Pretreatment apparatus for biogas online laser Raman spectrometer, and use method thereof

Abstract

The invention discloses a pretreatment apparatus for a biogas online laser Raman spectrometer, and a use method thereof. The apparatus is an integrated system, the inlet of the apparatus is connected with biogas, and the outlet of the apparatus is connected with the laser Raman spectrometer; the apparatus at least comprises, sequentially connected, an impurity processing unit, a cooling treatment unit and a constant speed control unit; and the impurity processing unit comprise a tar purifying unit and an impurity adsorbing unit paralleling to the tar purifying unit, and the inlet of the apparatus is provided with a triple valve in order to realize the connection between the inlet of the apparatus and the tar purifying unit or the impurity adsorbing unit. The apparatus has a simple structure, and the corresponding pretreatment apparatus can be flexible prepared by synthetically considering impurities carried in different gas samples according to the onsite practical conditions and the gas quality characteristic of a biomass combustion gas system in order to realize stable running of the e laser Raman gas spectrometer, the accuracy and sensitivity of Raman analysis data and real-time online continuous treatment.

Description

Technical field: [0001] The invention relates to a pretreatment device for an on-line analysis instrument of biogas, in particular to a pretreatment device for an on-line laser Raman spectrometer of a biogas and a use method thereof. Background technique: [0002] Energy is the basis for the survival and development of modern society. The supply capacity of clean fuel is related to the sustainable development of the national economy and is one of the foundations of national strategic security. In the past 100 years, due to the extensive use of fossil energy, the exploitable fossil energy reserves have been decreasing day by day, and the formation of fossil energy cannot be realized overnight, so the gap between energy storage and energy consumption is increasing day by day; in order to alleviate resource shortages and environmental pollution To achieve sustainable development, the dual pressures brought by the environment can be achieved by improving the utilization rate of ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to detect the biogas on-line by the laser Raman spectrometer, because the tar, ash, water, impurities in the biogas to be detected interfere with the Raman fluorescence, the temperature of the sample is too high, the pressure and flow rate of the biogas In order to solve the problems such as fluctuations in the analysis data that affect the accuracy of the analysis data, sensitivity and continuous and stable operation, a pretreatment device and method for the online laser Raman spectrometer of biogas are provided to realize the purification, removal of impurities and cooling of the samples to be tested. Cooling and flow rate adjustment pretreatment to eliminate fluorescence interference to ensure the stable operation of the laser Raman gas analyzer and the accuracy, sensitivity and real-time performance of the Raman analysis data, providing for the continuous operation and real-time monitoring of biogas demonstration application devices data accumulation

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