Sampling system in coke tar experiment

Abstract

The invention discloses a sampling system in a coke tar experiment. The sampling system comprises a controller, a sampling groove, a sampling groove driving mechanism, a coke tar injection mechanism and an air source injection mechanism, wherein the sampling groove driving mechanism drives the sampling groove to move forward or backward; the coke jar injection mechanism injects coke tar to the sampling groove; and the air source injection mechanism can bring gas after the evaporation and reaction of the coke tar to a gas chromatographic analyzer from an electric heating tube. The system can easily realize the sampling of all components of the coke tar and can achieve different sampling volumes of the coke tar by controlling the movement of an injection pump and a stepping motor, so as to provide a convenient and fast sampling mode for coke tar research; and the evaporated coke tar is stable, the phenomena such as plug flow and the like do not appear in a pipeline, the disadvantage that the pipeline is blocked due to carbon deposition caused by the reaction of the coke tar in an evaporator is not likely to appear, a larger space volume from an evaporation section to a reaction section is eliminated, and the heating and thermal insulation measures for preventing the condensation of coke tar and the like do not need to be taken; and the long-time continuous sampling can be realized by a tilted trough; therefore, the sampling system realizes the constant, accurate and simple sampling of the coke tar.

Description

technical field [0001] The invention relates to a tar experiment device, in particular to a tar experiment sampling system used for stably injecting tar oil in the tar experiment. Background technique [0002] For the study of coal tar or biomass tar thermal cracking, catalytic cracking, and reactions with other reactants (such as tar catalytic hydrogenation, tar cracking hydrogen production under water vapor, etc.), it is necessary to complete the determination of its reaction characteristics through experiments, such as Determine its thermal cracking and catalytic cracking characteristics and its reaction kinetic parameters. Tar is a complex mixture, and it is difficult to achieve stable and accurate sampling with simple sampling methods. In the existing experimental equipment and systems, because there is no accurate and constant tar experimental sampling system, it is difficult to study tar reactions, especially Especially in the research process that requires quantific...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the adverse effects of unstable tar sampling on tar research, realize stable full-component sampling of tar, and avoid the impact of bringing in other impurity gases, the present invention provides a stable, continuous, full-group Sampling System for Tar Experiment

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