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Ultrasonic-assisted methanol steam reforming hydrogen production reactor

A steam reforming and hydrogen production reactor technology, applied in hydrogen, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of low reforming hydrogen production efficiency and low methanol conversion rate, and achieve reforming hydrogen production efficiency High, high methanol conversion effect

Active Publication Date: 2018-05-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the objectives of the present invention is to overcome the defects of low reforming hydrogen production efficiency and low methanol conversion rate in the process of methanol steam reforming hydrogen production in the prior art, and provide an ultrasonic-assisted methanol reforming that can improve the reforming hydrogen production efficiency Steam Reforming Hydrogen Reactor

Method used

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  • Ultrasonic-assisted methanol steam reforming hydrogen production reactor
  • Ultrasonic-assisted methanol steam reforming hydrogen production reactor
  • Ultrasonic-assisted methanol steam reforming hydrogen production reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] use Figure 1-4 The ultrasonic-assisted methanol steam reforming hydrogen production reactor produces hydrogen from methanol aqueous solution. specifically:

[0082] The volume of the reaction chamber of the ultrasonic-assisted methanol steam reforming hydrogen production reactor is 55.26cm 3 , the cross-sectional area of ​​the reaction chamber is 12.56cm 2 . Metal carrier reaction plates 1021 with porosities of 70%, 80%, and 90% are stacked from left to right in the reforming section 102 (specifically, containing copper-based catalysts (Cu(NO 3 ) 2 , Zn(NO 3 ) 2 , Al(NO 3 ) 3 and Ar(NO 3 ) 4The mol ratio is 11:6:4:1) copper fiber sintered board); The strip-shaped channels in the first evaporation plate are arranged in parallel, and the width of the interval between the strip-shaped channels is the same as that of the strip-shaped channels. The width is equal, both are 0.3mm; the second evaporating plate and the third evaporating plate are provided with circu...

Embodiment 2

[0085] The ultrasonic-assisted methanol steam reforming hydrogen production reactor in this embodiment is similar to that in Embodiment 1, the difference is that in this embodiment, the porosity is 80% and stacked from left to right in the reforming zone 102 %, 80%, 80% of the metal carrier reaction plate (the catalyst in the metal carrier reaction plate is exactly the same as that in Example 1, and it is also a copper fiber sintered plate). All the other are the same as in Example 1.

[0086] After testing, the hydrogen production efficiency in this embodiment is 94%, and the methanol conversion rate is 96%.

Embodiment 3

[0088] The ultrasonic-assisted methanol steam reforming hydrogen production reactor in this example is similar to that in Example 1, the difference is that in this example, the outermost layer of the reactor body is not provided with a ring-shaped heating plate, but a Four identical long cylindrical heating rods at a temperature of 250° C. are arranged equidistantly instead, that is, four heating rods are arranged on the outer periphery of the reactor body, and the diameter of the heating rods is 6 mm and the length is 20 mm.

[0089] All the other are the same as in Example 1.

[0090] After testing, the hydrogen production efficiency in this embodiment is 90%, and the methanol conversion rate is 90%.

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Abstract

The invention relates to the field of methanol steam reforming hydrogen production and discloses an ultrasonic-assisted methanol steam reforming hydrogen production reactor. The reactor comprises a reactor main body, an inner chamber formed from the reactor main body is used as a reaction chamber, the reactor main body is provided with an ultrasonic probe and an ultrasonic horn connected to the ultrasonic probe, and two ends of the reactor main body are provided with a material inlet for introducing a methanol aqueous solution and a material outlet for discharging hydrogen gas. Along a material flowing direction, the reaction chamber orderly comprises an evaporation zone containing an evaporation plate and a reforming zone containing a metal carrier reaction plate. The ultrasonic-assistedmethanol steam reforming hydrogen production reactor has the advantages of high reforming hydrogen production efficiency and high methanol conversion rate in hydrogen preparation from the methanol aqueous solution.

Description

technical field [0001] The invention relates to the field of methanol steam reforming hydrogen production, in particular to an ultrasonic-assisted methanol steam reforming hydrogen production reactor. Background technique [0002] Due to the advantages of simple structure, no amplification effect, easy control of operating conditions, and safety and reliability, microchannel reactors have attracted great attention from many researchers in recent years, including those in chemical engineering and related fields. [0003] In the microchannel reactor, the thickness of the flow boundary layer is very small, so the heat conduction and diffusion mass transfer resistance of the fluid are small, and the heat and mass transfer rate increases sharply. The volume of the whole reactor is more than an order of magnitude smaller than that of conventional reactors. Since the flame spread in the microchannel reactor is suppressed, this type of reactor can be operated in the explosion range...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/32
CPCC01B3/323C01B3/326
Inventor 柯育智唐晓津周伟黄涛韩颖毛俊义
Owner CHINA PETROLEUM & CHEM CORP
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