CN101892069A - Environmentally-friendly asphalt regenerant and preparation method thereof - Google Patents
Environmentally-friendly asphalt regenerant and preparation method thereof Download PDFInfo
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- CN101892069A CN101892069A CN2010102185447A CN201010218544A CN101892069A CN 101892069 A CN101892069 A CN 101892069A CN 2010102185447 A CN2010102185447 A CN 2010102185447A CN 201010218544 A CN201010218544 A CN 201010218544A CN 101892069 A CN101892069 A CN 101892069A
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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 is meant a kind of bitumen regenerant that need add when the aged 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 potential harm.
Summary of the invention
The purpose 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 with organic solvent or organic solvent and water is as extraction agent, the extraction oil of vacuum distillate and/or the vacuum distillate of catalytically cracked oil are extracted, collect extracting phase and reclaim extraction agent, obtain described bitumen regenerant; Or with described extraction agent hydrorefined vacuum distillate is extracted, collect Extract and also reclaim extraction agent, obtain described bitumen regenerant; Wherein, described organic solvent is selected from following at least a: furfural, phenol and N-Methyl pyrrolidone.
When described extraction agent was the mixed solvent of organic solvent and water, the mass ratio of organic solvent and water was (95: 5)-(99.5: 0.5) in the described extraction agent.
Among the present invention, described hydrorefined vacuum distillate is that vacuum distillate is carried out the treated oil that obtains after the hydrotreatment; Described vacuum distillate is the petroleum fractions of 360 ℃-530 ℃ of normal pressure boiling ranges, the cycloalkyl distillate that preferred normal pressure boiling range is 360 ℃-450 ℃.
The extraction oil of described vacuum distillate is meant in the 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; The preferred naphthenic lube oil of described extraction oil is oily through the solvent-refined extraction of inverted sequence through 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 is meant that specifically the catalytically cracked oil that will with wax oil or heavy oil be raw material carries out underpressure distillation, and the normal pressure boiling range that obtains is 360 ℃-530 ℃ a distillate.
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, preferred 1.0: 1-3.0: 1.Extraction temperature can be 40-140 ℃, preferred 45-130 ℃.
The invention provides a kind of environmentally-friendly asphalt regenerant, the mass content of polycyclic aromatic hydrocarbons is less than 5% (methods analyst of IP346) in this bitumen regenerant, and saturated branch is not more than 35%, and human body hazardness 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 the 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, preparation bitumen regenerant
With the normal pressure boiling range is that 360 ℃-450 ℃ cycloalkyl distillate is a raw material through the pretreated treated oil of hydrogenation, with the furfural is extraction agent, adopt the laboratory pilot plant to extract, extraction cat head/end temperature is respectively 120 ℃/80 ℃, and the mass ratio of extraction agent and petroleum fractions 3.0: 1 is collected Extract, reclaim solvent, the extraction oil that obtains is bitumen regenerant, and polycyclic aromatic hydrocarbons (PCA) content is 4.5%, and content was 25% in saturated minute.
Embodiment 2, preparation bitumen regenerant
The boiling range that obtains with wax catalysis cracking slurry oil distillation is that 360 ℃-530 ℃ distillate is a raw material, with phenol is extraction agent, adopt pilot scale extraction plant in laboratory to extract, extraction cat head/end temperature is respectively 65/50 ℃, the mass ratio of extraction agent and distillate 1.3: 1 is collected refined liquid (extracting phase) and is reclaimed solvent, and the treated oil that obtains is bitumen regenerant, polycyclic aromatic hydrocarbons (PCA) content is 4.1%, and content was 29% in saturated minute.
Embodiment 3 preparation bitumen regenerants
In traditional inverted sequence production of lube base oils, the extraction oil of the 450-530 ℃ of cycloalkyl cut of normal pressure boiling range that the solvent extraction device is produced is raw material, mixed solvent with N-Methyl pyrrolidone and water is extraction agent (mass ratio is 98.0: 2.0), adopt pilot scale extraction plant in laboratory to extract, extraction cat head/end temperature is respectively 65/45 ℃, the mass ratio of solvent and extraction oil 2.0: 1, collect refined liquid (extracting phase) and reclaim solvent, the treated oil that obtains is bitumen regenerant, polycyclic aromatic hydrocarbons (PCA) content is 3.0%, and content was 20% in saturated minute.
Embodiment 4 preparation regeneration asphalts
Aged asphalt adopts laboratory oxidation style preparation, and oxidizing condition is that oxidizing temperature is 260 ℃, and the oxidation air quantity is 200L/ (hkg), oxidation 45min.The penetration degree 34 of prepared aged asphalt, 59 ℃ of softening temperatures.
The preparation of regeneration asphalt: according to mass ratio weighing in 38: 60: 2, heated and stirred mixes with the bitumen regenerant of road bitumen AH-90, aged asphalt and embodiment 2 preparations, regeneration asphalt.The performance index of regeneration asphalt satisfy the requirement of GB/T15180 after testing, and concrete testing index sees Table 1.
Embodiment 5 preparation regeneration asphalts
Aged asphalt adopts laboratory oxidation style preparation, and oxidizing condition is that oxidizing temperature is 260 ℃, and the oxidation air quantity is 200L/ (hkg), oxidation 245min.The penetration degree 24 of prepared aged asphalt, 62 ℃ of softening temperatures.
The preparation of regeneration asphalt: according to mass ratio weighing in 45: 49: 6, heated and stirred mixes with the bitumen regenerant of road bitumen AH-90, aged asphalt and embodiment 3 preparations, regeneration asphalt.The performance index of regeneration asphalt satisfy the requirement of GB/T15180 after testing, and concrete testing index sees Table 1.
Embodiment 6 preparation regeneration asphalts
Aged asphalt adopts laboratory oxidation style preparation, and oxidizing condition is that oxidizing temperature is 260 ℃, and the oxidation air quantity is 200L/ (hkg), oxidation 130min.The penetration degree 29 of prepared aged asphalt, 61 ℃ of softening temperatures.
The preparation of regeneration asphalt: according to mass ratio weighing in 50: 47: 3, heated and stirred mixes with the bitumen regenerant of road bitumen AH-90, aged asphalt and embodiment 1 preparation, regeneration asphalt.The performance index of regeneration asphalt satisfy the requirement of GB/T15180 after testing, and concrete testing index sees Table 1.Comparative Examples 1
Aged asphalt adopts laboratory oxidation style preparation, and oxidizing condition is that oxidizing temperature is 260 ℃, and the oxidation air quantity is 200L/ (hkg), oxidation 245min.
The preparation of regeneration asphalt: according to mass ratio weighing in 60: 35: 5, heated and stirred mixes with road bitumen AH-90, aged asphalt and regenerator, gets regeneration asphalt.The performance index of regeneration asphalt satisfy the requirement of GB/T15180 after testing, and concrete testing index sees Table 1.
Environmental friendly regenerated bituminous preparation of table 1 and character
As shown in Table 1, the aged asphalt amount that adds in Comparative Examples is few, and the aged asphalt amount that adds among the 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, at the pitch of different degree of agings, can adjust the add-on of AH-90 pitch and regenerator.
Claims (9)
1. method for preparing bitumen regenerant, be that mixed solvent with organic solvent or organic solvent and water is as extraction agent, the extraction oil of vacuum distillate and/or the vacuum distillate of catalytically cracked oil are extracted, collect extracting phase and reclaim extraction agent, obtain described bitumen regenerant; Or with described extraction agent hydrorefined vacuum distillate is extracted, collect Extract and also reclaim extraction agent, obtain described bitumen regenerant; Wherein, described organic solvent is selected from following at least a: furfural, phenol and N-Methyl pyrrolidone.
2. method according to claim 1 is characterized in that: described extraction agent is the mixed solvent of organic solvent and water, and the mass ratio of organic solvent and water is (95: 5)-(99.5: 0.5) in the described extraction agent.
3. method according to claim 1 and 2 is characterized in that: described is that vacuum distillate is carried out the distillate that obtains after the hydrotreatment through the pretreated vacuum distillate of hydrogenation; Described vacuum distillate be the petroleum fractions of 360 ℃-530 ℃ of normal pressure boiling ranges, the cycloalkyl distillate that preferred normal pressure boiling range is 360 ℃-450 ℃.
4. method according to claim 1 and 2 is characterized in that: the extraction oil of described vacuum distillate is meant in the production of lube base oils, the extraction oil that vacuum distillate obtains through solvent treatment; Described solvent be following any one: furfural, phenol and N-Methyl pyrrolidone; The preferred naphthenic lube oil of described extraction oil is oily through the solvent-refined extraction of inverted sequence through 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.
5. method according to claim 1 and 2 is characterized in that: described petroleum catalytic cracking slurry oil is that the catalytically cracked oil that will be raw material carries out underpressure distillation with wax oil or heavy oil, and the normal pressure boiling range that obtains is 360 ℃-530 ℃ a cut.
6. according to arbitrary described method among the claim 1-5, it 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, preferred 1.0: 1-3.0: 1.
7. according to arbitrary described method among the claim 1-6, it is characterized in that: in the process of described extraction, extraction temperature is 40-140 ℃, preferred 45-130 ℃.
8. the bitumen regenerant that arbitrary described method prepares among the claim 1-7.
9. bitumen regenerant according to claim 8 is characterized in that: the mass content of polycyclic aromatic hydrocarbons is less than 5% in the described bitumen regenerant, and saturated branch is not more than 35%.
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| CN201010218544.7A CN101892069B (en) | 2010-06-25 | 2010-06-25 | Environmentally-friendly asphalt regenerant and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819912A (en) * | 2014-02-21 | 2014-05-28 | 武汉理工大学 | Catalytic reaction type SBS modified asphalt regenerant and preparation method thereof |
| CN103865278A (en) * | 2012-12-12 | 2014-06-18 | 中国海洋石油总公司 | High-efficient performance restoring agent for aged asphalt 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 |
| CN109722301A (en) * | 2017-10-27 | 2019-05-07 | 中国石油化工股份有限公司 | Produce the method for hydrotreating of transformer oil |
| US11472740B2 (en) * | 2016-05-23 | 2022-10-18 | Jiangsu Tiannuo Road Materials Co., Ltd. | Plant-mixed warm regenerated asphalt mixture and preparation method thereof |
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| CN103865278A (en) * | 2012-12-12 | 2014-06-18 | 中国海洋石油总公司 | High-efficient performance restoring agent for aged asphalt and preparation method thereof |
| 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 |
| CN103819912A (en) * | 2014-02-21 | 2014-05-28 | 武汉理工大学 | Catalytic reaction type SBS modified asphalt regenerant 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 |
| US11472740B2 (en) * | 2016-05-23 | 2022-10-18 | Jiangsu Tiannuo Road Materials Co., Ltd. | Plant-mixed warm regenerated asphalt mixture and preparation method thereof |
| CN109722301A (en) * | 2017-10-27 | 2019-05-07 | 中国石油化工股份有限公司 | Produce the method for hydrotreating of transformer oil |
| 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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| CN101892069B (en) | 2014-08-27 |
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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. |