Hydrogen production method by steam reforming in combined reactor and device thereof

A technology of reactor and steam, which is applied in the field of reforming hydrogen production in fixed bed-semi-circulating fluidized bed composite reactor, can solve the problems of reduced catalyst activity, high cost, complicated preparation process, etc., and achieve significant social benefits and Economic benefits, reduction of hydrogen production costs, and shortening of the process flow
CN102730636AInactive Publication Date: 2012-10-17CHONGQING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING UNIV
Publication Date
2012-10-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

A hydrogen production method by steam reforming in a combined reactor and a device thereof belong to the technical field of a hydrogen production technology by steam reforming of light dydrocarbon. The device provided by the invention comprises a fixed-bed reactor and a half-cycle fluidized bed reactor. The method is realized by the use of the device, and natural gas or dry gas for oil refining or light oil is used as a raw material. The method comprises the following steps: reducing a nickel based catalyst, carrying out a catalytic reforming reaction in the fixed-bed reactor, carrying out a catalytic reforming reaction again as well as a carbon dioxide adsorption reaction in a riser reactor of the fluidized bed, carrying out gas-solid separation to prepare the hydrogen product, and regenerating and utilizing carbon dioxide adsorbent particles. The invention has characteristics of short process flow, simple operation, energy conservation, low production cost, high hydrogen production efficiency, high purity of the hydrogen product, complete utilization of resources, no environmental pollution and the like. The invention can be widely applied in hydrogen production by steam reforming. The hydrogen prepared by the adoption of the method can be extensively applied in the fields of petroleum, chemical industry, metallurgy and the like.
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Description

technical field

[0001] The invention belongs to the technical field of hydrogen production by steam reforming of light hydrocarbons, and in particular relates to a method and a device for reforming hydrogen production using a fixed bed-semi-circulating fluidized bed composite reactor. Background technique

[0002] With the shortage of domestic crude oil resources, a large amount of sulfur-containing crude oil is imported from abroad, so the sulfur content in crude oil increases accordingly. However, the market's environmental protection requirements for oil products are constantly improving, which requires hydrorefining of cracked oil. To meet the demand, resulting in a substantial increase in the demand for hydrogen. At present, light oil and natural gas are the main raw materials for hydrogen production, and the production process is mainly steam reforming. Traditional steam reforming needs to be carried out at high temperature, and two-stage fixed-bed reactors are usuall...

Claims

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