EP1198440A1 - Procede pour purifier des flux d'alimentation contenant des olefines, dans des procedes de polymerisation ou d'alkylation - Google Patents

Procede pour purifier des flux d'alimentation contenant des olefines, dans des procedes de polymerisation ou d'alkylation

Info

Publication number
EP1198440A1
EP1198440A1 EP00949302A EP00949302A EP1198440A1 EP 1198440 A1 EP1198440 A1 EP 1198440A1 EP 00949302 A EP00949302 A EP 00949302A EP 00949302 A EP00949302 A EP 00949302A EP 1198440 A1 EP1198440 A1 EP 1198440A1
Authority
EP
European Patent Office
Prior art keywords
zsm
adsorption layer
zeolite
mcm
olefin
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP00949302A
Other languages
German (de)
English (en)
Inventor
Hermann Uhr
Wolfgang Vodrazka
Konrad Mitulla
Jürgen DOSCH
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of EP1198440A1 publication Critical patent/EP1198440A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/12—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02—Monocyclic hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/12—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
    • C07C7/13—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers by molecular-sieve technique

Definitions

  • the invention relates to a process for the purification of feed streams containing olefins in polymerization or alkylation processes and to processes for the preparation of alkylbenzenes by catalytic conversion of benzene and olefins.
  • Ethylbenzene is mainly obtained by the catalytic alkylation of benzene with ethylene.
  • Aluminum chloride is used as the catalyst in the liquid phase and Lewis acids or synthetic zeolites in the gas phase.
  • Zeolites are highly active catalysts for both alkylation and transalkylation. Although the zeolite catalysts are less sensitive to water, sulfur and other catalyst poisons, they lose their activity over time and have to be regenerated periodically.
  • WO 98/07673 describes the alkylation of benzene with, for example, propylene. The benzene was pretreated by passing it over mordenite.
  • the life of zeolite catalysts in the transalkylation of polyalkylbenzenes can be extended by adding gaseous hydrogen.
  • No. 5,030,786 proposes to reduce the water content in the aromatics feed stream to below 100 ppm in the alkylation or transalkylation reaction over zeolite catalysts.
  • WO 93/00992 finds that the zeolite catalyst should have a minimum water content of more than 3.5 percent by weight, based on the catalyst composition, in the alkylation or transalkylation, especially in the start-up phase.
  • ethylene is produced in steam crackers.
  • the ethylene content is usually over 99.9 percent by weight. It also contains small amounts of sulfur, oxygen, acetylene, hydrogen, carbon monoxide and carbon dioxide.
  • ethylene in large quantities for polymerization to form polyethylene such as HDPE, LDPE and LLDPE used.
  • a so-called "polymer grade ethylene" is used in particular for the polymerization.
  • the object of the present invention was to find a process for improving the activity of catalysts for olefin polymerization. Furthermore, a method for extending the life and reducing the recycling times of alkylation or transalkylation catalysts in the catalytic alkylation of benzene with olefins, in particular on zeolite catalysts, should be found.
  • the process can also be used for feed streams containing olefins in other processes.
  • it is particularly suitable for the polymerization and alkylation processes in which catalysts which are sensitive to the smallest amounts of impurities are used.
  • Carbon-containing adsorbents such as carbon black, activated carbon or carbon molecular sieves, oxygen-containing compounds such as aluminum oxides, silica gels, natural or synthetic aluminumates, silicates, aluminum silicates or zeolites and molecular sieves are suitable for the adsorption layer.
  • oxygen-containing compounds such as aluminum oxides, silica gels, natural or synthetic aluminumates, silicates, aluminum silicates or zeolites and molecular sieves are suitable for the adsorption layer.
  • the structure, properties and production of zeolites are described, for example, in Zeolite Molecular Sieves, Donald W. Breck, John Wiley & Sons, 1974; Atlas of Zeolite Structure Types, 3rd Ed. WM Meier and DH Olson, Butterworth-Heinemann, 1992 or Handbook of Molecular Sieves, R. Szostak, Chapman & Hal1, New York, 1992.
  • Preferred zeolites are those of the type ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZS -23, ZSM-35, ZSM-48, beta zeolite, zeolite Y, dealuminated zeolite Y, mordenite, zeolite MCM- 22, MCM-41, MCM-49, MCM-56. Also preferred are alumina or activated alumina, especially for alkaline contaminants. Fuller earths are also used occasionally. Because of the surface properties, carbon-containing adsorbents are preferably used for organic and non-polar contaminants. In general, the adsorbents are used in the form of spheres, rods or granules with an external dimension of 1 to 10 mm.
  • the process according to the invention can be carried out in sections or continuously in adsorbers with fixed, moving or fluidized beds.
  • the adsorption layer is particularly preferably located in a fixed bed reactor. It is expedient to use two or more fixed bed adsorbers which can be operated alternately for the purification of the olefin stream or for the regeneration.
  • the size of the adsorber depends on the type and amount of impurities and the desired regeneration cycles.
  • the olefin feed stream is passed over the adsorption layer at a temperature in the range from 0 to 300 ° C., preferably 50 to 250 ° C. and a pressure in the range from 1 to 45 bar.
  • Ethylene or propylene are preferably used as the olefin.
  • Polymer-grade ethylene is particularly preferably used.
  • the process according to the invention is preferably used for the pretreatment of ethylene or propylene feed streams in the catalytic alkylation of benzenes, in particular alkylation reactions catalyzed by Lewis acids or zeolites.
  • Such methods are e.g. B. in Ulimann, Encycl. of Industrial Chemistry, 5 h Ed. Vol A10, pages 35 to 43. It is particularly preferably used in the zeolite-catalyzed alkylation or transalkylation of benzene and ethylene.
  • Such processes and suitable catalysts are described, for example, in US 5,902,917, US 4,891,448, US 5,081,323, US 5,198595, US 5,243,116 or WO 98/07673.
  • a zeolite of the same type of the zeolite used for the catalyst or with similar pore diameters and pore size distribution is particularly preferably used for the adsorption layer.
  • the benzene or alkyl and polyalkylbenzene feed streams are expediently passed through a corresponding adsorption layer in the alkylation of benzene.
  • Example 1 was repeated with the adsorbents shown in the table.
  • the desorption was carried out by eluting the adsorbent using 1N H 2 S0.
  • the results are summarized in the table.
  • the recovery rate is a measure of the adsorption effect.
  • Tonsil CO 614 G aluminum silicate from Süd-chemie

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

L'invention concerne un procédé pour purifier des flux d'alimentation contenant des oléfines, dans des procédés de polymérisation ou d'alkylation. Selon ce procédé, on fait passer le flux d'alimentation à travers une couche d'adsorption. L'invention concerne également des procédés pour produire des alkylbenzènes par réaction catalytique de benzène et d'oléfines que l'on a fait passer à travers une couche d'adsorption.
EP00949302A 1999-07-26 2000-07-11 Procede pour purifier des flux d'alimentation contenant des olefines, dans des procedes de polymerisation ou d'alkylation Ceased EP1198440A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19934144 1999-07-26
DE1999134144 DE19934144A1 (de) 1999-07-26 1999-07-26 Verfahren zur Reinigung von Olefine enthaltenden Zufuhrströmen in Polymerisations- oder Alkylierungsverfahren
PCT/EP2000/006561 WO2001007383A1 (fr) 1999-07-26 2000-07-11 Procede pour purifier des flux d'alimentation contenant des olefines, dans des procedes de polymerisation ou d'alkylation

Publications (1)

Publication Number Publication Date
EP1198440A1 true EP1198440A1 (fr) 2002-04-24

Family

ID=7915508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00949302A Ceased EP1198440A1 (fr) 1999-07-26 2000-07-11 Procede pour purifier des flux d'alimentation contenant des olefines, dans des procedes de polymerisation ou d'alkylation

Country Status (3)

Country Link
EP (1) EP1198440A1 (fr)
DE (1) DE19934144A1 (fr)
WO (1) WO2001007383A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1639089A (zh) 2002-02-28 2005-07-13 斯东及韦伯斯特公司 烷基芳香族化合物的制备
US7199275B2 (en) 2003-03-24 2007-04-03 Exxonmobil Chemical Patents Inc. Feed pretreating
US6894201B1 (en) 2003-12-19 2005-05-17 Uop Llc Process and apparatus for the removal of nitrogen compounds from a fluid stream
US7205448B2 (en) 2003-12-19 2007-04-17 Uop Llc Process for the removal of nitrogen compounds from a fluid stream
DE102004045879B4 (de) * 2004-09-20 2007-06-14 Basf Ag Verfahren zur Reinigung von Aromaten enthaltenden Zufuhrströmen mit Zeolithen
JP5095633B2 (ja) 2006-02-14 2012-12-12 ビーエーエスエフ ソシエタス・ヨーロピア 吸着組成物および流体からのｃｏの除去方法
CN101472665B (zh) 2006-06-21 2012-02-01 巴斯夫欧洲公司 吸附组合物和从料流中除去co的方法
EP2097159A1 (fr) 2006-12-01 2009-09-09 Basf Se Matière adsorbante et procédé d'enlèvement de co dans des flux de substances
US8507745B1 (en) 2012-02-22 2013-08-13 Uop Llc Processes and systems for treating aromatic feed including an aromatic component and nitrogen-containing impurities, and processes and systems for preparing a reaction product of the aromatic component
US9150464B2 (en) 2012-05-31 2015-10-06 Uop Llc Methods and apparatus for treating a hydrocarbon stream
US9150463B2 (en) 2012-05-31 2015-10-06 Uop Llc Methods and apparatus for treating a hydrocarbon stream
KR20210078585A (ko) * 2019-12-18 2021-06-29 사빅 에스케이 넥슬렌 컴퍼니 피티이 엘티디 알파올레핀의 정제방법 및 이를 위한 알파올레핀 정제용 조성물

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1187603B (de) * 1955-10-10 1965-02-25 Phillips Petroleum Co Verfahren zur Reinigung von Olefinen
US2909574A (en) * 1958-01-29 1959-10-20 Texaco Inc Manufacture of alkylated aromatic hydrocarbons
GB879506A (en) * 1960-06-15 1961-10-11 Shell Res Ltd A process for the purification of olefines
DE1183491B (de) * 1961-07-20 1964-12-17 Basf Ag Verfahren zum Reinigen von Olefinen
DE1262261B (de) * 1962-06-07 1968-03-07 Basf Ag Verfahren zum Reinigen von polymerisierbaren Olefinkohlenwasserstoffen
US3242641A (en) * 1962-10-24 1966-03-29 Monsanto Co Purification of polymerizable olefin hydrocarbons
JPS60258211A (ja) * 1984-06-06 1985-12-20 Mitsui Toatsu Chem Inc プロピレンの重合方法
DE3612443A1 (de) * 1986-04-12 1987-10-22 Erdoelchemie Gmbh Verfahren zur herstellung von tetraisobutylen aus diisobutylen
DE3914817C2 (de) * 1989-05-05 1995-09-07 Huels Chemische Werke Ag Verfahren zur Oligomerisierung von Olefinen
US6124517A (en) * 1997-03-10 2000-09-26 Bp Amoco Corporation Olefin purification by adsorption of acetylenics and regeneration of adsorbent
US6080905A (en) * 1997-03-10 2000-06-27 Bp Amoco Corporation Olefin purification by adsorption of acetylenics and regeneration of adsorbent

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0107383A1 *

Also Published As

Publication number Publication date
DE19934144A1 (de) 2001-02-01
WO2001007383A1 (fr) 2001-02-01

Similar Documents

Publication Publication Date Title
EP1797024B1 (fr) Procede de purification de flux d'alimentation contenant des composes aromatiques au moyen de zeolithes
DE69911248T2 (de) Verbessertes verfahren zur alkylierung von aromaten
DE2756221C2 (fr)
US4433189A (en) Catalytic conversion of methanol to light olefins
EP1198440A1 (fr) Procede pour purifier des flux d'alimentation contenant des olefines, dans des procedes de polymerisation ou d'alkylation
JP4360909B2 (ja) トルエンの選択的不均化方法、トルエンとｃ９、ｃ９＋芳香族炭化水素との不均化およびアルキル交換反応方法
JP4275739B2 (ja) ゼオライトβを用いるアルキル化方法
US3917738A (en) Isoparaffin-olefin alkylation utilizing crystalline aluminosilicate catalyst in an adsorption zone
JP3988847B2 (ja) 芳香族炭化水素の変換のための触媒および方法および芳香族炭化水素の製造におけるそれらの使用
KR20090129516A (ko) 올레핀-함유 탄화수소 공급원료에서 일산화탄소를 감소시키는 방법
CN102766010B (zh) 丙烯的制备方法
AU2011358597B2 (en) Process for reducing the benzene content of gasoline by alkylating benzene using a lower olefin in the presence of a paraffinic diluent
US5756872A (en) Process for the treatment of FCCU off gas
CN113087585A (zh) 由混合c8芳烃生产对二甲苯和乙苯的方法
US4448983A (en) Preparation of alkyl carboxylates
US4251676A (en) Selective cracking reactions by cofeeding organic amine or ammonia
ITMI20010859A1 (it) Procedimento integrato per la produzione di ossidi olefinici
KR20150002714A (ko) 함산소물이 없는 c8-c12 방향족 탄화수소 스트림과 그의 제조 공정
US4234751A (en) Selective cracking of phenylalkanes
US11739035B2 (en) Gas to olefins processes with coproduction of hydrogen
AU2002301367B2 (en) Process for the removal of higher hydrocarbons from natural gas
JPH06298676A (ja) ２，６−ジエチルナフタレンの製造方法
DE102004003310A1 (de) Verbessertes Verfahren zur Herstellung von modifizierten, linearen Alkylbenzolen aus Benzol und langkettigen Olefinen
Raj et al. Catalytic Properties of Ferrisilicate Analogs of Some Medium Pore Zeolites in C7 and C8 Aromatic Hydrocarbon Reations
RO108424B1 (ro) Catalizator zeolitic, pentru sinteza etilbenzenului și procedeu pentru obținerea acestuia

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020124

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20030108

RBV Designated contracting states (corrected)

Designated state(s): BE DE ES NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20040416