Process to recycle water condensate from CO2 off gas stream
AssigneeSabic Global Technologies B.V.
InventorsMuhammad Imran, Sreejit Nair, Deepak Sharma
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Abstract
A method of processing off gas from a chemical plant, where the off gas includes carbon dioxide and water. The processing of the off gas involves separating the off gas into a gas phase and a liquid phase and using one or more ion-exchange resin bed(s) and one or more granular activated carbon bed(s) to separate unwanted organic materials from the liquid phase. Based on this separation, water can be recovered that has less than 10 wt. % of the unwanted organic compounds originally in the liquid phase of the off gas.
Claims20
A method for recovering water from an off gas from a chemical plant, the off gas comprising carbon dioxide, water, and organic compounds, the method comprising:
- separating the off gas into a gas phase and a liquid phase;
- removing at least a portion of the organic compounds of the liquid phase of the off gas by one or more ion-exchange resin bed(s) and one or more granular activated carbon bed(s);
- and
- recovering a liquid that comprises primarily water and less than 10 wt. % of the unwanted organic compounds in the liquid phase of the off gas;
- wherein the off gas comprises saturated hydrocarbons, unsaturated hydrocarbons, chlorinated hydrocarbons, organic acids, glycol, aldehydes, and iron;
- and
- wherein the recovered liquid has a conductivity of less than 30 μS/cm.
Dependencies are inferred from the claim text.