CN106497595A - A kind of method and system for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil - Google Patents
A kind of method and system for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil Download PDFInfo
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- CN106497595A CN106497595A CN201710030186.9A CN201710030186A CN106497595A CN 106497595 A CN106497595 A CN 106497595A CN 201710030186 A CN201710030186 A CN 201710030186A CN 106497595 A CN106497595 A CN 106497595A
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- Prior art keywords
- petroleum
- methanol
- circulating air
- product
- lighter hydrocarbons
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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
- 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
- C10G3/00—Production of liquid hydrocarbon mixtures from oxygen-containing organic materials, e.g. fatty oils, fatty acids
- C10G3/42—Catalytic treatment
-
- 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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/04—Diesel oil
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
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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
Material benzenemethanol, Petroleum and lighter hydrocarbons, circulating air are respectively fed to methanol booster, Petroleum booster and recycle compressor and are boosted by a kind of method and system for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil；Then methanol, Petroleum and lighter hydrocarbons deliver to preheater, evaporating kettle vaporization, and circulating air enters superheater after circulating gas heater heating together with the methanol after vaporization, Petroleum, lighter hydrocarbons；The output object for entering catalytic reactor is cooled down by superheater, product after cooling is partly into evaporating kettle and preheater is further cooled down, another part enters circulating gas heater cooling, two parts product mixing after cooling after subcooler cooling enters gas, oil, water three-phase separator again and separates, the circulating air for obtaining enters recycle compressor circulation, the oil phase for obtaining enters stabilizer, respectively obtains LPG products and mixing hydrocarbon product after separating；Mix hydrocarbon product through the isolated light hydrocarbon product of Cutting Tap and circulate Petroleum booster processed and utilized and diesel product.
Description
Technical field
The present invention relates to a kind of methanol blends the method and system of Petroleum hydrocarbon, more particularly to stone brain is blended using methanol
Oil and circulating air realize that in the presence of catalyst the method and system of lightweight low-coagulation diesel oil processed, the present invention extend suitable for methanol
Industrial chain, improves methanol economic worth.
Background technology
At present, with the development of Chinese national economy, the requirement that atmospheric haze is administered, national product oil upgrade to five mark of state
Standard, the demand to lightweight low-coagulation diesel oil are increasing.
In order to meet market demand, realize that the high value of refinery's by-product naphtha resource is utilized, improve methanol and enterprise of refinery
The economy of industry, the present invention provides a kind of methanol blending Petroleum and circulating air realize producing lightweight in the presence of catalyst low
The method of coagulation diesel oil.
Content of the invention
The technical problem to be solved is：Methanol, Petroleum and lighter hydrocarbons are raw material, in the presence of catalyst,
Catalytic reforming reduces heavy hydrocarbons content, increases lightweight hydrocarbon content, then obtains diesel oil by folding reaction, improves methanol lightweight low solidifying
The selectivity of diesel oil, improves the economy of methanol diesel device.
The present invention takes following technical proposal to solve above-mentioned technical problem：
A kind of method for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil, it is characterised in that comprise the steps：
A. material benzenemethanol, Petroleum and lighter hydrocarbons, circulating air are respectively fed to methanol booster, Petroleum booster and circulation pressure
Contracting machine is boosted；
B. the methanol and Petroleum after boosting delivers to preheater preheating, evaporating kettle vaporization；
C. the circulating air after boosting enters circulating gas heater heating, the circulating air after heating and the methanol after vaporization, Petroleum
Superheater is entered with lighter hydrocarbons overheated；
D. the catalytic reactor that the methanol, Petroleum, lighter hydrocarbons and circulating air after overheated is entered equipped with molecular sieve catalyst is urged
Change reaction, portion adds the circulating air Quench after boosting in the reactor, the catalytic reactor must controlling reaction temperature, pressure
And mass space velocity；
E, the output object of the catalytic reactor are cooled down by superheater, and the product after cooling is partly into evaporating kettle and preheater
Further cool down, another part enters circulating gas heater cooling, two parts product after cooling is mixed again through supercool
But enter gas, oil, water three-phase separator to separate after device is further cooled down, isolated circulating air enters recycle compressor and follows
Ring, arranges outside fraction；The oil phase for obtaining enters stabilizer, respectively obtains LPG products and mixing hydrocarbon product through stabilizer after separating；
Arrange outside the water phase for obtaining；
F, hydrocarbon mixture are through the isolated light hydrocarbon product of Cutting Tap and diesel product；
G, light hydrocarbon product are recycled to Petroleum booster and recycle；
Hydrocarbon device processed described in step A is methanol hydrocarbon device.
The content of the step A methanol is：90～99.9%, its boost after pressure be 2.0～2.5 Mpa, Petroleum with light
Hydrocarbon its boost after pressure for 2.0～2.5 MPa, methanol and Petroleum ratio be 40%～100%.
Circulating air in described step A, after which boosts, pressure is 2.0～2.5 MPa.
The inlet temperature of step D is 300 DEG C ± 10 DEG C, and the catalytic reactor is equipped with two sections of catalyst, first
Section is equipped with ZSM-5 catalyst, and in catalytic reaction process, controlling reaction temperature is 400～420 DEG C, and pressure is 2.5～3.0 MPa,
Mass space velocity is 20～50 h-1, the modified γ-Al of Ni-Sn are housed in second segment2O3Catalyst, controls in catalytic reaction process
Reaction temperature is 200～220 DEG C, and pressure is 2.5～3.0 MPa, and mass space velocity is 0.9～1.2 h-1.
The output object of the catalytic reactor in step E enters the cooler and is cooled down, and is cooled to temperature
45℃±5℃.
Circulating air circulating reflux produced by step E is recycled to the recycle compressor, outside superpressure part
Drain into torch burning disposal；The step F light hydrocarbon product is recycled to Petroleum booster recycling.
Methanol booster, for boosting to hydrocarbon device material benzenemethanol processed；
Petroleum booster, for boosting to raw material Petroleum and lighter hydrocarbons；
Recycle compressor, for boosting to the circulating air that raw material hydrocarbon device is discharged；
Preheater, for pre- hot methanol, Petroleum and lighter hydrocarbons；
Evaporating kettle, vaporizes for methanol, Petroleum and lighter hydrocarbons；
Circulating gas heater, for heat cycles gas；
Superheater, for overheated circulating air, methanol, Petroleum and lighter hydrocarbons steam；
Catalytic reactor, built with molecular sieve catalyst, for providing catalytic reaction environment；
Cooler, for carrying out cooling treatment to the catalytic reactor output object；
Gas, oil, water three-phase separator, for separating through the mixture after subcooler cooling treatment；
Stabilizer, for carrying out separating acquisition mixed light-hydrocarbon product to the oil phase product of the gas, oil, water three-phase separator output
With LPG products；
Cutting Tap, obtains lighter hydrocarbons and diesel product for separating hydrocarbon mixture.Inlet temperature is 300 DEG C ± 10 DEG C, the catalysis
Reactor is equipped with two sections of catalyst, and ZSM-5 catalyst is housed in first paragraph, and in catalytic reaction process, controlling reaction temperature is 400
～420 DEG C, pressure is 2.5～3.0 MPa, and mass space velocity is 20～50 h-1；Second segment equipped with the modified γ of Ni-Sn-
Al2O3Catalyst, in catalytic reaction process controlling reaction temperature be 200～220 DEG C, pressure be 2.5～3.0 MPa, mass space velocity
For 0.9～1.2 h-1.
At present, the technology of Petroleum lightweight low-coagulation diesel oil is also blended without methanol, and the inventive method has beneficial as follows
Technique effect：Methanol blending Petroleum lightweight low-coagulation diesel oil is achieved, methanol industry chain is extended, be increased naphtha resource
Value, improve the economy of methanol production enterprise and refinery, have higher economic worth and social benefit.
Description of the drawings
Fig. 1 is the process chart of the method and system that the present invention realizes methanol blending Petroleum lightweight low-coagulation diesel oil.
1 in figure, methanol booster, 2, recycle compressor, 3, preheater, 4, evaporating kettle, 5, circulating gas heater, 6, overheated
Device, 7, catalytic reactor, 8, cooler, 9, gas, oil, water three-phase separator, 10, stabilizer, 11, Petroleum booster, 12, cut
Cut tower.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is to further instruction of the present invention.
As shown in figure 1, the present invention realizes that the system of methanol blending Petroleum lightweight low-coagulation diesel oil includes：Recycle compressor
2nd, methanol booster 1, Petroleum booster 11, preheater 3, evaporating kettle 4, circulating gas heater 5, superheater 6, catalytic reactor
7th, the system that 8 gas of cooler, oil, water three-phase separator 9, stabilizer 10, Cutting Tap 12 are constituted with corresponding pipeline
The catalytic reactor 7 is equipped with two sections of catalyst.ZSM-5 catalyst is housed in first paragraph, is controlled in catalytic reaction process
Reaction temperature is 400～420 DEG C, and pressure is 2.5～3.0 MPa, and mass space velocity is 20～50 h-1.Ni- is housed in second segment
Modified γ-the Al of Sn2O3Catalyst, in catalytic reaction process, controlling reaction temperature is 200～220 DEG C, and pressure is 2.5～3.0
MPa, mass space velocity are 0.9～1.2 h-1.
Based on the above-mentioned system for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil, the present invention realizes methanol blending stone brain
The process of oil lightweight low-coagulation diesel oil processed comprises the steps：
A. material benzenemethanol, Petroleum and lighter hydrocarbons and circulating air are respectively fed to methanol booster 1, Petroleum and lighter hydrocarbons booster
11 and recycle compressor 2 boosted；
B. methanol after boosting, Petroleum and lighter hydrocarbons deliver to that preheater 3 is preheated, evaporating kettle 4 is vaporized；Following after C. boosting
Ring gas enters circulating gas heater 5 and heats, and the circulating air after heating and the methanol after vaporization, Petroleum and lighter hydrocarbons enter superheater
6 is overheated；
D. the catalytic reactor 7 that methanol, Petroleum, lighter hydrocarbons after overheated, circulating air are entered equipped with molecular sieve catalyst is urged
Change reaction, portion adds the circulating air Quench after boosting in the reactor, the catalytic reactor must controlling reaction temperature, pressure
And mass space velocity；
E, the output object of the catalytic reactor 7 are cooled down by superheater 6, and the product after cooling is partly into evaporating kettle 4 and pre-
Hot device 3 is further cooled down, and another part enters circulating gas heater 5 and cools down, and two parts product after cooling is mixed again
Gas, oil, water three-phase separator being entered after further cooling down through subcooler 8 and separating 9, isolated circulating air enters circulation pressure
Contracting machine is circulated, and is arranged outside fraction；The oil phase for obtaining enters stabilizer 10, respectively obtains LPG and hydrocarbon mixture after separating through stabilizer
Product；Arrange outside the water phase for obtaining.
F, hydrocarbon mixture are through 12 isolated light hydrocarbon product of Cutting Tap and diesel product.
G, lighter hydrocarbons are recycled to Petroleum booster recycling.
Described hydrocarbon device processed is methanol hydrocarbon device.
The content of the step A methanol is：90～99.9%, after which boosts, pressure is 2.0～2.5 MPa.Petroleum its rise
After pressure, pressure is 40%～100% for the ratio of 2.0～2.5 MPa, methanol and Petroleum.
Circulating air in described step A, after which boosts, pressure is 2.0～2.5 MPa.
The inlet temperature of step D is 300 DEG C ± 10 DEG C,
The catalytic reactor 7 is equipped with two sections of catalyst.ZSM-5 catalyst is housed in first paragraph, is controlled in catalytic reaction process
Reaction temperature is 400～420 DEG C, and pressure is 2.5～3.0 MPa, and mass space velocity is 20～50 h-1.Ni- is housed in second segment
Modified γ-the Al of Sn2O3Catalyst, in catalytic reaction process, controlling reaction temperature is 200～220 DEG C, and pressure is 2.5～3.0
MPa, mass space velocity are 0.9～1.2 h-1.
The output object of the catalytic reactor 7 in step E enters the cooler 8 and is cooled down, and is cooled to temperature
45 DEG C ± 5 DEG C of degree.
Circulating air circulating reflux produced by step E is recycled to the recycle compressor, outside superpressure part
Drain into torch burning disposal；The step G lighter hydrocarbons are recycled to Petroleum booster recycling.
Embodiment one
According to the requirement of the technological process shown in Fig. 1,100 kg/h of methanol flow is controlled, methanol is constituted:99.9%;Control stone brain
100 kg/h of oily flow.
300 kg/h circulating air of circulating air flow is constituted:H210% CH460% C2H410% C2H620%
7 first paragraph of reactor is in mass space velocity 25h-1, 410～420 DEG C of temperature, 2.8 MPa of pressure；Second segment is in mass space velocity
1.1h-1, 200～210 DEG C of temperature, under the process conditions of 2.6 MPa of pressure；Reaction result is as follows:
12 isolated lightweight low-coagulation diesel oil product of Cutting Tap, reaches five -35 diesel quality mark of state through analyzing lightweight low-coagulation diesel oil
Accurate.
Embodiment two
According to the requirement of the technological process shown in Fig. 1,200 kg/h of methanol flow is controlled, methanol is constituted:99.9%;Control stone brain
300 kg/h of oily flow.
Circulating air flow 500kg/h circulating air is constituted:H210% CH460% C2H410% C2H620%
7 first paragraph of reactor is in mass space velocity 25h-1, 400～410 DEG C of temperature, 3.0 MPa of pressure；Second segment is in mass space velocity
1.0h-1, 210～220 DEG C of temperature, under the process conditions of 2.9 MPa of pressure；Reaction result is as follows:
12 isolated lightweight low-coagulation diesel oil product of Cutting Tap, reaches five -35 diesel quality mark of state through analyzing lightweight low-coagulation diesel oil
Accurate.
Embodiment three
According to the requirement of the technological process shown in Fig. 1,100 kg/h of methanol flow is controlled, methanol is constituted:95.4%, control stone brain
80 kg/h of oily flow.
Circulating air flow 320kg/h circulating air is constituted:H2 10% CH4 60% C2H4 10% C2H6 20%
7 first paragraph of reactor is in mass space velocity 40h-1, 400～410 DEG C of temperature, 2.5 MPa of pressure；, second segment is in mass space velocity
0.9h-1, 215～225 DEG C of temperature, under the process conditions of 2.4 MPa of pressure；Reaction result is as follows:
12 isolated lightweight low-coagulation diesel oil product of Cutting Tap, reaches five -35 diesel quality mark of state through analyzing lightweight low-coagulation diesel oil
Accurate.
Claims (9)
1. a kind of realize methanol blend Petroleum lightweight low-coagulation diesel oil method, it is characterised in that comprise the steps：
A. material benzenemethanol, Petroleum and lighter hydrocarbons, circulating air are respectively fed to methanol booster（1）, Petroleum booster（11）With
Recycle compressor（2）Boosted；
B. the methanol and Petroleum after boosting delivers to preheater（3）Preheating, evaporating kettle（4）Vaporization；
C. the circulating air after boosting enters circulating gas heater（5）Methanol, stone brain after heating, the circulating air after heating and vaporization
Oil and lighter hydrocarbons enter superheater（6）Overheated；
D. the methanol, Petroleum, lighter hydrocarbons and circulating air after overheated enters the catalytic reactor equipped with molecular sieve catalyst（7）Enter
Row catalytic reaction, the circulating air Quench after portion's addition is boosted in the reactor, the necessary controlling reaction temperature of the catalytic reactor,
Pressure and mass space velocity；
E, the catalytic reactor（7）Output object by superheater（6）Cooling, the product after cooling are partly into evaporating kettle
（4）And preheater（3）Further cool down, another part enters circulating gas heater（5）Cooling, two parts product after cooling are mixed
It is combined again through subcooler（8）Gas, oil, water three-phase separator is entered after further cooling down（9）Separate, isolated follows
Ring gas enters recycle compressor circulation, arranges outside fraction；The oil phase for obtaining enters stabilizer（10）, after separating through stabilizer respectively
Obtain LPG products and mixing hydrocarbon product；Arrange outside the water phase for obtaining；
F, hydrocarbon mixture are through Cutting Tap（12）Isolated light hydrocarbon product and diesel product；
G, light hydrocarbon product are recycled to Petroleum booster and recycle.
2. a kind of method for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil according to claim 1, its feature exists
In：Hydrocarbon device processed described in step A is methanol hydrocarbon device.
3. a kind of method for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil according to claim 1, its feature exists
In：The content of the step A methanol is：90～99.9%, after which boosts, pressure is 2.0～2.5 MPa；Petroleum its boost after
Pressure is 40%～100% for the ratio of 2.0～2.5 MPa, methanol and Petroleum.
4. a kind of method for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil according to claim 1, its feature exists
In：Circulating air in described step A, after which boosts, pressure is 2.0～2.5 MPa.
5. a kind of method for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil according to claim 1, its feature exists
In：The inlet temperature of step D is 300 DEG C ± 10 DEG C, the catalytic reactor（7）Two sections of catalyst is housed；In first paragraph
Be equipped with ZSM-5 catalyst, in catalytic reaction process controlling reaction temperature be 400～420 DEG C, pressure be 2.5～3.0 MPa, matter
Amount air speed is 20～50 h-1, the modified γ-Al of Ni-Sn are housed in second segment2O3Catalyst, controls in catalytic reaction process anti-
Answer temperature for 200～220 DEG C, pressure is 2.5～3.0 MPa, and mass space velocity is 0.9～1.2 h-1.
6. a kind of method for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil according to claim 1, its feature exists
In：The output object of the catalytic reactor (7) in step E enters the cooler（8）Cooled down, be cooled to temperature
45℃±5℃.
7. a kind of method for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil according to claim 1, its feature exists
In：Circulating air produced by step E cycles back to the recycle compressor and is recycled, and superpressure drains into torch outside part
Burning disposal；The step G lighter hydrocarbons are recycled to Petroleum booster recycling.
8. a kind of realize methanol blend Petroleum lightweight low-coagulation diesel oil system, it is characterised in that include：
Methanol booster (1), for boosting to hydrocarbon device material benzenemethanol processed；
Petroleum booster（11）, for boosting to raw material Petroleum and lighter hydrocarbons；
Recycle compressor (2), for boosting to the circulating air that hydrocarbon device processed is discharged；
Preheater（3）, for pre- hot methanol, Petroleum and lighter hydrocarbons；
Evaporating kettle（4）, vaporize for methanol, Petroleum and lighter hydrocarbons；
Circulating gas heater（5）, for heat cycles gas；
Superheater（6）, for overheated circulating air, methanol, Petroleum and lighter hydrocarbons steam；
Catalytic reactor（7）, built with molecular sieve catalyst, for providing catalytic reaction environment；
Cooler (8), for carrying out cooling treatment to the catalytic reactor (7) output object；
Gas, oil, water three-phase separator（9）, for separating through the mixture after subcooler (8) cooling treatment；
Stabilizer (10), for carrying out separately being mixed to the oil phase product of the gas, oil, water three-phase separator (9) output
Light hydrocarbon product and LPG products；
Cutting Tap（12）, lighter hydrocarbons and diesel product is obtained for separating hydrocarbon mixture.
9. a kind of system for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil according to claim 8, its feature exists
In：Inlet temperature is 300 DEG C ± 10 DEG C, the catalytic reactor（7）Equipped with two sections of catalyst, urge equipped with ZSM-5 in first paragraph
Agent, in catalytic reaction process, controlling reaction temperature is 400～420 DEG C, and pressure is 2.5～3.0 MPa, and mass space velocity is 20
～50 h-1, the modified γ-Al of Ni-Sn are housed in second segment2O3Catalyst, in catalytic reaction process, controlling reaction temperature is 200
～220 DEG C, pressure is 2.5～3.0 MPa, and mass space velocity is 0.9～1.2 h-1.
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| CN201710030186.9A CN106497595A (en) | 2017-01-17 | 2017-01-17 | A kind of method and system for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil |
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| CN201710030186.9A CN106497595A (en) | 2017-01-17 | 2017-01-17 | A kind of method and system for realizing that methanol blends Petroleum lightweight low-coagulation diesel oil |
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ID=58345266
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| CN102492465A (en) * | 2011-11-29 | 2012-06-13 | 中国科学院大连化学物理研究所 | Method for producing vehicle fuel from low carbon hydrocarbon rich in alkene and oxygen-containing compound |
| CN102666800A (en) * | 2009-12-18 | 2012-09-12 | 埃克森美孚研究工程公司 | Process and system to convert olefins to diesel and other distillates |
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2017
- 2017-01-17 CN CN201710030186.9A patent/CN106497595A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1442467A (en) * | 2002-03-01 | 2003-09-17 | 中国石油天然气股份有限公司 | Method of polymerization production of low freezing diesel oil by olefin containing gasoline and catalyst therefor |
| US20060167118A1 (en) * | 2003-12-23 | 2006-07-27 | Tijm Peter J A | Modification of a methanol plant for converting natural gas to liquid hydrocarbons |
| RU2395560C2 (en) * | 2008-07-30 | 2010-07-27 | Закрытое Акционерное Общество "Сибирская Технологическая Компания "Цеосит" | Method of processing oil and gas condensate |
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Application publication date: 20170315 |