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US 2026/0209156 A1Published application
Concentration of aqueous acetic acid by clathrate hydrate formation
AssigneeNOVA Chemicals (International) S.A.
InventorsBolaji OLAYIWOLA, Vasily SIMANZHENKOV, Shahin GOODARZNIA
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Abstract
A method and a system for concentrating an acetic acid solution are provided An exemplary system includes a hydrate reactor to form solid hydrates in the acetic acid solution, a filtration system to remove the solid hydrates formed in the hydrate reactor, and a drying system to separate ethane from water.
Claims19
A method for concentrating acetic acid, comprising:
- adding ethane to an acetic acid solution;
- controlling temperature and pressure to form a mixture of solid hydrates in the acetic acid solution;
- and
- separating the solid hydrates from the acetic acid solution to form a more concentrated acetic acid solution.
1 more element
A system for concentrating an acetic acid solution, comprising:
- a hydrate reactor having a first inlet configured to receive acetic acid and a second inlet configured to receive ethane;
- a chiller;
- a pump, wherein the chiller and the pump are configured to control the temperature and pressure so that, when water, acetic acid and ethane are present in the hydrate reactor, the water and ethane form solid hydrates in an acetic acid solution;
- a filtration system to remove the solid hydrates formed in the hydrate reactor;
- and
- a drying system to separate the ethane from the water.
3 more elements
Dependencies are inferred from the claim text.