USA As Represented by Secretary of the Navy

Heather D Willauer

Dennis R Hardy

Frederick Williams

M Kathleen Lewis

Felice DiMascio

Marc Porosoff

Brian H Houston

Jeffrey W Baldwin

Bernard R Matis

Robert W Dorner

John Barile

Ejiogu C Ndubizu

James R Morse

David A Zugell

Nicolas T Gangemi

Disclosed is a method of: providing a hydrogenated spcarbon allotrope, and releasing hydrogen gas from the carbon allotrope. The method may use an apparatus having: a vessel for containing the hydrogenated spcarbon allotrope, a fuel cell capable of using hydrogen gas a fuel, and a tube for transporting hydrogen gas from the vessel to the fuel cell. The carbon allotrope may be made by: providing a mixture of an spcarbon allotrope and liquid ammonia, adding an alkali metal to the mixture, and sonicating the mixture to form a hydrogenated form of the carbon allotrope. The hydrogenated carbon can be at least 3.5 wt % hydrogen covalently bound to the carbon.

Hydrogen storage material

A supported heterogeneous catalyst material for catalyzing the reverse water-gas shift (RWGS) reaction for the selective formation of CO using an alkali metal-doped molybdenum carbide on a gamma alumina support (A-MoC/γ-AlO, A=K, Na, Li). The A-MoC/γ-AlOcatalyst is synthesized by co-impregnation of molybdemun and alkali metal precursors onto a γ-AlOsupport. It is then carburized to form the A-MoC/γ-AlO.

Alkali metal doped molybdenum carbide supported on gamma-alumina for selective COhydrogenation into CO

Apparatus for seawater acidification including an ion exchange, cathode and anode electrode compartments and cation-permeable membranes that separate the electrode compartments from the ion exchange compartment. Means is provided for feeding seawater through the ion exchange compartment and for feeding a dissociable liquid media through the anode and cathode electrode compartments. A cathode is located in the cathode electrode compartment and an anode is located in the anode electrode compartment and a means for application of current to the cathode and anode is provided. A method for the acidification of seawater by subjecting the seawater to an ion exchange reaction to exchange Hions for Naions. Carbon dioxide may be extracted from the acidified seawater. Optionally, the ion exchange reaction can be conducted under conditions which produce hydrogen as well as carbon dioxide. The carbon dioxide and hydrogen may be used to produce hydrocarbons.

Extraction of carbon dioxide and hydrogen from seawater and hydrocarbon production therefrom

A method for COhydrogenation via the reverse water-gas shift (RWGS) reaction using alkali metal-doped molybdenum carbide, supported on gamma alumina (A-MoC/&#x3b3;-AlO, A=K, Na, Li). The A-MoC/&#x3b3;-AlOcatalyst is synthesized by co-impregnation of molybdemun and alkali metal precursors onto a &#x3b3;-AlOsupport. It is then carburized to form the A-MoC/&#x3b3;-AlO. Also disclosed is the related catalyst material.

A method for using an electrochemical cell to continuously acidify alkaline water sources and recover carbon dioxide with simultaneous continuous hydrogen gas production. The electrochemical cell has a center compartment, an electrolyte-free anode compartment having a mesh anode in direct contact with an ion permeable membrane, an endblock in direct contact with the anode where the endblock provides a gas escape route behind the anode, an electrolyte-free cathode compartment having a mesh cathode in direct contact with an ion permeable membrane, and an endblock in direct contact with the cathode where the endblock provides a gas escape route behind the cathode. Current applied to the electrochemical cell for generating hydrogen gas also lowers the pH of the alkaline water to produce carbon dioxide with no additional current or power.

Electrochemical module configuration for the continuous acidification of alkaline water sources and recovery of COwith continuous hydrogen gas production

An electrochemical cell for the continuous acidification of alkaline water sources and recovery of carbon dioxide with simultaneous continuous hydrogen gas production having a center compartment, an electrolyte-free anode compartment having a mesh anode in direct contact with an ion permeable membrane, an endblock in direct contact with the anode where the endblock provides a gas escape route behind the anode, an electrolyte-free cathode compartment having a mesh cathode in direct contact with an ion permeable membrane, and an endblock in direct contact with the cathode where the endblock provides a gas escape route behind the cathode. Current applied to the electrochemical cell for generating hydrogen gas also lowers the pH of the alkaline water to produce carbon dioxide with no additional current or power. Also disclosed is the related method for continuously acidifying alkaline water sources and recovering carbon dioxide with continuous hydrogen gas production.

[object Object]

A method for recovering carbon dioxide from acidified seawater using a membrane contactor and passing seawater with a pH less than or equal to 6 over the outside of a hollow fiber membrane tube while applying vacuum or a hydrogen sweep gas to the inside of the hollow fiber membrane tube, wherein up to 92% of the re-equilibrated [CO]is removed from the natural seawater.

Method for the continuous recovery of carbon dioxide from acidified seawater

A catalyst support which may be used to support various catalysts for use in reactions for hydrogenation of carbon dioxide including a catalyst support material and an active material capable of catalyzing a reverse water-gas shift (RWGS) reaction associated with the catalyst support material. A catalyst for hydrogenation of carbon dioxide may be supported on the catalyst support. A method for making a catalyst for use in hydrogenation of carbon dioxide including application of an active material capable of catalyzing a reverse water-gas shift (RWGS) reaction to a catalyst support material, the coated catalyst support material is optionally calcined, and a catalyst for the hydrogenation of carbon dioxide is deposited on the coated catalyst support material. A process for hydrogenation of carbon dioxide and for making syngas comprising a hydrocarbon, esp. methane, reforming step and a RWGS step which employs the catalyst composition of the present invention and products thereof.

Catalytic support for use in carbon dioxide hydrogenation reactions

The present invention is generally directed to a system for recovering COfrom seawater or aqueous bicarbonate solutions using a gas permeable membrane with multiple layers. At elevated pressures, gaseous COand bound COin the ionic form of bicarbonate and carbonate diffuse from the seawater or bicarbonate solution through the multiple layers of the membrane. Also disclosed is the related method of recovering COfrom seawater or aqueous bicarbonate solutions.

Growing community of inventors

Fairfax Station, VA, United States of America

Heather D Willauer