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Premixture for preparing an absorbent for removing acidic gases from fluid streams

  • US 8,476,475 B2
  • Filed: 05/18/2007
  • Issued: 07/02/2013
  • Est. Priority Date: 05/19/2006
  • Status: Active Grant
First Claim
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1. A premix for producing an absorption medium for removing acid gases from fluid streams comprising at least one alkanolamine, piperazine and water, in which the premix has a total amine content of more than 65% by weight, the piperazine content of the premix is from 20.7 to 41.2% by weight and the molar ratio of water to piperazine in the premix is 1.6 to 4.8, wherein the premix has a solidification point below 35°

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