Methanol water hydrogen-making machine and hydrogen-making method thereof

Abstract

The invention discloses a methanol water hydrogen-making machine and a hydrogen-making method thereof. The methanol water hydrogen-making machine comprises a methanol water storage container, a delivery pump, a heat exchanger, a reformer, a separation device and a fuel cell, wherein the delivery pump is used for delivering methanol and water inside the methanol water storage container to a reforming chamber of the reformer; the heat exchanger is used for carrying out heat exchange on the low-temperature methanol and water and a high-temperature mixed gas output from the reforming chamber; the reformer is provided with the reforming chamber and an electric heater, and the electric heater provides heat energy for the reforming chamber; and the high-temperature mixed gas which takes carbon dioxide and hydrogen as main parts is prepared in the reforming chamber, passes through the heat exchanger and then enters the separation device to be separated to obtain the hydrogen, and a part of the hydrogen enters the fuel cell and generates electrochemical reaction in the fuel cell to generate electric energy to provide electricity for the delivery pump and the electric heater. According to the methanol water hydrogen-making machine, the reformer has no need of being provided with a combustion chamber, an air inlet fan, an air inlet channel and a smoke window, the heating temperature inside the reformer is easily controlled and stable, and the reformer is simple in structure, stable in work and low in overhaul difficulty.

Description

technical field [0001] The invention relates to the technical field of hydrogen production equipment, in particular to a methanol-water hydrogen production machine and a hydrogen production method thereof. Background technique [0002] Hydrogen is one of the most ideal energy sources in the 21st century. When burning the same weight of coal, gasoline and hydrogen, hydrogen produces the most energy, and the product of its combustion is water without ash and waste gas. pollute the environment; while coal and oil combustion mainly produce CO 2 and SO 2 , which can produce the greenhouse effect and acid rain respectively. The reserves of coal and oil are limited, while hydrogen is mainly stored in water, and the only product after combustion is water, which can continuously produce hydrogen and never run out. The distribution of hydrogen is very wide, and water is a large "warehouse" of hydrogen, which contains 11% hydrogen. There is about 1.5% hydrogen in soil; oil, coal, n...

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Problems solved by technology

[0005] However, the above-mentioned methanol water hydrogen production system also has the following deficiencies: First, since the reformer needs to be provided with a combustion chamber, the reformer also needs to be provided with an air intake fan and an air intake channel for fanning oxygen in the air, and The chimney is used to discharge the exhaust gas generated after combustion. The high-temperature exhaust gas is discharged from the chimney, which not only wastes heat energy, but also easily affects the operation of various parts of the hydrogen production system; second, the combustion temperature of hydrogen in the combustion chamber often soars to Above 1000°C, it is easy to burn out the reformer, and it is difficult to control the heat release mode of hydrogen combustion, and the temperature stability of the combustion chamber is poor (the temperature of the combustion chamber is usually required to be between 405-570°C); third, reformer settings Gasification chambers, combustion chambers and other chambers, air intake fans, air intake channels, and smokestacks and other components increase the structural complexity and difficulty of maintenance of the reformer

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