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Cylindrical high-temperature thermal tube-based concentrated solar distributed thermal reforming hydrogen production system

A technology of concentrating solar energy and high-temperature heat pipes, applied in the direction of hydrogen, energy input, separation methods, etc., can solve the problems of difficult carbon dioxide capture, high energy consumption, etc., and achieve the effects of reducing complexity, improving low reaction temperature, and avoiding cleaning

Inactive Publication Date: 2018-01-19
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a concentrating solar thermochemical hydrogen production technology device based on a cylindrical high-temperature heat pipe. Integrate disadvantages such as difficulties, reduce energy consumption for hydrogen production, reduce carbon emissions in the process and improve energy grade

Method used

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  • Cylindrical high-temperature thermal tube-based concentrated solar distributed thermal reforming hydrogen production system
  • Cylindrical high-temperature thermal tube-based concentrated solar distributed thermal reforming hydrogen production system
  • Cylindrical high-temperature thermal tube-based concentrated solar distributed thermal reforming hydrogen production system

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Embodiment 1

[0025] The method of producing high-purity hydrogen (purity>99.9%) using water and methane as raw materials using a cylindrical high-temperature heat pipe-based concentrating solar thermochemical hydrogen production system is as follows:

[0026] (1) Feeding and preheating: Check that all valves are closed, open the cooling water inlet valve, and then slowly rotate the pressure reducing valve and water valve at the same time to feed CH4 and H2O into the pipeline at constant pressure and constant flow, water Firstly through the steam generator 2, CH4 enters the tube side of the first heat exchanger 1-1, the water vapor flowing out of the steam generator 2 is mixed with the CH4 flowing out of the tube side of the first heat exchanger 1-1, and then passed through the feed tube Enter the reactor body, then turn on the solar biaxial electric control system, the solar concentrating device tracks the sun and starts to heat the cylindrical high-temperature heat pipe reactor;

[0027] ...

Embodiment 2

[0031]The method of producing high-purity hydrogen (purity>99.9%) using a cylindrical high-temperature heat pipe-based concentrating solar thermochemical hydrogen production system using carbon dioxide and methane as raw materials is as follows:

[0032] (1) Feeding and preheating: Check that all valves are closed, slowly rotate the pressure reducing valve to feed CO2 into the pipeline at a constant pressure, turn on the solar dual-axis electric control system, and the solar concentrating device 3 will track the sun and Start to heat the cylindrical high-temperature heat pipe reactor 4. The CO2 flowing through the reactor body is heated to 800-1000°C by the solar concentrating device. After the residual gas in the pipeline is evacuated, the inlet valve of the cooling water pipeline is opened. The high-temperature CO2 gas passes into the shell of the second heat exchanger 1-2, and heats the water flowing through the tube to about 90°C. The heated water enters the shell of the fi...

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Abstract

The invention belongs to the technical field of applications of heat tubes, and provides a cylindrical high-temperature thermal tube-based concentrated solar distributed thermal reforming hydrogen production system. The system comprises a raw material preheating part, a reactor body part, a gas purification part and a hydrogen storage part; and the raw material preheating part, the reactor body part, the gas purification part and the hydrogen storage part are sequentially communicated. The system realizes distributed hydrogen production through directly utilizing solar energy, and a reactor isconstructed by using a cylindrical high-temperature thermal tube to realize the direct coupling of a heat receiving device and the chemical rector, so the complexity of a solar thermochemical hydrogen production device is remarkably reduced; the problem of heating of a three-dimensional tubular reaction area by using two-dimensional annular condensation spots is solved by using the cylindrical high-temperature thermal tube, so the problem of low reaction temperature of an indirect hydrogen production reactor is effectively improved; and the indirect reactor is constructed to effectively avoidthe cleanness and air tightness keeping problem of the quartz window of the direct reactor.

Description

technical field [0001] The invention belongs to the technical field of heat pipe application, and relates to a concentrated solar energy distributed thermal reforming hydrogen production system based on a cylindrical high-temperature heat pipe. Background technique [0002] The transport sector accounts for a high proportion of greenhouse gas (GHG) emissions in major cities around the world. The current high carbon emissions are due to the fact that GHG emissions from the transport sector are closely related to the fuel type of the vehicle. [0003] At present, the development of traditional fossil fuel vehicles has exposed some problems, the most prominent of which are the massive emission of greenhouse gases and the aggravation of air pollution. Due to its high energy density (2.37kW·h / dm3) and clean combustion products, hydrogen energy has attracted widespread attention as a clean alternative energy source. In recent years, the rapid development and commercialization of...

Claims

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Application Information

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IPC IPC(8): B01D53/047C01B3/38B01J8/06
CPCY02P20/133
Inventor 唐大伟蒋博袁达忠孙阳郑金昊李梦帆张传奇王东兴冯宇王硕
Owner DALIAN UNIV OF TECH
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