Peroxyacetyl nitrate gas dynamic online generation device and method

A technology of peroxyacetyl nitrate and generating device is applied in the field of peroxyacetyl nitrate gas dynamic on-line generating devices, and can solve the problems of inability to real-time online dynamic adjustment of gas production concentration, low utilization rate of acetone gas, poor precision and the like , to achieve the effect of dynamically controllable concentration, improving utilization rate and satisfying calibration requirements

Active Publication Date: 2017-07-14
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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Problems solved by technology

[0006] In order to overcome the defects of low acetone gas utilization rate, poor accuracy and real-time online dynamic adjustment of gas concentration in the prior art, the purpose of the present invention is to provide a Device and method for dynamic on-line generation of peroxyacetyl nitrate gas to realize dynamic on-line generation of standard peroxyacetyl nitrate gas and improve acetone gas utilization, gas production accuracy and response speed

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  • Peroxyacetyl nitrate gas dynamic online generation device and method
  • Peroxyacetyl nitrate gas dynamic online generation device and method
  • Peroxyacetyl nitrate gas dynamic online generation device and method

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[0027] All features disclosed in this specification, or all disclosed steps in a method or process, may be combined in any way except mutually exclusive features and / or steps.

[0028] Any feature disclosed in this specification, unless expressly stated otherwise, may be replaced by other equivalent or alternative features serving a similar purpose. That is, unless expressly stated otherwise, each feature is but one example of a series of equivalent or similar features.

[0029] The structure and principle of the device for dynamic on-line generation of peroxyacetyl nitrate gas of the present invention will be described in detail below.

[0030] figure 1 A schematic structural diagram of a device for dynamic online generation of peroxyacetyl nitrate gas according to an exemplary embodiment of the present invention is shown.

[0031] like figure 1As shown, according to an exemplary embodiment of the present invention, the peroxyacetyl nitrate gas dynamic on-line generating d...

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Abstract

The invention discloses a peroxyacetyl nitrate gas dynamic online generation device and method. The peroxyacetyl nitrate gas dynamic online generation device comprises a zero air generation unit, a NOx gas generation unit, an acetone gas generation unit, a mixer and a gas continuous photolysis reaction conversion unit. The method adopts the peroxyacetyl nitrate gas dynamic online generation device. The peroxyacetyl nitrate gas dynamic online generation device and method have the beneficial effects that the acetone photolysis process is controlled so as to increase the utilization rate of an acetone gas and ensure the full conversion of a NOx gas; meanwhile, residual acetone and ACO3 free radicals are eliminated at the rear end, and the thermal conversion of a PAN (peroxyacetyl nitrate) gas is weakened; the PAN standard gas with given concentration is generated continuously online in the end; the concentration of the PAN gas is dynamically controllable; and the standardization requirements of various detection equipment can be satisfied.

Description

technical field [0001] The present invention relates to the technical field of gas generation, and more particularly, to a dynamic online generation device and method of peroxyacetyl nitrate gas. Background technique [0002] Peroxyacetyl nitrate (PAN) is a secondary product of atmospheric photochemical reactions, which can promote the formation of photochemical oxidant ozone, one of the important indicators of photochemical smog pollution, and its pyrolysis process is also an important source of nitrogen oxides in remote areas. . PAN has a strong tear-inducing effect, has a carcinogenic effect on the human body, and also has a stimulating effect on the human respiratory system. In addition, PAN is also a poison to plants, which will kill trees and reduce crop yields. Therefore, online monitoring of PAN concentration in the atmosphere is of great significance for environmental protection governance. [0003] The concentration of PAN in the atmosphere is low, generally in ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J7/00C07C407/00C07C409/40
CPCB01J7/00C07C407/00C07C409/40
Inventor 王竹青付大友袁东谭文渊杨冰张洪
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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