EP2190953A2 - Verfahren und anlage zur herstellung von kohlenwasserstoffen - Google Patents
Verfahren und anlage zur herstellung von kohlenwasserstoffenInfo
- Publication number
- EP2190953A2 EP2190953A2 EP08801891A EP08801891A EP2190953A2 EP 2190953 A2 EP2190953 A2 EP 2190953A2 EP 08801891 A EP08801891 A EP 08801891A EP 08801891 A EP08801891 A EP 08801891A EP 2190953 A2 EP2190953 A2 EP 2190953A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- reactor
- steam cracker
- cut
- composite system
- product
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C11/00—Aliphatic unsaturated hydrocarbons
- C07C11/02—Alkenes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2529/00—Catalysts comprising molecular sieves
- C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
- C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- C07C2529/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/20—C2-C4 olefins
Definitions
- the present invention relates to a process for the preparation of hydrocarbons, in particular C 2 -C 4 -olefins, using a composite plant with a steam cracker and at least one reactor for reacting a reactant mixture comprising steam and at least one oxygenate, wherein the respective Intermediate streams of the steam cracker and the reactor are at least partially combined. Furthermore, the present invention relates to an apparatus suitable for carrying out the method.
- the product mixture is then worked up in a separation apparatus comprising several distillation columns, with a propylene-rich fraction containing a propylene containing at least 95% by volume of a low molecular weight hydrocarbons fraction which is recycled to the catalyst bed and a gasoline hydrocarbon-rich fraction which is removed from the process is obtained.
- a disadvantage of this process is the low yield of propylene, based on the total carbon content in the educt mixture.
- SAPO silicoaluminophosphate
- the object of the present invention is to increase the yield of valuable products such as propylene.
- an energy saving should be achieved.
- intermediate product stream in the sense of the invention designates the liquid or gas stream which leaves the steam cracker or the oxygenate conversion reactor
- product stream designates in each case those liquid or gas streams which leave the composite plant and either end products, such as Ethylene or propylene, or product streams intended for recycle, e.g. Methane, pose.
- shape-selective zeolite catalysts the pore channel system of the zeolites used is characterized by defined pore openings.
- a prerequisite for the practicability of the present invention is the use of such a shape-selective zeolite catalyst capable of converting heavy hydrocarbons to ethylene and propylene.
- SAPO catalyst used in US 2005/0038304 A1 leads to increased formation of undesirable carbonaceous deposits (so-called coke deposits) in the case of the recycling of, in particular, relatively long-chain C 4 products from the steam cracking process.
- the conversion of the "waste streams" according to the invention has a further advantage which is specific for the MTP reactor: owing to the endothermic conversion of the C 4 -olefins into propylene and the additional heat capacity of the paraffins, the temperature profile in the MTP reactor can be raised and the propylene Selectivity be increased.
- the propylene yield is further increased by the use of recycled C 4 olefins as another source of propylene. Compared to two separate systems, this leads to an increase in yield and product value in a combined system. Overall, this results in a favorable change in the product spectrum of the combined plant, which essentially produces only the three main products ethylene, propylene and gasoline.
- the still occurring purge streams include "light ends” (volatile hydrocarbons lighter than propane), LPG, and "heavies” which are not further specified, yet the total level of by-product streams, such as the C 4 -MiX Overall, this results in an improved economic efficiency
- the oxygenate for the production of propylene consists of methanol and / or dimethyl ether.
- other oxygenates than methanol can in principle be used in the context of the invention.
- several oxygenates may also be present side by side in a mixture.
- zeolite catalysts which are suitable for the conversion of methanol and / or dimethyl ether to C 2 -C 4 -olefins can be used in the application of the process according to the invention
- aluminosilicate zeolites being used Of the pentasil type are particularly preferred.
- Very particular preference is given to the pentasil type ZSM-5 catalyst.
- the individual product streams of the composite system after their separation are fed to the steam cracker and / or the reactor (OTO reactor or MTP reactor).
- the return of various product streams is provided.
- the product stream consisting essentially of methane and / or "light ends" is preferably recycled to the reactor for the oxygenate conversion.
- the product stream consisting essentially of ethane and / or propane can be fed to the steam cracker.
- the product stream consisting essentially of Cs cut and / or C 6 cut can also be fed again to the reactor for the oxygenate conversion.
- the respective feedback takes place during ongoing operation of the compound system and each can be controlled independently.
- the recycling can be carried out in each case continuously and / or discontinuously.
- the invention also relates to a plant which is suitable for carrying out the process according to the invention and comprises a steam cracker and at least one catalytic reactor for reacting a feed mixture comprising steam and at least one oxygenate in a reaction mixture comprising low molecular weight olefins and gasoline hydrocarbons, wherein the each intermediate product streams are at least partially merged.
- At least one separating device is provided for separating the product mixture obtained after the merger of the intermediate product streams.
- the reactor has a shape-selective zeolite material as a catalyst, and the separation means are connected via return lines to the steam cracker and / or the reactor, so that at least part of the After the passage through the compound plant resulting product streams is traceable.
- the reactor for oxygenate conversion is integrated into the steam cracker.
- the reactor for the oxygenate reaction can be configured as a fixed bed reactor or as a tubular reactor.
- the formation as a fluidized bed reactor is not completely excluded, it is not preferred for reasons mentioned above.
- the reactor is designed as a tubular reactor, preferably a plurality of axially arranged tubes are provided therein, which for example have a length between 1 and 5 m and an inner diameter of 20 to 50 mm.
- two or more reactors connected in series can be used.
- more than two fixed bed reactors connected in series, each filled with a shape-selective zeolite catalyst, have proven to be particularly suitable for this embodiment. It is envisaged that in the first fixed bed reactor, a portion of the educt mixture from the prereactor and in each further fixed bed reactor, the product mixture of this fixed bed reactor is passed together with a partial stream of the reactant mixture from the prereactor. By this embodiment, particularly good degrees of conversion are obtained.
- the educt mixture is passed through only one reactor in which at least two catalyst stages arranged one behind the other are provided.
- the individual catalyst stages are preferably arranged one below the other and are from the educt mixture from above flows through downwards.
- the reactant mixture is distributed from the prereactor to the individual catalyst stages.
- Fig. 1 shows schematically the interconnection of a MTP reactor with a
- FIG. 2 shows a simplified separation scheme of a composite system consisting of an ethane cracker and an MTP reactor after the intermediate product streams have been combined.
- a steam cracker 2 for the conversion of ethane (ethane cracker) is connected to a reactor 3 for the oxygenate conversion, in particular an MTP reactor.
- FIG. 2 illustrates in simplified terms the separation of the combined intermediate product streams 4, 5 from the ethane cracker 2 and the MTP reactor 3 of the composite plant 1.
- the intermediate product streams 4, 5 brought from the cracker 2 and the MTP reactor 3 become different after drying switched separation devices, for example. Distillation columns, abandoned, if necessary, after further processing by hydrogenation or extraction to achieve the product streams 7 to 11. From the water quench device 16 also a largely existing water 20 is discharged as a product.
- the product streams 7 to 11 are returned via recycle lines 12 to 15 to the MTP reactor 3 and the cracker 2. It is quite possible that the C 4 product stream is taken off both through the line 15 as end product (stream 9), and partly as stream 10 is returned through the return line 12 to the MTP reactor 3. The same applies to the product streams consisting of methane and / or light ends. example
- the product distribution when using a cracker or a system according to the invention can be calculated on the basis of published results for the product spectrum of a cracker and the process data of the MTP process. For this calculation, consideration was given to the recycling of different streams analogously to FIG. 2 and the resulting effects on the product yield. This includes the degrees of conversion and selectivities of the various components (ethane and propane in the cracker, CrC ⁇ olefins in the MTP reactor).
- the cracker alone was assumed to have a typical world-scale capacity of about 800,000 t / a of ethylene.
- an upstream mega-methanol plant (compare EP 0 790 226 B1) with a capacity of 5000 t / d of methanol was assumed.
- the purge rates of the recycle streams have been adjusted to give realistic ratios between feed and recycle levels (C 2 - 5%, C 4 - 5%, C 5 - 20%).
- the invention thus results in a composite system with a surprisingly improved product range, while the capacity of the single-unit crackers or MTP reactor remains the same.
- oxygenate conversion reactor e.g., MTP reactor
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007045238A DE102007045238A1 (de) | 2007-09-21 | 2007-09-21 | Verfahren und Anlage zur Herstellung von Kohlenwasserstoffen |
PCT/EP2008/007299 WO2009039948A2 (de) | 2007-09-21 | 2008-09-06 | Verfahren und anlage zur herstellung von kohlenwasserstoffen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2190953A2 true EP2190953A2 (de) | 2010-06-02 |
Family
ID=40417872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08801891A Withdrawn EP2190953A2 (de) | 2007-09-21 | 2008-09-06 | Verfahren und anlage zur herstellung von kohlenwasserstoffen |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100206771A1 (de) |
EP (1) | EP2190953A2 (de) |
CN (1) | CN101802138A (de) |
DE (1) | DE102007045238A1 (de) |
WO (1) | WO2009039948A2 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102639676B (zh) * | 2009-11-10 | 2015-05-27 | 国际壳牌研究有限公司 | 用于生产烯烃的方法 |
SG10201407378RA (en) | 2009-11-10 | 2015-01-29 | Shell Int Research | Process for the preparation of a lower olefin product |
WO2011057975A2 (en) | 2009-11-10 | 2011-05-19 | Shell Internationale Research Maatschappij B.V. | Process and integrated system for the preparation of a lower olefin product |
CN102666807B (zh) * | 2009-11-10 | 2016-01-20 | 国际壳牌研究有限公司 | 用于生产烯烃的方法 |
WO2011057980A1 (en) | 2009-11-10 | 2011-05-19 | Shell Internationale Research Maatschappij B.V. | Process for producing ethylene oxide |
EP2560935A1 (de) | 2010-04-23 | 2013-02-27 | Shell Internationale Research Maatschappij B.V. | Verfahren zur herstellung aromatischer kohlenwasserstoffe und ethylen |
US8829259B2 (en) * | 2010-08-10 | 2014-09-09 | Uop Llc | Integration of a methanol-to-olefin reaction system with a hydrocarbon pyrolysis system |
CN101928598B (zh) * | 2010-09-28 | 2013-05-01 | 上海应用技术学院 | 一种重油催化裂化集成含氧化合物转化生产汽油和丙烯的方法及系统 |
DE102011014892A1 (de) | 2011-03-23 | 2012-09-27 | Lurgi Gmbh | Verfahren und Anlage zur Herstellung von niedermolekularen Olefinen |
DE102011082616A1 (de) * | 2011-09-13 | 2013-03-14 | H2K Maschinen- und Verfahrenstechnische Anlagen UG (haftungsbeschränkt) | Vorrichtung, System und Verfahren zum Spalten von Kohlenwasserstoffketten |
US20150148574A1 (en) * | 2011-12-27 | 2015-05-28 | Shell Internationale Research Maatschappij B.V. | Process for the preparation of an olefin product |
US9133077B2 (en) | 2011-12-27 | 2015-09-15 | Shell Oil Company | Process for the preparation of a lower olefin product |
WO2013098200A1 (en) | 2011-12-27 | 2013-07-04 | Shell Internationale Research Maatschappij B.V. | Process for the preparation of olefins |
US9221726B2 (en) | 2011-12-27 | 2015-12-29 | Shell Oil Company | Integrated process for the preparation of an aromatic product |
SG11201408703YA (en) * | 2012-07-05 | 2015-03-30 | Shell Int Research | Integrated process for the preparation of olefins |
US9745519B2 (en) | 2012-08-22 | 2017-08-29 | Kellogg Brown & Root Llc | FCC process using a modified catalyst |
EP2938591A1 (de) | 2012-12-28 | 2015-11-04 | Shell Internationale Research Maatschappij B.V. | Verfahren zur herstellung eines olefinprodukts mit ethylen und/oder propylen |
BR112016013092B1 (pt) | 2013-12-17 | 2018-12-11 | Braskem S.A. | processo de produção de hidrocarbonetos insaturados leves |
US10427990B2 (en) | 2016-03-04 | 2019-10-01 | Technip France | Recycling system and process of a methanol-to-propylene and steam cracker plant |
CN105885912B (zh) * | 2016-06-20 | 2017-09-22 | 济南隆凯能源科技有限公司 | 引射循环分级反应分步调整的甲醇制烃方法及装置 |
CN110218138A (zh) * | 2019-06-13 | 2019-09-10 | 国家能源投资集团有限责任公司 | 一种甲醇制丙烯技术中提高烯烃产量的方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3210756A1 (de) * | 1982-03-24 | 1983-09-29 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von olefinen aus methanol und/oder dimethylether |
DE4009459A1 (de) * | 1990-03-23 | 1991-09-26 | Metallgesellschaft Ag | Verfahren zur erzeugung von niederen olefinen |
US5523502A (en) * | 1993-11-10 | 1996-06-04 | Stone & Webster Engineering Corp. | Flexible light olefins production |
DE19605572A1 (de) | 1996-02-15 | 1997-08-21 | Metallgesellschaft Ag | Verfahren zum Erzeugen von Methanol |
US6049017A (en) * | 1998-04-13 | 2000-04-11 | Uop Llc | Enhanced light olefin production |
DE10027159A1 (de) | 2000-05-31 | 2001-12-13 | Mg Technologies Ag | Verfahren zum Erzeugen von Propylen aus Methanol |
US6768036B2 (en) * | 2001-12-31 | 2004-07-27 | Exxonmobil Chemical Patents Inc. | Method for adding heat to a reactor system used to convert oxygenates to olefins |
US20050038304A1 (en) | 2003-08-15 | 2005-02-17 | Van Egmond Cor F. | Integrating a methanol to olefin reaction system with a steam cracking system |
-
2007
- 2007-09-21 DE DE102007045238A patent/DE102007045238A1/de not_active Withdrawn
-
2008
- 2008-09-06 US US12/678,566 patent/US20100206771A1/en not_active Abandoned
- 2008-09-06 CN CN200880107619A patent/CN101802138A/zh active Pending
- 2008-09-06 EP EP08801891A patent/EP2190953A2/de not_active Withdrawn
- 2008-09-06 WO PCT/EP2008/007299 patent/WO2009039948A2/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2009039948A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2009039948A3 (de) | 2010-02-18 |
WO2009039948A2 (de) | 2009-04-02 |
US20100206771A1 (en) | 2010-08-19 |
DE102007045238A1 (de) | 2009-04-09 |
CN101802138A (zh) | 2010-08-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2009039948A2 (de) | Verfahren und anlage zur herstellung von kohlenwasserstoffen | |
DE102005048931B4 (de) | Verfahren und Anlage zur Herstellung von C2-C4-Olefinen aus Methanol und/oder Dimethylether | |
EP1844125B1 (de) | Verfahren zur herstellung von synthetischen kraftstoffen aus oxigenaten | |
EP1289912A1 (de) | Verfahren zum erzeugen von propylen aus methanol | |
DE102005029399B4 (de) | Verfahren und Anlage zur Herstellung von C2-C4-Olefinen aus Methanol und/oder Dimethylether mit erhöhter Ausbeute | |
WO2016038209A1 (de) | Verfahren und anlage zur herstellung von kohlenwasserstoffen | |
DE10217863A1 (de) | Verfahren und Vorrichtung zur Olefinherstellung | |
DE102014118967A1 (de) | Anlage und Verfahren zur Herstellung von Propylen aus Methanol | |
EP3652138A1 (de) | Prozess und anlage zur herstellung von propylen durch kombination von propandehydrierung und dampfspaltverfahren mit vortrennschritten in beiden verfahren zur teilweise entfernung von wasserstoff und methan | |
EP2688859B1 (de) | Verfahren und anlage zur herstellung von niedermolekularen olefinen | |
EP1357165A1 (de) | Verfahren und Vorrichtung zur Olefinherstellung | |
DE102013101577B4 (de) | Verfahren und Anlage zur Herstellung von Olefinen aus Oxygenaten | |
DE102013101578B4 (de) | Verfahren und Anlage zur Herstellung von Olefinen aus Oxygenaten | |
WO2015118125A1 (de) | Verfahren und anlage zur herstellung von olefinen | |
WO2019012051A1 (de) | Prozess und anlage zur herstellung von propylen durch kombination von propandehydrierung und dampfspaltverfahren mit propan-rückführung in das dampfspaltverfahren | |
EP3041916B1 (de) | Verfahren zur erzeugung von kohlenwasserstoffprodukten | |
EP3191433A1 (de) | Verfahren und anlage zur herstellung von kohlenwasserstoffen | |
WO2015118108A1 (de) | Verfahren zur herstellung von olefinen | |
WO2017186752A1 (de) | Verfahren und anlage zur erzeugung von olefinen | |
WO2017068162A1 (de) | Verfahren zur herstellung von olefinen | |
DE102013014867A1 (de) | Verfahren und Anlage zur Erzeugung von Kohlenwasserstoffprodukten | |
DE102013014802A1 (de) | Verfahren und Anlage zur Erzeugung von Kohlenwasserstoffprodukten | |
DE102012112839A1 (de) | Verfahren zur Inbetriebnahme einer Anlage für die Herstellung von Propylen |
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: 20100305 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
DAX | Request for extension of the european patent (deleted) | ||
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: LIEBNER, WALDEMAR Inventor name: BACH, HERMANN Inventor name: KOEMPEL, HARALD Inventor name: ROTHAEMEL, MARTIN |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: AIR LIQUIDE GLOBAL E&C SOLUTIONS GERMANY GMBH |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20140401 |