Self-heating type methanol aqueous-phasereforming reaction system

Abstract

The invention relates to an aqueous-phasereforming system, in particular to a self-heating type methanol aqueous-phasereforming reaction system, which comprises a preheating chamber, a reforming chamber and an internal combustion engine and further comprises an evaporator and a heat exchange chamber; the evaporator, the preheating chamber, the reforming chamber and the heat exchange chamber are successively connected through a pipeline to form a first route; the heat exchange chamber, the evaporator and the internal combustion engine are successively connected through the pipeline to form a second route; the first route is communicated with the second route in the heat exchange chamber; and the internal combustion engine, the heat exchange chamber, the reforming chamber and the preheatingchamber are successively connected through the pipeline to form a tail gas route. The system utilizes high-temperature tail gas after hydrogen gas generated by methanol reforming reaction is burnt inthe internal combustion engine, reformed gas in the heat exchange chamber absorbs the heat of the high-temperature tail gas and releases the heat in the evaporator to heat and evaporate a methanol water solution at normal temperature, and enough heat is supplied for carrying out reforming reaction; and the high-temperature tail gas is cooled and then enters the reforming chamber, so that the temperature of the high-temperature tail gas is prevented from being too high to cause catalyst deactivation.

Description

technical field [0001] The invention relates to a reforming hydrogen production system, in particular to an autothermal methanol reforming hydrogen production reaction system. Background technique [0002] With the development of industry, problems such as environmental pollution caused by massive combustion of fossil fuels and energy crisis caused by excessive exploitation of fossil energy have become increasingly serious. The development of new energy has become an urgent problem to be solved on the road of human development. Hydrogen energy is a new energy that is currently being researched. It has a high combustion calorific value, no pollution to the combustion products, and easy and diverse ways to obtain it. It is an ideal clean energy. However, hydrogen is gaseous at room temperature, and is flammable and explosive, which makes storage and transportation difficult. The existence of these problems has prevented it from being widely used so far. [0003] To solve thes...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the temperature of methanol partial oxidation hydrogen production is unsuitable to control and the autothermal reforming of methanol requires the participation of air and oxygen and the amount of hydrogen produced is small, and provides an autothermal methanol reforming hydrogen production reaction system, It belongs to the hydrogen production method of steam reforming of methanol

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