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US 8,524,165 B2Granted
Pipe reactor and plant for manufacturing of especially urea ammonium sulphate
AssigneeYara International Asa
InventorsFrancois Ledoux, Vincent Duponchel, Edmond Vogel
Life of this patent
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Abstract
A pipe reactor, especially for production of UAS, includes a tubular body and a reactor head, wherein the reactor head has a device for axial injection of acid, a device for injection of ammonia, a device for supply of urea and a reaction chamber, where acid and ammonia can react before coming into contact with urea.
Claims20
A pipe reactor, comprising:
- a tubular body;
- and
- a tubular reactor head comprising a downstream end, an acid injector for axial injection of acid, a base injector for injection of a base, an annular chamber surrounding said base injector, and an inlet for supplying at least one of a heat sensitive component and an acid sensitive component, said tubular reactor being conically convergent at said downstream end,
- wherein said base injector forms an annular chamber surrounding said acid injector, and includes an inlet to said annular chamber surrounding said acid injector, and
- wherein said base injector has an end and said acid injector has an end, and a reaction chamber is formed between said end of said base injector and said end of said acid injector.
2 more elements
A plant for manufacturing urea ammonium sulphate, said plant comprising:
- a pipe reactor comprising a tubular body and a tubular reactor head, the tubular reactor head comprising a downstream end, an acid injector for axial injection of sulphuric acid, a base injector for injection of ammonia, an annular chamber surrounding said base injector, an inlet for supplying at least one of a heat sensitive component and an acid sensitive component, and a conical convergent at said downstream end;
- a separator configured to separate steam from a urea ammonium sulphate slurry;
- and
- a unit configured to receive the steam,
- wherein said base injector forms an annular chamber surrounding said acid injector, and includes an inlet to said annular chamber surrounding said acid injector, and
- wherein said base injector has an end and said acid injector has an end, and a reaction chamber is formed between said end of said base injector and said end of said acid injector.
3 more elements
Dependencies are inferred from the claim text.