×

Process for treating gases in the ammonia synthesis

  • US 4,055,627 A
  • Filed: 11/13/1970
  • Issued: 10/25/1977
  • Est. Priority Date: 11/15/1969
  • Status: Expired due to Term
First Claim
Patent Images

1. A process for treating the effluent gases from an ammonia synthesis reactor and for recycling such gases with fresh gases to such reactor comprising the following steps:

  • absorbing ammonia contained in the effluent gases discharged from the synthesis reactor in the liquid film of a film absorber and obtaining a strong ammonia solution;

    blending the effluent gases discharged from said liquid film absorber with fresh gases for feed to said reactor into a heat exchanger and condensing the water contained in the blended effluent and fresh gases;

    removing the condensed water from said heat exchange as a weak ammonia solution;

    injecting liquid ammonia into gases discharged from said heat exchanger;

    feeding said discharged gases with said liquid ammonia injected therein into a separator and separating from said feed in said separator cooled dry gases and a strong solution of ammonia;

    feeding said cooled dry gases from said separator into said heat exchanger to cool and condense the water in the blended effluent and fresh gases being fed into said heat exchanger; and

    feeding said blended effluent and fresh gases, after the water contained therein has been condensed, from said heat exchanger to said ammonia synthesis reactor.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×