Salt drying process

Details Salt drying process Salt drying process

2008-10-24

2011-12-20

Smith, Duane (Department: 1776)

Gas separation: processes

Solid sorption

And liquid contact

C095S024000, C095S188000, C095S189000, C095S196000, C095S205000, C095S206000, C095S231000, C096S135000, C096S234000, C096S240000, C096S245000

Reexamination Certificate

active

08080087

ABSTRACT:
A method of drying liquid and gaseous hydrocarbons by contacting a feed stream of the hydrocarbon with an aqueous solution of a salt drying agent prior to passing the stream through a salt dryer to remove part of the water in the stream. The aqueous solution of the salt drying agent is generated in the salt dryer when the partly dried stream comes into contact with the drying salt and forms the solution. The solution is circulated in a loop from the salt dryer to the incoming feed and then through a liquid/liquid coalescer which removes a portion of the water together with dissolved salt from the mixture before the mixture is passed on to the salt dryer where further removal of water occurs. The salt dryer is off-loaded by a substantial factor by the initial partial dehydration and does not require to remove such a large amount of water; the salt consumption is therefore reduced in proportion to the amount of water removed in the treatment steps which precede the dryer.

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