Detection device and test method for determining gas containing soluble components

Abstract

The invention relates to the technical field of gas detection, discloses a detection device and a test method for determining gas containing soluble components, and aims to solve the problem that components and relative content of gas generated during modification need to be determined when a modification experiment of urea solution on thickened oil at high temperature and high pressure is studied, however, due to the fact that a gas product contains ammonia gas which is extremely soluble in water, the ammonia gas is difficult to accurately measure after the temperature is reduced, so that the ammonia gas is absorbed by introducing the gas into a cold water medium, the content of the ammonia gas in the gas is calculated by measuring the pH value, the content of the gas which is not absorbed is calculated by a separation device with scales, and finally, the relative content of the gas which is not absorbed is calculated by a mass spectrometer. According to the invention, cold water is used as an absorption medium, and mediums such as acid / alkaline, organic solvents and the like can also be used for pertinently absorbing gas which is not easy to detect through a gas detection device. And the device has wide application value.

Description

technical field [0001] The invention relates to the technical field of gas detection, in particular to a gas detection device and a test method for measuring easily soluble components. Background technique [0002] When studying the modification effect of urea on heavy oil, it is necessary to mix urea solution with heavy oil, and then heat it in a high-temperature and high-pressure reactor. The gas is collected, but since the gas product contains ammonia gas which is very soluble in water, an absolutely dry environment cannot be guaranteed after the temperature is lowered, so it is difficult to ensure accurate measurement of ammonia gas. [0003] Therefore, this patent separates ammonia from other gas components through a cold water medium, calculates the ammonia content of the gas through the measurement of the pH value, calculates the amount of gas through a separation device with a scale, and then measures the remaining gas through a mass spectrometer Relative content, s...

AI Technical Summary

Problems solved by technology

[0002] When studying the modification effect of urea on heavy oil, it is necessary to mix urea solution with heavy oil, and then heat it in a high-temperature and high-pressure reactor. However, since the gas product contains ammonia gas which is very soluble in water, an absolutely dry environment cannot be guaranteed after the temperature is lowered, so it is difficult to ensure accurate measurement of ammonia gas

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