CN104498089A - Method for producing diesel by hydrofining of hydrocracking diesel - Google Patents
Method for producing diesel by hydrofining of hydrocracking diesel Download PDFInfo
- Publication number
- CN104498089A CN104498089A CN201410809691.XA CN201410809691A CN104498089A CN 104498089 A CN104498089 A CN 104498089A CN 201410809691 A CN201410809691 A CN 201410809691A CN 104498089 A CN104498089 A CN 104498089A
- Authority
- CN
- China
- Prior art keywords
- diesel
- hydrocracking
- oil
- hydrofining
- diesel oil
- 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
Classifications
-
- 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
- C10G67/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only
- C10G67/02—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1037—Hydrocarbon fractions
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a method for producing diesel by hydrofining of hydrocracking diesel and relates to a method for producing diesel. The method is used for solving the problems of heavier density and low lower flashing point of the diesel produced by the existing hydrocracking, namely, diesel hydrofining technology. The method for producing diesel by hydrofining of hydrocracking diesel comprises the steps of directly pumping hot high-component oil into a cracking reaction system, hydrocracking and carrying out fractional distillation and extraction to obtain diesel. The average density of the diesel product obtained by the method is 0.914*10<3>kg/m<3>, the flashing point is 41-43 DEG C and the yield of the diesel is slightly increased. By the method disclosed by the invention, the quality of the diesel product is further improved.
Description
Technical field
The present invention relates to a kind of method of producing diesel oil.
Background technology
Current hydrocracking---diesel oil hydrofining technology is for energy-optimised consideration, adopt hot high score flow process: reaction product, after heat exchange, enters hot high score, after the decompression of hot high score oil, enter low point of heat, hot high score gas is cooled by air cooler and enters cold high score, carries out gas, oil, water three phase separation.Cold high score gas (recycle hydrogen) enters circulating hydrogen compressor entrance and recycles.Enter cold low point after the decompression of cold high score oil, after cold low point of gas sweetening, go out device; Cold low point oil through with the heat exchange of hot high score gas after enter fractionating system.Heat low point of gas enters fractionating system through voltage-controlled valve, and the cold low point of oil that heat low point of oil converges through heat exchange enters fractionating system.
It is 0.918 × 10 that this technique produces diesel fuel oil mean density
3kg/m
3, flash-point is 32 ~ 34 DEG C.
Summary of the invention
The present invention is to solve existing hydrocracking---the diesel oil density that diesel oil hydrofining technology is produced lays particular stress on, the problem that flash-point is on the low side, and a kind of hydrocracking diesel oil hydrofining provided produces the method for diesel oil.
In the method for hydrocracking diesel oil hydrofining production diesel oil of the present invention, hot high score oil is directly pumped into cracking reaction system and carry out hydrocracking, then diesel oil is extracted in fractionation.
It is 0.914 × 10 that the inventive method obtains diesel fuel oil mean density
3kg/m
3, flash-point is 41 ~ 43 DEG C, and oil product yield slightly improves.The inventive method further improves the quality of oil product.
The inventive method still adopts former cracking catalyst, and its cracking reaction parameter and reaction conditions also need not change, and have workable, and operator's speed-adaptive is fast, work simplification, and equipment is simple, the features such as running cost is low.
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: in the method for present embodiment hydrocracking diesel oil hydrofining production diesel oil, hot high score oil is directly pumped into cracking reaction system and carry out hydrocracking, then diesel oil is extracted in fractionation.
The hot high score oil of present embodiment directly carries out hydrocracking, makes C-C cleavage reaction, further macromolecule hydrocarbon is converted into small molecules hydro carbons, oil product is lightened under the condition of high temperature and high hydrogen dividing potential drop, and light oil yield increases, and flash-point on average improves 10 DEG C.
Divide pressure at high temperature and higher hydrogen, make C-C cleavage reaction, make macromolecule hydrocarbon be converted into small molecules hydro carbons further, oil product is lightened, light oil yield increases, and flash-point on average improves 10 DEG C.
Embodiment two: the difference of present embodiment and embodiment one is: hot high score oil, before pumping into cracking reaction system, first pumps into cracked charge surge tank.Other step and parameter identical with embodiment one.
In present embodiment, the tank Liquid level of cracked charge surge tank is 50% ~ 60%.Hot high score oil stays for some time at cracked charge surge tank, and can ensure that the reaction-ure feeding amount of cracking reaction system is stablized, and guarantees consistent, the steady running of cracking reaction.
Embodiment 1
The present embodiment hydrofining stock oil, after the boosting of hydrofining fresh feed pump, first with hydrotreated product heat exchange, then mixes with from process furnace hot hydrogen out and reaches that refining reaction is temperature required enters refining reaction device.Mixed hydrogen oil flows through refining reaction device from top to down successively, carries out the hydrogenolysis of the non-hydrocarbons such as hydrogenating desulfurization, denitrogenation, deoxidation, make alkene, aromatic hydrogenation saturated under the effect of catalyzer.Be warming up to 260 DEG C from hydrofining reactor reaction product out through interchanger, enter refining hot high score tank; Reaction product carries out gas-oil separation in hot high score tank, gas phase enters refining cold high score tank after heat exchange is cooled to 45 DEG C, then carries out oil, gas, water three phase separation, and gas phase enters follows the recycle of hydrogen machine entrance, liquid phase enters cold low point through decompression, enters fractionating system more afterwards through heat exchange.
Refining hot high score liquid phase is after decompression, and reduce phlegm and internal heat low point of tank on a road, and in low point of heat, carry out gas-oil separation, gas phase directly enters fractionating system through voltage-controlled valve, and cold low point of oil after liquid phase and heat exchange is mixed into fractionating system; Another road directly enters cracking surge tank (approach of the present invention) through decompression valve, through the pressurization of cracked charge pump and crackate heat exchange, then is mixed to cracking reaction feeding temperature with from process furnace hot hydrogen out.Mixed hydrogen oil flows through cracking case from top to down successively.Cracked reaction product enters heat of cracking high score through interchanger heat exchange to 260 DEG C.Crackate carries out gas-oil separation in heat of cracking high score, and gas phase is cooled to 45 DEG C through heat exchange and enters the cold high score of cracking, then carries out oil, gas, water three phase separation, and gas phase enters to be followed hydrogen machine entrance system and carry out recycle.Liquid phase enters cold low point through decompression, then enters fractionating system through heat exchange.In heat of cracking high score, liquid phase enters low point of heat through decompression.In low point of heat, gas phase enters fractionating system through voltage-controlled valve, and after liquid phase and heat exchange, cold low point of oil is mixed into fractionating system.
In the present embodiment, refining temperature in is 292 ± 2 DEG C, and pressure is 13.0 ± 2MPa; Cracking temperature in is 392 ± 2 DEG C, and pressure is 13.0 ± 2MPa.
The diesel oil mean density that the present embodiment extracts after testing is 0.914 × 10
3kg/m
3, flash-point is 41 ~ 43 DEG C.
Claims (2)
1. hydrocracking diesel oil hydrofining produces a method for diesel oil, it is characterized in that in the method for hydrocracking diesel oil hydrofining production diesel oil, hot high score oil directly being pumped into cracking reaction system carries out hydrocracking, then diesel oil is extracted in fractionation.
2. a kind of hydrocracking diesel oil hydrofining according to claim 1 produces the method for diesel oil, it is characterized in that hot high score oil is before pumping into cracking reaction system, first pumps into cracked charge surge tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410809691.XA CN104498089A (en) | 2014-12-23 | 2014-12-23 | Method for producing diesel by hydrofining of hydrocracking diesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410809691.XA CN104498089A (en) | 2014-12-23 | 2014-12-23 | Method for producing diesel by hydrofining of hydrocracking diesel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104498089A true CN104498089A (en) | 2015-04-08 |
Family
ID=52939547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410809691.XA Pending CN104498089A (en) | 2014-12-23 | 2014-12-23 | Method for producing diesel by hydrofining of hydrocracking diesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104498089A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419866A (en) * | 2015-11-03 | 2016-03-23 | 朱广英 | Method for hydro-conversion of hydrocarbon by using thermal high-pressure separation oil pressure pump |
| WO2018095347A1 (en) * | 2016-11-24 | 2018-05-31 | 内蒙古晟源科技有限公司 | Method for producing high-density fuel by blending components of inferior-quality heavy oil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239887A (en) * | 2008-02-01 | 2008-08-13 | 七台河宝泰隆煤化工有限公司 | Technique for coproducing methanol from coke oven gas and fuel products by hydrogenating coal tar prepared from tail gas of methanol preparation |
| CN102311795A (en) * | 2010-06-29 | 2012-01-11 | 中国石油化工股份有限公司 | Hydrogenation method for producing high-octane gasoline components by diesel oil raw material |
| CN103773487A (en) * | 2012-10-25 | 2014-05-07 | 中国石油化工股份有限公司 | Hydrocracking method for catalytic cracking diesel |
-
2014
- 2014-12-23 CN CN201410809691.XA patent/CN104498089A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239887A (en) * | 2008-02-01 | 2008-08-13 | 七台河宝泰隆煤化工有限公司 | Technique for coproducing methanol from coke oven gas and fuel products by hydrogenating coal tar prepared from tail gas of methanol preparation |
| CN102311795A (en) * | 2010-06-29 | 2012-01-11 | 中国石油化工股份有限公司 | Hydrogenation method for producing high-octane gasoline components by diesel oil raw material |
| CN103773487A (en) * | 2012-10-25 | 2014-05-07 | 中国石油化工股份有限公司 | Hydrocracking method for catalytic cracking diesel |
Non-Patent Citations (1)
| Title |
|---|
| 顾洁等: "《油品分析与化学知识问答 第二版》", 31 March 2013 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105419866A (en) * | 2015-11-03 | 2016-03-23 | 朱广英 | Method for hydro-conversion of hydrocarbon by using thermal high-pressure separation oil pressure pump |
| WO2018095347A1 (en) * | 2016-11-24 | 2018-05-31 | 内蒙古晟源科技有限公司 | Method for producing high-density fuel by blending components of inferior-quality heavy oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107177373B (en) | A kind of overcritical residual oil and/or catalytic slurry processing system and processing method | |
| CN104611059A (en) | Method for preparing liquid paraffin, paraffin precursor and lubricant base oil precursor from Fischer-Tropsch synthesis products | |
| CN108998091B (en) | Waste mineral oil regeneration technique | |
| CN104498089A (en) | Method for producing diesel by hydrofining of hydrocracking diesel | |
| CN103923690B (en) | Method for extracting and catalyzing aromatic hydrocarbon in oil slurry | |
| CN108559545B (en) | Residual oil hydrofining process for stopping and starting fractionating tower system and changing cold low fraction oil going direction | |
| CN101790576B (en) | Method for producing feedstocks of high quality lube base oil from coking gas oil | |
| CN105733671A (en) | Method and system for producing modified oil from inferior heavy oil | |
| CN103387844A (en) | Method for separating and catalytically cracking oil slurry | |
| CN103421542A (en) | Diesel hydrogenation process | |
| CN108998092A (en) | The technique of hydrotreating heavy traffic paving asphalt distillate production lube base oil | |
| CN105176579B (en) | Decompression residuum/coal tar lighting and the method and the device thereof that produce heavy traffic paving asphalt | |
| CN101892074A (en) | Heavy oil processing combined process capable of using deasphalted oil efficiently | |
| CN101914388B (en) | Method and system for preparing sealing oil of circulating pump | |
| CN203419880U (en) | Light gasoline, heavy gasoline and light diesel oil separation device | |
| CN103614160B (en) | A kind of Heavy lubricant base oil production system and production method | |
| CN103525459B (en) | Gasoline selective hydrogenation products separating technology | |
| CN113372944B (en) | Production method of basic lubricating oil | |
| CN105733666A (en) | Method for treating catalytic cracking slurry oil | |
| CN106147837B (en) | Heavy oil modifying and viscosity reducing method and application | |
| CN218710200U (en) | Device for producing food additive by using low-freezing-point naphthenic base crude oil distillate | |
| RU2775650C1 (en) | Method for obtaining a component for drilling fluids | |
| CN104388120B (en) | Organic heat carrier recycling process for selective hydrogenation | |
| CN105820837A (en) | System and method for preparing white oil from coal tar hydrogenation product | |
| CN203820723U (en) | Heavy lubricant base oil production system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150408 |
|
| RJ01 | Rejection of invention patent application after publication |