Recovery method of ammonia from gaseous mixture
First Claim
1. A recovery method of ammonia from a gaseous mixture, comprising a process (I) in which a gaseous mixture comprising ammonia and carbon dioxide is contacted with an organic solvent to allow said organic solvent to absorb ammonia, and a process (II) in which said organic solvent which absorbed ammonia is distilled to separate ammonia from said organic solvent.
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Abstract
An object of the present invention is to carry out separation recovery of ammonia efficiently from a gaseous mixture containing ammonia and carbon dioxide, without generating a solid ammonium carbamate. A recovery method of ammonia from a gaseous mixture, includes a process (I) in which a gaseous mixture containing ammonia and carbon dioxide is contacted with an organic solvent to allow the organic solvent to absorb ammonia in the gaseous mixture, and a process (II) in which the organic solvent which absorbed ammonia is distilled to separate ammonia from the organic solvent.
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Citations
9 Claims
- 1. A recovery method of ammonia from a gaseous mixture, comprising a process (I) in which a gaseous mixture comprising ammonia and carbon dioxide is contacted with an organic solvent to allow said organic solvent to absorb ammonia, and a process (II) in which said organic solvent which absorbed ammonia is distilled to separate ammonia from said organic solvent.
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