TW201925146A - Method for preparing isobutene oligomer - Google Patents
Method for preparing isobutene oligomer Download PDFInfo
- Publication number
- TW201925146A TW201925146A TW107135348A TW107135348A TW201925146A TW 201925146 A TW201925146 A TW 201925146A TW 107135348 A TW107135348 A TW 107135348A TW 107135348 A TW107135348 A TW 107135348A TW 201925146 A TW201925146 A TW 201925146A
- Authority
- TW
- Taiwan
- Prior art keywords
- oligomer
- isobutylene
- carbon atoms
- weight
- isobutene
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
本發明係關於一種用於製備異丁烯寡聚物之方法,且更具體言之,係關於一種以下技術,其中使用硫酸化之氧化鋯催化劑,使異丁烯寡聚物產物當中的具有8或超過8個碳原子之組分再循環至反應器中以便控制反應熱量,由此提昇具有12或超過12個碳原子之異丁烯寡聚物的產率。The present invention relates to a process for preparing an isobutylene oligomer, and more particularly to a technique in which a sulfated zirconia catalyst is used to have 8 or more of the isobutylene oligomer products. The components of the carbon atoms are recycled to the reactor to control the heat of reaction, thereby increasing the yield of the isobutylene oligomer having 12 or more carbon atoms.
異烷烴藉由使異丁烯寡聚及氫化來製造。其中特別地,具有12或超過12個碳原子之異烷烴具有高洗滌性、化學穩定性、無氣味、低毒性等等特性。其亦用作清潔劑、除油劑、著色劑以及油漆稀釋劑及聚合物引發劑稀釋劑。本發明描述一種在使用攜有硫酸之氧化鋯催化劑以維持其較長催化劑壽命的同時以高產率獲得具有12或超過12個碳原子之異丁烯寡聚物的方法。Isoalkanes are produced by oligomerization and hydrogenation of isobutylene. Among them, isoalkanes having 12 or more carbon atoms have characteristics of high detergency, chemical stability, odorlessness, low toxicity and the like. It is also used as a cleaning agent, degreaser, colorant, and paint thinner and polymer initiator diluent. The present invention describes a process for obtaining isobutylene oligomers having 12 or more carbon atoms in high yield while using a sulfuric acid-bearing zirconia catalyst to maintain their longer catalyst life.
一般而言,為了在異丁烯寡聚物製備方法中提昇寡聚物之產率,由自寡聚反應獲得之流出物分離出未反應之異丁烯且將其再循環至反應器中。此外,為了抑制由異丁烯寡聚反應期間之熱量產生造成的催化劑受損或焦炭形成,使產物之一部分再循環且一般使異丁烯寡聚物氫化以使所製備之飽和寡聚物再循環。In general, in order to increase the yield of the oligomer in the isobutylene oligomer preparation process, unreacted isobutylene is separated from the effluent obtained from the oligomerization reaction and recycled to the reactor. Further, in order to suppress catalyst damage or coke formation caused by heat generation during the isobutylene oligomerization reaction, one of the products is partially recycled and the isobutylene oligomer is generally hydrogenated to recycle the prepared saturated oligomer.
然而,為了提昇具有所需數目個碳原子之異丁烯寡聚物的產率以控制異丁烯寡聚反應之熱量,不存在使在寡聚反應中所獲得之異丁烯寡聚物再循環的實例。在異丁烯寡聚物當中,將具有8或超過8個碳原子之一些寡聚物再循環至反應器中,由此在控制反應之熱量的同時提昇具有12或超過12個碳原子之異丁烯寡聚物的產率。However, in order to increase the yield of the isobutylene oligomer having the desired number of carbon atoms to control the heat of the isobutylene oligomerization reaction, there is no example of recycling the isobutylene oligomer obtained in the oligomerization reaction. Among the isobutylene oligomers, some oligomers having 8 or more than 8 carbon atoms are recycled to the reactor, thereby raising the isobutylene oligomerization having 12 or more carbon atoms while controlling the heat of the reaction. The yield of the substance.
已應用本發明以致力於提供一種製備異丁烯寡聚物之方法,其為一種用於在控制反應之熱量的同時增加具有12或超過12個碳原子之異丁烯寡聚物的產率的方法。The present invention has been made in an effort to provide a process for producing an isobutylene oligomer which is a method for increasing the yield of an isobutylene oligomer having 12 or more carbon atoms while controlling the heat of the reaction.
在本發明之一個例示性實施例中,在異丁烯之寡聚反應中所用的反應物為以一定量或更多量包括異丁烯之C4(亦即四個碳原子)烴物流,且適合地包括70重量%或超過70重量%之異丁烯以及丙烯、1-丁烯及2-丁烯。In an exemplary embodiment of the invention, the reactants used in the oligomerization of isobutylene are C4 (ie, four carbon atoms) hydrocarbon streams comprising isobutylene in an amount or greater, and suitably 70. % by weight or more than 70% by weight of isobutylene and propylene, 1-butene and 2-butene.
在寡聚反應中所用之催化劑為在硫酸化之氧化鋯催化劑中具有0.1重量%或超過0.1重量%之硫的催化劑。寡聚反應可以分批法或連續法執行,但使用固定床反應器之連續反應適合於該反應。因為經硫酸處理之氧化鋯在500℃或高於500℃之溫度下發生熱解,所以用於寡聚反應之溫度可在室溫至500℃且適合地50℃至200℃之範圍內變化。此外,反應壓力可適合地為15巴或超過15巴,且每小時重量空間速度(weight hourly space velocity;WHSV)可適合地為50 h-1 或小於50 h-1 。The catalyst used in the oligomerization reaction is a catalyst having 0.1% by weight or more of sulfur in the sulfated zirconia catalyst. The oligomerization reaction can be carried out in a batch process or in a continuous process, but a continuous reaction using a fixed bed reactor is suitable for the reaction. Since the sulfuric acid-treated zirconia undergoes pyrolysis at a temperature of 500 ° C or higher, the temperature for the oligomerization reaction may vary from room temperature to 500 ° C and suitably from 50 ° C to 200 ° C. Further, the reaction pressure may suitably be 15 bar or more than 15 bar, and the weight hourly space velocity (WHSV) may suitably be 50 h -1 or less than 50 h -1 .
在自寡聚反應收集之流出物,將該等異丁烯寡聚物流出物中具有8或超過8個碳原子之一部分再循環至反應器中。The effluent collected from the oligomerization reaction is recycled to the reactor in a portion of the isobutylene oligomer effluent having 8 or more than 8 carbon atoms.
根據本發明之例示性實施例,在異丁烯寡聚物製備中,在藉由寡聚反應獲得之異丁烯寡聚物當中,將寡聚物中具有8或超過8個碳原子之一部分再循環至反應器中,由此控制該反應之熱量且增加具有12或超過12個碳原子之寡聚物的產率。According to an exemplary embodiment of the present invention, in the preparation of the isobutylene oligomer, among the isobutylene oligomers obtained by the oligomerization reaction, a portion having 8 or more than 8 carbon atoms in the oligomer is recycled to the reaction. In this case, the heat of the reaction is thereby controlled and the yield of the oligomer having 12 or more carbon atoms is increased.
前述發明內容僅為說明性的,且不意欲以任何方式進行限制。除上文所描述之說明性態樣、實施例及特徵以外,參考附圖及以下實施方式,其他態樣、實施例及特徵將變得顯而易見。The foregoing summary is illustrative only and is not intended to be limiting. Other aspects, embodiments, and features will become apparent from the description and drawings.
將以一定量或更多量包括異丁烯之C4烴物流1引入至填充有催化劑之反應器2中。在反應器2中將異丁烯轉變成寡聚物,且將寡聚物產物3轉移至第一蒸餾塔4中。藉由塔頂產物分離出未反應之異丁烯及C 4烴5且對其進行回收。將分離至其塔底產物中的具有8或超過8個碳原子之寡聚物6饋入至氫化反應器8中。其中,將寡聚物7中具有8或超過8個碳原子之一部分再循環至反應器2中。使向氫化反應器8中供應的具有8或超過8個碳原子之寡聚物6與氫氣9反應,由此製備異烷烴10。The C4 hydrocarbon stream 1 comprising isobutylene in a certain amount or more is introduced into the reactor 2 filled with the catalyst. The isobutylene is converted into an oligomer in the reactor 2, and the oligomer product 3 is transferred to the first distillation column 4. Unreacted isobutylene and C 4 hydrocarbon 5 are separated by overhead product and recovered. The oligomer 6 having 8 or more than 8 carbon atoms separated into its bottom product is fed to the hydrogenation reactor 8. Therein, a portion having 8 or more than 8 carbon atoms in the oligomer 7 is recycled to the reactor 2. The oligomer 6 having 8 or more than 8 carbon atoms supplied to the hydrogenation reactor 8 is reacted with hydrogen 9, whereby isoalkane 10 is produced.
1‧‧‧C4烴物流1‧‧‧C4 hydrocarbon logistics
2‧‧‧反應器2‧‧‧Reactor
3‧‧‧寡聚物產物3‧‧‧ oligomer product
4‧‧‧第一蒸餾塔4‧‧‧First distillation tower
5‧‧‧C4烴5‧‧‧C4 hydrocarbon
6‧‧‧寡聚物6‧‧‧ oligomer
7‧‧‧寡聚物之一部分7‧‧‧One part of the oligomer
8‧‧‧氫化反應器8‧‧‧Hydrogenation reactor
9‧‧‧氫氣9‧‧‧ Hydrogen
10‧‧‧異烷烴10‧‧‧isoalkanes
圖1為描繪一種根據本發明之一個實施例製備異丁烯寡聚物之方法的示意圖。1 is a schematic diagram depicting a method of preparing an isobutylene oligomer in accordance with one embodiment of the present invention.
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20170155411 | 2017-11-21 | ||
??10-2017-0155411 | 2017-11-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW201925146A true TW201925146A (en) | 2019-07-01 |
Family
ID=66602243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW107135348A TW201925146A (en) | 2017-11-21 | 2018-10-08 | Method for preparing isobutene oligomer |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2019094320A (en) |
CN (1) | CN109809956A (en) |
TW (1) | TW201925146A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102211625B1 (en) * | 2019-06-28 | 2021-02-02 | 한화토탈 주식회사 | Method for preparing isobutene oligomer |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57149232A (en) * | 1981-03-11 | 1982-09-14 | Showa Denko Kk | Preparation of isobutene oligomer |
US5811608A (en) * | 1995-12-15 | 1998-09-22 | Uop Llc | Process for oligomer production and saturation |
DE10015002A1 (en) * | 2000-03-25 | 2001-09-27 | Basf Ag | Production of essentially unsaturated oligomers of 4-6C alkenes at a supported nickel catalyst in an adiabatic reactor comprises recycling unreacted alkene to the reactor |
US6875899B2 (en) * | 2001-02-01 | 2005-04-05 | Exxonmobil Chemical Patents Inc. | Production of higher olefins |
DE10302457B3 (en) * | 2003-01-23 | 2004-10-07 | Oxeno Olefinchemie Gmbh | Process for the preparation of butene oligomers and tert-butyl ethers from isobutene-containing C4 streams |
WO2009095411A1 (en) * | 2008-01-29 | 2009-08-06 | Basf Se | Method for oligomerizing alkenes |
CN102791372A (en) * | 2010-03-17 | 2012-11-21 | 出光兴产株式会社 | Catalyst for oligomerization of olefins |
EP2738151B8 (en) * | 2012-11-28 | 2014-12-17 | Saudi Basic Industries Corporation | Process for oligomerization of ethylene |
-
2018
- 2018-10-08 TW TW107135348A patent/TW201925146A/en unknown
- 2018-10-19 JP JP2018197362A patent/JP2019094320A/en active Pending
- 2018-10-26 CN CN201811253731.1A patent/CN109809956A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CN109809956A (en) | 2019-05-28 |
JP2019094320A (en) | 2019-06-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9029619B2 (en) | Process to make alpha olefins from ethanol | |
RU2333206C2 (en) | Method of obtaining alkyleneoxide | |
KR100763216B1 (en) | Method for producing high-purity diisobutene | |
JP2011527287A5 (en) | ||
CA2548574C (en) | Improvements in or relating to catalysed reactions | |
KR101849422B1 (en) | Process for co-oligomerization of olefins | |
TW201925146A (en) | Method for preparing isobutene oligomer | |
US3341614A (en) | Production of detergent alkylate | |
JP4292072B2 (en) | Production of t-butanol | |
KR20070084335A (en) | Diisobutylene process | |
CN111073690B (en) | Process for oligomerizing olefins using a reduced olefin content stream | |
KR101959112B1 (en) | Preparation method of isobutene oligomer from C4 hydrocarbon stream containing isobutene | |
KR20190040619A (en) | method for preparing isobutene oligomer | |
US2392554A (en) | Manufacture of mercaptans | |
KR102211625B1 (en) | Method for preparing isobutene oligomer | |
TW202124340A (en) | Method for producing propylene oligomer | |
US3325554A (en) | Process for the production of olefines by the dehydrochlorination of alkyl chlorides | |
US2436932A (en) | Production of polycyclic hydrocarbons | |
US2902523A (en) | Process for producing normally liquid olefinic hydrocarbons | |
JP3360761B2 (en) | Olefin catalytic hydration method | |
JP3360759B2 (en) | Olefin catalytic hydration method | |
US20180345268A1 (en) | Detergent alkylation catalyst regeneration effluent recycle | |
US1784165A (en) | Method of producing borneol and limonene | |
KR0127863B1 (en) | Process for diisobutene with high purity | |
WO2015137422A1 (en) | Olefin oligomerization catalyst, and method for manufacturing olefin dimer |