Method and system for the removal of oxides of nitrogen and sulfur from combustion processes

Title: Method and system for the removal of oxides of nitrogen and sulfur from combustion processes

Full Record
Other Related Research

Abstract

A process for removing oxide contaminants from combustion gas, and employing a solid electrolyte reactor, includes: (a) flowing the combustion gas into a zone containing a solid electrolyte and applying a voltage and at elevated temperature to thereby separate oxygen via the solid electrolyte, (b) removing oxygen from that zone in a first stream and removing hot effluent gas from that zone in a second stream, the effluent gas containing contaminant, (c) and pre-heating the combustion gas flowing to that zone by passing it in heat exchange relation with the hot effluent gas.

Inventors:

Walsh, John V ^[1]

Glendora, CA

Issue Date:: 1987-12-15

OSTI Identifier:: 866446

Patent Number(s):: 4713152

Application Number:: 07/023,724

Assignee:: VSM Associates, Inc. (Covina, CA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

Show more

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D53/326 - {in electrochemical cells}

Show less

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; removal; oxides; nitrogen; sulfur; combustion; processes; process; removing; oxide; contaminants; gas; employing; solid; electrolyte; reactor; flowing; zone; containing; applying; voltage; elevated; temperature; separate; oxygen; via; stream; hot; effluent; contaminant; pre-heating; passing; heat; exchange; relation; zone containing; combustion process; gas containing; gas flow; heat exchange; elevated temperature; solid electrolyte; combustion gas; gas flowing; effluent gas; exchange relation; combustion processes; removing oxide; removing oxygen; separate oxygen; moving hot; rate oxygen; /205/204/

Citation Formats


                    Walsh, John V. Method and system for the removal of oxides of nitrogen and sulfur from combustion processes.  United States: N. p., 1987. 
        Web.

Copy to clipboard


                    Walsh, John V. Method and system for the removal of oxides of nitrogen and sulfur from combustion processes.  United States.

Copy to clipboard


                    Walsh, John V. Tue .  
        "Method and system for the removal of oxides of nitrogen and sulfur from combustion processes".  United States.  https://www.osti.gov/servlets/purl/866446.

Copy to clipboard


                    
@article{osti_866446,

  title        = {Method and system for the removal of oxides of nitrogen and sulfur from combustion processes},

  author       = {Walsh, John V},

  abstractNote = {A process for removing oxide contaminants from combustion gas, and employing a solid electrolyte reactor, includes: (a) flowing the combustion gas into a zone containing a solid electrolyte and applying a voltage and at elevated temperature to thereby separate oxygen via the solid electrolyte, (b) removing oxygen from that zone in a first stream and removing hot effluent gas from that zone in a second stream, the effluent gas containing contaminant, (c) and pre-heating the combustion gas flowing to that zone by passing it in heat exchange relation with the hot effluent gas.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1987},

  month        = {12}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Regenerative process and system for the simultaneous removal of particulates and the oxides of sulfur and nitrogen from a gas stream

Patent Cohen, Mitchell R [Troy, NY]; Gal, Eli [Lititz, PA]

A process and system for simultaneously removing from a gaseous mixture, sulfur oxides by means of a solid sulfur oxide acceptor on a porous carrier, nitrogen oxides by means of ammonia gas and particulate matter by means of filtration and for the regeneration of loaded solid sulfur oxide acceptor. Finely-divided solid sulfur oxide acceptor is entrained in a gaseous mixture to deplete sulfur oxides from the gaseous mixture, the finely-divided solid sulfur oxide acceptor being dispersed on a porous carrier material having a particle size up to about 200 microns. In the process, the gaseous mixture is optionally pre-filtered tomore »« less
Full Text Available
Simultaneous removal of nitrogen oxides and sulfur oxides from combustion gases

Patent Clay, David T [Longview, WA]; Lynn, Scott [Walnut Creek, CA]

A process for the simultaneous removal of sulfur oxides and nitrogen oxides from power plant stack gases comprising contacting the stack gases with a supported iron oxide catalyst/absorbent in the presence of sufficient reducing agent selected from the group consisting of carbon monoxide, hydrogen, and mixtures thereof, to provide a net reducing atmosphere in the SO.sub.x /NO.sub.x removal zone. The sulfur oxides are removed by absorption substantially as iron sulfide, and nitrogen oxides are removed by catalytic reduction to nitrogen and ammonia. The spent iron oxide catalyst/absorbent is regenerated by oxidation and is recycled to the contacting zone. Sulfur dioxidemore »« less
Full Text Available
Efficient volatile metal removal from low rank coal in gasification, combustion, and processing systems and methods

Patent Bland, Alan E.; Sellakumar, Kumar Muthusami; Newcomer, Jesse D.

Efficient coal pre-processing systems (69) integrated with gasification, oxy-combustion, and power plant systems include a drying chamber (28), a volatile metal removal chamber (30), recirculated gases, including recycled carbon dioxide (21), nitrogen (6), and gaseous exhaust (60) for increasing the efficiencies and lowering emissions in various coal processing systems.
Full Text Available
Method for removing sulfur oxide from waste gases and recovering elemental sulfur

Patent Moore, Raymond H [Richland, WA]

A continuous catalytic fused salt extraction process is described for removing sulfur oxides from gaseous streams. The gaseous stream is contacted with a molten potassium sulfate salt mixture having a dissolved catalyst to oxidize sulfur dioxide to sulfur trioxide and molten potassium normal sulfate to solvate the sulfur trioxide to remove the sulfur trioxide from the gaseous stream. A portion of the sulfur trioxide loaded salt mixture is then dissociated to produce sulfur trioxide gas and thereby regenerate potassium normal sulfate. The evolved sulfur trioxide is reacted with hydrogen sulfide as in a Claus reactor to produce elemental sulfur. Themore »« less
Full Text Available
Material and system for catalytic reduction of nitrogen oxide in an exhaust stream of a combustion process

Patent Gardner, Timothy J [Albuquerque, NM]; Lott, Stephen E [Edgewood, NM]; Lockwood, Steven J [Albuquerque, NM]; ...

A catalytic material of activated hydrous metal oxide doped with platinum, palladium, or a combination of these, and optionally containing an alkali or alkaline earth metal, that is effective for NO.sub.X reduction in an oxidizing exhaust stream from a combustion process is disclosed. A device for reduction of nitrogen oxides in an exhaust stream, particularly an automotive exhaust stream, the device having a substrate coated with the activated noble-metal doped hydrous metal oxide of the invention is also provided.
Full Text Available

Similar Records