CN-224221305-U - Methanol reforming hydrogen production device based on solar energy and tail gas utilization

CN224221305UCN 224221305 UCN224221305 UCN 224221305UCN-224221305-U

Abstract

The utility model discloses a methanol reforming hydrogen production device based on solar energy and tail gas utilization, which relates to the fields of new energy utilization and chemical production, and comprises a solar heat collector and a methanol reforming reactor; the solar heat collector comprises a groove type parabolic condenser, sunlight irradiates the condenser and is reflected to a focusing point, the methanol reforming reactor is positioned at the light reflection focusing point of the groove type parabolic condenser and comprises an aluminum alloy pipe, a tail gas flow pipe, a methanol reforming pipe, an air inlet pipe and an air outlet pipe, the tail gas flow pipe is embedded in the aluminum alloy pipe, a plurality of methanol reforming pipes are distributed in an interlayer of the aluminum alloy pipe, the air inlet pipe and the air outlet pipe are communicated with all the methanol reforming pipes, the aluminum alloy pipe absorbs heat generated by sunlight, the tail gas flow pipe absorbs waste heat of tail gas flowing through the inside of the tail gas pipe and supplies heat for the methanol reforming pipes together, and methanol steam enters the methanol reforming pipes through the air inlet pipe and reacts in the methanol reforming pipes to generate reformed gas rich in hydrogen and is discharged from the air outlet pipe.

Inventors

ZHANG LE
WU YALI
YUAN ZHIPENG
JIN JUNHAO
WANG YUNFEI
Liao Wenna
LIU ZIHENG
LI SIJIAN
LIU YUAN
XU JIAHAO

Assignees

中南林业科技大学

Dates

Publication Date: 20260512
Application Date: 20250527

Claims (7)

1. The methanol reforming hydrogen production device based on solar energy and tail gas utilization is characterized by comprising a solar heat collector (10) and a methanol reforming reactor (20); The solar heat collector (10) comprises a groove type parabolic condenser (11), sunlight irradiates the groove type parabolic condenser (11) and is reflected to a focusing point, the methanol reforming reactor (20) is of a tubular structure and is positioned at a light reflection focusing point of the groove type parabolic condenser (11); The methanol reforming reactor (20) comprises an aluminum alloy pipe (22), a tail gas flow pipe (23), a methanol reforming pipe (24), an air inlet pipe (25) and an air outlet pipe (26); a tail gas flow pipe (23) is nested in the aluminum alloy pipe (22), a plurality of methanol reforming pipes (24) are distributed in the interlayer of the tail gas flow pipe and the aluminum alloy pipe, and an air inlet pipe (25) and an air outlet pipe (26) are communicated with all the methanol reforming pipes (24); The aluminum alloy tube (22) absorbs heat generated by sunlight, the tail gas flow tube (23) absorbs waste heat of tail gas flowing in the tail gas flow tube and supplies heat for the methanol reforming tube (24) together; The methanol vapor enters the methanol reforming tube (24) through the air inlet tube (25), the methanol reforming reaction occurs in the methanol reforming tube (24) to generate reformed gas rich in hydrogen, and the reformed gas is discharged from the air outlet tube (26).
2. The hydrogen production apparatus by reforming methanol based on solar energy and tail gas utilization as defined in claim 1, wherein a catalyst CuO/ZnO/Al 2 O 3 is attached to an inner wall of the methanol reforming tube (24).
3. The methanol reforming hydrogen plant based on solar energy and tail gas utilization as defined in claim 1, wherein the methanol reforming reactor (20) further comprises a transparent glass tube (21), an aluminum alloy tube (22) is nested inside the transparent glass tube (21), the transparent glass tube (21) can be penetrated by sunlight, and an interlayer between the transparent glass tube (21) and the aluminum alloy tube (22) is vacuumized to form an insulating layer.
4. A methanol reforming hydrogen plant based on solar and tail gas utilization as defined in claim 1, characterized in that the methanol reforming reactor (20) further comprises a temperature sensor located in the sandwich of aluminum alloy tube (22) and tail gas flow tube (23).
5. The methanol reforming hydrogen production device based on solar energy and tail gas utilization as defined in claim 4, wherein a platinum-based catalytic combustion catalyst is attached to the inner wall of the tail gas flow pipe (23), the SOFC anode tail gas is circulated inside the tail gas flow pipe (23) in a normal state, when the temperature detected by the temperature sensor is lower than a preset threshold value, a user introduces a mixed gas of the SOFC anode tail gas and the SOFC cathode tail gas into the tail gas flow pipe (23), and the mixed gas is subjected to a combustion reaction under the catalysis of the platinum-based catalytic combustion catalyst.
6. The methanol reforming hydrogen plant based on solar energy and tail gas utilization as defined in claim 1, wherein the solar heat collector (10) further comprises a support bracket (12), an electric push rod (13), a central rotating platform (14) and a base (15); The central rotating platform (14) is arranged on the base (15), the support body bracket (12) is arranged above the central rotating platform (14), the support body bracket (12) comprises two brackets connected through a shaft, one bracket is arranged on the central rotating platform (14), and the other bracket is provided with the groove type parabolic condenser (11), and two ends of the electric push rod (13) are respectively connected with the two brackets; the central rotating platform (14) enables the upper structure to rotate, and the electric push rod (13) stretches and contracts to change the included angle of the two brackets, so that the inclination angle of the upper groove type parabolic condenser (11) is changed.
7. The methanol reforming hydrogen plant based on solar energy and tail gas utilization as defined in claim 6, wherein the solar heat collector (10) further comprises a light sensor (16), the light sensor (16) and the trough type parabolic condenser (11) are mounted on the same bracket, a four-quadrant layout photoresistor array is arranged inside the light sensor (16), and the incident light angle is detected and fed back to a user.

Description

Methanol reforming hydrogen production device based on solar energy and tail gas utilization Technical Field The utility model relates to the technical field of new energy utilization and chemical production, in particular to a methanol reforming hydrogen production device based on solar energy and tail gas utilization. Background The existing methanol reforming hydrogen production process is high in reaction heat absorption capacity, usually needs an external heat source for continuous heating, and mostly depends on fossil fuel (such as natural gas or industrial steam), so that the cost is high, and a large amount of pollutants and carbon dioxide emission can be generated. In contrast, solar energy has the characteristics of cleanliness and reproducibility, and meanwhile, high-temperature tail gas generated in a Solid Oxide Fuel Cell (SOFC) system also contains considerable waste heat. If the solar energy and the SOFC tail gas waste heat can be cooperatively utilized, the dependence on traditional fossil energy sources can be obviously reduced, the overall energy efficiency can be improved, and the environmental pollution can be reduced. Therefore, the development of the methanol reforming hydrogen production device combining solar energy and tail gas waste heat utilization has important significance for realizing efficient and environment-friendly hydrogen production. Disclosure of utility model The utility model aims to provide a methanol reforming hydrogen production device and a method combining solar energy and tail gas utilization, which are used for efficiently supplying heat, reducing the dependence on traditional energy, improving the energy efficiency and reducing pollution. The technical scheme of the utility model is that the methanol reforming hydrogen production device based on solar energy and tail gas utilization comprises a solar heat collector and a methanol reforming reactor; The solar heat collector comprises a groove-type parabolic condenser, sunlight irradiates the groove-type parabolic condenser and is reflected to a focusing point, the methanol reforming reactor is of a tubular structure and is positioned at a light reflection focusing point of the groove-type parabolic condenser; the methanol reforming reactor comprises an aluminum alloy pipe, a tail gas flow pipe, a methanol reforming pipe, an air inlet pipe and an air outlet pipe; a tail gas flow pipe is nested in the aluminum alloy pipe, a plurality of methanol reforming pipes are distributed in the interlayer of the tail gas flow pipe and the aluminum alloy pipe, and the air inlet pipe and the air outlet pipe are communicated with all the methanol reforming pipes; the aluminum alloy tube absorbs heat generated by sunlight, the tail gas flow tube absorbs waste heat of tail gas flowing through the tail gas flow tube, and the tail gas flow tube supplies heat for the methanol reforming tube; The methanol vapor enters the methanol reforming tube from the air inlet tube, the methanol reforming reaction occurs in the methanol reforming tube to generate reformed gas rich in hydrogen, and the reformed gas is discharged from the air outlet tube. In any of the above technical solutions, further, a catalyst CuO/ZnO/Al 2O3 is attached to the inner wall of the methanol reforming tube. In any of the above technical schemes, the methanol reforming reactor further comprises a transparent glass tube, wherein the transparent glass tube is internally nested with an aluminum alloy tube, the transparent glass tube can be penetrated by sunlight, and an interlayer between the transparent glass tube and the aluminum alloy tube is vacuumized to form an insulating layer. In any of the above technical solutions, further, the methanol reforming reactor further includes a temperature sensor, where the temperature sensor is located in an interlayer of the aluminum alloy pipe and the tail gas flow pipe. In any one of the above technical solutions, further, a platinum-based catalytic combustion catalyst is attached to an inner wall of the exhaust flow pipe, in a normal state, SOFC anode exhaust is circulated inside the exhaust flow pipe, when the detected temperature of the temperature sensor is lower than a preset threshold value, a user introduces a mixed gas of SOFC anode exhaust and SOFC cathode exhaust into the exhaust flow pipe, and the mixed gas undergoes a combustion reaction under the catalysis of the platinum-based catalytic combustion catalyst. In any one of the above technical schemes, the solar heat collector further comprises a support bracket, an electric push rod, a central rotating platform and a base; The central rotating platform is arranged on the base, a support body bracket is arranged above the central rotating platform and comprises two brackets connected through a shaft, wherein one bracket is arranged on the central rotating platform, and a groove-type parabolic condenser is arranged above the other bracket; the central rotating platf