CN107699300A - A kind of cracking of ethylene chilling tempering oil - Google Patents
A kind of cracking of ethylene chilling tempering oil Download PDFInfo
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- CN107699300A CN107699300A CN201710762027.8A CN201710762027A CN107699300A CN 107699300 A CN107699300 A CN 107699300A CN 201710762027 A CN201710762027 A CN 201710762027A CN 107699300 A CN107699300 A CN 107699300A
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- oil
- tapped
- ethylene
- subtracts
- cracking
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/04—Liquid carbonaceous fuels essentially based on blends of hydrocarbons
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- 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 kind of cracking of ethylene chilling tempering oil, and it includes the component of following mass percent：The tapped oil that subtracts two or the tapped oil that subtracts three：55~100%, the high aromatic component of coking：0~45%.The chilling tempering oil is reconciled and formed with the tapped oil that subtracts two, the tapped oil that subtracts three and the high aromatic component of coking, and arene content is high, cost is low, and tempering oil effect more can be effectively played than pyrolysis gas oil.
Description
Technical field
The present invention relates to a kind of cracking of ethylene chilling tempering oil.
Background technology
The quenching oil column of ethylene unit is between cracking process and compression section, and the quality that it runs is to whole device
Even running has a major impact.It is tower reactor of the cracking gas after quenching oil column cooling fractionation in the quench oil during chilling has oil system
Heavy constituent cut, boiling range scope at 220~500 DEG C, rich in largely easily polymerize unsaturated aromatic hydrocarbon, phenylethylene, indene and
Aliphatic alkadienes and cyclenes hydrocarbon compound.Quench oil during recycling with high-temperature split product instantaneous touch,
Condensation, the macromolecular substances such as coking reaction, production colloid, asphalitine easily occur, so that chilling oil viscosity and flow resistance
It is continuously increased, causes heat transfer property to reduce, pumping difficulties, difficulty is brought to follow-up separation equipment operation, while easily cause and set
It is standby to block, device normal operation is influenceed, therefore chilling oil viscosity is always one of technological parameter that ethylene unit strictly controls.
The one of which method for reducing chilling oil viscosity at present is that pyrolysis gas oil is added in quench oil, from gasoline splitter
Side take-off pyrolysis gas oil, gasoline splitter tower reactor is directly injected into by pump.Because pyrolysis gas oil cut is light, viscosity is low, its
With quench oil there is good miscibility, therefore generally use the method reduces the viscosity of quench oil.
Pyrolysis gas oil is supplemented in the cyclic process of quench oil, reduces subject matter existing for the method for quench oil low viscosity
It is：
1. pyrolysis gas oil is blended into gasoline splitter tower reactor, because bottom temperature is high, part pyrolysis gas oil vaporization is had, separately
It is a part of then enter in quench oil.Pyrolysis gas oil is entered in quench oil, can play a part of reducing viscosity.Incorporation cracking bavin
Oil can increase its internal circulating load in gasoline splitter, increase gas phase load in the middle part of gasoline splitter, correspondingly reduce gasoline point
The treating capacity of tower is evaporated, this is unfavorable for gasoline splitter originally limited in one's ability；
2. the components such as styrene, naphthalene, indenes containing more than 50% easy polymerization in pyrolysis gas oil, when they are with quench oil
During circulation, it may occur that polymerisation, and accumulate on gasoline splitter column plate or filler, influence the mass transfer and biography of column plate and filler
Thermal effect.
The content of the invention
It is an object of the invention to provide a kind of cracking of ethylene chilling tempering oil, the chilling tempering oil with the tapped oil that subtracts two, subtract
Three tapped oils aromatic component high with coking, which reconciles, to be formed, and arene content is high, cost is low, and tune more can be effectively played than pyrolysis gas oil
Matter oil effect.
The purpose of the present invention is realized by following technical measures：A kind of cracking of ethylene chilling tempering oil, it includes
The component of following mass percent：
The tapped oil that subtracts two or the tapped oil that subtracts three：55~100%
The high aromatic component of coking：0~45%.
The tapped oil that subtracts two and the tapped oil that subtracts three are the accessory substances that the old three sets furfural extraction units of lubricating oil produce, aromatic hydrocarbons
Content more than 80%, it is the main component of chilling tempering oil.
The high aromatic component of coking is the intermediate species that oil plant delayed coking unit is produced, and arene content is high,
Boiling range is 180 DEG C~350 DEG C, for the tapped oil that subtracts two, subtracting three, tapped oil is diluted, reduce viscosity and the solidification of quench oil
Point, reduce freezing point the purpose of be convenience in transport.
The present invention has advantages below compared with prior art：
The present invention using the accessory substance of the lubricating oil old three sets furfural extraction units production tapped oil that subtracts two with subtract three and take out
It is fuel-displaced to be rich in aromatic hydrocarbons, arene content more than 80%, the composition contained in its aromatic hydrocarbons contained, resin and asphalt and quench oil
Property is similar, has good compatibility with quench oil.What can effectively be mixed with quench oil when in use plays what viscosity reduction acted on
Active ingredient is more, and viscosity reducing effect becomes apparent from；Cost is low, and tempering oil effect more can be effectively played than pyrolysis gas oil.
Embodiment
Embodiment 1
Successively by 64 tons of tapped oils that subtract two and the high aromatic component pump of 16 tons of coking into 100 tons of Mixer pot, heat temperature raising
To 50 DEG C, stirring is started, charge of oil tank car, send ethylene cracker after stirring.
Embodiment 2
Successively by 44.8 tons of tapped oils that subtract three and the high aromatic component pump of 35.2 tons of coking into 100 tons of Mixer pot, heating
50 DEG C are warming up to, starts stirring, charge of oil tank car, send ethylene cracker after stirring.
Embodiment 3
Successively by 44 tons of tapped oils that subtract three and the high aromatic component pump of 36 tons of coking into 100 tons of Mixer pot, heat temperature raising
To 50 DEG C, stirring is started, charge of oil tank car, send ethylene cracker after stirring.
Embodiment 4
Successively by 56 tons of tapped oils that subtract two and the high aromatic component pump of 24 tons of coking into 100 tons of Mixer pot, heat temperature raising
To 50 DEG C, stirring is started, charge of oil tank car, send ethylene cracker after stirring.
Embodiment 5
Successively by 60 tons of tapped oils that subtract two and the high aromatic component pump of 20 tons of coking into 100 tons of Mixer pot, heat temperature raising
To 50 DEG C, stirring is started, charge of oil tank car, send ethylene cracker after stirring.
The present invention can be summarized with others without prejudice to the concrete form of the spirit or essential characteristics of the present invention.The present invention's
Above-described embodiment can only all be considered the description of the invention rather than limitation, and every substantial technological according to the present invention is to the above
Any subtle modifications, equivalent variations and modifications that embodiment is made, are belonged in the range of technical solution of the present invention.
Claims (2)
1. a kind of cracking of ethylene chilling tempering oil, it is characterized in that, it includes the component of following mass percent：
The tapped oil that subtracts two or the tapped oil that subtracts three：55~100%
The high aromatic component of coking：0~45%.
2. cracking of ethylene chilling tempering oil according to claim 1, it is characterized in that, the high aromatic component of coking is oil refining
The intermediate species that factory's delayed coking unit is produced, arene content is high, and boiling range is 180 DEG C~350 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710762027.8A CN107699300A (en) | 2017-08-30 | 2017-08-30 | A kind of cracking of ethylene chilling tempering oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710762027.8A CN107699300A (en) | 2017-08-30 | 2017-08-30 | A kind of cracking of ethylene chilling tempering oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107699300A true CN107699300A (en) | 2018-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710762027.8A Pending CN107699300A (en) | 2017-08-30 | 2017-08-30 | A kind of cracking of ethylene chilling tempering oil |
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| Country | Link |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408925A (en) * | 2011-10-08 | 2012-04-11 | 中国石油化工股份有限公司 | High aromatic low-viscosity quenching and tempering oil for ethylene device |
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2017
- 2017-08-30 CN CN201710762027.8A patent/CN107699300A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408925A (en) * | 2011-10-08 | 2012-04-11 | 中国石油化工股份有限公司 | High aromatic low-viscosity quenching and tempering oil for ethylene device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180216 |