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US 12,215,285 B2Granted
Desulfurization techniques
OwnerAlbert S. Vam, Giacomo Florainventors
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Abstract
A desulfurization system has an oxidation process unit, and a multi-stage, liquid-liquid extraction unit in series with the oxidation process unit. The multi-stage, liquid-liquid extraction unit spits a fuel input from the oxidation process unit into a desulfurized fuel that is output for use, and a by-product. A solvent/sulfur/hydrocarbon separation process unit receives the by-product from the multi-stage, liquid-liquid extraction unit.
Claims11
A desulfurization system comprising:
- an oxidation process unit that outputs a sulfur-containing oxidized fuel;
- an extraction fluid container;
- a liquid-liquid extraction unit comprising a plurality of cascaded liquid-liquid extraction stages fluidly cooperative with both the oxidation process unit and the extraction fluid container to successively decrease a sulfur concentration within the sulfur-containing oxidized fuel;
- and
- a pumping system comprising a plurality of pumps each of which are fluidly cooperative with a respective one of each of the plurality of cascaded liquid-liquid extraction stages such that upon receipt within the liquid-liquid extraction unit of at least a portion of the oxidized fuel from the oxidation process unit and at least a portion of an extraction fluid from the extraction fluid container, the pumping system provides substantially equal flow rates across each of the cascaded liquid-liquid extraction stages within the liquid-liquid extraction unit.
2 more elements
Dependencies are inferred from the claim text.