BR112017017593A2 - processo para a produção de ureia estabilizada por formaldeído. - Google Patents

processo para a produção de ureia estabilizada por formaldeído.

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Publication number
BR112017017593A2
BR112017017593A2 BR112017017593A BR112017017593A BR112017017593A2 BR 112017017593 A2 BR112017017593 A2 BR 112017017593A2 BR 112017017593 A BR112017017593 A BR 112017017593A BR 112017017593 A BR112017017593 A BR 112017017593A BR 112017017593 A2 BR112017017593 A2 BR 112017017593A2
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BR
Brazil
Prior art keywords
methanol
urea
ammonia
synthesis
synthesis gas
Prior art date
Application number
BR112017017593A
Other languages
English (en)
Inventor
Magnusson Andreas
Sheldon Daniel
David Pach John
Erlandsson Ola
Original Assignee
Johnson Matthey Plc
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Filing date
Publication date
Application filed by Johnson Matthey Plc filed Critical Johnson Matthey Plc
Publication of BR112017017593A2 publication Critical patent/BR112017017593A2/pt

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    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
    • C07C273/04—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds from carbon dioxide and ammonia
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
    • C07C273/14—Separation; Purification; Stabilisation; Use of additives
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    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • C01B3/382—Multi-step processes
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    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/48—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents followed by reaction of water vapour with carbon monoxide
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    • C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
    • C01B3/52—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with liquids; Regeneration of used liquids
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    • C01B3/52—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with liquids; Regeneration of used liquids
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    • C01B3/58—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solids; Regeneration of used solids including a catalytic reaction
    • C01B3/586—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solids; Regeneration of used solids including a catalytic reaction the reaction being a methanation reaction
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    • C01C1/04—Preparation of ammonia by synthesis in the gas phase
    • C01C1/0405—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst
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    • C07C273/025—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds of solutions of urea and formaldehyde
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    • C07C273/10—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds combined with the synthesis of ammonia
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    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/1516—Multisteps
    • C07C29/1518—Multisteps one step being the formation of initial mixture of carbon oxides and hydrogen for synthesis
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    • C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/37—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups
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    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

é descrito um processo para a produção de ureia estabilizada por formaldeído compreendendo as etapas de: (a) gerar um gás de síntese compreendendo hidrogênio, nitrogênio, monóxido de carbono, dióxido de carbono e vapor d?água em uma unidade de geração de gás de síntese; (b) recuperar dióxido de carbono a partir do gás de síntese para formar um gás de síntese empobrecido em dióxido de carbono; (c) sintetizar metanol a partir do gás de síntese empobrecido em dióxido de carbono em uma unidade de síntese de metanol e recuperar o metanol e um gás de escape de síntese do metanol compreendendo nitrogênio, hidrogênio e monóxido de carbono residual; (d) submeter pelo menos uma porção do metanol recuperado à oxidação com ar em uma unidade de produção de formaldeído; (e) submeter o gás de escape de síntese do metanol a metanização em um reator de metanização contendo um catalisador de metanização para formar um gás de síntese de amônia; (f) sintetizar amônia a partir do gás de síntese de amônia em uma unidade de produção de amônia e recuperar a amônia; (g) reagir uma porção da amônia e pelo menos uma porção da corrente de dióxido de carbono recuperada em uma unidade de produção de ureia para formar uma corrente de ureia; e (h) estabilizar a ureia misturando a corrente de ureia e um estabilizante preparado usando formaldeído recuperado a partir da unidade de produção de formaldeído, em que uma fonte de ar é comprimida e dividida em primeira e segunda porções, a primeira porção é fornecida à unidade de produção de formaldeído para a oxidação de metanol e a segunda porção é adicionalmente comprimida e fornecida à unidade de geração de gás de síntese.
BR112017017593A 2015-02-20 2015-12-18 processo para a produção de ureia estabilizada por formaldeído. BR112017017593A2 (pt)

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PCT/GB2015/054083 WO2016132092A1 (en) 2015-02-20 2015-12-18 Integrated process for the production of formaldehyde-stabilized urea

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EP3259248A1 (en) 2017-12-27
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EP3259248B1 (en) 2019-07-31
CN107250106A (zh) 2017-10-13
CN107250106B (zh) 2020-07-10
EA033955B1 (ru) 2019-12-13
CA2977012A1 (en) 2016-08-25
WO2016132092A1 (en) 2016-08-25
US20180072658A1 (en) 2018-03-15
GB2539294A (en) 2016-12-14
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