Rapid hydrocarbon composition analyzer

Abstract

The embodiment of the invention provides a hydrocarbon composition analyzer, comprising: a carrier gas source for providing carrier gas; a sample injector which is configured to receive a sample to be detected and the carrier gas; a chromatographic column which is connected with the sample injector; a detector (60) which is connected with the chromatographic column; and a data acquisition and processing system (61), wherein the chromatographic column is a photoetching quartz plate chromatographic column (59). The rapid hydrocarbon composition analyzer is suitable for analysis of petroleum, petrochemical and environment-friendly hydrocarbons, the hydrocarbon composition analysis is expanded to C70 hydrocarbons, and the detection speed is increased by 3-6 times.

Description

technical field [0001] The present disclosure relates to the technical field of detection, in particular to a hydrocarbon composition analyzer, especially a fast hydrocarbon composition analyzer. Background technique [0002] Gas chromatography has become an important method for separating and analyzing mixed volatile organic compounds, and is widely used in many fields. It plays a very important role in industry, agriculture, national defense, and scientific research. Conventional gas chromatography has good separation efficiency and high detection sensitivity. With the development of science and technology, gas chromatography has developed rapidly as a new separation and analysis technology, and has become an indispensable part of analysis, detection and separation and purification. means. [0003] The working principle of the gas chromatograph is to use the distribution coefficient between the gas phase and the fixed liquid phase of each component in the sample. When the...

AI Technical Summary

Problems solved by technology

[0004] The traditional gas chromatograph is not suitable for the composition analysis of petroleum, petrochemical and environmental protection hydrocarbons. On the one hand, coke and asphaltenes in petroleum enter the sampler of the gas chromatograph, which will affect the downstream detection. On the other hand, conventional The quartz chromatographic column cannot bear enough high temperature, so the range of carbon number analyzed is limited, and in the volatile hydrocarbons of petroleum, the carbon number range is C1-C60, and the traditional gas chromatograph cannot analyze the high carbon number composition

[0005] In addition, the current gas chromatograph takes a long time to analyze samples. For example, the routine analysis of petroleum hydrocarbons is still maintained at 60 minutes, which cannot meet the requirements of large sample volumes in practical applications.

Images