CO2/N2 switching type double-circulation extraction process and application thereof
A double-cycle, switch-type technology, applied in water/sludge/sewage treatment, petroleum industry, preparation of liquid hydrocarbon mixtures, etc., can solve the problem of difficult industrialization of oily solid waste cleaning process, easy volatilization of oil-soluble tertiary amines, and application Narrow range and other problems, to achieve good demulsification effect, good economic effect and low cost effect
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Embodiment 1
[0056] The medicine of this embodiment is: 50ml deionized water+0.5g polyetheramine D230+0.749g n-decanoic acid+20ml dodecane;
[0057] In this embodiment, dodecane is used to replace oily solid waste, and a double-cycle extraction process is established, such as Figure 9 shown;
[0058] Step S1: Mix 50ml of deionized water and 0.5g of polyetheramine D230 to obtain an aqueous solution of polyetheramine D230;
[0059] Step S2: Put dodecane in a beaker, put the beaker in a hot water bath, the temperature of the hot water bath is 50°C, add n-decanoic acid into the beaker and keep magnetic stirring at the same time;
[0060] Step S3: Adding polyetheramine D230 aqueous solution while continuously performing magnetic stirring is more conducive to making the reaction system react completely so as to achieve a clear ammonium n-decanoate solution and an oil phase, the upper layer is an oil phase, and the lower layer is an ammonium n-decanoate solution;
[0061] Step S4: separate and...
Embodiment 2
[0066] The drugs used in this example are: 50ml deionized water+0.5g polyetheramine D230+0.749g n-decanoic acid+20ml white oil;
[0067] In this embodiment, white oil is used to replace oily solid waste, and a double-cycle extraction process is established, such as Figure 10 shown;
[0068] Step S1: Mix 50ml of deionized water and 0.5g of polyetheramine D230 to obtain an aqueous solution of polyetheramine D230;
[0069] Step S2: Put the white oil in a beaker, put the beaker in a hot water bath, the temperature of the hot water bath is 32°C, add n-decanoic acid into the beaker and keep magnetic stirring at the same time;
[0070] Step S3: Adding polyetheramine D230 aqueous solution while continuously performing magnetic stirring is more conducive to making the reaction system react completely so as to achieve a clear ammonium n-decanoate solution and an oil phase, the upper layer is an oil phase, and the lower layer is an ammonium n-decanoate solution;
[0071] Step S4: sepa...
Embodiment 3
[0076] The medicine used in this embodiment is: 50ml deionized water+0.5g polyetheramine D230+0.749g n-decanoic acid+20ml kerosene;
[0077] In this embodiment, kerosene is used to replace oily solid waste, and a double-cycle extraction process is established, such as Figure 11 shown;
[0078] Step S1: Mix 50ml of deionized water and 0.5g of polyetheramine D230 to obtain an aqueous solution of polyetheramine D230;
[0079] Step S2: Put the white oil in a beaker, put the beaker in a hot water bath, the temperature of the hot water bath is 38°C, add n-decanoic acid into the beaker and keep magnetically stirring at the same time;
[0080] Step S3: Adding polyetheramine D230 aqueous solution while continuously performing magnetic stirring is more conducive to making the reaction system react completely so as to achieve a clear ammonium n-decanoate solution and an oil phase, the upper layer is an oil phase, and the lower layer is an ammonium n-decanoate solution;
[0081] Step S...
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