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US 5,315,020 AGranted
Method of recovering waste heat from edible oil deodorizer and improving product stability
AssigneePraxair Technology, Inc.
InventorsAlan T. Y. Cheng, Jose R. Calvo, Ramon R. Barrado
Life of this patent
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Abstract
The invention relates to a process for recovering heat from deodorized edible oils and stabilizing the same comprising: introducing or injecting non-condensible inert gas into hot deodorized edible oil as the hot deodorized edible oil is cooled by indirectly heat exchanging with crude oil to be deodorized.
Claims10
A process comprising:
- deodorizing crude oil in a deodorization tower in the presence of a stripping gas selected from the group consisting of steam and mixtures of steam and non-condensible inert gas to produce hot deodorized edible oil and sparging and dissolving non-condensible inert gas into said hot deodorized edible oil as said hot deodorized edible oil is cooled to less than about 100.degree. C., wherein the amount of said non-condensible inert gas sparged is sufficient to promote uniform cooling and stability of the resulting, cooled deodorized edible oil.
A process for cooling and stabilizing deodorized edible oils, which comprises:
- (a) sparging and dissolving non-condensible inert gas into hot deodorized edible oil as said hot deodorized edible oil is cooled to less than about 100.degree. C., wherein the amount of said non-condensible inert gas sparged is sufficient to promote uniform cooling and stability of the resulting, cooled deodorized edible oil;
- (b) delivering the resulting cooled, deodorized edible oil containing non-condensible inert gas through a conduit into a storage container;
- and
- (c) sparging additional non-condensible inert gas in said conduit and/or said storage container so that said additional non-condensible inert gas is dissolved into said cooled, deodorized edible oil containing non-condensible inert gas.
1 more element
Dependencies are inferred from the claim text.