CN110437870B - Method for utilizing catalytic slurry oil - Google Patents
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- CN110437870B CN110437870B CN201810419418.4A CN201810419418A CN110437870B CN 110437870 B CN110437870 B CN 110437870B CN 201810419418 A CN201810419418 A CN 201810419418A CN 110437870 B CN110437870 B CN 110437870B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/02—Working-up pitch, asphalt, bitumen by chemical means reaction
- C10C3/023—Working-up pitch, asphalt, bitumen by chemical means reaction with inorganic compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/08—Working-up pitch, asphalt, bitumen by selective extraction
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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
- C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
- C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
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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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
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Abstract
The invention discloses a method for utilizing catalytic slurry oil. The method comprises the following steps: adding a modifier into the catalytic slurry oil, and stirring to obtain the modified catalytic slurry oil, wherein the catalytic slurry oil comprises the following components in parts by mass: 95.0-99.9%, modifier: 0.1 to 5.0 percent; mixing the obtained modified catalytic slurry oil with residual oil, feeding the mixture into a solvent deasphalting device, and extracting light components by solvent extraction to obtain deoiled asphalt; the modifier is one or more of condensed aluminum phosphate and silicon phosphate curing agents. The method can fully utilize the catalytic slurry oil, can improve the problems of poor temperature sensitivity and ageing resistance of the catalytic slurry oil, and improves the flash point of the deoiled asphalt, and the deoiled asphalt can be directly used as hard road asphalt or used as a raw material for blending road asphalt and waterproof asphalt.
Description
Technical Field
The invention relates to a method for utilizing catalytic slurry oil, in particular to a method for producing road asphalt.
Background
The catalytic cracking of heavy oil is one of the important secondary processing means in petroleum processing, and in order to reduce the carbon deposition of the catalyst and prolong the service life of the catalyst, a certain proportion of oil slurry is thrown out from a catalytic cracking unit, and is mostly used for producing fuel oil or mixed with residual oil to a coking unit, but the combustion performance of the FCC oil slurry is affected due to the existence of catalyst particles in the FCC oil slurry, and in addition, the catalytic cracking of heavy oil is not the best utilization way in terms of the principle of maximizing the benefit.
In order to increase the value of the FCC slurry oil, some companies have begun to use the slurry oil for the production of bitumen. The most widely used technique is to mix the slurry oil with crude oil and to produce asphalt by vacuum distillation. However, because the oil slurry contains more double bond components, catalyst particles and the like, the catalytic oil slurry has the characteristics of poor high-temperature performance, poor temperature sensitivity and poor aging resistance, which are shown in that the softening point, the dynamic viscosity at 60 ℃, the penetration index and the properties after an aging test of the blended asphalt are poor, and the change is more obvious along with the increase of the addition amount of the asphalt. As a result, either lower grades of road asphalt can be produced or the quality and performance of the original grade asphalt is reduced, and the addition of too much asphalt can affect a series of problems in the process of sale and use.
CN1302841A discloses a method for treating catalytic slurry oil, wherein the catalytic slurry oil needs to be subjected to reduced pressure distillation, and the obtained heavy component is mixed with solvent deoiled asphalt, slag-reduced after oxidation or mixed with reduced pressure residual oil and then oxidized to produce qualified road asphalt.
CN103554926A discloses a low-grade high-grade road asphalt and a preparation method thereof, wherein catalytic slurry oil and normal slag are mixed and then subjected to vacuum distillation, and then the mixture is mixed with one or more of deoiled asphalt, solvent refined extract oil and unmodified hard vacuum residue to prepare the low-grade high-grade road asphalt by a modulation method. The method still cannot solve the problem of poor temperature sensitivity and ageing resistance inherent in the catalytic slurry oil.
CN102559250A discloses a method for producing asphalt blend oil by catalyzing atmospheric distillation of slurry oil. Adding a certain amount of steam partial pressure regulator and peroxide into oil slurry, heating the mixture to 360-420 ℃, and introducing the mixture into a fractionating tower for fractionating to obtain heavy fraction at the bottom of the tower, which is higher than 360 ℃, as asphalt blending oil. The method can obtain the asphalt blending component by adopting an atmospheric distillation method, but does not mention the improvement of the temperature sensitivity and the ageing resistance of the produced road asphalt, and the increase of the viscosity of the heavy oil slurry, namely the blending oil at 100 ℃ after oxidation is mainly caused by distilling out light fractions.
CN105273421A discloses a catalytic slurry oil utilization method, which comprises the steps of using vacuum residue obtained by vacuum distillation of catalytic slurry oil as a raw material, adding a cross-linking agent into the vacuum residue to carry out cross-linking condensation reaction to prepare a condensed slurry oil, and blending the condensed slurry oil and matrix asphalt to obtain road asphalt, wherein the cross-linking agent is one or more of a peroxide cross-linking agent, a sulfur and sulfide cross-linking agent and a metal oxide. The method utilizes the improved catalytic slurry oil as a modifier for the base asphalt, but specific improving effects cannot be known from the method.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a utilization method of catalytic slurry oil. The method can fully utilize the catalytic slurry oil, can improve the problems of poor temperature sensitivity and ageing resistance of the catalytic slurry oil, improves the flash point of the deoiled asphalt, and can be used as the hard road asphalt or the raw material of the blended road asphalt.
The invention provides a method for utilizing catalytic slurry oil, which comprises the following steps:
(1) adding a modifier into the catalytic slurry oil, and stirring to prepare modified catalytic slurry oil;
(2) mixing the modified catalytic slurry oil obtained in the step (1) with residual oil, then feeding the mixture into a solvent deasphalting device, and extracting light components by solvent extraction to obtain deoiled asphalt (DOA);
wherein, based on the total raw material mass in the step (1), the raw materials are counted by mass fraction,
catalyzing slurry oil: 95.0 to 99.9 percent, preferably 97.0 to 99.8 percent;
modifying agent: 0.1 to 5.0 percent, preferably 0.2 to 3.0 percent;
the modifier is one or more of condensed aluminum phosphate and silicon phosphate curing agents.
The modifier is preferably condensed aluminum phosphate and silicon phosphate curing agent, wherein the mass ratio of the condensed aluminum phosphate to the silicon phosphate curing agent is (1: 9) - (9: 1), and preferably (3: 7) - (7: 3).
The condensed aluminum phosphate can be one or more of aluminum tripolyphosphate, modified aluminum tripolyphosphate and aluminum dihydrogen tripolyphosphate, and the fineness of the condensed aluminum phosphate is more than 325 meshes. The modified aluminum tripolyphosphate can be obtained by a conventional modification method, for example, modification by one or more methods such as an inorganic compound and a surfactant, and the inorganic compound can be one or more compounds containing common modification elements such as silicon, zinc, calcium, magnesium and the like. The fineness of the silicon phosphate curing agent is more than 1000 meshes, and the water content is less than or equal to 0.8 wt%.
In the step (2), the residual oil is one or two of vacuum residual oil and atmospheric residual oil. In the step (2), the solvent is selected from C3-C6 alkane, and is preferably a mixture of one or more of propane, butane and pentane.
In the utilization method of the catalytic slurry oil, in the step (2), the total mass of the mixture of the modified catalytic slurry oil and the residual oil is taken as a reference, and the method comprises the following raw material components in percentage by mass:
residual oil: 70 to 99 percent, preferably 80 to 97 percent;
modifying the catalytic slurry oil: 1 to 30%, preferably 3 to 20%.
In the utilization method of the catalytic slurry oil, in the step (1), the modifier is added into the catalytic slurry oil heated to 140-200 ℃, preferably into the catalytic slurry oil heated to 150-190 ℃, the stirring time is 0.5-5.0 hours, preferably the stirring time is 1.0-4.0 hours, and the stirring is carried out at 160-200 ℃, preferably the stirring is carried out at 170-190 ℃.
In the step (2) of the utilization method of the catalytic slurry oil, the temperature for mixing the modified catalytic slurry oil obtained in the step (1) and the residual oil is 80-200 ℃, and preferably 100-180 ℃.
In the step (2) of the method for utilizing the catalytic slurry oil, the conditions of solvent extraction are as follows: the solvent ratio is 3: 1-12: 1, preferably 4: 1-7: 1, the solvent ratio is the volume ratio of the solvent to the modified catalytic slurry oil and the residual oil used in the step (2), and the pressure is 2 MPa-6 MPa, preferably 3 MPa-5 MPa. The temperature at the top of the tower is 55-200 ℃, preferably 60-198 ℃, the temperature at the bottom of the tower is 50-195 ℃, preferably 55-190 ℃, wherein the temperature at the bottom of the tower is 5-20 ℃ lower than the temperature at the top of the tower, preferably 7-15 ℃. The residence time is 8min to 40min, preferably 10min to 30 min.
In the utilization method of the catalytic slurry oil, the DOA softening point is 50-120 ℃, and preferably 60-100 ℃; the penetration degree is 0 to 80 (25 ℃ C., 0.1 mm), more preferably 10 to 50 (25 ℃ C., 0.1 mm), and the DOA obtained can be used as a hard road asphalt as it is or as a raw material for a blended road asphalt.
In the utilization method of the catalytic oil slurry, the oil slurry is catalytic cracking oil slurry and can be one or more of distillate oil catalytic cracking oil slurry, heavy oil catalytic cracking oil slurry, residual oil catalytic cracking oil slurry or distillate oil blending residual oil catalytic cracking oil slurry; the residual oil comprises one or more of atmospheric residual oil and vacuum residual oil, the heavy oil can be obtained by subjecting crude oil to topping treatment, and the distillate oil comprises one or more of Vacuum Gas Oil (VGO) and Atmospheric Gas Oil (AGO).
Compared with the prior art, the invention has the following advantages:
according to the invention, the catalytic oil slurry is modified, unstable double-bond components in the oil slurry are subjected to cross-linking condensation and other reactions with a modifier, the obtained modified catalytic oil slurry and residual oil are subjected to solvent deasphalting, and the heavier components which are beneficial to the improvement of the asphalt performance in the modified catalytic oil slurry are retained in DOA through the selective dissolution and mass transfer effects of the solvent on the components, so that the temperature sensitivity, especially the high-temperature anti-rutting performance, of the asphalt is further improved, and the anti-aging performance of the asphalt is improved. The DOA can be directly used as hard road asphalt or used as raw materials of blended road asphalt and waterproof asphalt.
When the condensed aluminum phosphate and the silicon phosphate curing agent are used for modifying the catalytic slurry oil at the same time, the two modifying agents are cooperatively matched, so that the temperature sensitivity, the high-temperature anti-rutting performance, the ageing resistance and the like of the asphalt are better.
The invention opens up a feasible way for effectively utilizing the catalytic slurry oil, reducing the production cost of the road asphalt and improving the economic benefit of enterprises while improving the performances of the road asphalt and the waterproof asphalt.
Detailed Description
The technical solution of the present invention is further described below by way of examples, but these examples are not intended to limit the present invention, and wt% referred to is mass fraction.
Example 1
Heating the catalytic slurry oil to 180 ℃, adding powdery condensed aluminum phosphate (aluminum tripolyphosphate, the fineness is 800 meshes, the same below) into the catalytic slurry oil, wherein the catalytic slurry oil accounts for 98.0wt% of the total amount, the condensed aluminum phosphate accounts for 2.0wt% of the total amount, and performing ordinary stirring and mixing reaction at 180 ℃ for 210min to obtain the modified catalytic slurry oil.
Mixing the modified catalytic slurry oil with vacuum residue oil (density at 25 deg.C of 1.021 g/cm)3Softening point 44.3 ℃, flash point 279 ℃, the following same below) are mixed and added into a solvent deasphalting device, the mixing temperature is 130 ℃, the used solvent is butane, wherein the proportion of the modified catalytic slurry oil accounts for 7wt% by mass fraction based on the total mass of the modified catalytic slurry oil and the residual oil mixture, and then solvent extraction is carried out to extract light components, and the conditions of the solvent extraction are as follows: the volume ratio of the butane solvent to the modified catalytic slurry oil and the vacuum residue is 5:1, the pressure is 4.3MPa, the tower top temperature is 130 ℃, the tower bottom temperature is 120 ℃, and the retention time is 10 min. Finally, the deoiled asphalt is obtained, and the properties of the deoiled asphalt are shown in a table 2.
Example 2
Heating the catalytic slurry oil to 160 ℃, adding powdery condensed aluminum phosphate (aluminum dihydrogen tripolyphosphate with the fineness of 800 meshes) into the catalytic slurry oil, wherein the catalytic slurry oil accounts for 97.1wt% of the total amount, the condensed aluminum phosphate accounts for 2.9wt% of the total amount, and reacting at 190 ℃ for 160min by common stirring and mixing to obtain the modified catalytic slurry oil.
The conditions of mixing the modified catalytic slurry oil and the vacuum residue oil and then adding the mixture into a solvent deasphalting device for solvent extraction are the same as in example 1. The properties of the obtained deoiled asphalt are shown in Table 2.
Example 3
The catalytic slurry oil accounted for 99.7wt% of the total amount, and condensed aluminum phosphate (aluminum tripolyphosphate, fineness 600 mesh) accounted for 0.3wt% of the total amount, and the other conditions were the same as in example 1, to obtain a modified catalytic slurry oil.
The conditions of mixing the modified catalytic slurry oil and the vacuum residue oil and then adding the mixture into a solvent deasphalting device for solvent extraction are the same as in example 1. The properties of the obtained deoiled asphalt are shown in Table 2.
Example 4
Except that the powdery condensed aluminum phosphate (aluminum tripolyphosphate, fineness 800 mesh) in example 1 was changed to powdery silicon phosphate curing agent (fineness 1300 mesh, moisture content 0.8% or less, the same applies hereinafter), the procedure was otherwise the same as in example 1. The properties of the obtained deoiled asphalt are shown in Table 2.
Example 5
The conditions for preparing the modified slurry were the same as example 1 except that the powdered condensed aluminum phosphate (aluminum tripolyphosphate, fineness 800 mesh) was changed to powdered silicon phosphate curing agent (fineness 1300 mesh, moisture content less than or equal to 0.8 wt%) and condensed aluminum phosphate (aluminum tripolyphosphate, fineness 800 mesh), and 2.0wt% of the condensed aluminum phosphate was changed to 2.0wt% of the total of the silicon phosphate curing agent and the condensed aluminum phosphate, specifically, 1.2wt% of the total of the silicon phosphate curing agent and 0.8wt% of the condensed aluminum phosphate,
the conditions of mixing the modified catalytic slurry oil and the vacuum residue oil and then adding the mixture into a solvent deasphalting device for solvent extraction are the same as in example 1. The properties of the obtained deoiled asphalt are shown in Table 2.
Example 6
The catalytic slurry oil accounts for 97.0wt% of the total amount, the silicon phosphate curing agent accounts for 3.0wt% of the total amount, and the other conditions are the same as in example 4, so that the modified catalytic slurry oil is obtained.
Mixing the above modified catalytic slurry oil with atmospheric residue (density of 0.986g/cm at 25 deg.C)3Softening point of 34.0 ℃ and flash point of 203 ℃, the same below) are mixed and added into a solvent deasphalting device, the mixing temperature is 120 ℃, the used solvent is propane, wherein the proportion of the modified catalytic slurry oil accounts for 13 wt% by mass fraction based on the total mass of the modified catalytic slurry oil and the residual oil mixture, and then solvent extraction is carried out to extract light components, and the conditions of the solvent extraction are as follows: the volume ratio of the propane solvent to the modified catalytic slurry oil and the atmospheric residue oil is 6:1, the pressure is 4.0MPa, the temperature at the top of the extraction tower is 70 ℃, the temperature at the bottom of the extraction tower is 62 ℃, and the retention time is 15 min. The properties of the obtained deoiled asphalt are shown in Table 3.
Example 7
The catalytic slurry oil accounts for 99.6wt% of the total amount, the silicon phosphate curing agent accounts for 0.4wt% of the total amount, and the other conditions are the same as those in example 6, so that the modified catalytic slurry oil is obtained.
The conditions of mixing the modified catalytic slurry oil with the atmospheric residue oil and then adding the mixture into a solvent deasphalting device for solvent extraction are the same as those in example 6. The properties of the obtained deoiled asphalt are shown in Table 3.
Example 8
Except that the silicon phosphate curing agent in example 6 was changed to condensed aluminum phosphate powder (aluminum tripolyphosphate, 800 mesh fineness), the procedure was otherwise the same as in example 6. The properties of the obtained deoiled asphalt are shown in Table 3.
Example 9
The conditions for preparing the modified slurry oil are the same as those of example 6, except that 3.0wt% of the silicon phosphate curing agent is changed into 3.0wt% of the silicon phosphate curing agent (fineness 1300 meshes, water content is less than or equal to 0.8%) and condensed aluminum phosphate (aluminum tripolyphosphate, fineness 800 meshes), specifically 1.5wt% of the silicon phosphate curing agent and 1.5wt% of the condensed aluminum phosphate,
the conditions of mixing the modified catalytic slurry oil with the atmospheric residue oil and then adding the mixture into a solvent deasphalting device for solvent extraction are the same as those in example 6. The properties of the obtained deoiled asphalt are shown in Table 3.
Comparative example 1
The conditions were the same as in example 1 except that no modifier was added to the slurry to obtain a comparative slurry.
The conditions for solvent extraction by adding the heated comparative slurry oil and vacuum residue oil to a solvent deasphalting apparatus were the same as in example 1, and the properties of the obtained deasphalted asphalt are shown in Table 2.
Comparative example 2
The conditions were the same as in example 6 except that no modifier was added to the slurry to obtain a comparative slurry.
The conditions for solvent extraction by adding the heat-treated comparative slurry oil and atmospheric residue oil mixed together to a solvent deasphalting apparatus were the same as in example 6, and the properties of the obtained deasphalted asphalt are shown in Table 3.
TABLE 1 amount of modifier used in examples and comparative examples
| Examples | Condensed aluminum phosphate,% by weight | Silicon phosphate curing agent (wt%) |
| Example 1 | 2.0 | - |
| Example 2 | 2.9 | - |
| Example 3 | 0.3 | - |
| Example 4 | - | 2.0 |
| Example 5 | 0.8 | 1.2 |
| Example 6 | - | 3.0 |
| Example 7 | - | 0.4 |
| Example 8 | 3.0 | - |
| Example 9 | 1.5 | 1.5 |
| Comparative example 1 | - | - |
| Comparative example 2 | - | - |
TABLE 2 Properties of the deoiled asphalts obtained in examples and comparative examples
| Item | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 |
| Penetration degree (25)℃)/0.1mm | 20 | 18 | 24 | 21 | 20 | 26 |
| Softening point/. degree.C | 82.3 | 84.6 | 78.0 | 80.9 | 82.4 | 76.2 |
| Ductility (25 ℃ C.)/cm | 42 | 38 | 45 | 41 | 44 | 40 |
| Flash point/. degree.C | 322 | 314 | 319 | 318 | 327 | 310 |
| Penetration Index (PI) | 2.51 | 2.59 | 2.31 | 2.43 | 2.62 | 2.23 |
| TFOT(163℃,5h) | ||||||
| Penetration ratio of | 72.5 | 73.0 | 70.9 | 72.1 | 73.0 | 70.2 |
TABLE 3 Properties of the deoiled asphalts obtained in examples and comparative examples
| Item | Example 6 | Example 7 | Example 8 | Example 9 | Comparative example 2 |
| Penetration (25 deg.C)/0.1 mm | 43 | 49 | 46 | 42 | 51 |
| Softening point/. degree.C | 57.4 | 55.6 | 57.4 | 59.0 | 54.8 |
| Ductility (25 ℃ C.)/cm | 129 | 130 | 133 | 135 | 122 |
| Flash point/. degree.C | 309 | 301 | 312 | 315 | 290 |
| Penetration Index (PI) | 0.14 | 0.06 | 0.29 | 0.41 | -0.02 |
| TFOT(163℃,5h) | |||||
| Penetration ratio of | 72.6 | 68.0 | 72.7 | 73.0 | 67.0 |
Claims (17)
1. A method of utilizing a catalytic slurry oil comprising:
(1) adding a modifier into the catalytic slurry oil, and stirring to prepare modified catalytic slurry oil;
(2) mixing the modified catalytic slurry oil obtained in the step (1) with residual oil, then feeding the mixture into a solvent deasphalting device, and extracting light components by solvent extraction to obtain deoiled asphalt;
wherein, based on the total raw material mass in the step (1), the raw materials are counted by mass fraction,
catalyzing slurry oil: 95.0 percent to 99.9 percent;
modifying agent: 0.1 to 5.0 percent;
the modifier is one or more of condensed aluminum phosphate and silicon phosphate curing agents.
2. The method of claim 1, wherein: taking the total raw material mass in the step (1) as a reference, and according to mass fraction, catalyzing oil slurry: 97.0 percent to 99.8 percent; modifying agent: 0.2 to 3.0 percent.
3. The method of claim 1, wherein: in the step (1), the modifier is added into the catalytic slurry oil heated to 140-200 ℃, the stirring time is 0.5-5.0 hours, and the stirring is carried out at 160-200 ℃.
4. A method according to claim 3, characterized by: in the step (1), the modifier is added into catalytic slurry oil heated to 150-190 ℃, the stirring time is 1.0-4.0 hours, and the stirring is carried out at 170-190 ℃.
5. The method of claim 1, wherein: in the step (1), the modifier is condensed aluminum phosphate and a silicon phosphate curing agent, wherein the mass ratio of the condensed aluminum phosphate to the silicon phosphate curing agent is (1: 9) - (9: 1).
6. The method of claim 5, wherein: in the step (1), the modifier is condensed aluminum phosphate and a silicon phosphate curing agent, wherein the mass ratio of the condensed aluminum phosphate to the silicon phosphate curing agent is (3: 7) - (7: 3).
7. The method of claim 1 or 5, wherein: the condensed aluminum phosphate is one or more of aluminum tripolyphosphate, modified aluminum tripolyphosphate and aluminum dihydrogen tripolyphosphate, and the fineness of the condensed aluminum phosphate is more than 325 meshes; the fineness of the silicon phosphate curing agent is more than 1000 meshes, and the water content is less than or equal to 0.8 wt%.
8. The method of claim 1, wherein: in the step (2), the residual oil is one or two of vacuum residual oil and atmospheric residual oil; the solvent is selected from C3-C6 alkane.
9. The method of claim 8, wherein: the solvent is one or more selected from propane, butane and pentane.
10. The method of claim 1, wherein: in the step (2), the modified catalytic slurry oil and residual oil mixture comprises the following raw material components in percentage by mass based on the total mass of the modified catalytic slurry oil and residual oil mixture:
residual oil: 70% -99%;
modifying the catalytic slurry oil: 1 to 30 percent.
11. The method of claim 10, wherein: in the step (2), the modified catalytic slurry oil and residual oil mixture comprises the following raw material components in percentage by mass based on the total mass of the modified catalytic slurry oil and residual oil mixture:
residual oil: 80% -97%;
modifying the catalytic slurry oil: 3 to 20 percent.
12. The method of claim 1, wherein: the mixing temperature of the modified catalytic slurry oil obtained in the step (1) and the residual oil is 80-200 ℃.
13. The method of claim 12, wherein: the mixing temperature of the modified catalytic slurry oil obtained in the step (1) and the residual oil is 100-180 ℃.
14. The method of claim 1, wherein: in the step (2), the solvent extraction conditions are as follows: according to the volume ratio, the solvent ratio is 3: 1-12: 1, the pressure is 2 MPa-6 MPa, the tower top temperature is 55-200 ℃, the tower bottom temperature is 50-195 ℃, the tower bottom temperature is 5-20 ℃ lower than the tower top temperature, and the retention time is 8-40 min.
15. The method of claim 14, wherein: in the step (2), the solvent extraction conditions are as follows: according to the volume ratio, the solvent ratio is 4: 1-7: 1, the pressure is 3 MPa-5 MPa, the tower top temperature is 60-198 ℃, the tower bottom temperature is 55-190 ℃, the tower bottom temperature is 7-15 ℃ lower than the tower top temperature, and the retention time is 10-30 min.
16. The method of claim 1, wherein: the obtained deoiled asphalt is used as hard road asphalt or as a raw material for preparing road asphalt.
17. The method of claim 1, wherein: the catalytic oil slurry is one or more of distillate oil catalytic cracking oil slurry, heavy oil catalytic cracking oil slurry, residual oil catalytic cracking oil slurry or distillate oil blending residual oil catalytic cracking oil slurry; the residual oil comprises one or more of atmospheric residual oil and vacuum residual oil, the heavy oil is obtained by performing topping treatment on crude oil, and the distillate oil comprises one or more of vacuum gas oil and atmospheric gas oil.
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| JP2016176033A (en) * | 2015-03-20 | 2016-10-06 | Ｊｘエネルギー株式会社 | Hard asphalt composition, goose asphalt mixture and manufacturing method therefor |
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