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Title: Mitigating the effect of siloxanes on internal combustion engines using landfill gasses

Patent ·
OSTI ID:1117855

A waste gas combustion method that includes providing a combustible fuel source, in which the combustible fuel source is composed of at least methane and siloxane gas. A sodium source or magnesium source is mixed with the combustible fuel source. Combustion of the siloxane gas of the combustible fuel source produces a silicon containing product. The sodium source or magnesium source reacts with the silicon containing product to provide a sodium containing glass or sodium containing silicate, or a magnesium containing silicate. By producing the sodium containing glass or sodium containing silicate, or the magnesium containing silicate, or magnesium source for precipitating particulate silica instead of hard coating, the method may reduce or eliminate the formation of silica deposits within the combustion chamber and the exhaust components of the internal combustion engine.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
8,631,770
Application Number:
13/021,375
OSTI ID:
1117855
Resource Relation:
Patent File Date: 2011 Feb 04
Country of Publication:
United States
Language:
English

References (10)

Method for catalyzing fuel for powering internal combustion engines patent July 1991
Process and apparatus for purification of landfill gases patent October 1991
Method of treating the products of combustion of landfill gas patent September 1995
Method and system for oxidation of volatile organic compounds using an internal combustion engine patent December 1997
Siloxane filter for O2 sensor for bio-gas engine patent April 2002
Methane recovery process patent April 2006
Removing siloxanes from a gas using a segmented filtration system customized to the gas composition patent September 2007
Removing siloxanes from a gas stream using a mineral based adsorption media patent-application January 2006
Anaerobic Production of Hydrogen and Other Chemical Products patent-application December 2008
New Techn0logy for Removal of Siloxanes in Digester gas Results in Lower Maintenance Costs and air Quality Benefits in Power Generation Equipment journal January 2003