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Method for Exhaust Cleanup from Combustion Processes Using Mixed-Metal Oxide Based Catalysts

National Energy Technology Laboratory

Contact NETL About This Technology

Technology Marketing Summary

The U.S. Department of Energy’s National Energy Technology Laboratory (NETL) has developed a method for removing pollutants from the exhaust stream of an internal combustion engine (ICE) using a multi-component mixed-metal oxide (MMO) catalyst system. This invention is available for licensing and/or further collaborative research from the U.S. Department of Energy’s National Energy Technology Laboratory.

Description

The method oxidizes unconverted fuel, COx, and particulate matter, and selectively reduces NOx, among other species. The invention uses one or more multi-component mixed-metal oxide (MMO) crystalline catalysts for the oxidation of soot/particulate matter.

Benefits

  The invention can remove toxic and environmentally damaging byproducts found in the exhaust gas from internal combustion engines.
  The process creates advanced catalysts and methods of synthesizing catalysts that uses platinum group metals (PGM) in a more efficient way, increasing the longevity and decreasing overall costs of catalytic converters.
  The invention can respond to new engine technologies requiring novel materials that are highly active and thermally stable under a range of exhaust gas treatment conditions.
  The process uses low amounts of PGM catalysts while possessing synergistic redox functions that produce enhanced activity and performance under both lean and rich engine conditions, as well as during cold start-up temperatures as referenced in the new EPA, 40 CFR Parts 79, 80, 85, et al. Control of Air Pollution from Motor Vehicles: Tier 3 Motor Vehicle Emission and Fuel Standards; Final Rule.

Applications and Industries

The invention removes pollutants from the exhaust stream of an internal combustion engine using a multi-component mixed-metal oxide catalyst system.

Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Patent 9,150,476
Patent
9,150,476
Method of CO and/or CO.sub.2 hydrogenation using doped mixed-metal oxides
A method of hydrogenation utilizing a reactant gas mixture comprising a carbon oxide and a hydrogen agent, and a hydrogenation catalyst comprising a mixed-metal oxide containing metal sites supported and/or incorporated into the lattice. The mixed-metal oxide comprises a perovskite, a pyrochlore, a fluorite, a brownmillerite, or mixtures thereof doped at the A-site or the B-site. The metal site may comprise a deposited metal, where the deposited metal is a transition metal, an alkali metal, an alkaline earth metal, or mixtures thereof. Contact between the carbon oxide, hydrogen agent, and hydrogenation catalyst under appropriate conditions of temperature, pressure and gas flow rate generate a hydrogenation reaction and produce a hydrogenated product made up of carbon from the carbon oxide and some portion of the hydrogen agent. The carbon oxide may be CO, CO.sub.2, or mixtures thereof and the hydrogen agent may be H.sub.2. In a particular embodiment, the hydrogenated product comprises an alcohol, an olefin, an aldehyde, a ketone, an ester, an oxo-product, or mixtures thereof.
U.S. Department of Energy 10/06/2015
Issued
Patent 9,598,644
Patent
9,598,644
Method of CO and/or CO.sub.2 hydrogenation to higher hydrocarbons using doped mixed-metal oxides
A method of hydrogenation utilizing a reactant gas mixture comprising a carbon oxide and a hydrogen agent, and a hydrogenation catalyst comprising a mixed-metal oxide containing metal sites supported and/or incorporated into the lattice. The mixed-metal oxide comprises a pyrochlore, a brownmillerite, or mixtures thereof doped at the A-site or the B-site. The metal site may comprise a deposited metal, where the deposited metal is a transition metal, an alkali metal, an alkaline earth metal, or mixtures thereof. Contact between the carbon oxide, hydrogen agent, and hydrogenation catalyst under appropriate conditions of temperature, pressure and gas flow rate generate a hydrogenation reaction and produce a hydrogenated product made up of carbon from the carbon oxide and some portion of the hydrogen agent. The carbon oxide may be CO, CO.sub.2, or mixtures thereof and the hydrogen agent may be H.sub.2. In a particular embodiment, the hydrogenated product comprises olefins, paraffins, or mixtures thereof.
U.S. Department of Energy 03/21/2017
Issued
Technology Status
Development StageAvailabilityPublishedLast Updated
ProposedAvailable07/26/201707/26/2017

Contact NETL About This Technology

To: Jessica Sosenko<jessica.sosenko@netl.doe.gov>