CN104592767A - Method for producing heavy-duty road asphalt - Google Patents
Method for producing heavy-duty road asphalt Download PDFInfo
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- CN104592767A CN104592767A CN201310527029.0A CN201310527029A CN104592767A CN 104592767 A CN104592767 A CN 104592767A CN 201310527029 A CN201310527029 A CN 201310527029A CN 104592767 A CN104592767 A CN 104592767A
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Abstract
The invention discloses a method for producing heavy-duty road asphalt. The method comprises the following steps of producing de-oiled asphalt by a solvent-based deasphalting technology, carrying out catalytic slurry oil topping to obtain topped heavy slurry oil, and blending the de-oiled asphalt, the topped slurry oil and vacuum residue according to mass ratio of the de-oiled asphalt, the topped heavy slurry oil with different initial boiling points to the vacuum residue of (38-45): (14-27): (28-48) at a temperature of 170 DEG C for 20min to obtain uniform high-level road asphalt. The method reduces crude oil kind requirement of high-level road asphalt production, utilizes paraffin-based crude oil vacuum residue in production of de-oiled asphalt satisfying requirements and realizes reasonable increment utilization of low-added value catalytic cracking slurry oil.
Description
Technical field
The present invention relates to a kind of method of producing heavy-duty road asphalt, particularly a kind of production and meet the method for the heavy-duty road asphalt of new national standard AH-70.
Background technology
Pitch builds the indispensable material of high grade pavement, according to statistics, builds 1km motorway and about need 470t pitch, build 1km highway and about need 240t pitch.Along with the growth at full speed of global motorway mileage open to traffic, increasing to the demand of the especially high-grade heavy traffic paving asphalt of pitch.Simultaneously, the standard-required of countries in the world to high-grade heavy traffic paving asphalt is weeded out the old and bring forth the new, and improves constantly the index request of high-grade heavy traffic paving asphalt, is the problem of the continuous heaviness of reply crude oil, the basic demand of simultaneous adaptation new standard, in the urgent need to exploitation heavy traffic paving asphalt new process of production.
Harmonic method is produced in pitch technique alive boundary process for preparing asphalt and is occupied critical role.Blending method is produced pitch and is referred to that requirement according to asphalt quality or colloidal structure is to adjust the ratio between asphalt component, obtains the product that can meet service requirements.China is a country based on paraffinic crude, and the crude resources being applicable to produce road bitumen is limited.Along with the continuous heaviness of oil property and in poor quality, there is significant progress by the solvent deasphalting techniques optimized for the purpose of catalytically cracked material in China.This technology by-product a part of softening temperature is high, penetration degree is little de-oiled asphalt.Because oil content in de-oiled asphalt is little, penetration degree and ductility almost nil, the quality index of its character and road bitumen has a long way to go, and cannot directly utilize.Therefore the recycling of de-oiled asphalt becomes the key factor affecting solvent deasphalting unit working rate.
Catalytically cracked oil is the byproduct in petroleum refining process, and wherein fragrance point content is very high, is the soft component often used in asphalt modifier research.But owing to containing a certain amount of light constituent and wax in catalytic slurry, be all the unwanted component of road bitumen, directly concoct can produce detrimentally affect to the use of road bitumen with de-oiled asphalt.The catalytically cracked oil being heated to 320 DEG C-390 DEG C is entered slurry topping tower continuously, under a certain pressure vaporization after isolate light, weigh two components, heavy constituent can be used as the main soft component of mixing asphalt.
In order to improve China's heavy traffic paving asphalt quality, from 1 day May in 2010, China starts to perform new heavy traffic paving asphalt national standard, i.e. " GBT 15180-2010 heavy traffic paving asphalt standard ".Heavy duty road asphalt new national standard requires that the aging rear mass loss of heavy traffic paving asphalt thin film oven experiment (163 DEG C, 5h) is not higher than 0.8%, and penetration ratio is not less than 55%, and residual 15 DEG C of ductilities are greater than 30.
New national standard proposes this index that aging rear residual ductility is greater than 30 and has higher requirement for existing production and the pitch that is in harmonious proportion, and reports less up to now.Chinese invention patent CN 101045872A proposes a kind of test method directly directly being concocted de-oiled asphalt by catalysis plug slurry oil, but the aging rear penetration ratio of pitch after blending does not reach the quality index of AH-70 heavy-duty road asphalt in new national standard GBT 15180-2010.Chinese invention patent CN 1231308A propose a kind of with fragrance divide mass ratio be greater than the catalytically cracked oil after the process of 50%, process after ethylene bottom oil, solvent treatment extract out oil, one or more the mixture in vacuum residuum is blending component and petroleum pitch weight ratio is that the method for producing pitch is concocted in 1:0.5 ~ 12.0.Chinese invention patent 201010511480.X proposes a kind of method for improving ductility after No. 50 hard oil road bitumen baking ovens, the method adopts modifying asphalt device, add some amount styrene-butadiene block copolymer, by colloidal mill, they are evenly spread in pitch, stir through certain hour in stirred pot, obtain No. 50 A level oil road bitumens meeting the Ministry of Communications's requirement.
Summary of the invention
Its object of the present invention is just to provide a kind of method of producing heavy-duty road asphalt, the requirement of production to oil variety of asphalt for high grade road can be reduced, make the vacuum residuum of paraffinic crude may be used for producing satisfactory de-oiled asphalt, make low value-added catalytically cracked oil obtain utilization of reasonably rising in value.
Realize above-mentioned purpose and the technical scheme taked is, de-oiled asphalt is obtained by solvent de-asphalting process, catalytic slurry plug technique is carried out to catalytic slurry and obtains plug heavy oil slurry, de-oiled asphalt, plug slurry oil and vacuum residuum are concocted, the plug slurry oil of described de-oiled asphalt and different initial boiling point and vacuum residuum are according to (38-45): (14-27): the mass ratio of (28-48) stirs after 20min mixes and obtains final asphalt for high grade road at 170 DEG C.
Compared with prior art the present invention has the following advantages.
Utilize solvent deasphalting to carry out blending with cheap plug slurry oil and vacuum residuum to produce, the requirement of production to oil variety of asphalt for high grade road can be reduced, make the vacuum residuum of paraffinic crude may be used for producing satisfactory de-oiled asphalt, make low value-added catalytically cracked oil obtain utilization of reasonably rising in value.
Embodiment
De-oiled asphalt is obtained by solvent de-asphalting process, catalytic slurry plug technique is carried out to catalytic slurry and obtains plug heavy oil slurry, de-oiled asphalt, plug slurry oil and vacuum residuum are concocted, the plug slurry oil of described de-oiled asphalt and different initial boiling point and vacuum residuum are according to (38-45): (14-27): the mass ratio of (28-48) stirs after 20min mixes and obtains final asphalt for high grade road at 170 DEG C.
Described solvent de-asphalting process take vacuum residuum as raw material, in solvent deasphalting tank, vacuum residuum and solvent carry out mixing relief mixture flow for three times and are separated, heavy constituent after secondary extracting is drawn bottom extractor, after isolating solvent, obtains the de-oiled asphalt of high softening-point through flash distillation, stripping.
Described catalytic slurry plug technique comprises, the catalytic slurry being heated to 320 DEG C ~ 390 DEG C enters slurry topping tower continuously, under pressure operation, isolate after vaporization light, weigh two components, light constituent between rectifying section and stripping section light oil slurry collector all extract out; Heavy constituent is extracted out after stripping section is with superheated vapour stripping at the bottom of tower, obtains plug heavy oil slurry.
The raw material that the present invention produces for Jiujiang Branch Company, SINOPEC is set forth specific embodiments and is described in detail as follows, but for illustrative purposes only instead of restriction the present invention.
Case study on implementation 1
Adopt the de-oiled asphalt of Jiujiang Branch Company, SINOPEC, it is as shown in table 1 that the initial boiling point after vacuum residuum and catalytically cracked oil plug is that the ratio of 320 DEG C of plug slurry oils according to 45:15:40 stirs the character of the blend asphalt obtained after 20min mixes at 170 DEG C of temperature.
Table 1
As can be seen from Table 1, adopt technology provided by the present invention, the pitch index concocted using the de-oiled asphalt of China Petrochemical Industry's SINOPEC Jiujiang Company, vacuum residuum and plug slurry oil as raw material has met the quality index of AH-70 heavy-duty road asphalt in new national standard GBT 15180-2010.
Case study on implementation 2
Adopt the de-oiled asphalt that obtains through solvent deasphalting of Jiujiang Branch Company, SINOPEC, it is as shown in table 2 that the initial boiling point after vacuum residuum and catalytically cracked oil plug is that the ratio of 340 DEG C of plug slurry oils according to 45:27:28 stirs the character of the blend asphalt obtained after 20min mixes at 170 DEG C of temperature.
Table 2
As can be seen from Table 2, adopt technology provided by the present invention, the pitch index concocted using the de-oiled asphalt of China Petrochemical Industry's SINOPEC Jiujiang Company, vacuum residuum and plug slurry oil as raw material has met the quality index of AH-70 heavy-duty road asphalt in new national standard GBT 15180-2010.
Case study on implementation 3
Adopt the de-oiled asphalt that obtains through solvent deasphalting of Jiujiang Branch Company, SINOPEC, it is as shown in table 3 that the initial boiling point after vacuum residuum and catalytically cracked oil plug is that the ratio of 390 DEG C of plug slurry oils according to 38:14:48 stirs the character of the blend asphalt obtained after 20min mixes at 170 DEG C of temperature.
Table 3
As can be seen from Table 3, adopt technology provided by the present invention, the pitch index concocted using the de-oiled asphalt of China Petrochemical Industry's SINOPEC Jiujiang Company, vacuum residuum and plug slurry oil as raw material has met the quality index of AH-70 heavy-duty road asphalt in new national standard GBT 15180-2010.
Claims (3)
1. produce the method for heavy-duty road asphalt for one kind, it is characterized in that, de-oiled asphalt is obtained by solvent de-asphalting process, catalytic slurry plug technique is carried out to catalytic slurry and obtains plug heavy oil slurry, de-oiled asphalt, plug slurry oil and vacuum residuum are concocted, the plug slurry oil of described de-oiled asphalt and different initial boiling point and vacuum residuum are according to (38-45): (14-27): the mass ratio of (28-48) stirs after 20min mixes and obtains final asphalt for high grade road at 170 DEG C.
2. a kind of method of producing heavy-duty road asphalt according to claim 1, it is characterized in that, described solvent de-asphalting process take vacuum residuum as raw material, in solvent deasphalting tank, vacuum residuum and solvent carry out mixing relief mixture flow for three times and are separated, heavy constituent after secondary extracting is drawn bottom extractor, after isolating solvent, obtains the de-oiled asphalt of high softening-point through flash distillation, stripping.
3. a kind of method of producing heavy-duty road asphalt according to claim 1, it is characterized in that, described catalytic slurry plug technique comprises, the catalytic slurry being heated to 320 DEG C ~ 390 DEG C enters slurry topping tower continuously, under pressure operation, isolate after vaporization light, weigh two components, light constituent between rectifying section and stripping section light oil slurry collector all extract out; Heavy constituent is extracted out after stripping section is with superheated vapour stripping at the bottom of tower, obtains plug heavy oil slurry.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310527029.0A CN104592767A (en) | 2013-10-31 | 2013-10-31 | Method for producing heavy-duty road asphalt |
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| CN201310527029.0A CN104592767A (en) | 2013-10-31 | 2013-10-31 | Method for producing heavy-duty road asphalt |
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| CN104592767A true CN104592767A (en) | 2015-05-06 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105802652A (en) * | 2016-05-23 | 2016-07-27 | 神华集团有限责任公司 | Coal liquefaction residue modified asphalt and preparation method and application thereof |
| CN108179017A (en) * | 2018-01-05 | 2018-06-19 | 黄河三角洲京博化工研究院有限公司 | A kind of reconciliation pitch and preparation method thereof |
| CN108384253A (en) * | 2018-01-31 | 2018-08-10 | 中国石油天然气股份有限公司长庆石化分公司 | A kind of building asphalt prepared using hard de-oiled asphalt |
| CN109535747A (en) * | 2018-10-09 | 2019-03-29 | 中国石油化工股份有限公司 | No. 30 hard road bitumens of one kind and preparation method thereof |
| CN112592593A (en) * | 2020-12-11 | 2021-04-02 | 山东京博石油化工有限公司 | Slightly modified blended asphalt and preparation method thereof |
| CN112980485A (en) * | 2021-03-01 | 2021-06-18 | 新疆佳宇恒能源科技有限公司 | Method for preparing asphalt by using propane |
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| JPH09176657A (en) * | 1995-12-27 | 1997-07-08 | Showa Yotsukaichi Sekiyu Kk | Improved semi-blown asphalt composition and its production |
| CN1234308A (en) * | 1998-03-06 | 1999-11-10 | 东芝株式会社 | Welding method of conductor |
| CN101045872A (en) * | 2007-04-30 | 2007-10-03 | 中国石油化工股份有限公司 | Method for producing asphalt for high grade road |
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2013
- 2013-10-31 CN CN201310527029.0A patent/CN104592767A/en active Pending
Patent Citations (3)
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| JPH09176657A (en) * | 1995-12-27 | 1997-07-08 | Showa Yotsukaichi Sekiyu Kk | Improved semi-blown asphalt composition and its production |
| CN1234308A (en) * | 1998-03-06 | 1999-11-10 | 东芝株式会社 | Welding method of conductor |
| CN101045872A (en) * | 2007-04-30 | 2007-10-03 | 中国石油化工股份有限公司 | Method for producing asphalt for high grade road |
Non-Patent Citations (1)
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105802652A (en) * | 2016-05-23 | 2016-07-27 | 神华集团有限责任公司 | Coal liquefaction residue modified asphalt and preparation method and application thereof |
| CN105802652B (en) * | 2016-05-23 | 2019-04-05 | 神华集团有限责任公司 | A kind of coal liquefaction residue modified pitch and its preparation method and application |
| CN108179017A (en) * | 2018-01-05 | 2018-06-19 | 黄河三角洲京博化工研究院有限公司 | A kind of reconciliation pitch and preparation method thereof |
| CN108179017B (en) * | 2018-01-05 | 2020-07-07 | 黄河三角洲京博化工研究院有限公司 | Blended asphalt and preparation method thereof |
| CN108384253A (en) * | 2018-01-31 | 2018-08-10 | 中国石油天然气股份有限公司长庆石化分公司 | A kind of building asphalt prepared using hard de-oiled asphalt |
| CN108384253B (en) * | 2018-01-31 | 2020-06-02 | 中国石油天然气股份有限公司长庆石化分公司 | Building asphalt prepared by hard deoiled asphalt |
| CN109535747A (en) * | 2018-10-09 | 2019-03-29 | 中国石油化工股份有限公司 | No. 30 hard road bitumens of one kind and preparation method thereof |
| CN109535747B (en) * | 2018-10-09 | 2022-07-19 | 中国石油化工股份有限公司 | No. 30 hard road asphalt and preparation method thereof |
| CN112592593A (en) * | 2020-12-11 | 2021-04-02 | 山东京博石油化工有限公司 | Slightly modified blended asphalt and preparation method thereof |
| CN112980485A (en) * | 2021-03-01 | 2021-06-18 | 新疆佳宇恒能源科技有限公司 | Method for preparing asphalt by using propane |
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Application publication date: 20150506 |