发明名称 |
PROCESS FOR THE RECOVERY OF AMMONIA FROM A GASEOUS STREAM |
摘要 |
A process for the recovery of ammonia contained in a gaseous stream is described, said process comprising the following phases: (a) subjecting the gaseous stream containing ammonia to a washing (S) with an aqueous washing solution (5a) having a pH lower than 7.0, with the formation of a purified gaseous stream (6) and an aqueous solution (7) containing an ammonium salt; (b) subjecting the aqueous solution containing the ammonium salt coming from phase (a) to a distillation process (MD) with a hydrophobic microporous membrane at a temperature ranging from 50 to 250° C. and a pressure ranging from 50 KPa to 4 MPa absolute with the formation of a regenerated washing solution (16) and a gaseous stream (18) comprising NH3 and H2O; (c) recycling said generated washing solution to phase (a). The equipment for carrying out the above process is also described.
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申请公布号 |
US2012039787(A1) |
申请公布日期 |
2012.02.16 |
申请号 |
US201013143988 |
申请日期 |
2010.01.11 |
申请人 |
CASARA PAOLO;GIANAZZA ALESSANDRO;MIRACCA IVANO;SAIPEM S.P.A |
发明人 |
CASARA PAOLO;GIANAZZA ALESSANDRO;MIRACCA IVANO |
分类号 |
C01C1/12;B01D53/58 |
主分类号 |
C01C1/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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