Siemens Energy, Inc.

Guild Associates, Inc.

US Government As Represented by the Secretary of the Army

Battelle Memorial Institute

Michael J Knapke

Joseph Anthony Rossin

Anatoly Sobolevskiy

Gregory William Peterson

Michael A Pompeii

Daniel Moeller

David L Church

Henry C Berns, Jr

Mark Noltimier

Rachel L Rossin

Michael John Mitariten

William B Feaver

Roy S Brown

Wayne Ballantyne

Natalie L Pomerantz

Ryan Ballantyne

William K Clark

Michael Boruch

Bruce Corso

Nicole Puckace

Jeffery Stephen Hoene

Joseph Hunt

Neil Kennihan

Erin Anderson

Craig LaMoy

Robert Kinter

Chris Ritchey

Richard Warder, Jr

A filter is provided for removing contaminants from a gas flow (e.g., an air flow). Multiple panel filters are arranged in a filter housing. The panel filters are arranged parallel or near-parallel to a main gas flow direction and spaced apart to define elongated gas flow channels between adjacent panel filters, each elongated gas flow channel extending generally in the gas flow direction. The elongated gas flow channels include inlet channel(s) and outlet channel(a) arranged in an alternating manner, the inlet channel(s) configured receiving the gas flow at the inlet end and the outlet channel(s) outputting a filtered gas flow from the outlet end. Gas flow redirecting structures are arranged to redirect the gas flow in each inlet channel through adjacent panel filter(s) and into adjacent outlet channel(s). The filter may provide a pressure drop of less than 3 iwg, less than 1 iwg, or less than 0.3 iwg.

Filter for purifying an air stream

A process and device for enhancing the chemical protection capability of a collective protection filter whereby the process stream exiting the collective protection filter is passed through an Auxiliary Filter. The auxiliary filter containing an ammonia removal media, such as zirconium hydroxide impregnated with zinc chloride (ZnCl/Zr(OH)), an oxidizing media, preferably zirconium hydroxide impregnated with potassium permanganate (KMnO/Zr(OH)), and a methyl bromide removal media, preferably activated carbon impregnated with triethylenediamine (TEDA/carbon). The auxiliary filter and process are configured to remove toxic industrial chemicals including NH, NO(mixtures of NO and NO) and CHO, and CHBr.

Auxiliary filter for enhanced chemical protection

Various embodiments may include a system for removing contaminants from contaminated water comprising: a distillation still supplying heat to contaminated water to boil the contaminated water; a vent allowing a vapor stream to exit the distillation still; an oxidation unit removing additional contaminants from the vapor stream; an outlet discharging a purified water stream from the oxidation unit; and a heat exchanger transferring heat from the purified water stream leaving the oxidation unit to the vapor stream exiting the distillation still before the vapor stream enters the oxidation unit.

Process for purification of contaminated water

The present invention relates to a textile composite for the adsorption and breakdown of harmful chemical materials. A support layer and a sorptive and reactive material mounted on the support layer form a protective layer, which is mounted on an inner liner. The protective layer adsorbs and breaks down harmful chemical materials. An outer shell is formed of fabric having an outer surface that is hydrophobic for resisting the passage of harmful chemicals, which may be in the form of vapor, liquid or aerosols. Preferably, the sorptive and reactive material includes zirconium hydroxide, and the support layer includes a fabric material. The zirconium hydroxide is distributed on the fabric material in the amount of at least 20 grams of zirconium hydroxide per square meter. Alternatively, the zirconium hydroxide is distributed in the amount of at least 150 or 200 grams of zirconium hydroxide per square meter.

Textile composite having sorptive and reactive properties against toxic agents

The present disclosure relates to water purification. The teachings thereof may be embodied in processes for removing contaminants from contaminated water. An example process may include: boiling or evaporating a contaminated water to distill the contaminated water; removing a vapor stream from the boiling or evaporating contaminated water; delivering the vapor stream to an oxidation unit; removing additional contaminants from the vapor stream in the oxidation unit; and discharging a purified water stream from the oxidation unit.

The present invention provides processes for filtering undesired chemicals in streams of contaminated air for supply to confined areas. The processes provide (1) contacting air with a filter comprising by volume from about 5% to about 95% impregnated zirconium hydroxide, from about 5% to about 95% activated impregnated carbon, and optionally, up to about 50% ammonia removal material; and (2) supplying the contacted air to a confined area.

Processes for filtering chemicals from air streams

A method for extending the service life of a Collective Protection (CP) filter includes: providing at least one CP filter comprising a filter bed; and passing an airstream through a supplemental bed configured to enhance the filter bed by promoting reactions that facilitate the removal of one or more of chemical warfare agents and toxic threat compounds. An apparatus for extending the service life of a Collective Protection (CP) filter, the apparatus including: a CP filter comprising a filter bed; and a supplemental bed configured so as to enhance the filter bed by promoting reactions that facilitate the removal of chemical warfare agents and toxic chemicals.

Method and apparatus for prolonging the service life of a collective protection filter using a supplemental bed

A natural gas-containing stream such as biogas from landfills and sewage treatment plants is freed of siloxane contaminants by passing the biogas through a bed containing an adsorbent having a neutral surface, which adsorbs the siloxanes. When the bed of neutral adsorbent is filled to capacity, the adsorbent bed is heated to remove the siloxanes and regenerate the bed. The neutral adsorbent reduces disadvantageous reactions between the adsorbent and siloxane and other impurities in the natural gas-containing stream.

Regenerative adsorption process for removal of silicon-containing contaminants from process gas using a neutral adsorbent media

A method for oxidizing an amount of CO in a CO-containing gas stream, e.g., a combustion stream from fuel combustion, is provided. The method comprises exposing the CO-containing gas stream to a catalytic coating at reaction conditions, including at least 8 vol. % Oand a temperature of at least 600&#xb0; C. At these reaction conditions, the method comprises generating gaseous intermediate oxidizing species at the catalytic coating for oxidation of the carbon monoxide within the CO-containing gas stream as a homogeneous reaction to improve CO removal efficiency.

High temperature catalytic process to reduce emissions of carbon monoxide

Improved processes for activating a catalyst system used for the reduction of nitrogen oxides are provided. In one embodiment, the catalyst system is activated by passing an activation gas stream having an amount of each of oxygen, water vapor, nitrogen oxides, and hydrogen over the catalyst system and increasing a temperature of the catalyst system to a temperature of at least 180&#xb0; C. at a heating rate of from 1-20&#xb0;/min. Use of activation processes described herein leads to a catalyst system with superior NOx reduction capabilities.

Process of activation of a palladium catalyst system

A process and system () for reducing NOin a gas using hydrogen as a reducing agent is provided. The process comprises contacting the gas stream () with a catalyst system () comprising sulfated zirconia washcoat particles (), palladium, a pre-sulfated zirconia binder (), and a promoter () comprising at least one of titanium, zinc, or a mixture thereof. The presence of zinc or titanium increases the resistance of the catalyst system to a sulfur and water-containing gas stream.

Selective catalytic reduction system and process for treating NOx emissions using a zinc or titanium promoted palladium-zirconium catalyst

A process for the catalytic reduction of nitrogen oxides (NOx) in a gas stream () in the presence of His provided. The process comprises contacting the gas stream with a catalyst system () comprising zirconia-silica washcoat particles (), a pre-sulfated zirconia binder (), and a catalyst combination () comprising palladium and at least one of rhodium, ruthenium, or a mixture of ruthenium and rhodium.

Selective catalytic reduction system and process for treating NOx emissions using a palladium and rhodium or ruthenium catalyst

A selective catalytic reduction process with a palladium catalyst for reducing NOx in a gas, using hydrogen as a reducing agent. A zirconium sulfate (ZrO)SOcatalyst support material with about 0.01-2.0 wt. % Pd is applied to a catalytic bed positioned in a flow of exhaust gas at about 70-200&#xb0; C. The support material may be (ZrO&#x2014;SiO)SO. HO and hydrogen may be injected into the exhaust gas upstream of the catalyst to a concentration of about 15-23 vol. % HO and a molar ratio for H/NOin the range of 10-100. A hydrogen-containing fuel may be synthesized in an Integrated Gasification Combined Cycle power plant for combustion in a gas turbine to produce the exhaust gas flow. A portion of the fuel may be diverted for the hydrogen injection.

[object Object]

A process for producing a stable high-temperature catalyst for reduction of nitrogen oxides in combustion exhaust gases at operating temperatures from 300&#xb0; C. to over 700&#xb0; C. without the need for exhaust dilution. A zeolite material is steam-treated at a temperature and duration sufficient to partially de-aluminize the zeolite to approximately a steady state, but not sufficient to fully collapse its chemical structure. Iron is added to the zeolite material. The zeolite material is calcined at a temperature, humidity, and duration sufficient to stabilize the zeolite material. Examples and specifications for ranges, order, and durations of steaming, calcining, and other steps are provided.

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Plain City, OH, United States of America

Michael J Knapke