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公开(公告)号：EP2646366A1
公开(公告)日：2013-10-09
申请号：EP11845178.0
申请日：2011-12-01
IPC分类号： C01B21/26
摘要： A process for producing nitric acid is disclosed in which a gaseous oxidizer feed composed at least substantially of ammonia, steam and an oxidizing gas is exposed to conditions whereby the ammonia is oxidized to produce a reaction mixture including nitrogen monoxide and water vapor. The reaction mixture is then cooled in a heat exchanger whereby: a) the nitrogen monoxide is oxidized and the water vapor is caused to condense, b) the products of the nitrogen monoxide oxidation react with and are absorbed by the condensed water, and c) substantially all of the nitrogen monoxide in the reaction mixture is converted to nitric acid. Also disclosed is a nitric acid solution when produced by the disclosed process.
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公开(公告)号：EP2709953A1
公开(公告)日：2014-03-26
申请号：EP11865540.6
申请日：2011-12-01
IPC分类号： C01C1/18
CPC分类号： C01C1/185 , C01B21/26 , C01C1/18 , Y02P20/125
摘要： A process for producing ammonium nitrate is disclosed and in which: a) a gaseous oxidiser feed composed at least substantially of ammonia, steam and an oxidising gas is exposed to conditions whereby the ammonia is oxidised to produce a reaction mixture including nitrogen monoxide and water vapour, b) the reaction mixture is cooled in a heat exchanger whereby the nitrogen monoxide is oxidised, the water vapour is condensed and the products of the nitrogen monoxide oxidation react with and are absorbed by the condensed water to form a nitric acid stream, with substantially all of the nitrogen monoxide in the reaction mixture being converted to nitric acid, and c) the nitric acid stream is reacted with a stream of ammonia in an ammonium nitrate producing stage to form the ammonium nitrate Substantially all of the steam within the oxidiser feed is derived from the ammonium nitrate producing stage, and at least 10% of the ammonia within the oxidiser feed is derived and carried by the steam from the ammonium nitrate producing stage. Also disclosed is ammonium nitrate, in any of its various possible forms, when produced by the disclosed process.
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公开(公告)号：EP2646368A1
公开(公告)日：2013-10-09
申请号：EP11845905.6
申请日：2011-12-01
IPC分类号： C01C1/18
CPC分类号： C01C1/185 , C01B21/26 , F28D20/00 , Y02E60/142
摘要： A process for producing ammonium nitrate is disclosed, which process comprises exposing a gaseous oxidiser feed composed at least substantially of ammonia, steam and an oxidising gas to conditions whereby the ammonia is oxidised to produce a reaction mixture including nitrogen monoxide and water vapour. The reaction mixture is cooled in a heat exchanger whereby the nitrogen monoxide is oxidised, the water vapour is condensed and the products of the nitrogen monoxide oxidation react with and are absorbed by the condensed water to form a nitric acid stream, with substantially all of the nitrogen monoxide in the reaction mixture being converted to nitric acid. The nitric acid stream is reacted with a stream of ammonia to form the ammonium nitrate. Also disclosed is ammonium nitrate per se (in any of its various possible forms) when produced by the disclosed process.
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公开(公告)号：EP2646766A1
公开(公告)日：2013-10-09
申请号：EP11845019.6
申请日：2011-12-01
CPC分类号： B01J19/00 , C01B21/26 , C01B21/262 , C01B21/28 , F28D9/0037 , F28D9/0093 , F28D2021/0022 , F28F3/048 , F28F2210/02
摘要： A heat exchange apparatus (13) is disclosed for use in the production of nitric acid and which provides for feed-effluent heat exchange and integrated nitrogen dioxide absorption. The apparatus comprises a core structure including first and second groups of diffusion bonded corrosion resistant metal plates (17 and 20) having fluid flow channel systems (16, 18 and 19,21) formed therein. A feed-effluent heat exchange system is provided by first channel systems (16 and 18) of the first and second groups of plates being juxtaposed in heat exchange relationship and an absorption system is provided by second channel systems (19 and 21 of the first and second groups of plates being juxtaposed in heat exchange relationship.
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公开(公告)号：EP2646368B1
公开(公告)日：2018-08-22
申请号：EP11845905.6
申请日：2011-12-01
CPC分类号： C01C1/185 , C01B21/26 , F28D20/00 , Y02E60/142
摘要： A process for producing ammonium nitrate is disclosed, which process comprises exposing a gaseous oxidiser feed composed at least substantially of ammonia, steam and an oxidising gas to conditions whereby the ammonia is oxidised to produce a reaction mixture including nitrogen monoxide and water vapour. The reaction mixture is cooled in a heat exchanger whereby the nitrogen monoxide is oxidised, the water vapour is condensed and the products of the nitrogen monoxide oxidation react with and are absorbed by the condensed water to form a nitric acid stream, with substantially all of the nitrogen monoxide in the reaction mixture being converted to nitric acid. The nitric acid stream is reacted with a stream of ammonia to form the ammonium nitrate.
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公开(公告)号：EP2646366B1
公开(公告)日：2020-08-26
申请号：EP11845178.0
申请日：2011-12-01
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公开(公告)号：EP2709953B1
公开(公告)日：2017-08-16
申请号：EP11865540.6
申请日：2011-12-01
CPC分类号： C01C1/185 , C01B21/26 , C01C1/18 , Y02P20/125
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