Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Reexamination Certificate
2008-04-15
2008-04-15
Vanoy, Timothy C. (Department: 1793)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
C431S004000, C431S008000, C110S203000, C110S218000, C110S342000, C110S345000, C044S605000, C044S621000
Reexamination Certificate
active
07357903
ABSTRACT:
An organically complexed nanocatalyst composition is applied to or mixed with coal prior to or upon introducing the coal into a coal burner in order to catalyze the removal of coal nitrogen from the coal and its conversion into nitrogen gas prior to combustion of the coal. This process leads to reduced NOx production during coal combustion. The nanocatalyst compositions include a nanoparticle catalyst that is made using a dispersing agent that can bond with the catalyst atoms. The dispersing agent forms stable, dispersed, nano-sized catalyst particles. The catalyst composition can be formed as a stable suspension to facilitate storage, transportation and application of the catalyst nanoparticles to a coal material. The catalyst composition can be applied before or after pulverizing the coal material or it may be injected directly into the coal burner together with pulverized coal.
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Black Stephanie E.
Harding N. Stanley
Hare Jeffrey J.
Johnson Kenneth R.
Parasher Sukesh
Headwaters Heavy Oil, LLC
Vanoy Timothy C.
Workman Nydegger
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