CN1356373A - Emulsified feeding method for heavy oil catalytic cracking - Google Patents
Emulsified feeding method for heavy oil catalytic cracking Download PDFInfo
- Publication number
- CN1356373A CN1356373A CN 01136972 CN01136972A CN1356373A CN 1356373 A CN1356373 A CN 1356373A CN 01136972 CN01136972 CN 01136972 CN 01136972 A CN01136972 A CN 01136972A CN 1356373 A CN1356373 A CN 1356373A
- Authority
- CN
- China
- Prior art keywords
- catalytic cracking
- oil
- stock
- heavy oil
- emulsifying
- 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
Links
- 239000000295 fuel oil Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004523 catalytic cracking Methods 0.000 title claims abstract description 11
- 239000003921 oil Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000005516 engineering process Methods 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000005422 blasting Methods 0.000 claims abstract description 6
- 239000003054 catalyst Substances 0.000 claims abstract description 5
- 230000000704 physical effect Effects 0.000 claims abstract description 3
- 238000004231 fluid catalytic cracking Methods 0.000 claims description 19
- 238000004945 emulsification Methods 0.000 claims description 10
- 239000013543 active substance Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000009834 vaporization Methods 0.000 claims description 3
- 230000008016 vaporization Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 239000012875 nonionic emulsifier Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 238000000889 atomisation Methods 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 3
- 230000001804 emulsifying effect Effects 0.000 abstract 2
- 239000007764 o/w emulsion Substances 0.000 description 6
- 239000003995 emulsifying agent Substances 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 239000000571 coke Substances 0.000 description 4
- 230000009466 transformation Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002010 green coke Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The emulsifying feeding method for catalytic cracking of heavy oil adopts unique secondary blasting atomizing technology to raise atomizing effect and greatly improve the contact between material and catalyst, and the technology changes the physical property of catalytically cracked material oil before entering the riser reactor through emulsifying mode to make it contact with high temperature catalyst fully and produce secondary blasting atomization, so as to reach the aims of raising reaction depth, improving product distribution and raising product yield.
Description
The present invention relates to a kind of emulsifying-type material feeding method that is used for heavy oil fluid catalytic cracking, it is the improvement that belongs to heavy oil fluid catalytic cracking fed technology in the Petroleum Processing Technology field.This technology mainly is to change the physical properties of catalytically cracked stock before entering riser reactor by the emulsive mode, so that it fully contacts with high temperature catalyst in entering riser reactor, and produce the secondary blasting atomizing, improve reaction depth to reach, improve the purpose that product distributes and improves the purpose product yield.
At present, in refining of petroleum industry, the heavy oil fluid catalytic cracking technology is to improve product yield and improve the important means that product distributes.And the charging of heavy oil fluid catalytic cracking mostly is full-bodied heavy oil, and in order to reduce charging viscosity, heavy oil needs to enter riser tube under comparatively high temps, but heavy oil heat cracking reaction easily takes place and blocking pipeline and nozzle under the high temperature; The low temperature charging causes atomization badness again because of material viscosity is high.In order to improve the charging atomizing effect of heavy oil fluid catalytic cracking, in recent years, successively developed various heavy oil fluid catalytic cracking high-efficient atomizing nozzle.About fortifying catalytic cracking technology, be in catalytically cracked material, to add the tensio-active agent that is complementary with it, USSR (Union of Soviet Socialist Republics) has big quantity research, shows and can obviously improve the catalytic cracking reaction effect.Though the high-efficient atomizing nozzle can improve the atomizing effect of heavy oil, raw material is still most of between 60～120 μ m through droplet dia after the high-efficient atomizing nozzle atomization, is difficult to satisfy the requirement of catalytic cracking.Because raw material skewness on catalyzer can not be given full play to the effect of catalyzer, cause non-purpose product yield such as dry gas and coke to rise product distribution variation.
Purpose of the present invention provides a kind of emulsifying-type material feeding method that is used for heavy oil fluid catalytic cracking with regard to being to avoid above-mentioned the deficiencies in the prior art part.This technology is to start with from the emulsification aspect, adds tensio-active agent and water in catalytically cracked material, fundamentally changes the character of catalytic cracking charging, to improve the contact condition of raw material and catalyzer, improves the transformation efficiency of heavy oil fluid catalytic cracking and improves the product distribution.It is theoretical and fortifying catalytic cracking technology based on " microexplosion ", and employing water-soluble nonionic type emulsifying agent becomes the oil in water emulsion of water-in-oil-type with the heavy oil fluid catalytic cracking feedstock production, then oil in water emulsion is sprayed into riser reactor being lower than 150 ℃.Oil in water emulsion contacts with the pyritous regenerated catalyst by the little oil droplet of water-in-oil that the nozzle primary atomization forms, water is heat absorption vaporization immediately at high temperature, volume sharply expands, produce impacting with high pressure power, moment is hit into the very little fine droplet of diameter (secondary blasting atomizing) with stock oil, so that catalyzer and stock oil produce excellent contact.Thereby the thermally splitting problem of both having avoided the charging of heavy oil fluid catalytic cracking high temperature to cause solved the low temperature charging again and the atomization badness problem that causes, and the adding of tensio-active agent can be improved the way of contact of stock oil and catalyzer.
Below in conjunction with embodiment in detail technical characterstic of the present invention is described in detail.
Implementing in the process of the present invention in reality, is to realize the emulsification of heavy oil fluid catalytic cracking and charging according to following steps:
(1) according to the material oil properties, selects the emulsifying agent that is complementary: be generally the emulsification of water-soluble nonionic type
Agent;
(2) emulsifying agent is mixed with the aqueous solution of the concentration that requires;
(3) fuel oil preheating is to 60-80 ℃;
(4) stock oil and emulsifier solution are sent into emulsor jointly, the preparation oil in water emulsion;
(5) oil in water emulsion for preparing is preheating to 130-150 ℃, sprays into riser reactor by nozzle.
Because a kind of emulsifying-type material feeding method that is used for heavy oil fluid catalytic cracking of the present invention is to adopt unique secondary " explosion " atomization technique, improved atomizing effect, improved contacting of raw material and catalyzer greatly; And heavy oil fluid catalytic cracking emulsification charging is except can improving atomizing effect, reduced the surface tension of residual oil owing to the adding of emulsifying agent, offset the surplus surface energy of supramolecular structure, changed dispersal direction and speed when supramolecular structure contacts with catalyzer; Simultaneously, tensio-active agent and the high molecular competitive adsorption because of having strong adsorptive power again, and make the conductively-closed of a part of green coke thing, also reduced coke yield.Therefore, after the employing emulsification charging, will promote the carrying out of catalytic cracking reaction greatly, improve reaction depth, improve product and distribute, improve the yield of purpose product.
Test-results shows, adopt after the emulsification charging, under identical reaction conditions, the transformation efficiency of normal slag emulsion oil improves about 5 percentage points than normal slag, and dry gas yied improves about 0.8 percentage point, and liquefied gas yield improves about 1.5 percentage points, gasoline yield improves about 2.5 percentage points, diesel yield descends about 1 percentage point, and the heavy oil productive rate descends about 4 percentage points, and coke yield then is more or less the same; Under close transformation efficiency, oil in water emulsion is during as charging, its dry gas and diesel yield are close with normal slag, gasoline yield improves about 2 percentage points, the productive rate of liquefied gas improves about 1 percentage point, and liquid yield improves about 3.5 percentage points, and light oil yield improves about 2.5 percentage points, and the normal slag of heavy oil productivity ratio hangs down about 2.5 percentage points, low about 1 percentage point of the normal slag of the productivity ratio of coke.
The emulsifying-type material feeding method that is used for heavy oil fluid catalytic cracking of the present invention, the heat absorption because emulsified water vaporization heat absorption and low temperature charging heat up can make agent-oil ratio improve, the reaction temperature drop increases, and thermal response reduces, and this technical matters is simple, realize therefore very wide application prospect being arranged easily.Economic balance shows that heavy oil fluid catalytic cracking emulsification charging is compared with conventional charging, can increase substantially the economic benefit of catalytic cracking unit.
Claims (3)
1. emulsifying-type material feeding method that is used for heavy oil fluid catalytic cracking, it is by entering the method in the riser reactor after the raw material employing emulsification to catalytic cracking again, so that it produces the effect of secondary blasting atomizing, it is characterized in that this technology is at first the stock oil of catalytic cracking to be carried out emulsification, promptly in stock oil, add tensio-active agent and a certain amount of water to change the physical properties of stock oil, and then the emulsive catalytically cracked stock is entered reactor by nozzle with atomizing state contact with the pyritous regenerated catalyst, water in the stock oil is heat absorption vaporization immediately at high temperature, volume sharply expands, moment atomizes the stock oil secondary blasting, thereby stock oil is fully contacted with catalyzer.
2. a kind of emulsifying-type material feeding method that is used for heavy oil fluid catalytic cracking according to claim 1 is characterized in that the emulsification to stock oil is to adopt nonionic emulsifier, and catalytically cracked stock is prepared into water-in-oil emulsified at 60～80 ℃.
3. a kind of emulsifying-type material feeding method that is used for heavy oil fluid catalytic cracking according to claim 1 is characterized in that the emulsive catalytically cracked stock is to spray in the riser reactor with atomizing state by nozzle under 150 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01136972 CN1356373A (en) | 2001-12-27 | 2001-12-27 | Emulsified feeding method for heavy oil catalytic cracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01136972 CN1356373A (en) | 2001-12-27 | 2001-12-27 | Emulsified feeding method for heavy oil catalytic cracking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1356373A true CN1356373A (en) | 2002-07-03 |
Family
ID=4674047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01136972 Pending CN1356373A (en) | 2001-12-27 | 2001-12-27 | Emulsified feeding method for heavy oil catalytic cracking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1356373A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102453513A (en) * | 2010-10-22 | 2012-05-16 | 中国石油化工股份有限公司 | Method for reducing content of sulfur oxides in catalytic cracking smoke |
| CN102453514A (en) * | 2010-10-22 | 2012-05-16 | 中国石油化工股份有限公司 | Method for reducing emission of carbon dioxide in catalytic cracking flue gas |
| CN107583481A (en) * | 2016-07-08 | 2018-01-16 | 中国石化工程建设有限公司 | A kind of the mixing and emulsifying method and feed process of fcc raw material oil |
| CN110607189A (en) * | 2018-06-15 | 2019-12-24 | 中国石油化工股份有限公司 | Pretreating agent and pretreating method for heavy oil fluidized processing raw material |
| CN110607188A (en) * | 2018-06-15 | 2019-12-24 | 中国石油化工股份有限公司 | Pretreating agent and pretreating method for heavy oil fluidized processing raw material |
| CN115418248A (en) * | 2022-09-05 | 2022-12-02 | 南京工业大学 | Method and device for producing propylene in rich way by catalytic cracking of heavy oil |
-
2001
- 2001-12-27 CN CN 01136972 patent/CN1356373A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102453513A (en) * | 2010-10-22 | 2012-05-16 | 中国石油化工股份有限公司 | Method for reducing content of sulfur oxides in catalytic cracking smoke |
| CN102453514A (en) * | 2010-10-22 | 2012-05-16 | 中国石油化工股份有限公司 | Method for reducing emission of carbon dioxide in catalytic cracking flue gas |
| CN102453513B (en) * | 2010-10-22 | 2014-03-05 | 中国石油化工股份有限公司 | Method for reducing content of sulfur oxides in catalytic cracking smoke |
| CN102453514B (en) * | 2010-10-22 | 2014-03-05 | 中国石油化工股份有限公司 | Method for reducing emission of carbon dioxide in catalytic cracking flue gas |
| CN107583481A (en) * | 2016-07-08 | 2018-01-16 | 中国石化工程建设有限公司 | A kind of the mixing and emulsifying method and feed process of fcc raw material oil |
| CN107583481B (en) * | 2016-07-08 | 2020-03-03 | 中国石化工程建设有限公司 | Mixed emulsification method and feeding method of catalytic raw oil |
| CN110607189A (en) * | 2018-06-15 | 2019-12-24 | 中国石油化工股份有限公司 | Pretreating agent and pretreating method for heavy oil fluidized processing raw material |
| CN110607188A (en) * | 2018-06-15 | 2019-12-24 | 中国石油化工股份有限公司 | Pretreating agent and pretreating method for heavy oil fluidized processing raw material |
| CN110607189B (en) * | 2018-06-15 | 2021-05-14 | 中国石油化工股份有限公司 | Pretreating agent and pretreating method for heavy oil fluidized processing raw material |
| CN110607188B (en) * | 2018-06-15 | 2021-05-14 | 中国石油化工股份有限公司 | Pretreating agent and pretreating method for heavy oil fluidized processing raw material |
| CN115418248A (en) * | 2022-09-05 | 2022-12-02 | 南京工业大学 | Method and device for producing propylene in rich way by catalytic cracking of heavy oil |
| CN115418248B (en) * | 2022-09-05 | 2024-03-12 | 南京工业大学 | Method and device for producing propylene in rich way through heavy oil catalytic cracking |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110787766B (en) | Tower type reaction device and process for preparing fatty acid butyl ester | |
| JP2003507568A (en) | Superheating atomizing steam by high temperature FCC feedstock | |
| CA2443353C (en) | Apparatus and process for enhanced feed atomization | |
| CN108546560B (en) | Delayed coking process and apparatus | |
| CN1356373A (en) | Emulsified feeding method for heavy oil catalytic cracking | |
| US6916416B2 (en) | Apparatus and process for enhanced feed atomization | |
| AU2002311805A1 (en) | Apparatus and process for enhanced feed atomization | |
| CN1978596A (en) | Heavyoil catalytic cracking and gasoline modifying mutual control method and apparatus | |
| CN2319127Y (en) | Prolonged dual-throat internally mixed pneumatic atomizing nozzle | |
| CN110540862A (en) | method for producing light oil product by catalytic slurry oil high-energy electronic cracking method | |
| CN1345911A (en) | Method for regulating heat balance of catalytic conversion technological reaction-regeneration system | |
| TW546367B (en) | Fluid atomization process | |
| CN202849336U (en) | Catalytic cracking feed nozzle | |
| CN102453514B (en) | Method for reducing emission of carbon dioxide in catalytic cracking flue gas | |
| CN1098330C (en) | Fluidifying and catalytic convertion process of hydrocarbon | |
| CN100409936C (en) | Petroleum hydrocarbon catalytic cracking reactor | |
| CN200978270Y (en) | Heavy-oil feeding atomization nozzle | |
| CN1680515A (en) | Catalytic cracking micro-explosion activator | |
| CN2458508Y (en) | Burning oil jet nozzle of regenerator | |
| Mccarthy et al. | FCC technology upgrades: A commercial example | |
| CN219580513U (en) | Micro-bubble enhanced oil hydrogenation reaction system | |
| CN113563158B (en) | Process for producing ethylene glycol and co-producing methanol from ethylene carbonate | |
| CN104974788B (en) | Catalytic cracking device and catalytic cracking method | |
| CN209584071U (en) | A kind of low polycyclic aromatic hydrocarbon carbon black production device | |
| CN101993713A (en) | Method for controlling upper-middle temperature of catalytic cracking raising pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |