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A new application of a selective light-absorbing material and a new photothermal system
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A light-absorbing material and selective technology, applied in the direction of solar thermal power generation, solar collector heat insulation, physical/chemical process catalyst, etc., to achieve the effect of reducing cost, convenient access and easy industrial application
Active Publication Date: 2020-11-10
HEBEI SAITECHI EXPERIMENTAL EQUIP SALES CO LTD
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But so far, there is no effective way to change the thermal radiation properties of photothermal materials.
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Embodiment 1
[0037] Application of loaded highly active WFeO two-dimensional nanosheet catalyst for NOx reduction:
[0038] (1) A highly active WFeO two-dimensional nanosheet catalyst was prepared.
[0039] (2) Weigh 0.5 g of the catalyst and disperse it ultrasonically with 10 ml of ethanol.
[0040] (3) Irradiate the selective light-absorbing material with the all-glass vacuum insulation layer under outdoor sunlight for 15 minutes.
[0041] (4) Uniformly coating the ultrasonically dispersed catalyst suspension on the selective light-absorbing material of the vacuum heat insulation layer.
[0042] (5) After the ethanol volatilizes, the catalyst will be evenly loaded.
[0043] (6) Carry out a catalytic test to measure the NOx conversion efficiency. The result is as Figure 8-10 shown.
Embodiment 2
[0045] Loaded highly active Ni-Y 2 o 3 Two-dimensional nanosheet catalyst for CO 2 Hydromethanation Applications:
[0046] (1) Preparation of highly active Ni-Y 2 o 3 Two-dimensional nanosheet catalysts.
[0047] (2) Weigh 0.5 g of the catalyst and disperse it ultrasonically with 10 ml of ethanol.
[0048] (3) Irradiate the selective light-absorbing material with the all-glass vacuum insulation layer under outdoor sunlight for 15 minutes.
[0049] (4) Uniformly coating the ultrasonically dispersed catalyst suspension on the selective light-absorbing material of the vacuum heat insulation layer.
[0050] (5) After the ethanol volatilizes, the catalyst will be evenly loaded.
[0051] (6) Carry out catalytic test and measure CO 2 Conversion efficiency. The result is as Figure 11-12 shown.
[0052] In the technical scheme of the present invention, the WFeO nanosheets, MnZrWO nanosheets, MnZrWO airgel, Ni-doped Y 2 o 3 Nanosheets can be prepared by the following metho...
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Abstract
A photothermal catalyst system and a preparation method therefor. The catalyst system comprises a catalyst, a selective light absorbing material, and a vacuum thermal insulating layer; the vacuum thermal insulating layer is located on the surface of one side of the selective light absorbing material, and the catalyst is disposed on the surface of the other side of the selective light absorbing material; the selective light absorbing material is a material having a solar energy absorption rate over 95% and a thermal radiation rate lower than 10%, and is specifically graded aluminum nitride-aluminum, tungsten-aluminum nitride, and molybdenum-aluminum oxide. The preparation method is preparing the vacuum thermal insulating layer outside the selective light absorbing material, placing same under outdoor sunlight for 15 min, and uniformly coating the selective light absorbing material with a catalyst suspension solution ultrasonically dispersed by ethanol, so that after ethanol is evaporated, the catalyst is uniformly borne.
Description
technical field [0001] The invention belongs to the technical field of energy utilization, and relates to a new application of a selective light-absorbing material and a new photothermal system. Background technique [0002] With population growth and industrial development, energy and the environment have become the main issues facing human beings. Catalysis is a powerful tool to solve environmental and energy problems, and has been widely used in various industries. However, many industrial catalysis generally require thermal excitation, which consumes huge amounts of electrical energy and other secondary energy sources. How to reduce the energy consumption of industrial thermal catalysis has become a major problem in the industry. Solar energy is a renewable and clean energy, converting solar energy into thermal energy is the oldest way for human beings to utilize solar energy. Therefore, converting sunlight into thermal energy to drive thermocatalysis is currently a h...
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Application Information
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Patent Type & Authority Patents(China)
IPC IPC(8): F24S70/225F24S80/60
CPCB01J23/89F24S70/225F24S80/60Y02E10/40
Inventor 李亚光
Owner HEBEI SAITECHI EXPERIMENTAL EQUIP SALES CO LTD
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