 133, Issue 3
  • DOI: 10.1115/1.4001944

Study on Wall Pore Structure for Next Generation Diesel Particulate Filter
conference, April 2008

  • Mizuno, Yukio; Miyairi, Yukio; Katsube, Fumio
  • SAE World Congress & Exhibition, SAE Technical Paper Series
  • DOI: 10.4271/2008-01-0618

Ash Effects on Diesel Particulate Filter Pressure Drop Sensitivity to Soot and Implications for Regeneration Frequency and DPF Control
journal, April 2010

  • Sappok, Alexander; Wong, Victor W.
  • SAE International Journal of Fuels and Lubricants, Vol. 3, Issue 1
  • DOI: 10.4271/2010-01-0811

Characteristics and Effects of Ash Accumulation on Diesel Particulate Filter Performance: Rapidly Aged and Field Aged Results
conference, April 2009

  • Sappok, Alexander; Santiago, Michael; Vianna, Tomas
  • SAE World Congress & Exhibition, SAE Technical Paper Series
  • DOI: 10.4271/2009-01-1086

Characteristics and Effects of Lubricant Additive Chemistry on Ash Properties Impacting Diesel Particulate Filter Service Life
journal, April 2010

  • Sappok, Alexander; Rodriguez, Romina; Wong, Victor
  • SAE International Journal of Fuels and Lubricants, Vol. 3, Issue 1
  • DOI: 10.4271/2010-01-1213