Self-heating methanol reforming hydrogen production reactor integrating CO selective methanation

Abstract

The invention discloses a self-heating methanol reforming hydrogen production reactor integrating CO selective methanation. The reactor comprises an upper cover plate, an upper heat exchange plate, aheat exchange plate separation layer, an evaporation plate, a first methanol catalytic combustion plate, a first methanol water vapor reforming plate, a second methanol catalytic combustion plate, a second methanol water vapor reforming plate, a CO selective methanation reaction plate, a lower heat exchange plate and a lower cover plate from top to bottom. A CO selective methanation reaction is integrated in the reactor, and the CO selective methanation reaction is completed by directly using hydrogen in reformed gas; after the reformed gas which is reformed and prepared by a methanol water vapor reaction is subjected to CO selective methanation treatment, the CO content is reduced; in a CO removal process of the reactor, other reactants are not introduced, and the content of hydrogen in final product gas is 70% or above. Gradient distribution of the temperature in the reactor is realized through the laminating sequence and connecting gas paths of all the reaction plates, so that eachof two different catalysts is located in an optimum working temperature; and the heat exchange plates are respectively designed at the upper end and the lower end of the reactor for preheating and recycling, so that the energy utilization rate is improved.

Description

technical field [0001] The invention relates to a methanol reforming hydrogen production reactor, in particular to an autothermal methanol reforming hydrogen production reactor integrating CO selective methanation. [0002] technical background [0003] Energy is the basis for the survival and continuous development of human society. Since the 21st century, my country is facing severe energy crisis and environmental crisis, so the development of clean energy is imperative. Among them, hydrogen energy has a high combustion calorific value and the combustion product is water, which is known as the most ideal clean energy. [0004] Hydrogen fuel cells are one of the main ways to utilize hydrogen energy. Since the fuel cell is not limited by the Carnot cycle, the direct power generation efficiency can reach more than 45%, and the power generation efficiency of the combined heat and power system can reach 90%. Hydrogen energy also has the characteristics of environmental friend...

AI Technical Summary

Problems solved by technology

There is still room for improvement in CO removal and system integration in existing methanol reforming hydrogen production units

Images