High-pressure apparatus for forming fine bubbles of carbon dioxide and system for geological storage of carbon dioxide employing the same
A carbon dioxide and underground storage technology, applied in the direction of carbon dioxide storage, storage devices, chemical/physical/physicochemical processes, etc., can solve problems such as unusable, increased volume of dissolution tank, and elongated height of dissolution tank
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no. 1 example
[0100] figure 1 The fine bubble device 7A of the first embodiment shown, in the two carbon dioxide underground storage systems exemplified later, uses seawater and / or water as a solvent in the case of the first configuration form, and uses seawater and / or water as the solvent in the second configuration form. Under the circumstances, carbon dioxide dissolved in water is used as a solvent. For the main pipeline 30 that makes these solvents flow at a specified high flow rate, a carbon dioxide supply pipeline 31 embedded on it is arranged, and the pipeline wall that separates the above solvent and carbon dioxide , in the case of the illustrated example, the pores 30a, 30a... are formed on the pipeline wall surface of the main pipeline 30, and the liquid compressed to a liquid or supercritical state is compressed by the shear force of the solvent flowing in the above-mentioned main pipeline 30. Carbon dioxide is mixed with fine bubbles.
[0101] When a plurality of fine holes 30a...
no. 2 example
[0111] figure 2 and image 3 In the fine bubble devices 7B and 7C of the second embodiment shown, a carbon dioxide supply line 31 is arranged inside the main flow line 30 through which the solvent flows at a predetermined high flow rate, and a carbon dioxide supply line 31 is arranged on the wall surface of the line separating the above-mentioned solvent and carbon dioxide. , In the case of the example in the figure, pores 31a, 31a... are formed on the pipeline wall surface of the carbon dioxide supply pipeline 31. By the shear force of the solvent flowing in the above-mentioned mainstream pipeline 30, the carbon dioxide will be compressed to a liquid or supercritical state. The final carbon dioxide is mixed in while finely bubbling.
[0112] [Underground storage system for carbon dioxide 1]
[0113] Figure 4 The shown carbon dioxide underground storage system 1A is used to seal the carbon dioxide separated and recovered from large-scale emission sources of carbon dioxide...
Embodiment 1
[0140] In order to confirm the dissolved state of carbon dioxide in this underground storage system 1, use Figure 9 The experimental setup shown was used for the dissolution experiments of carbon dioxide. In addition, the microfoaming device 7 is installed in the housing having the microfoaming device in Example 2 described later.
[0141] The experimental device pressurizes the carbon dioxide in the carbon dioxide high-pressure cylinder 30 through the carbon dioxide compression device 2, and injects it into the dissolving tank 4, and pressurizes the brine in the brine tank 31 through the solvent pressure feeding pump 3, and injects it into the dissolving tank 4. The dissolution tank 4 performs a carbon dioxide dissolution process, and samples the carbon dioxide dissolved water obtained by separating undissolved carbon dioxide from the carbon dioxide dissolved water by the separation tank. Here, the volume of the dissolution tank 4 is 850 ml, and the filler 16 is a sandy fil...
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