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

Abstract

The invention discloses a methanol-water reforming hydrogen making machine and a hydrogen making method thereof. The methanol-water reforming hydrogen making machine comprises a methanol-water storage container, a delivery pump, a heat exchanger and a reformer. The reformer is provided with a reforming chamber, an electromagnetic heater and a hydrogen purification device. The electromagnetic heater comprises an electromagnetic coil and a metal magnet, the electromagnetic coil can generate a high frequency magnetic field after being powered up, and the metal magnet can be inducted by the magnetic field to give out heat, so that heat energy is provided for the reforming chamber. The reforming chamber is used for conducting a reforming hydrogen making reaction of methanol and water, and high temperature mixed gas mainly containing carbon dioxide and hydrogen is obtained; after heat of the high temperature mixed gas output from the reforming chamber is separated by the hydrogen purification device, hydrogen can be obtained from the hydrogen producing end of the hydrogen purification device. The methanol-water reforming hydrogen making machine is long in service life, small in amount of maintenance, small in heat lag, accurate to control, high in starting speed of the reformer, high in heat efficiency and even in heating.

Description

technical field [0001] The invention relates to the technical field of hydrogen preparation equipment, in particular to a methanol-water reforming 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; o...

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Problems solved by technology

[0007] However, the electric heater used in the methanol-water hydrogen generator is a resistance heating element and a metal casting heat conductor, which also has the following defects: First, the service life is short and the maintenance amount is large. Because the electric heater uses a resistance heating element to generate heat, the metal The casting heat conductor conducts heat. When the temperature reaches 405-570°C, the resistance wire is easily blown due to high temperature and aging. The average life of the commonly used resistance heating element is less than half a year, so the maintenance workload is relatively large; The method of heat generation by the heating element and the heat conduction of the heat conductor of the metal casting has a large thermal lag, and it is difficult for the control device to accurately control the temperature of the reforming chamber; Slow, the start-up time is usually more than 3 minutes; Fourth, the thermal efficiency of the resistance heating element is low, usually only 50% of the electric energy can be used, and the heating is uneven

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