Absorption liquid for trapping hydrogen sulfide through phase change
A liquid absorption and phase change technology, applied in chemical instruments and methods, dispersed particle separation, separation methods, etc., can solve the problems of difficulty in regeneration and recycling, high energy consumption for desorption of desulfurizers, and achieve low energy consumption for regeneration and stable use. Oxidation, the effect of increasing added value
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Embodiment 1
[0021] Under normal temperature and pressure, mix a certain amount of organic amine and a certain amount of organic solvent in a 50mL beaker and transfer them to a 50mL absorber. The organic amine is 1,3,5-trimethylpyrazole , and its mass fraction is 20%; the organic solvent is sulfolane, and its mass fraction is 80%. h 2 S is controlled by a gas mass flow controller to pass into the absorber, and reacts for 15 minutes. In the formed liquid-liquid two-phase, H in the rich phase 2 The distribution ratio of S is 95.4%.
Embodiment 2
[0023] Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are thoroughly mixed in a 50mL beaker, and then transferred to a 50mL absorber, wherein the organic amine is 1,4-dimethylpiperazine, and its The mass fraction is 20%; the organic solvent is polyethylene glycol dimethyl ether, and its mass fraction is 80%. h 2 S is controlled by a gas mass flow controller to pass into the absorber, and reacts for 15 minutes. In the formed liquid-liquid two-phase, H in the rich phase 2 The distribution ratio of S is 95.7%.
Embodiment 3
[0025] Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are thoroughly mixed in a 50mL beaker, and then transferred to a 50mL absorber, wherein the organic amine is 1-methylimidazole, and its mass fraction is 25 %; Organic solvent is isoheptane, and its mass fraction is 75%. h 2 S is passed into the absorber controlled by a gas mass flow controller, reacted for 15 minutes, and centrifuged to form a liquid-solid two-phase, and H in the solid-phase product 2 The distribution ratio of S is 94.8%.
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