Device for testing diffusion concentration and diffusion coefficient of CO2 in porous medium and test method thereof
A technology of diffusion coefficient and porous media, applied in the direction of measuring devices, surface/boundary effects, instruments, etc., can solve problems affecting results, porous media errors, etc.
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[0009] Technical scheme of the present invention is as follows:
[0010] A method for testing CO in porous media 2 Concentration and diffusion coefficient devices, including a constant temperature control box, a core holding sampler set in the constant temperature control box, a confining pressure control device and CO 2 A high-pressure storage tank; a computer is arranged outside the thermostatic control box: for monitoring CO 2 The pressure and the temperature in the constant temperature control box; CO is also provided outside the constant temperature control box 2 gas source with the CO 2 The high-pressure storage tanks are connected; a sampling port and a sampler are also provided on the core holding sampler.
[0011] Preferably according to the present invention, the CO 2 Gas source through CO 2 cooling cycle booster pump with the CO 2 High pressure storage tank connected.
[0012] In the thermostatic control box 1, a core holding sampler 3, a pressure sensor 8, a...
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