System and method for detecting fluid mixture
AssigneeTsinghua University
InventorsPeixue Jiang, Yinhai Zhu, Yusen Wang
Life of this patent
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Abstract
A system and method for detecting a fluid mixture are provided. The system includes a pipeline assembly, a first valve, a gas chromatograph and a vacuum pump. The pipeline assembly includes a first pipeline and a second pipeline. The first valve is connected to the first pipeline and controls a flow of the fluid mixture obtained from a reaction in a reactor. The gas chromatograph is provided with a sample injection end and a sample output end, where the sample injection end is connected to an end of the first pipeline away from the first valve; and the sample output end is connected to the second pipeline. The vacuum pump is connected to an end of the second pipeline away from the gas chromatograph.
Claims12
A method for detecting a fluid mixture by a detection system, wherein the detection system comprises:
- a pipeline assembly, comprising a first pipeline and a second pipeline;
- a first valve, directly connected to an entrance to the first pipeline and controlling a flow of the fluid mixture obtained from a reaction in a reactor;
- a gas chromatograph, provided with a sample injection end connected to an end of the first pipeline away from the first valve and a sample output end connected to the second pipeline;
- a vacuum pump, connected to an end of the second pipeline away from the gas chromatograph;
- and
- a pulse power supply configured to output a pulse signal having a pulse width less than 10 ms, wherein the pulse power supply is connected to the first valve;
- wherein the method comprises:
- turning-off the first valve;
- vacuuming the first pipeline, the gas chromatograph, and the second pipeline with the vacuum pump;
- flashing the fluid mixture into a gas mixture at the entrance to the first pipeline by turning-on and turning-off the first valve alternately at a frequency of 1-10 Hz with the pulse signal;
- and
- detecting the gas mixture with the gas chromatograph online.
Dependencies are inferred from the claim text.