CN106631669A - Light hydrocarbon aromatization by-product utilizing method - Google Patents
Light hydrocarbon aromatization by-product utilizing method Download PDFInfo
- Publication number
- CN106631669A CN106631669A CN201611003151.8A CN201611003151A CN106631669A CN 106631669 A CN106631669 A CN 106631669A CN 201611003151 A CN201611003151 A CN 201611003151A CN 106631669 A CN106631669 A CN 106631669A
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- CN
- China
- Prior art keywords
- carbon
- accessory substance
- raw material
- component
- light
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/11—Purification; Separation; Use of additives by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids
-
- 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
- C07C15/04—Benzene
-
- 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
- C07C15/06—Toluene
-
- 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
- C07C15/067—C8H10 hydrocarbons
- C07C15/08—Xylenes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
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- 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
The invention discloses a light hydrocarbon aromatization by-product utilizing method. According to the method, by-products C3 and C4 components produced in reaction are desulfurized and then serve as raw materials to return to a reaction system for recycle, the product yield is increased, and very good economic benefits are obtained.
Description
Technical field
The present invention relates to a kind of Application way of light-hydrocarbon aromatized accessory substance.
Background technology
Light-hydrocarbon aromatized technique be by C4～C8 components in the presence of catalyst, by aromatization be converted into containing
The light aromatics such as benzene, toluene and dimethylbenzene, while the liquefied gas of by-product heavy aromatics, low olefin-content, dry gas.Generally,
The liquefied gas of by-product greatly reduces the effective rate of utilization of raw material as output of products.
The content of the invention
The present invention is directed to above-mentioned deficiency of the prior art, there is provided a kind of Application way of light-hydrocarbon aromatized accessory substance, should
Method is recycled after desulfurization using the accessory substance carbon three of generation, the component of carbon four is reacted as raw material Returning reacting system, is carried
High product yield, obtains good economic benefit.
Technical scheme is as follows：A kind of Application way of light-hydrocarbon aromatized accessory substance, the method will be reacted and be produced
Accessory substance carbon three, the component of carbon four recycle as raw material Returning reacting system after desulfurization, described accessory substance carbon three,
The component of carbon four using amine absorption wet desulphurization, described accessory substance carbon three, the component of carbon four return liquefaction Jing after wet desulphurization
Gas raw material heat exchange process, enters heating furnace with raw material afterwards.
The present invention is capable of achieving following effect：The liquefied gas of by-product is incorporated to into raw material heat-exchange system after desulfurization, it is heated
Aromatization reactor is entered after stove heat, is recycled, improve raw material effective rate of utilization.
Description of the drawings
Accompanying drawing 1 is a kind of schematic flow sheet of the Application way of light-hydrocarbon aromatized accessory substance.
Coding in accompanying drawing is respectively：1 is to stablize tower top accessory substance C3, C4 component；2 is amine liquid；3 is amine absorption tower；4 are
Heat-exchange system；5 is heating furnace；6 is aromatization reactor.
Specific embodiment
With reference to accompanying drawing, the specific embodiment of the present invention is：
Embodiment 1
As shown in Figure 1, the Application way of a kind of light-hydrocarbon aromatized accessory substance described in the embodiment of the present invention, the method will react
The accessory substance carbon three of generation, the component of carbon four are recycled after desulfurization as raw material Returning reacting system, described accessory substance
Carbon three, the component of carbon four using amine absorption wet desulphurization, described accessory substance carbon three, the component of carbon four are returned Jing after wet desulphurization
Liquefied gas raw material heat exchange process, enters heating furnace with raw material afterwards.Comprise the following steps that：
（1）Accessory substance carbon three, the component of carbon four are isolated into amine absorption unit, remove sulphur therein from column overhead is stablized.
（2）Carbon three, the component of carbon four after desulfurization is incorporated to raw material heat-exchange system, utilizes into aromatization system circulation.
Claims (3)
1. a kind of Application way of light-hydrocarbon aromatized accessory substance, the method will react accessory substance carbon three, component Jing of carbon four for producing
Cross after desulfurization and recycled as raw material Returning reacting system.
2. a kind of as claimed in claim 1 Application way of light-hydrocarbon aromatized accessory substance, it is characterised in that described accessory substance
Carbon three, the component of carbon four adopt wet desulphurization.
3. a kind of as claimed in claim 1 Application way of light-hydrocarbon aromatized accessory substance, it is characterised in that described accessory substance
Carbon three, the component of carbon four return liquefied gas raw material heat exchange process Jing after desulfurization, enter heating furnace with raw material afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611003151.8A CN106631669A (en) | 2016-11-15 | 2016-11-15 | Light hydrocarbon aromatization by-product utilizing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611003151.8A CN106631669A (en) | 2016-11-15 | 2016-11-15 | Light hydrocarbon aromatization by-product utilizing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106631669A true CN106631669A (en) | 2017-05-10 |
Family
ID=58806562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611003151.8A Pending CN106631669A (en) | 2016-11-15 | 2016-11-15 | Light hydrocarbon aromatization by-product utilizing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106631669A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102757832A (en) * | 2012-07-31 | 2012-10-31 | 宁波中一石化科技有限公司 | Device and method for removing hydrogen sulfide in liquefied petroleum gas |
| CN102899084A (en) * | 2011-07-25 | 2013-01-30 | 中国石油天然气股份有限公司 | Method for co-production of pyrolysis raw material for ethylene through C4 hydrocarbon aromatization |
| CN103509600A (en) * | 2012-06-21 | 2014-01-15 | 中国石油天然气股份有限公司 | Method for producing high octane number gasoline blending component through mixing C4 hydrocarbon aromatization |
| CN103820149A (en) * | 2012-11-16 | 2014-05-28 | 中国石油天然气股份有限公司 | Method for reducing sulfur content in liquefied gas |
| CN104593070A (en) * | 2015-01-30 | 2015-05-06 | 宁波中一石化科技股份有限公司 | Refinery plant liquefied gas desulphurization device and refinery plant liquefied gas desulphurization method |
-
2016
- 2016-11-15 CN CN201611003151.8A patent/CN106631669A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899084A (en) * | 2011-07-25 | 2013-01-30 | 中国石油天然气股份有限公司 | Method for co-production of pyrolysis raw material for ethylene through C4 hydrocarbon aromatization |
| CN103509600A (en) * | 2012-06-21 | 2014-01-15 | 中国石油天然气股份有限公司 | Method for producing high octane number gasoline blending component through mixing C4 hydrocarbon aromatization |
| CN102757832A (en) * | 2012-07-31 | 2012-10-31 | 宁波中一石化科技有限公司 | Device and method for removing hydrogen sulfide in liquefied petroleum gas |
| CN103820149A (en) * | 2012-11-16 | 2014-05-28 | 中国石油天然气股份有限公司 | Method for reducing sulfur content in liquefied gas |
| CN104593070A (en) * | 2015-01-30 | 2015-05-06 | 宁波中一石化科技股份有限公司 | Refinery plant liquefied gas desulphurization device and refinery plant liquefied gas desulphurization method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |