CN105482850A - System device for producing needle coke crude oil through catalytic slurry oil - Google Patents
System device for producing needle coke crude oil through catalytic slurry oil Download PDFInfo
- Publication number
- CN105482850A CN105482850A CN201610017504.3A CN201610017504A CN105482850A CN 105482850 A CN105482850 A CN 105482850A CN 201610017504 A CN201610017504 A CN 201610017504A CN 105482850 A CN105482850 A CN 105482850A
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- China
- Prior art keywords
- catalytic slurry
- gas stripping
- oil
- tower
- stripping column
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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
- C10G67/14—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 including at least two different refining steps in the absence of hydrogen
-
- 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
- C10G67/04—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 including solvent extraction as the refining step in the absence of hydrogen
-
- 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
Abstract
The invention belongs to the field of catalytic slurry oil deep processing and particularly relates to a system device for producing needle coke crude oil through catalytic slurry oil. According to the device, a mixer 1, the top of a catalytic slurry oil extraction tower 2, the top of an aromatic-hydrocarbon-rich oil separation tower 4 and the top of an aromatic-alkane-rich oil separation tower 5 are sequentially connected through pipelines. The bottom of the catalytic slurry oil extraction tower 2 is connected with a gas stripping tower A8-1. The bottom of the aromatic-hydrocarbon-rich oil separation tower 4 is directly connected with a gas stripping tower B8-2. The bottom of the aromatic-alkane-rich oil separation tower 5 is connected with a gas stripping tower C8-3. A gas outlet of the gas stripping tower A8-1, a gas outlet of the gas stripping tower B8-2 and a gas outlet of the gas stripping tower C8-3 are sequentially connected and then connected with a condenser 7 and a solvent tank 6, and the bottom of the gas stripping tower B8-2 is connected with a hydrofining reactor 9. The device fully utilizes petroleum resources and turns waste into wealth, the catalytic slurry oil can be utilized at high value, and the produced needle coke crude oil can serve as needle coke raw materials high-additional-value products.
Description
Technical field
The invention belongs to catalytic slurry field of deep, be specifically related to catalytic slurry and produce needle-shape coke raw material oil system device.
Background technology
China's oil resource scarcity, along with the development of national economy, the domestic consumption for petroleum resources continues to increase, according to " domestic and international gas industries developmental research report in 2013 " display of group economy Institute for Research and Technology of CNPC writing, China's oil in 2013 and crude oil Apparent con-sumption reach 4.98 hundred million tons and 4.87 hundred million tons respectively, increase by 1.7% and 2.8% than last year.Family of domestic petroleum processing industry scale above enterprise more than 1200, the disposable working ability of crude oil in China 5.9 hundred million tons, the catalytic cracking unit working ability of wherein having gone into operation reaches 15,000 ten thousand tons, the quantity of catalytic cracking unit byproduct catalytic slurry is increasing, and national catalytic slurry output is about more than 7,000,000 tons/year.
Because catalytic slurry is a kind of arene concentrate, containing 60% condensed-nuclei aromatics, 30% is saturated alkane, and be less than 10% for resin and asphalt, wherein a large amount of aromatic hydrocarbons mostly is 2,6 ring structures (300 ~ 500 DEG C of cuts), narrow molecular weight distribution, aromaticity is large, and system reactivity is low, can obtain anisotropic easy graphited fine fiber structure, be the high quality raw material producing needle coke product.Needle coke is the fine quality greatly developed in carbon material, its outward appearance is silver gray, has the porosu solid of metalluster, its structure has the texture that obviously flows, hole greatly and less and slightly ovalize, particle has larger long-width ratio, move towards just like the texture of threadiness or needle-like, that touches has lubrication sense, is the raw material producing the high-end carbon products such as ultra-high power graphite electrode, extraordinary carbon material, Carbon fiber and carbon fiber composites.According to the difference of raw materials for production, needle coke can be divided into oil system needle coke and coal-based needle coke two kinds.
But catalytically cracked oil is mixed oil fuel by current most refinery, minority refinery using slurry oil as pitch blend component, this does not only make good use of valuable petroleum resources, and in combustion because the existence of residual catalyst easily causes heating furnace fire chew abrasion and coking and cause environmental pollution.Therefore be refinery key issue urgently to be resolved hurrily for effective process of catalytically cracked oil and higher value application.
Summary of the invention
The present situation such as the effective process and the higher value application rate that the present invention is directed to catalytically cracked oil are low, remanufacture technique is loaded down with trivial details, there is provided a kind of production technique simple, have that solvent recuperation flow process is shorter, energy consumption is lower, the catalytic slurry of product yield and the more high advantage of purity produces needle-shape coke raw material oil system device.
The solution of the present invention is by realizing like this: a kind of catalytic slurry produces needle-shape coke raw material oil system device, this device mixing tank 1, catalytic slurry extraction tower 2 top, rich aromatic hydrocarbon oil knockout tower 4 top, rich alkane oil extraction tower 5 top is connected successively by pipeline, the bottom of catalytic slurry extraction tower 2 is connected with gas stripping column A8-1, directly be connected with gas stripping column B8-2 bottom rich aromatic hydrocarbon oil knockout tower 4, be connected with gas stripping column C8-3 bottom rich alkane oil extraction tower 5, gas stripping column A8-1, gas stripping column B8-2, gas stripping column C8-3 pneumatic outlet connects rear and condenser 7 successively, solvent tank 6 connects, be connected with hydrofining reactor 9 bottom gas stripping column B8-2.
As further restriction of the present invention, between described catalytic slurry extraction tower 2 and rich aromatic hydrocarbon oil knockout tower 4 top connect, be also provided with interchanger 3; Preheating mixer B10-2 is also provided with between described rich aromatic hydrocarbon oil knockout tower 4 and rich alkane oil extraction tower 5 top connect.
As further restriction of the present invention, between the bottom of described catalytic slurry extraction tower 2 is connected with gas stripping column A8-1, be also provided with preheating mixer A10-1.
As further restriction of the present invention, between being connected with solvent tank 6 after described gas stripping column A8-1, gas stripping column B8-2, gas stripping column C8-3 connect successively, be also provided with condenser 7.
As further restriction of the present invention, described catalytic slurry extraction tower 2 is catalytic slurry supercritical extraction tower.This extraction tower adopts supercritical fluid extraction fractionation technology.
As further restriction of the present invention, be connected with mixing tank 1 by high-pressure pump bottom described solvent tank 6.
The technical basis that the present invention realizes is: adopt " supercritical fluid extraction fractionation technology " (being called for short SFEF), separation of produced needle-shape coke raw material is carried out to catalytic slurry, namely lighter hydrocarbons solvent dissolubility property is in the supercritical state utilized, catalytic slurry is effectively separated, obtain needle-shape coke raw material oil, enriched saturated hydrocarbon oil and colloid residual oil, needle-shape coke raw material oil generates refining needle-shape coke raw material oil through refining reactions such as hydrogenating desulfurization, denitrogenation, removing heavy-metals.Needle-shape coke raw material oil is wherein the high quality raw material producing high-grade needle coke, and isolate the high quality raw material of enriched saturated hydrocarbon oil as catalytic cracking, colloid residual oil is the high quality raw material of mediation first-class road pitch, has good prospect for sales and the stable market requirement.
The present invention possesses following good result: by enforcement of the present invention, take full advantage of petroleum resources, make a silk purse out of a sow's ear, and makes catalytic slurry be able to higher value application, and the needle-shape coke raw material oil produced is by the refining raw material that can be used as high value added product needle coke.The production technique that the present invention adopts is simple, has that solvent recuperation flow process is shorter, energy consumption is lower, product yield and a more high advantage of purity, will produce very high economy, environment, social benefit.The effect that final realization is good below: 1, the supercritical solvent rate of recovery 97%, reduces process energy consumption 30%; 2, pre-treatment is carried out to raw material, improve the aromaticity of raw material; 3, product yield is respectively needle-shape coke raw material oil 59.5%, enriched saturated hydrocarbon oil 10.5%, colloid residual oil 30%; 4, needle-shape coke raw material oil carbon residue content 4.05%, ash content 0.03%, rich alkane carbon residue content 1.0%, ash oontent 0.03%.
figure of description
Fig. 1. catalytic slurry produces needle-shape coke raw material oil system device.Identify in figure: 1: mixing tank, 2: catalytic slurry extraction tower, 3: interchanger, 4: rich aromatic hydrocarbon oil knockout tower, 5: rich alkane oil extraction tower, 6: solvent tank, 7: condenser, 8-1: gas stripping column A, 8-2: gas stripping column B, 8-3: gas stripping column C, 9: hydrofining reactor, 10-1: preheating mixer A, 10-2: preheating mixer: B.
Embodiment
Describe catalytic slurry of the present invention below in conjunction with embodiment and accompanying drawing and produce needle-shape coke raw material oil system device, these descriptions are not be further limited content of the present invention.
Embodiment 1
As shown in Figure 1, catalytic slurry produces needle-shape coke raw material oil system device, this device mixing tank 1, catalytic slurry extraction tower 2 top, rich aromatic hydrocarbon oil knockout tower 4 top, rich alkane oil extraction tower 5 top is connected successively by pipeline, the bottom of catalytic slurry extraction tower 2 is connected with gas stripping column A8-1, directly be connected with gas stripping column B8-2 bottom rich aromatic hydrocarbon oil knockout tower 4, be connected with gas stripping column C8-3 bottom rich alkane oil extraction tower 5, gas stripping column A8-1, gas stripping column B8-2, gas stripping column C8-3 pneumatic outlet connects rear and condenser 7 successively, solvent tank 6 connects, be connected with hydrofining reactor 9 bottom gas stripping column B8-2.Interchanger 3 is also provided with between described catalytic slurry extraction tower 2 and rich aromatic hydrocarbon oil knockout tower 4 top connect; Preheating mixer B10-2 is also provided with between described rich aromatic hydrocarbon oil knockout tower 4 and rich alkane oil extraction tower 5 top connect.Preheating mixer A10-1 is also provided with between the bottom of described catalytic slurry extraction tower 2 is connected with gas stripping column A8-1.Condenser 7 is also provided with between being connected with solvent tank 6 after described gas stripping column A8-1, gas stripping column B8-2, gas stripping column C8-3 connect successively.Described catalytic slurry extraction tower 2 is catalytic slurry supercritical extraction tower.This extraction tower adopts supercritical fluid extraction fractionation technology.Be connected with mixing tank 1 by high-pressure pump bottom described solvent tank 6.
Application Example 2
With the catalytically cracked oil residue produced after Guangxi factory of large-scale petroleum chemical oil refining refining processed oil for raw material, in use procedure, raw material and the main solvent from solvent tank 6 enter mixing tank 1 and mix, the raw material mixed enters into catalytic slurry extraction tower 2 with the secondary solvent of part from solvent tank 6 and carries out supercritical fluid extraction fractionation, slurry oil gas fraction after catalytic slurry extraction tower 2 processes enters gas stripping column A8-1 by bottom through preheating mixer A10-1, makes liquefaction of gases obtain colloid residual oil at gas stripping column A8-1.Slurry oil part enters rich aromatic hydrocarbon oil separator 4 from top after interchanger 3 processes, carry out rich aromatic hydrocarbons oil separating, the gas obtaining producing after separation enters gas stripping column B8-2 to carry out liquefaction and obtains rich aromatic hydrocarbon oil, and the rich aromatic hydrocarbon oil obtained is sent into hydrofining reactor 9 processing further and obtained refining needle-shape coke raw material oil.Slurry oil part enters rich alkane oil extraction tower 5 after preheating mixer B10-2 process, carries out the extracting of rich alkane oil, and the gas of generation enters gas stripping column C8-3 to carry out liquefaction and obtain rich alkane oil.The solvent that gas stripping column A8-1, gas stripping column B8-2, gas stripping column C8-3 post liquefaction produce is successively by getting back in solvent tank 6 after condenser 7 condensation.
The residue slurry oil after the refining of apparatus of the present invention system is adopted to realize following good effect: 1, the supercritical solvent rate of recovery 97%, reduces process energy consumption 30%; 2, pre-treatment is carried out to raw material, improve the aromaticity of raw material; 3, product yield is respectively needle-shape coke raw material oil 59.5%, enriched saturated hydrocarbon oil 10.5%, colloid residual oil 30%; 4, needle-shape coke raw material oil carbon residue content 4.05%, ash content 0.03%, rich alkane carbon residue content 1.0%, ash oontent 0.03%.
The above embodiment of the present invention scheme is only can not limit the present invention to explanation of the present invention, indicate in claim that present device is formed and mode of connection, and the scope of parameter of the present invention is not pointed out in above-mentioned explanation, therefore, any change in the implication suitable with claims of the present invention and scope, is all considered to be and is included in the scope of claims.
Claims (6)
1. a catalytic slurry produces needle-shape coke raw material oil system device, this device mixing tank (1), catalytic slurry extraction tower (2) top, rich aromatic hydrocarbon oil knockout tower (4) top, rich alkane oil extraction tower (5) top is connected successively by pipeline, it is characterized in that, bottom and the gas stripping column A(8-1 of catalytic slurry extraction tower (2)) be connected, rich aromatic hydrocarbon oil knockout tower (4) bottom directly with gas stripping column B(8-2) be connected, rich alkane oil extraction tower (5) bottom and gas stripping column C(8-3) be connected, gas stripping column A(8-1), gas stripping column B(8-2), gas stripping column C(8-3) pneumatic outlet connect successively after and condenser (7), solvent tank (6) connects, gas stripping column B(8-2) bottom be connected with hydrofining reactor (9).
2. catalytic slurry according to claim 1 produces needle-shape coke raw material oil system device, it is characterized in that, is also provided with interchanger (3) between described catalytic slurry extraction tower (2) and rich aromatic hydrocarbon oil knockout tower (4) top connect; Preheating mixer B(10-2 is also provided with) between described rich aromatic hydrocarbon oil knockout tower (4) and rich alkane oil extraction tower (5) top connect.
3. catalytic slurry according to claim 1 produces needle-shape coke raw material oil system device, it is characterized in that, the bottom of described catalytic slurry extraction tower (2) and gas stripping column A(8-1) be connected between be also provided with preheating mixer A(10-1).
4. catalytic slurry according to claim 1 produces needle-shape coke raw material oil system device, it is characterized in that, described gas stripping column A(8-1), gas stripping column B(8-2), gas stripping column C(8-3) connect successively after to be connected with solvent tank (6) between be also provided with condenser (7).
5. catalytic slurry according to claim 1 produces needle-shape coke raw material oil system device, and it is characterized in that, described catalytic slurry extraction tower (2) is catalytic slurry supercritical extraction tower.
6. catalytic slurry according to claim 1 produces needle-shape coke raw material oil system device, it is characterized in that, described solvent tank (6) bottom is connected with mixing tank (1) by high-pressure pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610017504.3A CN105482850A (en) | 2016-01-12 | 2016-01-12 | System device for producing needle coke crude oil through catalytic slurry oil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610017504.3A CN105482850A (en) | 2016-01-12 | 2016-01-12 | System device for producing needle coke crude oil through catalytic slurry oil |
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| CN105482850A true CN105482850A (en) | 2016-04-13 |
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| CN201610017504.3A Pending CN105482850A (en) | 2016-01-12 | 2016-01-12 | System device for producing needle coke crude oil through catalytic slurry oil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108893140A (en) * | 2018-06-05 | 2018-11-27 | 山东益大新材料有限公司 | A method of branded oil system needle-shape coke raw material is produced by solvent separation and Extraction |
| CN109679674A (en) * | 2019-01-07 | 2019-04-26 | 李刚 | A kind of needle-shape coke raw material pretreating process |
| JP2020026522A (en) * | 2018-08-16 | 2020-02-20 | 山東益大新材料有限公司Ｓｈａｎｄｏｎｇ Ｙｉｄａ Ｎｅｗ Ｍａｔｅｒｉａｌ ＣＯ．，Ｌｔｄ． | Method for producing petroleum-based needle coke raw material by using hydrogenation of aromatic compound |
| CN111718741A (en) * | 2020-06-30 | 2020-09-29 | 路磊 | Production process for producing aromatic-rich oil by using vacuum residue as raw material |
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Cited By (5)
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| CN108893140A (en) * | 2018-06-05 | 2018-11-27 | 山东益大新材料有限公司 | A method of branded oil system needle-shape coke raw material is produced by solvent separation and Extraction |
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| CN109679674A (en) * | 2019-01-07 | 2019-04-26 | 李刚 | A kind of needle-shape coke raw material pretreating process |
| CN111718741A (en) * | 2020-06-30 | 2020-09-29 | 路磊 | Production process for producing aromatic-rich oil by using vacuum residue as raw material |
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Application publication date: 20160413 |