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US 8,388,830 B2Granted
Process for upgrading sweetened or oxygen-contaminated kerosene or jet fuel, to minimize or eliminate its tendency to polymerize or foul when heated
AssigneeUop LLC
InventorsStephen W. Sohn, Steven P. Lankton, Joao Jorge da Silva Ferreira Alves
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Abstract
A process is presented for the removal of oxygen from a hydrocarbon stream. The oxygen can react and cause polymerization of the hydrocarbons when the hydrocarbon stream is heated. Controlling the removal of the oxygen from the hydrocarbon stream produces a hydrocarbon stream that is substantially free of oxygen and has a reduced activity for generating undesired compounds.
Claims15
A process for stripping oxygen from a hydrocarbon feedstream, comprising:
- passing the feedstream through a preheater, thereby creating a preheated feedstream;
- passing the preheated feedstream to an oxygen stripper, thereby creating an intermediate stripped stream;
- passing a stripping gas to the oxygen stripper to remove oxygen from the feedstream, thereby creating an overhead stream comprising oxygen;
- heating the intermediate stripped stream with a bottom heater, thereby removing additional stripping gas from the intermediate stripped stream and creating a liquid bottoms stream;
- and
- returning the removed stripping gas to the oxygen stripper.
3 more elements
Dependencies are inferred from the claim text.