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System for preparing hydrogen from methanol and fuel battery device containing the same

A methanol-to-hydrogen and methanol-to-methanol technology is applied in the field of fuel cell devices and methanol-to-hydrogen systems to achieve the effects of reducing volume, increasing conversion rate, and improving resource utilization

Active Publication Date: 2008-02-13
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the disadvantage that the existing methanol hydrogen production system cannot obtain hydrogen with a CO concentration lower than 50ppm, and provide a methanol hydrogen production system capable of obtaining hydrogen with a CO concentration lower than 50ppm

Method used

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  • System for preparing hydrogen from methanol and fuel battery device containing the same
  • System for preparing hydrogen from methanol and fuel battery device containing the same
  • System for preparing hydrogen from methanol and fuel battery device containing the same

Examples

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Embodiment approach

[0018] According to the first embodiment of the present invention, as shown in Figure 1, the methanol hydrogen production system provided by the present invention includes a methanol supply device 11, a water supply device 12, an oxidizing gas supply device 13 and a methanol hydrogen production device 2, the The methanol supply unit 11 and the water supply unit 12 are all communicated with the inlet of the methanol hydrogen production unit 2, and the outlet of the methanol hydrogen production unit 2 and the oxidizing gas supply unit 13 are all communicated with the entrance of the carbon monoxide selective oxidation reactor 3, so The methanol hydrogen production unit 2 includes a hydrogen production catalyst, the carbon monoxide selective oxidation reactor 3 includes a carbon monoxide selective oxidation catalyst, and the carbon monoxide selective oxidation catalyst contains platinum or an alloy of platinum, palladium and / or rhodium.

[0019] When using the methanol hydrogen pr...

Embodiment 1

[0078] This embodiment is used to illustrate the methanol-hydrogen production system and fuel cell device provided by the present invention.

[0079] The methanol hydrogen production system shown in Figure 3 and the fuel cell device shown in Figure 7 were prepared.

[0080] Wherein, the methanol supply device 11 and the water supply device 12 are cuboid storage tanks of 150 mm * 150 mm * 200 mm made of stainless steel; the oxidizing gas supply device 13 is compressed air; the methanol hydrogen production device 2 is made of The tubular reactor of 1.4 liters of volume that 0.3 millimeters of stainless steel 316 is made, comprises inner channel and outer channel; Described carbon monoxide selective oxidation reactor 3 is the tubular reactor of 0.06 liters of volumes that stainless steel 316 is made; The gas The carburetor 4 is a plate-fin heat exchanger with an inner channel and an outer channel made of stainless steel with a heat exchange area of ​​0.8 square meters. The inlet ...

Embodiment 2

[0085] This embodiment is used to illustrate the methanol-hydrogen production system and fuel cell device provided by the present invention.

[0086] The methanol hydrogen production system as shown in Figure 3 and the fuel cell device as shown in Figure 7 are prepared using the same device, material and connection method as in Example 1, the difference is that the carbon monoxide selective oxidation catalyst is a Pt-Ce alloy (20% by weight of Pt80% by weight of Ce) (Selectra (TM) catalyst produced by Yingge Chemical Company), Pt-Ce alloy is supported on Al 2 o 3 On the coating, the coating density is 20 g / cm2, Al 2 o 3 The coating is coated on a 300-mesh cordierite honeycomb carrier, and the coating thickness is 20 microns; the hydrogen production catalyst is supported on Al 2 o 3Cu-Zn alloy (50% by weight Cu50% by weight Zn) on the coating, coating density 30 g / cm2, Al 2 o 3 Coated on a 300-mesh FeCrAl alloy honeycomb carrier, the thickness of the coating is 30 microns...

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Abstract

A hydrogen production by methanol system includes a methanol supplying device, a water supplying device and a hydrogen production by methanol device. The methanol supplying device and the water supplying device communicate with an inlet of the hydrogen production by methanol device including a hydrogen production activator, a selective oxidation reactor of carbon monoxide and an oxidative gas supplying device. An outlet of the hydrogen production by methanol device and the oxidative gas supplying device both communicate with the inlet of the selective oxidation reactor of carbon monoxide including a selective oxidation activator of carbon monoxide which comprises the alloy of a platinum or the platinum and a palladium andor a rhodium. The hydrogen production by methanol system provided bythe present invention can produce the mixed gas of hydrogen, in which the concentration of the carbon monoxide is less than 50 parts per million and does not cause an oxidation or a blast of the hydrogen.

Description

technical field [0001] The invention relates to a methanol-hydrogen production system and a fuel cell device including the system. Background technique [0002] A fuel cell is a power generation device that directly converts chemical energy contained in chemical substances into electrical energy by using redox reactions. Among them, the proton exchange membrane fuel cell with hydrogen as the energy carrier is the most widely used. It uses high-purity hydrogen as fuel and oxygen as oxidizing gas. The two react at the anode and cathode respectively to generate electricity. The reaction product is only water. Features of high efficiency and environmental protection. Although proton exchange membranes have the above advantages, problems in hydrogen production, transportation, storage, and hydrogen infrastructure construction seriously restrict its promotion and application. Various hydrogen storage methods commonly used at present, such as common high-pressure tank hydrogen st...

Claims

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Application Information

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IPC IPC(8): C01B3/34C01B3/12B01J23/38H01M8/06H01M8/0612H01M8/0668
CPCY02E60/50
Inventor 周良董俊卿
Owner BYD CO LTD
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