RU2001129361A - METHOD FOR ISSUING OLEFINS FROM PLANTS FOR PRODUCING POLYOLEFINS - Google Patents

METHOD FOR ISSUING OLEFINS FROM PLANTS FOR PRODUCING POLYOLEFINS

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Publication number
RU2001129361A
RU2001129361A RU2001129361/04A RU2001129361A RU2001129361A RU 2001129361 A RU2001129361 A RU 2001129361A RU 2001129361/04 A RU2001129361/04 A RU 2001129361/04A RU 2001129361 A RU2001129361 A RU 2001129361A RU 2001129361 A RU2001129361 A RU 2001129361A
Authority
RU
Russia
Prior art keywords
olefin
separation unit
catalyst poison
gas mixture
gas
Prior art date
Application number
RU2001129361/04A
Other languages
Russian (ru)
Other versions
RU2240330C2 (en
Inventor
Ханс-Якоб ФАЙНДТ
Штефан БИТТЕРЛИХ
Каспар ЭФЕРТЦ
Манфред ХЕККЕР
Original Assignee
Базелль Полиолефине Гмбх
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
Priority claimed from DE19915106A external-priority patent/DE19915106A1/en
Application filed by Базелль Полиолефине Гмбх filed Critical Базелль Полиолефине Гмбх
Publication of RU2001129361A publication Critical patent/RU2001129361A/en
Application granted granted Critical
Publication of RU2240330C2 publication Critical patent/RU2240330C2/en

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Claims (10)

1. Способ выделения олефинов из содержащей один или несколько олефинов, инертный газ и катализаторный яд газовой смеси, где газовая смесь подается в разделительный блок (18) и разделяется на олефин и инертный газ, отличающийся тем, что до или после разделительного блока (18) присоединена аппаратура (17), так, что1. The method of separation of olefins from containing one or more olefins, an inert gas and catalyst poison gas mixture, where the gas mixture is supplied to the separation unit (18) and is divided into olefin and inert gas, characterized in that before or after the separation unit (18) hardware is connected (17), so that i) при присоединении аппаратуры до разделительного блока катализаторный яд, по меньшей мере частично, удаляется из газовой смеси, аi) when the equipment is connected to the separation unit, the catalyst poison is at least partially removed from the gas mixture, and ii) при присоединении аппаратуры после разделительного блока катализаторный яд удаляется частично из отделенного олефина.ii) upon attachment of the equipment after the separation unit, the catalyst poison is partially removed from the separated olefin. 2. Способ по п.1, отличающийся тем, что газовая смесь в виде отходящего газа возникает при каталитической газофазной полимеризации олефинов.2. The method according to claim 1, characterized in that the gas mixture in the form of exhaust gas occurs during catalytic gas-phase polymerization of olefins. 3. Способ по п.1 или 2, отличающийся тем, что в качестве разделительного блока (18) используется мембранное приспособление, которое содержит одну или несколько мембран, или дистилляционное устройство.3. The method according to claim 1 or 2, characterized in that as the separation unit (18) a membrane device is used that contains one or more membranes, or a distillation device. 4. Способ по п.3, отличающийся тем, что в качестве разделительного блока (18) используется мембранное приспособление в виде спирального, полученного намоткой или плоского модуля, и что разделительный модуль (18) работает при рабочих температурах в области от -30 до 100°С.4. The method according to claim 3, characterized in that the membrane device in the form of a spiral, wound or flat module is used as a separation unit (18), and that the separation module (18) operates at operating temperatures in the range from -30 to 100 ° C. 5. Способ по любому из пп.1-4, отличающийся тем, что в качестве аппаратуры (17) для удаления катализаторного яда применяют приспособление, содержащее одно или несколько молекулярных сит.5. The method according to any one of claims 1 to 4, characterized in that a device containing one or more molecular sieves is used as an apparatus (17) for removing catalyst poison. 6. Способ по любому из пп.1-5, отличающийся тем, что в качестве олефина применяют этилен или пропилен.6. The method according to any one of claims 1 to 5, characterized in that ethylene or propylene is used as the olefin. 7. Способ по любому из пп.1-6, отличающийся тем, что в качестве инертного газа применяют азот.7. The method according to any one of claims 1 to 6, characterized in that nitrogen is used as an inert gas. 8. Способ по любому из пп.1-7, отличающийся тем, что процентная доля катализаторного яда в газовой смеси меньше или равна 10-3 мас. % и что в качестве катализаторного яда из смеси удаляется диоксид серы.8. The method according to any one of claims 1 to 7, characterized in that the percentage of catalyst poison in the gas mixture is less than or equal to 10 -3 wt. % and that sulfur dioxide is removed from the mixture as a catalyst poison. 9. Способ по любому из пп.1-8, отличающийся тем, что газовая смесь состоит по существу из инертного газа и олефина, и при этом газовая смесь содержит 20-80 об. %, предпочтительно 40-60 об. % олефина.9. The method according to any one of claims 1 to 8, characterized in that the gas mixture consists essentially of an inert gas and an olefin, and wherein the gas mixture contains 20-80 vol. %, preferably 40-60 vol. % olefin. 10. Устройство для проведения способа по любому из пп.1-9, содержащее, по меньшей мере, a) реактор для полимеризации (1); b) разгрузочный резервуар (10); c) фильтр для задержки мелких частиц полимера (14); d) аппаратуру для удаления катализаторного яда (17); e) разделительный блок (18) для разделения олефина и инертного газа; f) компрессор (20) для обратной подачи олефина в реактор для полимеризации с псевдоожиженным слоем; а также соединительные линии между приспособлениями a)-f).10. A device for carrying out the method according to any one of claims 1 to 9, containing at least a) a polymerization reactor (1); b) discharge tank (10); c) a filter for retaining fine polymer particles (14); d) catalyst poison removal equipment (17); e) a separation unit (18) for separating the olefin and inert gas; f) a compressor (20) for feeding the olefin back to the fluidized bed polymerization reactor; and also connecting lines between devices a) -f).
RU2001129361/04A 1999-04-01 2000-03-23 Method of isolation of olefins using installations for production of polyolefins RU2240330C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19915106.7 1999-04-01
DE19915106A DE19915106A1 (en) 1999-04-01 1999-04-01 Isolating olefin for recycling in gas-phase olefin polymerization processes involves separating olefin from inert gas in a separator unit and removing catalyst poison in apparatus connected to the separator

Publications (2)

Publication Number Publication Date
RU2001129361A true RU2001129361A (en) 2003-07-10
RU2240330C2 RU2240330C2 (en) 2004-11-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2001129361/04A RU2240330C2 (en) 1999-04-01 2000-03-23 Method of isolation of olefins using installations for production of polyolefins

Country Status (11)

Country Link
US (1) US6462150B1 (en)
EP (1) EP1181321B1 (en)
JP (1) JP4684422B2 (en)
KR (1) KR100663053B1 (en)
CN (1) CN1136235C (en)
AU (1) AU4108200A (en)
BR (1) BR0009498B1 (en)
DE (2) DE19915106A1 (en)
ES (1) ES2223497T3 (en)
RU (1) RU2240330C2 (en)
WO (1) WO2000059957A1 (en)

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DE102004054304A1 (en) * 2004-11-09 2006-05-11 Basell Polyolefine Gmbh Device, for polymerizing olefins (e.g. ethylene), comprises gas phase fluidized bed reactor, product outlet pipe connected to back gas filter (having inlet and outlet chambers, flat filter medium and particle outlet) and compressor
US7098301B1 (en) 2005-07-29 2006-08-29 Exxonmobil Chemical Patents Inc. High pressure filter method of separating polymer solids and unreacted monomer
BRPI0714078B1 (en) * 2006-08-03 2019-03-12 Basell Polyolefine Gmbh PROCESS FOR FINISHING POLYLEPHINS
WO2011146189A2 (en) 2010-05-20 2011-11-24 Exxonmobil Chemical Patents Inc. Improved alkylation process
SG11201406523XA (en) * 2012-04-13 2014-11-27 Chevron Phillips Chemical Co Ethylene recovery by absorption
CN104801133B (en) * 2015-03-31 2016-11-23 中国寰球工程公司 Fine powder removing and the method for TEAL inactivation in vapor phase method polyolefin process tail gas
DE102015213252A1 (en) * 2015-07-15 2017-01-19 Wacker Chemie Ag Continuous process for the purification of process exhaust air resulting from the production of silicones
CN105111345B (en) * 2015-10-14 2017-10-24 蔡祥军 Suitable for the gas-phase fluidized-bed discharge system of list and discharging method of multi-region polymerisation

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