Chain type hydrogen and oxygen production integrated method and device

Abstract

The invention provides a chain type hydrogen and oxygen production integrated method, comprising the following steps: CuFe2O4 and solid carbonaceous matters are subjected to reduction reaction to obtain reduction products of Cu, Fe and FeO, wherein the Fe, the FeO and vapour are subjected to oxidation reaction to generate H2 and Fe3O4, and the residual Cu is in oxidation reaction with the Fe3O4 and air to generate CuFe2O4 by oxidation; and the CuFe2O4 is heated and decomposed to generate O2 and CuFeO2, and the CuFeO2 and air are in oxidation reaction to generate CuFe2O4 once again. The invention also provides a device for realizing the method, which comprises the main assemblies of a bubbling fluidized bed reactor, a cyclone separator, a sealing valve and a rapid fluidized bed. The invention can obtain H2 and O2 by chain type continuous preparation, has simple process and low energy consumption, can obtain H2 and O2 with the high purity approximate to 100%, realizes CO2 zero emission in the hydrogen production process and has broad application prospect.

Description

technical field [0001] The present invention relates to hydrogen H 2 and O 2 Preparation field, specifically related to a simultaneous and continuous preparation of high-purity H 2 and O 2 methods and devices. Background technique [0002] h 2 It is not only an important chemical raw material, but also an efficient and clean energy carrier, which is widely used in petroleum, chemical industry, transportation, electric power and other fields. At present, the preparation of hydrogen has received close attention. There are many methods for the preparation of hydrogen, but most of the hydrogen used in industry 2 It is still derived from the electrolysis of water, or using hydrocarbon gas fuel as raw material, and reforming hydrocarbon gas fuel, water vapor reforming, CO 2 removal and H 2 It is obtained through many processes such as separation and purification, but due to the electrolysis of water to produce H 2 High energy consumption, while reforming hydrocarbon gas fu...

AI Technical Summary

Problems solved by technology

Cryogenic rectification is mainly based on the N in the air 2 and O 2 The difference in boiling point, the air is compressed and liquefied, and low-temperature rectification is carried out to make O 2 It is separated from the air. Although this method has a long history and mature technology, it has large investment, high energy consumption, long construction period, and complicated operation; while the pressure swing adsorption method is mainly based on molecular sieves and other adsorbents. 2 and O 2 Obtaining O from air due to differences in selective adsorption performance 2 , but due to high energy consumption, low O 2 Defects such as purity make the method difficult to apply widely

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