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MX2017010601A - Proceso integrado para la produccion de urea estabilizada con formaldehido. - Google Patents

Proceso integrado para la produccion de urea estabilizada con formaldehido.

Info

Publication number
MX2017010601A
MX2017010601A MX2017010601A MX2017010601A MX2017010601A MX 2017010601 A MX2017010601 A MX 2017010601A MX 2017010601 A MX2017010601 A MX 2017010601A MX 2017010601 A MX2017010601 A MX 2017010601A MX 2017010601 A MX2017010601 A MX 2017010601A
Authority
MX
Mexico
Prior art keywords
methanol
synthesis gas
formaldehyde
ammonia
urea
Prior art date
Application number
MX2017010601A
Other languages
English (en)
Inventor
David Pach John
Sheldon Daniel
Erlandsson Ola
Magnusson Andreas
Original Assignee
Johnson Matthey Plc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Johnson Matthey Plc filed Critical Johnson Matthey Plc
Publication of MX2017010601A publication Critical patent/MX2017010601A/es

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    • 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
    • C—CHEMISTRY; METALLURGY
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    • 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
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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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    • 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
    • C07C273/025—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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    • C07C29/15—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
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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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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Se describe un proceso para la producción de urea estabilizada con formaldehído, que comprende las etapas de: (a) generar un gas de síntesis que comprende hidrógeno, nitrógeno, monóxido de carbono, dióxido de carbono y vapor en una unidad generadora del gas de síntesis; (b) recuperar dióxido de carbono a partir del gas de síntesis para formar un gas de síntesis reducido en dióxido de carbono; (c) sintetizar metanol a partir del gas de síntesis reducido en dióxido de carbono en una unidad de síntesis del metanol y recuperar el metanol y un gas residual de la síntesis del metanol que se compone de nitrógeno, hidrógeno y monóxido de carbono residual; (d) someter al menos una parte del metanol recuperado a la oxidación con aire en una unidad de producción de formaldehído; (e) someter el gas residual de la síntesis del metanol a una metanación en un reactor de metanación que contiene un catalizador de metanación para formar un gas de síntesis de amoníaco; (f) sintetizar amoníaco a partir del gas de síntesis de amoníaco en una unidad de producción de amoníaco y recuperar el amoníaco; (g) hacer reaccionar una porción del amoníaco y al menos una porción del flujo de dióxido de carbono recuperado en una unidad de producción de urea para formar un flujo de urea; y (h) estabilizar la urea mediante la mezcla del flujo de urea y un estabilizador preparado mediante el uso de formaldehído recuperado a partir de la unidad de producción de formaldehído, en donde se comprime una fuente de aire y se divide en una primera y segunda porciones, la primera porción se proporciona a la unidad de producción de formaldehído para la oxidación del metanol y la segunda porción se comprime aún más y se proporciona a la unidad generadora del gas de síntesis.
MX2017010601A 2015-02-20 2015-12-18 Proceso integrado para la produccion de urea estabilizada con formaldehido. MX2017010601A (es)

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