The method of process diamine absorbent stream

The method of process diamine absorbent stream

  • CN 102,202,770 B
  • Filed: 10/30/2009
  • Issued: 03/30/2016
  • Est. Priority Date: 11/06/2008
  • Status: Active Grant
First Claim
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1. process comprises a method for the diamine absorbent stream of at least one thermal-stable salt, and the method comprises:

  • A. from acid gas recovery unit, obtain diamine absorbent stream, described diamine absorbent stream has the concentration of the thermal-stable salt of below 1 equivalent/mole diamine unit;

    B. contact described diamine absorbent stream with acid cation exchange resin and generate poor salt diamines stream and used acid cation exchange resin;

    C. wash the residual diamines absorbent from described used acid cation exchange resin with water and generate useless wash water stream;

    WithD. the useless wash water stream described in part is recycled to described acid gas recovery unit.

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