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PROMOTING SCRUBBING OF ACID GASES

  • US 3,856,921 A
  • Filed: 11/10/1971
  • Issued: 12/24/1974
  • Est. Priority Date: 07/22/1970
  • Status: Expired due to Term
First Claim
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1. IN A PROCESS FOR THE REMOVAL OF ACIDIC COMPONENTS SAID ACIDIC COMPONENTS BEING SELECTED FROM THE GROUP CONSISTING OF H2S, CO2, SO3, CS2, HCN, HCL, COS, AND THE OXYGEN AND SULFUR DERIVATIVES OF C1 TO C4 HYDROCARBONS FROM GASES, WHICH COMPRISES CONTACTING SAID GAS WITH AN AQUEOUS SOLUTION COMPRISING A BASIC SALT, SELECTED FROM THE GROUP CONSISTING OF POTASSIUM CARBONATE, SODIUM CARBONATE, POTASSIUM HYDROXIDE AND SODIUM HYDROXIDE, THE IMPROVEMENT COMPRISING CONTACTING SAID GAS AND SAID SOLUTION IN THE PRESENCE OF AN AMINE SELECTED FROM THE GROUP CONSISTING OF 2-METHYLAMIDETHANOL, 2-ETHYLAMINOETHANOL, MORPHOLINE, AND PYRROLIDINE.

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