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Thermochemical hydrogen production system based on microwave heating and hydrogen production method and application thereof

A technology of microwave heating and hydrogen production system, which is applied in the fields of chemical instruments and methods, inorganic chemistry, hydrogen, etc. It can solve the problems of catalyst sintering deactivation, high economic cost, and lengthy heating time, etc., and achieve shortened cycle time and low energy consumption , Reduce the effect of radiation heat loss and heat dissipation loss

Active Publication Date: 2020-06-19
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the inventor believes that in the process of evaluating the hydrogen production performance of catalysts, the economic cost of using a solar concentrator simulator as a heat source is too high, and the temperature required for high-temperature pyrolysis of metal oxides is often as high as about 1500°C. The long heating time leads to an experiment cycle of about 1.5-2 hours. The catalyst is prone to sintering deactivation when the catalyst is kept at such a high temperature for a long time. Therefore, in terms of experiment cycle, experiment cost and energy efficiency, etc. there are still many problems

Method used

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  • Thermochemical hydrogen production system based on microwave heating and hydrogen production method and application thereof
  • Thermochemical hydrogen production system based on microwave heating and hydrogen production method and application thereof
  • Thermochemical hydrogen production system based on microwave heating and hydrogen production method and application thereof

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no. 1 example

[0062] first embodiment ,refer to figure 1 , an example of a thermochemical hydrogen production device based on microwave heating designed in the present invention, including a carrier gas storage device 1, a flow controller 2, a preheater 3, a first three-way valve 4, a second three-way valve 5, a microwave Generating device 6, reactor 7, condenser 9, drying device 10, chromatograph 11, collecting device 12, steam generator 13, superheater 14, resistance furnace 15 and piping systems for connecting various equipment.

[0063] Wherein, the inlet of the preheater 3 communicates with the carrier gas storage device 1, and a flow controller 2 is arranged between them. The carrier gas storage device 1 is used to store nitrogen, inert gas, etc., and the main function of the carrier gas is to carry the water vapor generated by the steam generator 13 .

[0064] The outlet of the preheater 3 communicates with the inlet of the steam generator 13 and one end of the second three-way va...

no. 2 example

[0069] second embodiment , the condenser is a jacketed structure, the jacket is provided with a water inlet and a water outlet, and the circulation of the condensate in the jacket can be realized through a pumping device. The lower end of the condenser also includes a trap for storing liquid water condensed from the gaseous products. Since the oxygen / hydrogen gas from the reactor is generated at high temperature during the reaction process, it is necessary to cool down these gases before collecting them to ensure the safety of gas storage; in addition, hydrogen will also contain some unreacted Therefore, it is necessary to remove the water vapor through condensation to ensure the purity of the collected hydrogen.

no. 3 example

[0070] third embodiment , the drying device 10 adopts a water removal device, and the water removal device is a container filled with discoloration silica gel, and the gaseous product enters the water removal device under the push of the carrier gas to realize dehydration. Since the hydrolysis reaction of hydrogen production requires superheated steam to react with metal oxides in a low oxidation state, the obtained hydrogen contains unreacted water vapor. In order to ensure the purity of the collected hydrogen, it is necessary to A drying device is further used to ensure that the hydrogen is dry.

[0071] Fourth embodiment , the reactor is made of quartz, since the reactor is a place for thermal reduction reaction, the reactor needs to be able to withstand the temperature environment required for the reaction, and the high temperature resistance of quartz can well meet the above conditions.

[0072] fifth embodiment, the connecting pipes between the reactor inlet and th...

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Abstract

The invention belongs to the technical field of thermochemical hydrogen production, and particularly relates to a thermochemical hydrogen production system based on microwave heating and a hydrogen production method and application thereof. A hydrogen production device is characterized in that an inlet of a preheater is communicated with a carrier gas storage device, a flow controller is arrangedbetween the preheater and the carrier gas storage device, an outlet of the preheater is respectively communicated with an inlet of the steam generator and one end of a second three-way valve through afirst three-way valve, the other two ports of the second three-way valve are respectively communicated with an outlet of a superheater and an inlet of the reactor, the reactor is arranged in a microwave generation device, an outlet of the steam generator is communicated with the outlet of the superheater through a pipeline, an outlet of the reactor, a condenser, a drying device and a collecting device are sequentially communicated, and a chromatographic instrument is arranged on the communicating pipeline between the drying device and the collecting device. The microwave pyrolysis of the metal oxide is short in heating time, low in power consumption and low in experiment cost, the repeated experiment period is shortened, and the effective energy utilization rate is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of thermochemical hydrogen production, and in particular relates to a thermochemical hydrogen production system based on microwave heating and a hydrogen production method and application thereof. Background technique [0002] The information disclosed in the Background of the Invention is only intended to increase the understanding of the general background of the invention, and it is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. [0003] Since the 21st century, countries around the world have paid great attention to the issues of carbon dioxide emissions and global warming. People's development and utilization of energy has gradually turned to gaseous fuels such as natural gas and hydrogen, and hydrogen energy, as the most ideal renewable energy carrier, has the advantages of abund...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/06
CPCC01B3/063Y02E60/36
Inventor 毛岩鹏高一博王文龙宋占龙赵希强孙静
Owner SHANDONG UNIV
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