CN101892069B - Environmentally-friendly asphalt regenerant and preparation method thereof - Google Patents
Environmentally-friendly asphalt regenerant and preparation method thereof Download PDFInfo
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- CN101892069B CN101892069B CN201010218544.7A CN201010218544A CN101892069B CN 101892069 B CN101892069 B CN 101892069B CN 201010218544 A CN201010218544 A CN 201010218544A CN 101892069 B CN101892069 B CN 101892069B
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Abstract
The invention discloses environmentally-friendly asphalt regenerant and a preparation method thereof. The environmentally-friendly asphalt regenerant is prepared by using an organic solvent or a mixed solution of the organic solvent and water as an extractant, extracting the extract oil of vacuum distillate and/or the vacuum distillate of catalytic cracking oil slurry, collecting raffinate phase and collecting the extractant, or using the extractant to extract the vacuum distillate of hydrorefining, collecting the extract oil and recovering extractant, wherein the organic solvent is at least one of furfural, phenol and N-methylpyrrolidone. The aromatic hydrocarbon mass content of the obtained asphalt regenerant is over 65 percent. When the asphalt regenerant of the invention is used for regenerating asphalt and other products, the usability of the products can be improved obviously.
Description
Technical field
The present invention relates to a kind of environmentally-friendly asphalt regenerant and preparation method thereof.
Background technology
Bitumen regenerant, refers to a kind of bitumen regenerant that need to add in the time that aging bituminous pavement recovers use properties.At present, bitumen regenerant generally uses vacuum distillate or vacuum distillate through the solvent-refined mixture of extracting oil or above-mentioned vacuum distillate and viscid bitumen out, and the mixture of above-mentioned extraction oil and viscid bitumen.Polycyclic aromatic hydrocarbons in these mixtures (PCA) content is in 10～40% scope (detection method is IP346) generally, in use human body is had to potential harm.
Summary of the invention
The object of this invention is to provide a kind of bitumen regenerant and preparation method thereof.
Bitumen regenerant provided by the present invention is that mixed solvent using organic solvent or organic solvent and water is as extraction agent, extraction oil to vacuum distillate and/or the vacuum distillate of catalytically cracked oil extract, collect extracting phase and reclaim extraction agent, obtaining described bitumen regenerant; Or hydrorefined vacuum distillate is extracted with described extraction agent, collect Extract and also reclaim extraction agent, obtain described bitumen regenerant; Wherein, described organic solvent be selected from following at least one: furfural, phenol and N-Methyl pyrrolidone.
In the time that described extraction agent is the mixed solvent of organic solvent and water, in described extraction agent, the mass ratio of organic solvent and water is (95: 5)-(99.5: 0.5).
In the present invention, described hydrorefined vacuum distillate is that vacuum distillate is carried out to the treated oil obtaining after hydrotreatment; Described vacuum distillate is the petroleum fractions of 360 DEG C-530 DEG C of normal pressure boiling ranges, the cycloalkyl distillate that preferred normal pressure boiling range is 360 DEG C-450 DEG C.
The extraction oil of described vacuum distillate refers in production of lube base oils, the extraction oil that vacuum distillate obtains through solvent treatment; Described solvent be selected from following any one: furfural, phenol and N-Methyl pyrrolidone; Described extraction oil preferably naphthenic lube oil is oily through the solvent-refined extraction of inverted sequence through the solvent-refined extraction oil of inverted sequence or intermediate base lubricating oil through the solvent-refined extraction oil of inverted sequence, paraffin base lubricating oil.
The vacuum distillate of described petroleum catalytic cracking slurry oil specifically refers to that by taking wax oil or heavy oil as the catalytically cracked oil of raw material carries out underpressure distillation, the normal pressure boiling range obtaining is the distillate of 360 DEG C-530 DEG C.
In the process of extraction of the present invention, the mass ratio of described extraction agent and described raw material is 0.5: 1-4.0: 1, preferably 1.0: 1-3.0: 1.Extraction temperature can be 40-140 DEG C, preferably 45-130 DEG C.
The invention provides a kind of environmentally-friendly asphalt regenerant, in this bitumen regenerant, the mass content of polycyclic aromatic hydrocarbons is less than 5% (methods analyst of IP346), and saturated point is not more than 35%, harm is obviously reduced.During with products such as bitumen regenerant regeneration asphalts of the present invention, can obviously improve the use properties of product.
Embodiment
Experimental technique described in following embodiment, if no special instructions, is ordinary method; Described reagent and material, if no special instructions, all can obtain from commercial channels.
Embodiment 1, prepare bitumen regenerant
Taking normal pressure boiling range as the cycloalkyl distillate of 360 DEG C-450 DEG C through the pretreated treated oil of hydrogenation as raw material, taking furfural as extraction agent, adopt laboratory pilot plant to extract, extraction tower top/end temperature is respectively 120 DEG C/80 DEG C, and the mass ratio of extraction agent and petroleum fractions 3.0: 1 is collected Extract, reclaim solvent, the extraction oil obtaining is bitumen regenerant, and polycyclic aromatic hydrocarbons (PCA) content is 4.5%, and saturated point of content is 25%.
Embodiment 2, prepare bitumen regenerant
Distill the boiling range that obtains taking wax catalysis cracking slurry oil as the distillate of 360 DEG C-530 DEG C is as raw material, taking phenol as extraction agent, adopt pilot scale extraction plant in laboratory to extract, extraction tower top/end temperature is respectively 65/50 DEG C, the mass ratio of extraction agent and distillate 1.3: 1, collects refined liquid (extracting phase) and reclaims solvent, and the treated oil obtaining is bitumen regenerant, polycyclic aromatic hydrocarbons (PCA) content is 4.1%, and saturated point of content is 29%.
Embodiment 3 prepares bitumen regenerant
In traditional inverted sequence production of lube base oils, the extraction oil of the 450-530 DEG C of cycloalkyl cut of normal pressure boiling range that solvent extraction apparatus is produced is raw material, taking the mixed solvent of N-Methyl pyrrolidone and water as extraction agent (mass ratio was as 98.0: 2.0), adopt pilot scale extraction plant in laboratory to extract, extraction tower top/end temperature is respectively 65/45 DEG C, solvent with extract oily mass ratio out 2.0: 1, collect refined liquid (extracting phase) and reclaim solvent, the treated oil obtaining is bitumen regenerant, polycyclic aromatic hydrocarbons (PCA) content is 3.0%, saturated point of content is 20%.
Embodiment 4 prepares regeneration asphalt
Aged asphalt adopts laboratory oxidation style preparation, and oxidizing condition is that oxidizing temperature is 260 DEG C, and oxidation air quantity is 200L/ (hkg), oxidation 45min.The penetration degree 34 of prepared aged asphalt, 59 DEG C of softening temperatures.
The preparation of regeneration asphalt: bitumen regenerant prepared by road bitumen AH-90, aged asphalt and embodiment 2 weighs according to mass ratio at 38: 60: 2, and heated and stirred mixes, and obtains regeneration asphalt.The performance index of regeneration asphalt meet the requirement of GB/T15180 after testing, and concrete testing index is in table 1.
Embodiment 5 prepares regeneration asphalt
Aged asphalt adopts laboratory oxidation style preparation, and oxidizing condition is that oxidizing temperature is 260 DEG C, and oxidation air quantity is 200L/ (hkg), oxidation 245min.The penetration degree 24 of prepared aged asphalt, 62 DEG C of softening temperatures.
The preparation of regeneration asphalt: bitumen regenerant prepared by road bitumen AH-90, aged asphalt and embodiment 3 weighs according to mass ratio at 45: 49: 6, and heated and stirred mixes, and obtains regeneration asphalt.The performance index of regeneration asphalt meet the requirement of GB/T15180 after testing, and concrete testing index is in table 1.
Embodiment 6 prepares regeneration asphalt
Aged asphalt adopts laboratory oxidation style preparation, and oxidizing condition is that oxidizing temperature is 260 DEG C, and oxidation air quantity is 200L/ (hkg), oxidation 130min.The penetration degree 29 of prepared aged asphalt, 61 DEG C of softening temperatures.
The preparation of regeneration asphalt: bitumen regenerant prepared by road bitumen AH-90, aged asphalt and embodiment 1 weighs according to mass ratio at 50: 47: 3, and heated and stirred mixes, and obtains regeneration asphalt.The performance index of regeneration asphalt meet the requirement of GB/T15180 after testing, and concrete testing index is in table 1.Comparative example 1
Aged asphalt adopts laboratory oxidation style preparation, and oxidizing condition is that oxidizing temperature is 260 DEG C, and oxidation air quantity is 200L/ (hkg), oxidation 245min.
The preparation of regeneration asphalt: road bitumen AH-90, aged asphalt and regenerator are weighed according to mass ratio at 60: 35: 5, and heated and stirred mixes, and obtains regeneration asphalt.The performance index of regeneration asphalt meet the requirement of GB/T15180 after testing, and concrete testing index is in table 1.
The preparation of the environmental friendly regenerated pitch of table 1 and character
As shown in Table 1, the aged asphalt amount adding in comparative example is few, and the aged asphalt amount adding in embodiment 6 is many, illustrates that the regeneration effect of regenerator of the present invention is better than existing regenerator.In addition, embodiment 4-6 regenerates to the pitch of different degree of agings, for the pitch of different degree of agings, and the add-on of capable of regulating AH-90 pitch and regenerator.
Claims (9)
1. prepare a method for bitumen regenerant, be mixed solvent using organic solvent or organic solvent and water as extraction agent, the vacuum distillate of catalytically cracked oil is extracted, collect extracting phase and also reclaim extraction agent, obtain described bitumen regenerant; Or hydrorefined vacuum distillate is extracted with described extraction agent, collect Extract and also reclaim extraction agent, obtain described bitumen regenerant; Wherein, described organic solvent be selected from following at least one: furfural, phenol and N-Methyl pyrrolidone;
Described is that vacuum distillate is carried out to the distillate obtaining after hydrotreatment through the pretreated vacuum distillate of hydrogenation; Described vacuum distillate be the petroleum fractions of 360 DEG C-530 DEG C of normal pressure boiling ranges;
Described petroleum catalytic cracking slurry oil is by taking wax oil or heavy oil as the catalytically cracked oil of raw material carries out underpressure distillation, and the normal pressure boiling range obtaining is the cut of 360 DEG C-530 DEG C.
2. method according to claim 1, is characterized in that: described extraction agent is the mixed solvent of organic solvent and water, and in described extraction agent, the mass ratio of organic solvent and water is (95:5)-(99.5:0.5).
3. method according to claim 1 and 2, is characterized in that: the petroleum fractions that described normal pressure boiling range is 360 DEG C-530 DEG C is the cycloalkyl distillate of 360 DEG C-450 DEG C of normal pressure boiling ranges.
4. method according to claim 1 and 2, is characterized in that: in the process of described extraction, the mass ratio of described extraction agent and described raw material is 0.5:1-4.0:1.
5. method according to claim 4, is characterized in that: the mass ratio of described extraction agent and described raw material is 1.0:1-3.0:1.
6. method according to claim 1 and 2, is characterized in that: in the process of described extraction, extraction temperature is 40-140 DEG C.
7. method according to claim 6, is characterized in that: extraction temperature is 45-130 DEG C.
8. the bitumen regenerant that in claim 1-7, arbitrary described method prepares.
9. bitumen regenerant according to claim 8, is characterized in that: in described bitumen regenerant, the mass content of polycyclic aromatic hydrocarbons is less than 5%, and saturated point is not more than 35%.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103865278B (en) * | 2012-12-12 | 2016-03-02 | 中国海洋石油总公司 | A kind of aged asphalt performance efficiency restorative and preparation method thereof |
| CN103819912B (en) * | 2014-02-21 | 2016-01-06 | 武汉理工大学 | A kind of catalyzed reaction type SBS modified asphalt regeneration agent and preparation method thereof |
| CN104004540A (en) * | 2014-05-29 | 2014-08-27 | 嘉诚(福建)石油化工有限公司 | Method and device for separating heavy aromatics from catalytic cracking oil slurry |
| CN104530732A (en) * | 2015-01-16 | 2015-04-22 | 辽宁石油化工大学 | Method for producing heavy-duty road asphalt by modifying catalytic cracking oil slurry extract oil |
| JP6633248B2 (en) * | 2016-05-23 | 2020-01-22 | 江蘇天諾道路材料科技有限公司 | Plant mix medium-temperature regenerated asphalt mixture and method for producing the same |
| CN109722301B (en) * | 2017-10-27 | 2020-12-04 | 中国石油化工股份有限公司 | Hydrogenation method for producing transformer oil |
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| US5755865A (en) * | 1996-03-25 | 1998-05-26 | The New Paraho Corporation | Asphalt rejuvenater and recycled asphalt composition |
| EP0854235A1 (en) * | 1997-01-21 | 1998-07-22 | Repsol Petroleo S.A. | Asphalt rejuvenating products suitable for use in road pavement recycling |
| CN1470606A (en) * | 2003-06-23 | 2004-01-28 | 华东理工大学 | Method for removing alkali-nitrogen compound from poor wax oil by complex extraction |
| CN101041743A (en) * | 2006-03-24 | 2007-09-26 | 孙延忠 | Pavement bitumen regenerative agent |
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| CN1227328C (en) * | 2002-11-02 | 2005-11-16 | 中国石油化工股份有限公司 | Production method of ageing resistant road asphalt |
| JP3834698B2 (en) * | 2003-05-19 | 2006-10-18 | 新日本石油株式会社 | Blown asphalt for waterproofing construction and its manufacturing method |
| CN101597512A (en) * | 2009-07-14 | 2009-12-09 | 中国海洋石油总公司 | Environment-friendly rubber oil and preparation method thereof |
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- 2010-06-25 CN CN201010218544.7A patent/CN101892069B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1042730A (en) * | 1989-09-11 | 1990-06-06 | 齐鲁石油化工公司研究院 | Utilize wax oil to produce the new technology of high-value product |
| US5755865A (en) * | 1996-03-25 | 1998-05-26 | The New Paraho Corporation | Asphalt rejuvenater and recycled asphalt composition |
| EP0854235A1 (en) * | 1997-01-21 | 1998-07-22 | Repsol Petroleo S.A. | Asphalt rejuvenating products suitable for use in road pavement recycling |
| CN1470606A (en) * | 2003-06-23 | 2004-01-28 | 华东理工大学 | Method for removing alkali-nitrogen compound from poor wax oil by complex extraction |
| CN101041743A (en) * | 2006-03-24 | 2007-09-26 | 孙延忠 | Pavement bitumen regenerative agent |
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Effective date of registration: 20170224 Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Refining & Chemical Research Institute (Beijing) Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, room 25, No. 1414, room Patentee before: China National Offshore Oil Corporation Patentee before: China National Offshore Oil and Gas Development and Utilization Co., Ltd. |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China National Offshore Oil Corporation Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: CNOOC Refining & Chemical Research Institute (Beijing) Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China National Offshore Oil Corporation Patentee before: China National Offshore Oil Corporation Co-patentee before: CNOOC Refining & Chemical Research Institute (Beijing) Co., Ltd. |
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