The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 1998
Filed:
Jul. 08, 1993
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A hydrogen source and carbon dioxide are activated by irradiating a high energy beam onto the hydrogen source formed of hydrogen gas and/or a gaseous hydrogen compound, and onto exhaust gas containing carbon dioxide. The carbon dioxide contained in the exhaust gas is reduced by the activated hydrogen in order to transform the carbon dioxide into a solid or liquid compound and then recover it. It is preferable to dispose mesh materials for promoting the reduction reaction with the carbon dioxide in the exhaust gas in multiple layers within the reaction container. The size of the aperture of the mesh materials is set so as to gradually decrease in the direction of the flow of the mixed gas. It is also preferable to form the cross-sectional area of the reaction container so as to gradually decrease in the direction of the flow of the mixed gas. By the method for removing carbon dioxide, carbon dioxide contained in the exhaust gas can be removed at a high reaction speed without heating or pressurizing the exhaust gas. In addition, reaction products are industrially useful materials, and the exhaust gas can be recovered in the form of a readily recoverable liquid or solid material.