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- W2789401810 abstract "Carbondioxide (CO 2 ) content in natural gas must be removed because it inhibits liquefication process of natural gas. CO 2 gas separation technology using membrane contactor has been developed, however solvent regeneration using membrane contactors are still rare because it requires a larger energy. The regeneration process by using membrane vacuum technology was put forward to reduce the regeneration energy consumption. In this work, arginine, piperazine (PZ), and potassium carbonate (K 2 CO 3 ) as activators were added into diethanolamine (DEA) solution to form aqueous solutions of activated DEA. The experiment of CO 2 desorption from activated DEA was carried out in hollow fibre membrane contactor (HFMC). The solvent with rich CO 2 at 30-70°C was flowed in the lumen of the hydrophobic polypropylene HFMC, and the shell side was maintained at a reduced pressure by a vacuum pump at 20 kPa. The effect of solvent temperature and activators were investigated to get CO 2 desorption flux and regeneration efficiency. Experimental result shows that increasing of solvent temperature could enhance CO 2 desorption flux and regeneration efficiency. Instead of that, the activated DEA also give better result compared with non-activated DEA. Among three activators, K 2 CO 3 give the best result for desorption flux and regeneration efficiency." @default.
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- W2789401810 date "2018-01-01" @default.
- W2789401810 modified "2023-09-25" @default.
- W2789401810 title "CO<sub>2</sub> desorption from activated DEA using membrane contactor with vacuum regeneration technology" @default.
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- W2789401810 doi "https://doi.org/10.1051/matecconf/201815608012" @default.
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