Process for preparing high purity hydrogen and carbon black by microwave mediation

Abstract

Microwave heating material set inside hydrogen making reactor is heated with microwave radiation penetrating the wall of the reactor in a sealed environment separated from outer air, so as to reach temperature for the gaseous hydrocarbon to be decomposed into hydrogen and carbon black. While maintaining the temperature of the microwave heating material inside the reactor, preheated, depurated andpressurized hydrocarbon gas flow is introduced and made to contact with the microwave heating material fully for reaction decomposing into hydrogen and carbon black. The reaction product is separatedto obtain hydrogen product and carbon black product. The production process may be performed continuously, and the microwave heating material includes both carbon black material and non-carbon black material.

Description

[0001] Technical field Energy chemical industry Background technique [0002] 1. The microwave hydrogen production technology adopted in United States Patent Application 20050042168 is to first carbonize solid (non-methane and other gas raw materials) carbon-containing compounds, and then use carbon and water vapor to carry out high-temperature reforming reactions under the guidance of microwaves to generate hydrogen Mixed gas with carbon oxides (ie syngas). At the same time, alkali metal hydroxide is used to absorb carbon monoxide and carbon dioxide in the product gas to form corresponding formate and carbonate to obtain hydrogen. And there is no concept of microwave-induced heating material in this patent at all. The raw materials used in this process are gaseous hydrocarbons, excluding carbohydrates as raw materials. The high-temperature reforming reaction does not use steam, so there is no carbon and oxygen compounds in the product gas except pure hydrogen. [0003] 2. ...

AI Technical Summary

Problems solved by technology

Moreover, there is no concept of microwave-induced heating materials in this patent.