Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus for generating hydrogen where starting time can be shortened by rapid temperature rising in an initial stage and where CO concentration can be sufficiently lowered. SOLUTION: The apparatus for generating hydrogen where a hydrogen-rich reformed gas is produced by reforming a hydrocarbon-based gas comprises a reforming portion 1 where the inner combustion and the reforming reaction of a hydrocarbon gas are performed by bringing the hydrocarbon-based gas together with an oxidation gas and steam into a catalytic reaction with a catalyst, a CO modifying portion 2 to reduce CO in the reformed gas obtained at the reforming portion 1 by CO conversion to hydrogen, a CO selective oxidation portion 3 to reduce residual CO in the reformed gas discharged from the CO modifying portion 2 by oxidation and a first heat exchanger 11 to cool heat generated by a CO selective oxidation reaction at the CO selective oxidation portion 3 with the oxidation gas. The oxidation gas heated in the first heat exchanger 11 is introduced into the reforming portion 1 as the oxidation gas for inner combustion at the reforming portion 1. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a carbon monoxide gas generation apparatus which enables a high yield of carbon monoxide and operation with reduced maintenance. SOLUTION: The apparatus includes a reactor adapted to have a hydrocarbon gas, an oxygen gas and steam introduced therein as raw gases and cause the raw gases to undergo contact reaction on a catalyst to thereby carry out combustion reaction and transformation reaction of the hydrocarbon gas into a carbon monoxide gas as a mixed gas which is rich in hydrogen gas and high in carbon monoxide gas concentration. Further, a gas containing hydrogen is introduced at the downstream of the reactor. Thereby, a high yield of the carbon monoxide and the operation with reduced maintenance are made possible. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a carbon monoxide gas generation apparatus that exhibits a high yield of carbon monoxide gas and can be operated with reduced maintenance. SOLUTION: High yield of carbon monoxide gas and operation with reduced maintenance can be attained by providing a reactor into which a hydrocarbon gas, an oxygen-based gas and steam are introduced as raw gases and which generates carbon monoxide gas as a mixed gas rich in hydrogen gas and high in carbon monoxide gas concentration by subjecting the raw gases to a catalytic reaction on a catalyst to thereby carry out a combustion reaction and a conversion reaction of the hydrocarbon gas, and introducing steam to the downstream of the reactor. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus for generating an atmospheric gas for carburization, capable of inexpensively and safely generating a carburizing gas having a high carbon potential. SOLUTION: The apparatus for generating an atmospheric gas for carburization includes a reactor 1 into which a hydrocarbon-based gas, an oxygen-based gas and steam are introduced as raw material gases, and which brings the raw material gases into a catalytic reaction with a catalyst to cause a combustion reaction and modification reaction of the hydrocarbon-based gas, thereby generating an atmospheric gas for carburization rich with hydrogen gas and having a high carbon monoxide gas concentration. Since the oxygen-based gas is used as raw material in place of air, the atmospheric gas for carburization having a high carbon potential can be obtained. Since steam is used as raw material, the apparatus ensures a lowered explosion limit and improved safety as compared with an apparatus using only a hydrocarbon-based gas and oxygen as raw materials. The cost of the raw material gases is low and the carburizing gas having a high carbon potential can safely and inexpensively be generated. COPYRIGHT: (C)2009,JPO&INPIT