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公开(公告)号：EP4392370A1
公开(公告)日：2024-07-03
申请号：EP22768825.6
申请日：2022-08-25
CPC分类号： F01K23/064 , B01D53/56 , C01B21/26 , C01B21/28 , C01B21/38 , F01K27/02 , B01D2252/10320130101 , B01D2257/40420130101 , Y02P20/129
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公开(公告)号：EP4377261A1
公开(公告)日：2024-06-05
申请号：EP22733374.7
申请日：2022-06-09
申请人： CASALE SA
发明人： MASANTI, Matteo , CORBETTA, Michele , OSTUNI, Raffaele , BIALKOWSKI, Michal Tadeusz , OLDANI, Fabio
CPC分类号： C01C1/185 , C01C1/0405 , C25B1/04 , C01B21/40 , C01B21/26 , C25B15/081 , C25B15/00 , Y02P20/133 , Y02E60/36
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公开(公告)号：EP4353346A1
公开(公告)日：2024-04-17
申请号：EP22201643.8
申请日：2022-10-14
申请人： CASALE SA
发明人： CEREA, Iacopo , GARBUJO, Alberto , OLDANI, Fabio
CPC分类号： C01B21/38 , C01B21/26 , B01D53/8625
摘要： A method for reducing the NOx emission during start-up and shutdown events of a nitric acid plant, wherein the nitric acid plant comprises a tail gas treatment section (10) including a first catalytic bed (2) for removal of N2O followed by a second catalytic bed (3) for removal of NOx, wherein during a start-up or shutdown the operation of said treatment section (10) is temporarily modified by adding a NOx reducing agent (4) upstream of said first catalytic bed (2), so that said first catalytic bed (2) provides reduction of NOx.
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公开(公告)号：EP3168332B2
公开(公告)日：2023-07-26
申请号：EP16764540.7
申请日：2016-01-29
发明人： YOSHIKANE, Yusuke , KITA, Koji
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公开(公告)号：EP4124601A1
公开(公告)日：2023-02-01
申请号：EP21188921.7
申请日：2021-07-30
申请人： CASALE SA
发明人： MASANTI, Matteo , CORBETTA, Michele , OSTUNI, Raffaele , BIALKOWSKI, Michal Tadeusz , OLDANI, Fabio
摘要： An integrated process for the synthesis of ammonia and nitric acid, including the production of hydrogen from electrolysis of water, is controlled by a selective switching between a first mode of operation and a second mode of operation, wherein in the first mode of operation ammonia is produced in excess and is stored in a suitable ammonia storage; in the second mode of operation the ammonia from said ammonia storage is used to provide an additional input of ammonia to the production of nitric acid; the switching between said first mode and second mode is based on the amount of power which is transferred to the electrolysis of water.
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公开(公告)号：EP4095093A1
公开(公告)日：2022-11-30
申请号：EP21176479.0
申请日：2021-05-28
申请人： CASALE SA
发明人： OSTUNI, Raffaele , BIASI, Pierdomenico , GARBUJO, Alberto , PANZERI, Nicola , OLDANI, Fabio , BIALKOWSKI, Michal Tadeusz
IPC分类号： C01B21/26 , C01B21/28 , C01B21/38 , B01D53/86 , B01J29/072
摘要： A process for the synthesis of nitric acid (100) comprising the steps of treating ammonia (1) in presence of oxygen (2) or air to a catalytic oxidation step (3) to yield a combusted gas (4), subjecting the combusted gas (4) to a catalytic decomposition step (5) to yield a N2O depleted gas stream (6), subjecting the N2O depleted gas stream (6) to a cooling step (9) to yield a cooled stream (11) and subjecting said cooled stream (11) to an absorption step (23) in presence of water (50) to yield a nitric acid (12) and a tail gas (13) retaining NOx; the catalytic decomposition step (5) is carried out at a temperature comprises between 450 °C and 700 °C on one or more iron zeolites catalyst deposited, coated, or coextruded onto a catalyst support provided with gas permeable channels.
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公开(公告)号：EP3380222B1
公开(公告)日：2022-08-03
申请号：EP16802003.0
申请日：2016-11-18
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