Experimental system for supplementing trace impurities in high temperature and high pressure experiments

Abstract

The invention relates to an experimental system for supplementing trace impurity in a high-temperature high-pressure experiment. The experimental system comprises a mixed gas bottle, a supercharging pump, an air compressor, a high-pressure storage tank, a high-pressure liquid measuring pump, a high-temperature high-pressure reaction kettle and an alkaline liquid absorption pool; the mixed gas bottle is connected with a gas inlet of the supercharging pump through a mixed gas output pipeline; the air compressor is connected with a power input port of the supercharging pump through a power input pipeline, and the supercharging pump is connected with a gas inlet of the high-pressure storage tank through a supercharging input pipeline; a gas outlet of the high-pressure storage tank is connected with a gas inlet of the high-temperature high-pressure reaction kettle through an impurity gas supplementing pipeline; the high-pressure liquid measuring pump is connected with a liquid inlet of the high-temperature high-pressure reaction kettle through a liquid input pipeline; a gas outlet of the high-temperature high-pressure reaction kettle is connected with a gas inlet of the alkaline liquid absorption pool through a gas discharging pipeline, and a gas outlet of the alkaline liquid absorption pool is connected with a purified gas discharging pipeline. By adopting the experimental system, the impurity gas can be stably supplemented to a corrosion reaction system; the problem that the pressure is instable can be avoided.

Description

Technical field [0001] The invention belongs to the field of corrosion experimental devices, and specifically relates to an experimental system for supplementing trace impurities in high-temperature and high-pressure experiments, which can be used to continuously or intermittently supplement trace gases and trace moisture during high-temperature and high-pressure experiments. Background technique [0002] Carbon Capture and Storage (CCS) technology is a cutting-edge technology with great potential for mitigating greenhouse gas emissions. This technology will capture CO 2 Inject oil and gas wells to improve oil and gas recovery (CO 2 -EOR), has been applied in the United States for more than 30 years, and domestic PetroChina and Sinopec have carried out the use of CO in several oil and gas fields. 2 Pilot experiments to improve oilfield recovery have achieved good results. CO 2 Transport as CO 2 The intermediate hub from the capture site to the storage site is one of the key techn...

AI Technical Summary

Problems solved by technology

However, boosting with a booster pump is a process of continuous boosting. After reaching the set pressure value, the pressure cannot be kept stable.

Therefore, it is not feasible to directly use a booster pump to continuously replenish impurity gas or maintain a stable pressure

In addition, water needs to be added to the high-temperature and high-pressure reactor before the high-temperature and high-pressure experiment starts. During the experiment, the high-temperature and high-pressure reactor cannot be disassembled. Therefore, water cannot be added to the reactor during the entire experiment.

These factors above may eventually lead to distortion of the experimental data, leading to conservative experimental results

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