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Title: Method for reducing NOx during combustion of coal in a burner

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.

Inventors:
 [1];  [2];  [3];  [4];  [5];  [6]
  1. Cranbury, NJ
  2. Lawrenceville, NJ
  3. Provo, UT
  4. North Salt Lake, UT
  5. Sandy, UT
  6. Highland, UT
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
985660
Patent Number(s):
7357903
Application Number:
11/129,833
Assignee:
Headwaters Heavy Oil, LLC (South Jordan, UT)
Patent Classifications (CPCs):
A - HUMAN NECESSITIES A24 - TOBACCO A24B - MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
FG26-02NT41618
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT

Citation Formats

Zhou, Bing, Parasher, Sukesh, Hare, Jeffrey J, Harding, N Stanley, Black, Stephanie E, and Johnson, Kenneth R. Method for reducing NOx during combustion of coal in a burner. United States: N. p., 2008. Web.
Zhou, Bing, Parasher, Sukesh, Hare, Jeffrey J, Harding, N Stanley, Black, Stephanie E, & Johnson, Kenneth R. Method for reducing NOx during combustion of coal in a burner. United States.
Zhou, Bing, Parasher, Sukesh, Hare, Jeffrey J, Harding, N Stanley, Black, Stephanie E, and Johnson, Kenneth R. Tue . "Method for reducing NOx during combustion of coal in a burner". United States. https://www.osti.gov/servlets/purl/985660.
@article{osti_985660,
title = {Method for reducing NOx during combustion of coal in a burner},
author = {Zhou, Bing and Parasher, Sukesh and Hare, Jeffrey J and Harding, N Stanley and Black, Stephanie E and Johnson, Kenneth R},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2008},
month = {4}
}

Works referenced in this record:

Selective conversion of coal nitrogen to N2 with iron
journal, November 1993


Novel synthesis of highly active Pt/C cathode electrocatalyst for direct methanol fuel cell
journal, January 2003


Remarkable Formation of N 2 from a Chinese Lignite during Coal Pyrolysis
journal, January 1996


Method for Supporting Platinum on Single-Walled Carbon Nanotubes for a Selective Hydrogenation Catalyst
journal, March 2001


Nitrogen removal during atmospheric-pressure pyrolysis of brown coal with iron
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Highly active iron catalysts from ferric chloride for the steam gasification of brown coal
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Carbon nanotubes as support for cathode catalyst of a direct methanol fuel cell
journal, April 2002


Formation of Nitrogen-Containing Compounds during Slow Pyrolysis and Oxidation of Petroleum Coke
journal, September 1997


Spectroscopic studies of coal maceral depolymerization effected by an iron-based catalyst
journal, July 1992


Role of Iron Catalyst in Fate of Fuel Nitrogen during Coal Pyrolysis
journal, January 1996


Shape-Controlled Synthesis of Colloidal Platinum Nanoparticles
journal, June 1996


Preparation and Characterization of Multiwalled Carbon Nanotube-Supported Platinum for Cathode Catalysts of Direct Methanol Fuel Cells
journal, July 2003