EA199900252A2 - Process for oligomerizing of light olefins - Google Patents
Process for oligomerizing of light olefinsInfo
- Publication number
- EA199900252A2 EA199900252A2 EA199900252A EA199900252A EA199900252A2 EA 199900252 A2 EA199900252 A2 EA 199900252A2 EA 199900252 A EA199900252 A EA 199900252A EA 199900252 A EA199900252 A EA 199900252A EA 199900252 A2 EA199900252 A2 EA 199900252A2
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- stream
- hydrocarbons
- oligomerization
- gasoline
- olefin
- Prior art date
Links
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Изобретение относится к способам олигомеризации олефинсодержащих углеводородных фракций Си/или Св бензиновые углеводороды и включает контакт сырья с катализатором олигомеризации, содержащим цеолит группы пентасилов, в условиях олигомеризации с образованием потока, обогащенного углеводородами C, охлаждение полученного потока продуктов, его разделение в сепараторе и колонне - деэтанизаторе на лёгкие углеводороды C-Cи поток, содержащий углеводороды С, и фракционирование этого потока с получением бензина C, фракции углеводородов Си фракции углеводородов Си смешение части содержащего углеводороды C-Cпарофазного потока из сепаратора и части фракции углеводородов Сс олефинсодержащим сырьём. Использование в качестве рецикла части парофазного потока из сепаратора и части, выделенной из потока продуктов фракции С, позволяет формировать водородсодержащий рецикловый поток, обогащенный изобутаном по сравнению с известными способами олигомеризации олефинсодержащего сырья, что обеспечивает повышение выхода бензина при вовлечении изобутана в реакции алкилирования, а также увеличение содержания изо-олефинов в полученном бензине. В предпочтительном варианте предлагаемого способа олигомеризации объёмное отношение углеводороды: водород в рецикле от 1:0,3 до 1:2. Предлагаемый способ олигомеризации низших олефинов может быть использован в нефтепереработке и нефтехимии, например для получения бензина из пропан-пропиленовой и бутан-бутиленовой фракций каталитического крекинга.The invention relates to methods for oligomerization of olefin-containing hydrocarbon fractions Cu / or S gasoline hydrocarbons and includes contacting the feedstock with an oligomerization catalyst containing pentasil group zeolite under oligomerization conditions to form a stream rich in hydrocarbons C, cooling the resulting product stream, separating it in a separator and a column deethanizer for light hydrocarbons C-C stream containing hydrocarbons C, and fractionation of this stream to produce gasoline C, hydrocarbon fractions C fraction Si and hydrocarbons; Mixing part of the C-C vapor-phase hydrocarbon-containing stream from the separator and part of the hydrocarbon fraction Сс olefin-containing raw material. Using as part of the recycle vapor stream from the separator and the part separated from the product stream of fraction C, allows you to form a hydrogen-containing recycle stream enriched in isobutane compared with the known methods of oligomerization of olefin-containing raw materials, which increases the yield of gasoline with the involvement of isobutane in the alkylation reaction, as well as increase in the content of iso-olefins in the resulting gasoline. In a preferred embodiment of the proposed method of oligomerization, the volume ratio of hydrocarbons: hydrogen in recycle is from 1: 0.3 to 1: 2. The proposed method of oligomerization of lower olefins can be used in oil refining and petrochemistry, for example, to obtain gasoline from propane-propylene and butane-butylene fractions of catalytic cracking.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU98105081/04A RU2135547C1 (en) | 1998-03-31 | 1998-03-31 | Lower olefin oligomerization process |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EA199900252A2 true EA199900252A2 (en) | 1999-12-29 |
| EA199900252A3 EA199900252A3 (en) | 2000-10-30 |
| EA002128B1 EA002128B1 (en) | 2001-12-24 |
Family
ID=20203600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EA199900252A EA002128B1 (en) | 1998-03-31 | 1999-03-29 | Process for oligomerizing of light olefins |
Country Status (2)
| Country | Link |
|---|---|
| EA (1) | EA002128B1 (en) |
| RU (1) | RU2135547C1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2186829C1 (en) * | 2001-08-02 | 2002-08-10 | Фалькевич Генрих Семенович | High anti-knock gasoline production process and apparatus for carrying out the process (versions) |
| RU2698302C1 (en) * | 2017-03-07 | 2019-08-26 | Михайло Барильчук | Plant for processing aliphatic hydrocarbons c2-c12 using zeolite-containing catalysts |
-
1998
- 1998-03-31 RU RU98105081/04A patent/RU2135547C1/en not_active IP Right Cessation
-
1999
- 1999-03-29 EA EA199900252A patent/EA002128B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2135547C1 (en) | 1999-08-27 |
| EA199900252A3 (en) | 2000-10-30 |
| EA002128B1 (en) | 2001-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AM AZ KZ KG MD TJ TM RU |
|
| MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): BY |