RU2753508C2 - Способ каталитического окисления и способ получения сопряженного диена - Google Patents

Способ каталитического окисления и способ получения сопряженного диена Download PDF

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RU2753508C2
RU2753508C2 RU2019129096A RU2019129096A RU2753508C2 RU 2753508 C2 RU2753508 C2 RU 2753508C2 RU 2019129096 A RU2019129096 A RU 2019129096A RU 2019129096 A RU2019129096 A RU 2019129096A RU 2753508 C2 RU2753508 C2 RU 2753508C2
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molybdenum
temperature
complex oxide
oxide catalyst
layer
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RU2019129096A3 (ru
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Казуюки ИВАКАИ
Хироки ХИНОИСИ
Хироси КАМЕО
Тецуфуми ЯМАГУТИ
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Мицубиси Кемикал Корпорейшн
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    • Y02P20/584—Recycling of catalysts

Abstract

Изобретение относится к способу каталитического окисления, осуществляющему реакцию каталитического окисления с использованием трубчатого реактора в присутствии молибденового сложнооксидного катализатора, в котором: слой молибденового соединения, содержащий соединение молибдена, и слой сложнооксидного катализатора, содержащий молибденовый сложнооксидный катализатор, расположены в данном порядке со стороны отверстия подачи сырьевого материала трубчатого реактора, и при потоке смешанного газа при температуре 440°С, состоящего из композиции, содержащей 75 об.% воздуха и 25 об.% водяного пара, возгоняемое количество молибдена (мкг/н.л) молибденового соединения оказывается больше, чем возгоняемое количество молибдена (мкг/н.л) молибденового сложнооксидного катализатора, при этом температура слоя молибденового соединения в реакции каталитического окисления ниже на 3-50°C, чем температура слоя катализатора, температура слоя молибденового соединения в реакции каталитического окисления ниже на 0-40°C, чем температура реакции, молибденовое соединение содержит щелочной металл или щелочноземельный металл. Также изобретение относится к способу получения из органического соединения продукта реакции окислительного дегидрирования (варианты). Использование предлагаемого способа позволяет уменьшить ухудшение рабочих характеристик сложнооксидного катализатора. 3 н. и 4 з.п. ф-лы, 1 ил., 4 табл., 4 пр.

Claims (21)

1. Способ каталитического окисления, осуществляющий реакцию каталитического окисления с использованием трубчатого реактора в присутствии молибденового сложнооксидного катализатора, в котором:
слой молибденового соединения, содержащий соединение молибдена, и слой сложнооксидного катализатора, содержащий молибденовый сложнооксидный катализатор, расположены в данном порядке со стороны отверстия подачи сырьевого материала трубчатого реактора, и
при потоке смешанного газа при температуре 440°С, состоящего из композиции, содержащей 75 об.% воздуха и 25 об.% водяного пара, возгоняемое количество молибдена (мкг/н.л) молибденового соединения оказывается больше, чем возгоняемое количество молибдена (мкг/н.л) молибденового сложнооксидного катализатора,
при этом температура слоя молибденового соединения в реакции каталитического окисления ниже на 3-50°C, чем температура слоя катализатора,
температура слоя молибденового соединения в реакции каталитического окисления ниже на 0-40°C, чем температура реакции,
молибденовое соединение содержит щелочной металл или щелочноземельный металл.
2. Способ каталитического окисления по п.1, в котором разница между возгоняемым количеством молибдена молибденового соединения и возгоняемым количеством молибдена молибденового сложнооксидного катализатора составляет 0,2-6 мкг/н.л.
3. Способ каталитического окисления по п. 1 или 2, в котором 20 мас.% или более молибденового соединения представляет собой оксид молибдена.
4. Способ получения из органического соединения продукта реакции окислительного дегидрирования, соответствующего органическому соединению, по реакции окислительного дегидрирования в присутствии молибденового сложнооксидного катализатора с использованием трубчатого реактора, в котором:
слой молибденового соединения, содержащий соединение молибдена, и слой сложнооксидного катализатора, содержащий молибденовый сложнооксидный катализатор, расположены в данном порядке со стороны отверстия подачи сырьевого материала трубчатого реактора, при потоке смешанного газа при температуре 440°С, состоящего из композиции, содержащей 75 об.% воздуха и 25 об.% водяного пара, возгоняемое количество молибдена (мкг/н.л) молибденового соединения оказывается больше, чем возгоняемое количество молибдена (мкг/н.л) молибденового сложнооксидного катализатора,
при этом температура слоя молибденового соединения в реакции каталитического окисления ниже на 3-50°C, чем температура слоя катализатора,
температура слоя молибденового соединения в реакции каталитического окисления ниже на 0-40°C, чем температура реакции,
молибденовое соединение содержит щелочной металл или щелочноземельный металл.
5. Способ получения продукта реакции окислительного дегидрирования по п.4, в котором органическое соединение представляет собой моноолефины, имеющие 4-6 атомов углерода, и продукт реакции окислительного дегидрирования представляет собой сопряженный диен.
6. Способ получения из органического соединения продукта реакции окисления, соответствующего органическому соединению, по реакции окисления в присутствии молибденового сложнооксидного катализатора с использованием трубчатого реактора, в котором:
слой молибденового соединения, содержащий соединение молибдена, и слой сложнооксидного катализатора, содержащий молибденовый сложнооксидный катализатор, расположены в данном порядке со стороны отверстия подачи сырьевого материала трубчатого реактора,
при потоке смешанного газа при температуре 440°С, состоящего из композиции, содержащей 75 об.% воздуха и 25 об.% водяного пара, возгоняемое количество молибдена (мкг/н.л) молибденового соединения оказывается больше, чем возгоняемое количество молибдена (мкг/н.л) молибденового сложнооксидного катализатора,
при этом температура слоя молибденового соединения в реакции каталитического окисления ниже на 3-50°C, чем температура слоя катализатора,
температура слоя молибденового соединения в реакции каталитического окисления ниже на 0-40°C, чем температура реакции,
молибденовое соединение содержит щелочной металл или щелочноземельный металл.
7. Способ получения продукта реакции окисления по п.6, в котором органическое соединение представляет собой пропилен, и продукт реакции окисления представляет собой, по меньшей мере, одно из акролеина и акриловой кислоты.
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