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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: 2011-09-07
NANJING UNIV OF TECH
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  • Abstract
  • Description
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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 before the detection of the Raman spectrometer on the PX device in the petrochemical industry. Since the Raman spectrum detection does not destroy the sample, a large number of sample preparations are not required, and only a small amount of representative samples are required. General samples can be installed in Measured directly in the capillary. Only a small amount of sample needs to be taken even in a large device, so that the device of the invention is structurally small.

[0035] In the following, in conjunction with the preferred embodiments, the specific implementation, features and effects provided by the present invention are described in detail. For the purpose of simplicity and clarity, the description of known technologies is appropriately omitted below to avoid those unnecessary details from affecting the technology. A description of the scheme.

[0036] Such as figure 1 , In this embodim...

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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 technical field of petrochemical automation monitoring, and is used for the pretreatment of the Raman spectrometer to monitor the components in the PX device on-line in real time, to realize the effective fluorescence elimination of the detection samples in the PX device, and to be the pretreatment of the online Raman spectrometer A device, a system, and a pretreatment method for the device and the system. Background technique [0002] Traditional process industries use indirect parameters such as pressure, flow, and temperature to control devices. Now that we have introduced the online Raman monitor into a petrochemical PX device, it is completely possible to carry out direct feedback control directly on the specific indicators of the product. Will have a profound impact on the future of the process industry. [0003] Online Raman spectrometers can be used in all industrial fields such as fine chemicals, petroleum refini...

Claims

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Application Information

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