EA201791044A1 - Способ получения 1,3-бутадиенов путем дегидрирования н-бутенов с получением потока вещества, содержащего бутаны и 2-бутены - Google Patents

Способ получения 1,3-бутадиенов путем дегидрирования н-бутенов с получением потока вещества, содержащего бутаны и 2-бутены

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EA201791044A1
EA201791044A1 EA201791044A EA201791044A EA201791044A1 EA 201791044 A1 EA201791044 A1 EA 201791044A1 EA 201791044 A EA201791044 A EA 201791044A EA 201791044 A EA201791044 A EA 201791044A EA 201791044 A1 EA201791044 A1 EA 201791044A1
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stream
butene
necessary
butadiene
butane
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EA201791044A
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EA034435B1 (ru
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Ян Унгеленк
Филипп Грюнэ
Кристиан Вальсдорф
Ян Пабло Ёш
Михаел Бендер
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Басф Се
Линдэ Аг
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Publication of EA201791044A1 publication Critical patent/EA201791044A1/ru
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Abstract

Настоящее изобретение касается способа получения 1,3-бутадиена из н-бутенов, включающего следующие этапы: A) получение потока а исходного газа, содержащего бутан, 1-бутен, 2-бутен, изобутен и, при необходимости, 1,3-бутадиен, из установки каталитического крекинга с псевдоожиженным слоем катализатора; B) отделение изобутена из потока а исходного газа, причем получают поток b вещества, содержащий бутан, 1-бутен, 2-бутен и, при необходимости, 1,3-бутадиен; C) подачу потока b вещества, содержащего бутан, 1-бутен и 2-бутен, и, при необходимости, кислородсодержащего газа, а также, при необходимости, водяного пара по меньшей мере в одну зону дегидрирования и дегидрирование 1-бутена и 2-бутена с получением 1,3-бутадиена, причем получают поток с газового продукта, содержащий 1,3-бутадиен, бутан, 2-бутен, водяной пар, при необходимости, кислород, низкокипящие углеводороды, высококипящие побочные компоненты, при необходимости, оксиды углерода и, при необходимости, инертные газы; D) охлаждение и сжатие газового потока с продукта, причем получают по меньшей мере один водный поток d1 конденсата и один газовый поток d2, содержащий 1,3-бутадиен, бутан, 2-бутен, водяной пар, при необходимости, кислород, низкокипящие углеводороды, при необходимости, оксиды углерода и, при необходимости, инертные газы; Ea) отделение неконденсируемых и низкокипящих газовых компонентов, содержащих низкокипящие углеводороды, при необходимости, кислород, при необходимости, оксиды углерода и, при необходимости, инертные газы, в качестве газового потока е2 из газового потока d2 посредством абсорбции С-углеводородов, содержащих 1,3-бутадиен, бутан и 2-бутен, в абсорбенте, причем получают поток абсорбента, насыщенный C-углеводородами, и газовый поток e2, и Eb) последующую десорбцию C-углеводородов из насыщенного потока абсорбента, причем получают поток e1 C-углеводородов; F) разделение потока e1 С-углеводородов путем экстрактивной дистилляции селективным по 1,3-бутадиену растворителем на поток f1 вещества, содержащий 1,3-бутадиен и селективный растворитель, и поток f2 вещества, содержащий бутан и 2-бутен, отличающегося тем, что на этапе С) преобразуют по меньшей мере 90% 1-бутена, содержащегося в потоке b, и на этапе F получают поток f2 вещества, содержащий бутан и 2-бутен.
EA201791044A 2014-11-14 2015-11-09 Способ получения 1,3-бутадиенов путем дегидрирования н-бутенов с получением потока вещества, содержащего бутаны и 2-бутены EA034435B1 (ru)

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EP14193247 2014-11-14
PCT/EP2015/076018 WO2016075065A1 (de) 2014-11-14 2015-11-09 Verfahren zur herstellung von 1,3-butadien durch dehydrierung von n-butenen unter bereitstellung eines butane und 2-butene enthaltenden stoffstromes

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EA201791044A1 true EA201791044A1 (ru) 2017-11-30
EA034435B1 EA034435B1 (ru) 2020-02-07

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US (1) US10384990B2 (ru)
EP (1) EP3218334B1 (ru)
JP (1) JP6685299B2 (ru)
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EA034435B1 (ru) 2020-02-07
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