Refining petroleum with an alkanolamine absorbent and reactivation of the spent alkanol amine

• US 2,797,188 A
• Filed: 12/04/1953
• Issued: 06/25/1957
• Est. Priority Date: 12/04/1953
• Status: Expired due to Term

• Current Assignee: Glenn E. Prielipp, Taylor Jr Frank Carter
• Original Assignee: Glenn E. Prielipp, Taylor Jr Frank Carter
• Inventors: TAYLOR JR FRANK CARTER, Prielipp, Glenn E.
• Application Number:
  US03/396,268
• Time in Patent Office: 1,299 Days
• US Class Current: 208/236
• CPC Class Codes: C10G 25/02 with ion-exchange material

Claims

1. A METHOD WHICH COMPRISES THE STEP OF CONTACTING AN AQUEOUS SOLUTION OF AN ALKONAL AMINE, WHICH SOLUTION CONTAINS AN ALKANOL AMINE SALT OF AT LEAST ONE ACID WHOSE DISSOCIATION CONSTANT IS GREATER THAN THE DISSOCIATION CONSTANT OF CARBONIC ACID, WITH A STRONGLY BASIC ANION EXCHANGE RESIN HAVING, AS ACTIVE ANION EXCHANGE RADICALS, QUATERNARY ALKYL ALKANOL AMMONIUM HYDROXIDE RADICALS,

2. IN A METHOD WHICH COMPRISES THE STEPS OF CONTACTING A PETROLEUM HYDROCARBON FLUID CONTAINING AS IMPURITIES THEREIN AT LEAST ONE NORMALLY GASEOUS ACID AND AT LEAST ONE NORMALLY NON-GASEOUS ACID WITH A LIQUID AQUEOUS SOLUTION OF AN ALKANOL AMINE, SEPARATING A LIQUID AQUEOUS SOLUTION OF A ALKALINE AMINE, SEPARATING A LIQUID AQUEOUS SALTS, AND HEATING SUCH SOLUTION TO BOILING WHEREBY NORMALLY GASEOUS ACIDS WHICH IN WATER SOLUTION HAVE A DISSOCIATION CONSTANT NOT GREATER THAN THE DISSOCIATION CONSTANT OF CARBONIC ACID ARE SUBSTANTIALLY EXPELLED FROM A RESIDAL LIQUID AQUEOUS SOLUTION OF AN ALKANOL AMINE CONTAINING AT LEAST ONE ALKANOL AMINE SALT OF AN ACID WHOSE DISSOCIATION CONSTANT IS GREATER THAN THE DISSOCIATION CONSTANT OF CARBONIC ACID, THE IMPROVEMENT THAT COMPRISES CONTACTING SUCH RESIDUAL SOLUTION WIHT A STRONGLY BASIC ANION EXCHANGE RESIN HAVING, AS ACTIVE ANION EXCHANGE RADICALS, QUATERNARY ALKYL ALKANOL AMMONIUM HYDROXIDE RADICALS.