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Photocatalytic reaction differential automatic test system

An automatic test system and photocatalytic reaction technology, which is applied in the field of catalytic chemical reaction test experimental system, can solve the problems of lack of reaction pressure control, etc., and achieve the effect of simple and clear system, simple connection and easy uniform distribution

Inactive Publication Date: 2012-02-01
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] At present, in the photocatalytic reaction process, there is a general lack of control over the reaction pressure, and the integral measurement method is usually used; after searching and searching various patents and literatures, it has been shown that there is no report on the differential automatic test of the reaction. There are no reports of similar devices

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  • Photocatalytic reaction differential automatic test system
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  • Photocatalytic reaction differential automatic test system

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Embodiment Construction

[0031] The content of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, the photocatalytic reaction differential automatic test system: in this system, the magnetic stirrer 1 is located at the bottom of the photocatalytic reactor 2, and its right side is a xenon lamp point light source 3 (the horizontal side of the light path faces the photocatalytic reactor 2, from left to Right to the light-receiving surface), which is connected to the grinding port, which is used to connect the split air pipe 4. The split air pipe 4 has four ports, the upper and lower are grinding ports, and the left and right are branch pipes; the upper grinding port is connected to the condenser pipe 5; the left branch pipe is connected to the three-way valve 8-1, and the right branch pipe is the circulating gas outlet, which is connected to the circulating pump 6 through the pipeline and the continuous analy...

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Abstract

The invention discloses a photocatalytic reaction differential automatic test system, which includes a reaction part composed of a magnetic stirrer, a reactor, a xenon lamp light source, etc.; a gas circulation pump, a spherical glass condenser, a gas chromatograph, a reaction A circulation part composed of a gas flow meter, a steady flow valve, a digital pressure gauge and a vacuum pump; a pressure control part composed of a constant temperature circulation pump, a reactor temperature control jacket and a spherical glass condenser A temperature control part composed of tubes, etc.; a measurement control part composed of continuous analyzer, gas chromatograph, data acquisition board and computer. The system is used for the test of photocatalytic hydrogen production. The carrier gas is used to take the gas products out of the reactor to achieve differential measurement. The reaction temperature and reaction pressure can be set, and the instant hydrogen production rate of the photocatalytic reaction can be obtained accurately and in time. It can be used for other photocatalytic reaction tests that involve or generate gases.

Description

technical field [0001] The invention belongs to a catalytic chemical reaction test experimental system, in particular to a photocatalytic reaction differential automatic test system. Background technique [0002] The basic principle of semiconductor photocatalytic reaction is: when a semiconductor photocatalyst is irradiated by sunlight (mainly visible light and ultraviolet light), the electrons inside it are excited to transition from the valence band to the conduction band, generating free electrons and holes. When electrons and holes migrate to the semiconductor surface, they interact with the adsorbed substances; for aqueous solutions, they can react to generate hydrogen or oxygen or both. The speed of photocatalytic reaction is affected by many factors such as catalyst, reaction solution, reactor, light source (spectrum and irradiance, etc.), reaction temperature and pressure, and some of these conditions are actively controlled to reflect the intrinsic characteristics ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02G01N30/28
Inventor 郭烈锦刘欢
Owner XI AN JIAOTONG UNIV
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