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Light tracking based oil shale pyrolysis gas detection device and method

A detection method, a technology of pyrolysis gas, applied in measuring devices, material analysis through optical means, instruments, etc., can solve problems such as inability to measure synchronously, and achieve the effect of simple optical path design, maintenance of measurement accuracy, and convenient use

Inactive Publication Date: 2014-09-03
CHINA UNIV OF PETROLEUM (BEIJING) +1
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Problems solved by technology

[0005] In view of this situation, the present invention proposes an oil shale pyrolysis gas detection device and detection method based on optical tracking, which can utilize the characteristics of THz pulses to allow the terahertz waves to pass through the gas generated during the pyrolysis reaction. Pyrolysis gas, in order to realize the purpose of tracking pyrolysis gas with terahertz spectroscopy technology, which solves the long-standing problem of inability to measure synchronously during pyrolysis

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  • Light tracking based oil shale pyrolysis gas detection device and method
  • Light tracking based oil shale pyrolysis gas detection device and method
  • Light tracking based oil shale pyrolysis gas detection device and method

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[0029] In order to have a clearer understanding of the technical scheme, purpose and effect of the present invention, descriptions are now given with reference to the accompanying drawings.

[0030] The purpose of the invention is to provide matching gas detection for a terahertz time-domain spectrometer, and can use the terahertz spectroscopic technology to track the gas produced by the pyrolysis reaction of oil shale. Its basic idea is to design a terahertz optical path in a pyrolysis environment with set temperature and pressure conditions, so that the terahertz wave is transmitted through the pyrolysis gas, and then received by the spectrometer. According to the pyrolysis environment conditions, use Spectral changes characteristically measure the characteristics of pyrolysis reactants. The form of the optical path is to let the terahertz wave pass through the gas from the positive and negative directions at two different times in the space of the gas reactant during one me...

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Abstract

The invention discloses a light tracking based oil shale pyrolysis gas detection device and method. The device comprises a gas sealing structure, a material putting mechanism and two mirror groups; each mirror group comprises two mutually vertical mirrors, a terahertz entrance window and a terahertz exit window, wherein the two mirrors are in linkage by an axis of rotation; terahertz wave enters from the entrance windows and exits from the exit windows after being reflected by the two mirror groups. The detection method is characterized in that a terahertz light path is constructed in an environment with set temperature and pressure and lies in that in the primary measuring range, the terahertz wave passes through the gas from the forward and backward directions respectively at two different moments and then is emitted in the space of a gas reactant. The device and the method have the advantages that the terahertz wave is introduced into pyrolysis tracking to detect the spectral information of the gas in the sealing structure; the dynamical characteristics of oil shale structure change are represented by utilizing the strength and phase change of a terahertz time-domain signal.

Description

Technical field: [0001] The invention belongs to pyrolysis gas detection technology, in particular to a detection device and detection method for oil shale pyrolysis gas by using terahertz spectrum technology. Background technique: [0002] Pyrolysis reaction is an important type of reaction, which refers to the decomposition reaction of substances under the condition of heat, which widely exists in inorganic and organic substances. There are many pyrolysis processes of organic matter with industrial significance, which often have different names depending on the specific process, and can be used to obtain various petrochemical basic raw materials. Pyrolysis reactions often generate gaseous substances, and the physical and chemical properties of the gases are of great significance for judging the state of the reaction process and understanding the composition and composition of the reaction substances. Oil shale is a combustible organic rock composed of organic matter and i...

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Application Information

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IPC IPC(8): G01N21/3504G01N21/3586
Inventor 宝日玛李羿璋吴航赵昆李术元
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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