CN211570113U - Methanol steam and hydrogen mixed gas integrated reforming device - Google Patents

Abstract

The utility model relates to a methanol steam and hydrogen mixed gas integrated reforming device, which comprises a reaction cavity, wherein a heating cavity is arranged outside the reaction cavity; the reaction cavity comprises an upper reaction cavity and a lower reaction cavity, the upper reaction cavity is suitable for reforming methanol steam, the lower reaction cavity is suitable for reforming hydrogen mixed residual gas, and the upper reaction cavity is communicated with the lower reaction cavity; and the reformed mixed gas enters the upper reaction cavity, is mixed with the mixed gas of the hydrogen, the carbon dioxide and the carbon monoxide and then is output from the first gas outlet. The integration of the methanol water reforming device and the water gas reformer is realized, and the layout structure of the whole hydrogen production system is optimized.

Description

Methanol steam and hydrogen mixed gas integrated reforming device

Technical Field

The utility model relates to a methanol steam and hydrogen gas mixture integral type reforming unit.

Background

The hydrogen energy is the most ideal energy in the 21 st century, is used as automobile fuel, is easy to start at low temperature, has small corrosion effect on an engine, and can prolong the service life of the engine. Because the hydrogen and the air can be uniformly mixed, a carburetor used on a common automobile can be completely omitted, and the structure of the existing automobile can be simplified. It is more interesting to add only 4% hydrogen to the gasoline. When it is used as fuel of automobile engine, it can save oil by 40%, and has no need of making great improvement on gasoline engine. A hydrogen fuel cell serves as a power generation system.

No pollution, and no pollution to environment caused by fuel cell. It is through electrochemical reaction, rather than combustion (gasoline, diesel) or energy storage (battery) -the most typical traditional backup power scheme. Combustion releases pollutants like COx, NOx, SOx gases and dust. As described above, the fuel cell generates only water and heat. If the hydrogen is generated by renewable energy sources (photovoltaic panels, wind power generation, etc.), the whole cycle is a complete process without generating harmful emissions.

No noise, quiet fuel cell operation, about only 55dB noise, which corresponds to the level of normal human conversation. This makes the fuel cell suitable for a wide range of applications, including indoor installations, or where there is a limit to noise outdoors.

The efficiency is high, the generating efficiency of the fuel cell can reach more than 50%, which is determined by the conversion property of the fuel cell, chemical energy is directly converted into electric energy without intermediate conversion of heat energy and mechanical energy (a generator), and the efficiency is reduced once more because of once more energy conversion.

The current hydrogen production system is a relatively large system engineering, for example, the prior application patent-patent number in China is: 201420661615.4, the patent names: a hydrogen production machine using methanol water is disclosed, wherein a hydrogen production system is introduced in the patent, methanol water is vaporized into methanol steam, then the methanol steam is sent into a reformer to generate a mixed gas of hydrogen, carbon dioxide and carbon monoxide (the gas phase component of the mixed gas of hydrogen, carbon dioxide and carbon monoxide is 65-75% hydrogen, 20-26% carbon dioxide and 0.3-3% carbon monoxide), then the mixed gas of hydrogen, carbon dioxide and carbon monoxide is sent into a hydrogen separation device, and the hydrogen in the mixed gas of hydrogen, carbon dioxide and carbon monoxide is separated by the hydrogen separation device and collected. The gas phase components of the separated carbon dioxide mixed gas comprise 25-45% of hydrogen, 55-75% of carbon dioxide, 0.3-3% of carbon monoxide and 0-3% of water, and the carbon dioxide mixed gas still contains a certain amount of hydrogen and carbon dioxide, so that the part of mixed gas can still enter the hydrogen separation device again for hydrogen separation as long as the carbon dioxide mixed gas is reformed, and the cyclic utilization of the carbon dioxide mixed gas is realized.

The operation method which is thought at present is as follows: controlling the pressure and temperature of the carbon dioxide mixed gas, liquefying a part of carbon dioxide, and then remaining the rest gas which is hydrogen mixed residual gas, wherein the hydrogen mixed residual gas comprises 65-75% of hydrogen, 20-26% of carbon dioxide and 3-9% of carbon monoxide, the content of the carbon dioxide in the hydrogen mixed residual gas is controlled to be 20-26%, the carbon dioxide content is corresponding to the carbon dioxide content in the mixed gas of the hydrogen, the carbon dioxide and the carbon monoxide, and then performing water-gas-water-distribution reforming on the hydrogen mixed residual gas to generate reformed mixed gas, wherein the gas-phase components of the reformed mixed gas comprise 62-77% of hydrogen, 22-27% of carbon dioxide and 0.5-1.5% of carbon monoxide; the content of carbon monoxide in the hydrogen mixed residual gas is reduced, and the content of hydrogen components is increased to 62-77%, so that the gas-phase components of the reformed mixed gas correspond to the gas-phase components of the mixed gas of hydrogen, carbon dioxide and carbon monoxide.

The above is introduced for the current hydrogen production system, in the current hydrogen production system, the reformer of methanol steam and the water gas reforming are two independent devices, and the two devices need to be connected through a pipeline, so that the whole hydrogen production system is numerous and complex, and the hydrogen production efficiency of the hydrogen production system is low.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, the methanol steam and hydrogen mixed gas integrated reforming device is provided, and the problem that a hydrogen production system is numerous and complicated due to the fact that a reformer of the methanol steam and water gas reforming are two independent devices in the prior art is solved.

The utility model provides a technical scheme that its technical problem adopted is:

a methanol steam and hydrogen mixed gas integrated reforming device comprises a reaction cavity, wherein a heating cavity is arranged outside the reaction cavity; the reaction cavity comprises an upper reaction cavity and a lower reaction cavity, the upper reaction cavity is suitable for reforming methanol steam, the lower reaction cavity is suitable for reforming hydrogen mixed residual gas, and the upper reaction cavity is communicated with the lower reaction cavity;

copper-based filler or zirconium-based filler is filled in the upper reaction cavity, and copper-based filler or zirconium-based filler is filled in the lower reaction cavity;

the upper reaction cavity is provided with a first air inlet and a first air outlet; the first gas inlet is suitable for inputting methanol steam into the upper reaction cavity, and the first gas outlet is suitable for outputting a mixed gas of hydrogen, carbon dioxide and carbon monoxide generated in the upper reaction cavity; the lower reaction cavity is provided with a second gas inlet, and the second gas inlet is suitable for inputting hydrogen mixed residual gas into the lower reaction cavity;

the methanol steam is generated in the upper reaction cavity to form a mixed gas of hydrogen, carbon dioxide and carbon monoxide;

and the reformed mixed gas enters the upper reaction cavity, is mixed with the mixed gas of the hydrogen, the carbon dioxide and the carbon monoxide and then is output from the first gas outlet.

Further, the gas phase components of the reforming mixed gas comprise 62-77% of hydrogen, 22-27% of carbon dioxide and 0.5-1.5% of carbon monoxide;

the gas phase component of the mixed gas of hydrogen, carbon dioxide and carbon monoxide is 65-75% of hydrogen, 20-26% of carbon dioxide and 0.3-3% of carbon monoxide.

The utility model has the advantages that:

the utility model provides a methanol steam and hydrogen gas mixture integral type reforming unit, the equipment that will be used for methanol steam reforming and the equipment to the reforming of hydrogen gas mixture residual gas, integrated in same reaction chamber, make methanol steam reforming separation and hydrogen gas mixture residual gas water gas reforming operation temperature control in same interval, realize methanol water reforming unit and water gas reformer integration, optimize the overall arrangement structure of whole hydrogen manufacturing system.

On the one hand, hydrogen production is harmless and zero-state emission; on the other hand, the carbon dioxide emission reduction is made into methanol, greenhouse gas is changed into useful methanol liquid fuel, the methanol liquid fuel is taken as a hydrogenation station, the solar fuel has rich sources, light, wind, water and nuclear energy are all available, the carbon dioxide hydrogenation is used for preparing the methanol, and the methanol can be transported, stored and transported. The problems of manufacture, storage, transportation, installation and the like are solved in the whole view,

firstly, the liquid sunlight hydrogen station solves the safety problem of the high-pressure hydrogen station; secondly, the problems of storage, transportation and safety of hydrogen are solved; thirdly, hydrogen can be used as renewable energy to realize the aim of cleaning the whole process; fourthly, the liquid sunlight hydrogenation station can recover carbon dioxide, so that carbon dioxide emission reduction is realized, no further carbon dioxide is generated, and the carbon dioxide is always circulated therein; fifthly, the liquid sunlight hydrogenation station technology can be expanded to other chemical synthesis fields and can also be used for chemical hydrogenation; sixth, the system can be shared with a gas station and a methanol adding station. The system is particularly suitable for community distributed thermoelectric combined energy supply and the existing gas stations.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a schematic view of an integrated methanol-steam and hydrogen mixed gas reforming apparatus according to the present invention;

wherein, 31, an upper reaction chamber, 32, a lower reaction chamber, 33 and a heating chamber.

Detailed Description

The invention will now be further described with reference to specific embodiments. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1, the methanol steam and hydrogen mixed gas integrated reforming device comprises a reaction cavity, wherein a heating cavity 33 is arranged outside the reaction cavity; the reaction cavity comprises an upper reaction cavity 31 suitable for reforming reaction of methanol steam and a lower reaction cavity 32 suitable for reforming hydrogen mixed residual gas, and the upper reaction cavity 31 is communicated with the lower reaction cavity 32. The upper reaction chamber 31 is provided with a first air inlet and a first air outlet, and the lower reaction chamber 32 is provided with a second air inlet.

The upper reaction cavity 31 is filled with copper-based filler or zirconium-based filler, and the lower reaction cavity 32 is filled with copper-based filler or zirconium-based filler; the selection of the filler is selected according to the actual operation condition.

The heating cavity 33 is operated to control the operation temperature of the upper reaction cavity 31 and the lower reaction cavity 32, methanol vapor enters the upper reaction cavity 31 from the first gas inlet, the methanol vapor reacts with the catalyst filler to generate a mixed gas of hydrogen, carbon dioxide and carbon monoxide, and the mixed gas of hydrogen, carbon dioxide and carbon monoxide is discharged from the first gas outlet to perform hydrogen separation operation.

And the hydrogen mixed residual gas generated in the hydrogen production system enters the lower reaction chamber 32 from the second gas inlet, the hydrogen mixed residual gas reacts with the catalyst filler in the lower reaction chamber 32 to generate reformed mixed gas, the gas phase of the reformed mixed gas corresponds to the gas phase component of the mixed gas of hydrogen, carbon dioxide and carbon monoxide in the upper reaction chamber 31, and the reformed mixed gas and the gas phase component are mixed together and then output from the first gas outlet to perform hydrogen separation.

Specifically, the gas phase components of the reformed mixed gas comprise 62-77% of hydrogen, 22-27% of carbon dioxide and 0.5-1.5% of carbon monoxide; the gas phase component of the mixed gas of hydrogen, carbon dioxide and carbon monoxide is 65-75% of hydrogen, 20-26% of carbon dioxide and 0.3-3% of carbon monoxide.

The utility model discloses a methanol steam and hydrogen mixture integral type reforming unit, the water gas reforming reaction integration of the reforming reaction of methanol steam and the mixed residual gas of hydrogen is in a reaction intracavity, methanol water is at last reaction chamber 31, the mixed residual gas of hydrogen is reaction chamber 32 under, the water gas reforming reaction that makes the reforming reaction of methanol steam and the mixed residual gas of hydrogen is at same temperature interval, it is integrative to realize the water gas reforming reaction of the reforming reaction of methanol steam and the mixed residual gas of hydrogen, optimize the overall arrangement structure of whole hydrogen manufacturing system.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (2)

1. A methanol steam and hydrogen mixed gas integrated reforming device is characterized by comprising a reaction cavity, wherein a heating cavity is arranged outside the reaction cavity; the reaction cavity comprises an upper reaction cavity and a lower reaction cavity, the upper reaction cavity is suitable for reforming methanol steam, the lower reaction cavity is suitable for reforming hydrogen mixed residual gas, and the upper reaction cavity is communicated with the lower reaction cavity;

copper-based filler or zirconium-based filler is filled in the upper reaction cavity, and copper-based filler or zirconium-based filler is filled in the lower reaction cavity;

the upper reaction cavity is provided with a first air inlet and a first air outlet; the first gas inlet is suitable for inputting methanol steam into the upper reaction cavity, and the first gas outlet is suitable for outputting a mixed gas of hydrogen, carbon dioxide and carbon monoxide generated in the upper reaction cavity; the lower reaction cavity is provided with a second gas inlet, and the second gas inlet is suitable for inputting hydrogen mixed residual gas into the lower reaction cavity;

the methanol steam is generated in the upper reaction cavity to form a mixed gas of hydrogen, carbon dioxide and carbon monoxide;

and the reformed mixed gas enters the upper reaction cavity, is mixed with the mixed gas of the hydrogen, the carbon dioxide and the carbon monoxide and then is output from the first gas outlet.

2. The integrated methanol-steam and hydrogen mixed gas reforming device as claimed in claim 1, wherein the reformed mixed gas comprises 62 to 77% of hydrogen, 22 to 27% of carbon dioxide, and 0.5 to 1.5% of carbon monoxide;

the gas phase component of the mixed gas of hydrogen, carbon dioxide and carbon monoxide is 65-75% of hydrogen, 20-26% of carbon dioxide and 0.3-3% of carbon monoxide.

Images