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Device and system for preprocessing on-line raman spectrometer as well as preprocessing method thereof

A pretreatment device and Raman spectrometer technology, which is used in Raman scattering, preparation of samples for testing, material excitation analysis, etc. Accuracy reduction and other problems, to achieve the effect of improving detection quality and detection efficiency, improving impurity removal effect, and low cost

Inactive Publication Date: 2013-05-08
NANJING TECH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Raman measurements are less accurate because background fluorescence often affects
There is no obvious Raman peak in the fluorescence Raman spectrum, it is difficult to distinguish the effective Raman peak, and it is impossible to interpret the sample component information from it

Method used

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  • Device and system for preprocessing on-line raman spectrometer as well as preprocessing method thereof
  • Device and system for preprocessing on-line raman spectrometer as well as preprocessing method thereof
  • Device and system for preprocessing on-line raman spectrometer as well as preprocessing method thereof

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Embodiment Construction

[0034] The device of the present invention is applied to the pretreatment of the Raman spectrometer on the PX device in the petrochemical industry. Because the Raman spectrum detection does not damage the sample, it does not require a large amount of sample preparation, and only a small amount of representative samples are required. The general sample can be installed in Direct measurement in the capillary. Even in a large-scale device, only a small amount of samples needs to be obtained, so the structure of the device of the present invention is relatively small.

[0035] In the following, in combination with preferred embodiments, the specific implementations, features and effects provided in accordance with the present invention will be described in detail. For the purpose of simplicity and clarity, the description of the known technology is appropriately omitted below to avoid unnecessary details affecting the technology. The description of the scheme.

[0036] Such as figure ...

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Abstract

The invention relates to a device and system for preprocessing an on-line raman spectrometer as well as preprocessing method thereof. The method comprises the following steps: preprocessing a detected sample before detecting the sample of a PX (p-Xylene) device by using the raman spectrometer; and then absorbing and removing the impurities of the detected sample by using adsorption treatment reaction jars, wherein at least two adsorption treatment reaction jars are used for performing the absorption and blowing treatment in turn, so that the whole preprocessing process is free from being influenced by the absorption saturation degree of the adsorption treatment reaction jars and can be continuously performed. The method provided by the invention has the advantages of high recovery, low cost, less investment, no pollution, and the like. The processes of on-site sample collecting, cooling treatment, unsaturated hydrocarbon removing and counter sample treatment are taken into account. The device, system and method provided by the invention can be applied to different fields of petrifaction, metallurgy, mining electric power, steelmaking, and the like, and have the advantages of strong adaptability to user requirements, obvious effect and excellent stability.

Description

Technical field [0001] The invention belongs to the field of petrochemical automation monitoring technology, and is used for the pretreatment of the Raman spectrometer in real-time online monitoring of the components in the PX device, and realizes the effective fluorescence elimination of the detected samples in the PX device, and is the pretreatment of the online Raman spectrometer Device, system and pretreatment method of device and system. Background technique [0002] Traditional process industries use indirect parameters such as pressure, flow, and temperature to control devices. Now we have introduced an online Raman monitor to a petrochemical PX device, which can directly perform direct feedback control on specific product indicators. Will have a profound impact on the future of the process industry. [0003] Online Raman spectrometer can be used in all industrial fields such as fine chemical industry, petroleum refining and petrochemical industry. Analyze the chemical co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/34G01N21/65
Inventor 林锦国程明霄赵天琦蒋书波曹玲燕
Owner NANJING TECH UNIV
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