RU2002103884A - METHOD FOR SEPARATING FROM NORMAL BUTENES - Google Patents

METHOD FOR SEPARATING FROM NORMAL BUTENES

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Publication number
RU2002103884A
RU2002103884A RU2002103884/04A RU2002103884A RU2002103884A RU 2002103884 A RU2002103884 A RU 2002103884A RU 2002103884/04 A RU2002103884/04 A RU 2002103884/04A RU 2002103884 A RU2002103884 A RU 2002103884A RU 2002103884 A RU2002103884 A RU 2002103884A
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RU
Russia
Prior art keywords
butene
stream
distillation column
isobutene
column reactor
Prior art date
Application number
RU2002103884/04A
Other languages
Russian (ru)
Other versions
RU2229471C2 (en
Inventor
Гари Г. Подребарак
Джон Р. АДАМС
Original Assignee
Каталитик Дистиллейшн Текнолоджиз
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.)
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Priority claimed from US09/354,978 external-priority patent/US6242661B1/en
Application filed by Каталитик Дистиллейшн Текнолоджиз filed Critical Каталитик Дистиллейшн Текнолоджиз
Publication of RU2002103884A publication Critical patent/RU2002103884A/en
Application granted granted Critical
Publication of RU2229471C2 publication Critical patent/RU2229471C2/en

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Claims (14)

1. Способ отделения нормальных бутенов от изобутена, содержащихся в смешанном C4 потоке, включающий стадии:1. A method for separating normal butenes from isobutene contained in a mixed C 4 stream, comprising the steps of: (a) подачу (1) смешанного С4 потока, содержащего бутен-1, бутен-2 и изобутен, и (2) водорода в дистилляционный колонный реактор, содержащий слой катализатора PdO на подложке оксида алюминия;(a) supplying (1) a mixed C 4 stream containing butene-1, butene-2 and isobutene, and (2) hydrogen to a distillation column reactor containing a PdO catalyst layer on an alumina support; (b) одновременно в дистилляционном колонном реакторе осуществляют(b) simultaneously in a distillation column reactor carry out (i) контакт бутена-1 и водорода со слоем для изомеризации бутена-1 до бутена-2 и(i) contact of butene-1 and hydrogen with a layer for isomerization of butene-1 to butene-2 and (ii) отделение бутена-2 от изобутена путем фракционной перегонки;(ii) separating butene-2 from isobutene by fractional distillation; (c) удаление изобутена, содержащего пропорционально меньше бутена-1, чем поток С4 продуктов из дистилляционного колонного реактора в виде верхнего погона; и(c) removing isobutene containing proportionally less butene-1 than the C 4 product stream from the distillation column reactor as an overhead; and (a) удаление бутена-2 из дистилляционного колонного реактора в виде донного осадка.(a) removing butene-2 from the distillation column reactor as a bottom sediment. 2. Способ по п.1, включающий фракционирование части смешанного С4 потока при отсутствии катализатора до контакта части С4 с катализатором.2. The method according to claim 1, comprising fractionating a portion of the mixed C 4 stream in the absence of a catalyst until the C 4 portion contacts the catalyst. 3. Способ по п.2, где смешанный С4 поток также содержит нормальный бутан и изобутан, нормальный бутан удаляют из дистилляционного колонного реактора вместе с донным осадком и изобутан удаляют из реактора вместе с верхним погоном.3. The method according to claim 2, where the mixed C 4 stream also contains normal butane and isobutane, normal butane is removed from the distillation column reactor along with bottom sediment, and isobutane is removed from the reactor along with the overhead. 4. Способ по п.2, где дистилляционный колонный реактор работает в таких условиях температуры и давления, которые исключают контакт бутена-2 с катализатором и поддерживают контакт бутена-1 с названным катализатором.4. The method according to claim 2, where the distillation column reactor operates under conditions of temperature and pressure that exclude contact of butene-2 with the catalyst and maintain contact of butene-1 with the said catalyst. 5. Способ по п.1, где названный смешанный С4 поток содержит бутадиен, бутадиен гидрируют до бутена в слое.5. The method according to claim 1, where the named mixed With 4 stream contains butadiene, butadiene is hydrogenated to butene in the layer. 6. Способ отделения нормальных бутенов от изобутена, содержащихся в смешанном С4 потоке, включающий:6. A method for separating normal butenes from isobutene contained in a mixed C 4 stream, including: (a) подачу смешанного С4 потока, содержащего бутен-1, бутен-2, нормальный бутан, изобутен и изобутан в дистилляционный колонный реактор, где С4 поток фракционируют до более легких фракций, содержащих бутен-1, изобутен и изобутан, и более тяжелых фракций, содержащих бутен-2 и нормальный бутан;(a) feeding a mixed C 4 stream containing butene-1, butene-2, normal butane, isobutene and isobutane to a distillation column reactor, where the C 4 stream is fractionated to lighter fractions containing butene-1, isobutene and isobutane, and more heavy fractions containing butene-2 and normal butane; (b) подачу более легких фракций и водорода в слой катализатора PdO на подложке из оксида алюминия, полученного в виде дистилляционной структуры;(b) supplying lighter fractions and hydrogen to the PdO catalyst layer on an alumina support obtained as a distillation structure; (c) одновременно в дистилляционном колонном реакторе осуществляют:(c) simultaneously in a distillation column reactor carry out: (i) контакт бутена-1 и водорода с катализатором для изомеризации бутена-1 до бутена-2 и(i) contact of butene-1 and hydrogen with a catalyst for isomerization of butene-1 to butene-2; and (ii) отделение бутена-2 от изобутена и изобутана путем фракционной перегонки;(ii) separating butene-2 from isobutene and isobutane by fractional distillation; (d) удаление донного осадка из дистилляционного колонного реактора, содержащего бутен-2; и(d) removing bottom sediment from a distillation column reactor containing butene-2; and (e) удаление потока верхнего погона из дистилляционного колонного реактора, содержащего изобутен и изобутан.(e) removing the overhead stream from a distillation column reactor containing isobutene and isobutane. 7. Способ по п.6, где процесс проводят при температуре в интервале от 80 до 180°F и давлении в интервале от 50 до 110 фунт на квадратный дюйм.7. The method according to claim 6, where the process is carried out at a temperature in the range from 80 to 180 ° F and a pressure in the range from 50 to 110 psi. 8. Способ по п.7, где смешанный С4 поток содержит бутадиен, и бутадиен гидрируют до бутена в слое.8. The method according to claim 7, where the mixed With 4 stream contains butadiene, and butadiene is hydrogenated to butene in the layer. 9. Способ по п.6, где вторые верхние погоны поступают в разделитель, где изобутен отделяют от названного изобутана путем фракционной дистилляции.9. The method according to claim 6, where the second overhead comes in a separator, where isobutene is separated from the named isobutane by fractional distillation. 10. Способ по п.7, где процесс проводят при температуре в интервале от 100 до 150°F.10. The method according to claim 7, where the process is carried out at a temperature in the range from 100 to 150 ° F. 11. Способ по п.1, где процесс проводят с соотношением обратного потока в интервале от 0,5:1 до 33:1.11. The method according to claim 1, where the process is carried out with a reverse flow ratio in the range from 0.5: 1 to 33: 1. 12. Способ по п.1, где водород подают с эффективной скоростью.12. The method according to claim 1, where hydrogen is supplied at an effective speed. 13. Способ по п.6, где водород подают со скоростью, обеспечивающей достаточное количество водорода для поддерживания реакции гидрирования бутадиена и замещения потери водорода из катализатора, но при которой количество водорода остается ниже того уровня, который требуется для гидрирования бутенов или который вызывает захлебывание дистилляционного колонного реактора.13. The method according to claim 6, where the hydrogen is supplied at a rate that provides a sufficient amount of hydrogen to support the hydrogenation of butadiene and to replace the loss of hydrogen from the catalyst, but at which the amount of hydrogen remains below the level required for hydrogenation of butenes or which causes flooding of distillation column reactor. 14. Способ по п.6, где смешанный С4 поток представляет собой поток из устройства жидкого каталитического крекинга.14. The method according to claim 6, where the mixed With 4 stream is a stream from a liquid catalytic cracking device.
RU2002103884/04A 1999-07-16 2000-05-11 Method of separating isobutene from linear butenes RU2229471C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/354,978 1999-07-16
US09/354,978 US6242661B1 (en) 1999-07-16 1999-07-16 Process for the separation of isobutene from normal butenes

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RU2002103884A true RU2002103884A (en) 2003-12-27
RU2229471C2 RU2229471C2 (en) 2004-05-27

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US (1) US6242661B1 (en)
EP (1) EP1200378B1 (en)
JP (1) JP4773012B2 (en)
KR (1) KR100630153B1 (en)
CN (1) CN1213970C (en)
AR (1) AR024279A1 (en)
AT (1) ATE287864T1 (en)
AU (1) AU5009600A (en)
BR (1) BR0012486A (en)
CA (1) CA2379348C (en)
DE (1) DE60017751T2 (en)
EG (1) EG22143A (en)
ES (1) ES2232454T3 (en)
MX (1) MXPA02000429A (en)
RU (1) RU2229471C2 (en)
TW (1) TW541299B (en)
WO (1) WO2001005734A1 (en)
ZA (1) ZA200200103B (en)

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