CN102115677B - Method for producing environment-friendly high aromatic oil for rubber - Google Patents
Method for producing environment-friendly high aromatic oil for rubber Download PDFInfo
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- CN102115677B CN102115677B CN2010106041219A CN201010604121A CN102115677B CN 102115677 B CN102115677 B CN 102115677B CN 2010106041219 A CN2010106041219 A CN 2010106041219A CN 201010604121 A CN201010604121 A CN 201010604121A CN 102115677 B CN102115677 B CN 102115677B
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- aromatic oil
- high aromatic
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- rubber
- oil
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Abstract
The invention belongs to the field of chemical production, and in particular discloses a method for producing environment-friendly high aromatic oil for rubber, which is characterized by comprising the following steps of: introducing a solvent prepared according to a formula, and high aromatic oil subjected to heating, filtration deslagging, high-temperature distillation and blending according to a formula into an extraction tower, and removing a polycyclic aromatic compound (PCA) and polycyclic aromatic hydrocarbons (PAHs) from the high aromatic oil through reflux by adopting a pressurizing and heating extraction method; and respectively performing light phase distillation and heavy phase distillation, and distilling out a solvent in the light phase to obtain a product. The method has the advantages of accurate process, continuous production, no leakage, no flame or explosion, environmental friendliness, no pollution, and low production cost, and is suitable to be widely promoted and applied.
Description
(1) technical field
The invention belongs to chemical production field, particularly a kind of rubber is with the working method of environmental protection level high aromatic oil.
(2) background technology
Aromatic hydrocarbon oil is a kind of important RX, has fabulous blending with conventional rubber, can give good performance of technical process of rubber and physical and mechanical properties, in large rubber items such as tire, conveying belt, sebific duct, is widely used.Existing working method is, with the residual oil in the petroleum refining process or vacuum residuum through heating, filter cleaner, pyrogenic distillation, physics and chemistry test, that prescription is in harmonious proportion, detects is qualified, warehouse-in.The aromatic hydrocarbon oil polycyclic aromatic hydrocarbon content that present method is produced is higher; This compounds has carinogenicity, mutagenicity and reproductive system toxic; Its PCA content greater than 3%, PAHs content is greater than 10ppm; Do not reach the 2005/69/EC of European Union command request, ban use of in European Union since on January 1st, 2010.
(3) summary of the invention
The present invention is in order to remedy the deficiency of prior art, and a kind of serialization production, the leak free rubber working method with environmental protection level high aromatic oil is provided.
The present invention realizes through following technical scheme:
A kind of rubber is with the working method of environmental protection level high aromatic oil, comprises through the high aromatic oil of heating, filter cleaner, pyrogenic distillation and prescription are in harmonious proportion, and it is characterized in that: high aromatic oil and prescription solvent are fed in the extraction tower; Adopt the extraction process of heating; In the tower internal pressure is 6.5～9.5MPa, and tower top temperature is 215～230 ℃, and tower middle part temperature is 180～195 ℃; Column bottom temperature is to remove PCA and PAHs in the high aromatic oil through backflow under 150～160 ℃ the state; Under 250～260 ℃ situation, gently distill mutually respectively then and heavy phase distillation, steam light solvent in mutually, obtain product.
The present invention under certain temperature, pressure and time, through the prescription solvent to the superpower solvability of polycyclic aromatic hydrocarbons, with the PCA content in the high aromatic oil be reduced to below 3%, PAHs content is reduced to below the 10ppm, reaches the european union directive requirement.
More excellent scheme of the present invention is:
Said high aromatic oil is 1: 6.3～8.5 with the weight ratio of prescription solvent.
Said prescription solvent is one or more in oil of mirbane, N, tetramethylene sulfone, furfural, the DMSO 99.8MIN., and the weight ratio by 0.1～0.25: 0.2～0.25: 0.25～0.35: 0.2～0.25: 0.15～0.25 is formed.
Aromaticity content in the said high aromatic oil is greater than 30%.
In the successive production process; Whole plant and pipeline all are in strict sealed state; No any gas, liquid leak, and all the other employed solvents are all nontoxic, nonflammable, explosive except that high aromatic oil, have guaranteed the healthy of worker and safety in production; And fundamentally stopped environment and atmospheric pollution have been reached environmental protection production fully.
Technology of the present invention is accurate, and the production serialization does not have and leaks, and nonflammable, explosive, environment friendly and pollution-free, production cost is low, is suitable for wide popularization and application.
(4) description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Accompanying drawing is a process flow diagram of the present invention.
(5) embodiment
Embodiment:
1. the pre-treatment of high aromatic oil: raw oil puts in storage → checks → heats → filter cleaner → pyrogenic distillation → prescription mediation → check;
2. the allotment of prescription solvent: solvent warehouse-in → check → prescription allotment → check;
The prescription solvent is one or more in oil of mirbane, N, tetramethylene sulfone, furfural, the DMSO 99.8MIN., and the weight ratio by 0.1～0.25: 0.2～0.25: 0.25～0.35: 0.2～0.25: 0.15～0.25 is formed;
3. extraction process: the tower internal pressure is 6.5～9.5MPa; Tower top temperature is 215～230 ℃; Tower middle part temperature is 180～195 ℃; Column bottom temperature is to remove PCA and PAHs in the high aromatic oil through backflow under 150～160 ℃ the state, under 250～260 ℃ situation, gently distills mutually respectively then and the heavy phase distillation, steams light solvent in mutually;
4. the light phase leftover materials after the distillation are through after the assay was approved; Promptly obtain environmental protection level high aromatic oil finished product; The environmental protection level high aromatic oil yield that obtains is more than 80%, and the heavy phase leftover materials after the distillation are fully used at other field simultaneously, effectively reduce product cost.
Claims (3)
1. a rubber is with the working method of environmental protection level high aromatic oil, comprises through the high aromatic oil of heating, filter cleaner, pyrogenic distillation and prescription are in harmonious proportion, and it is characterized in that: high aromatic oil and prescription solvent are fed in the extraction tower; Adopt the extraction process of heating; In the tower internal pressure is 6.5 ~ 9.5MPa, and tower top temperature is 215 ~ 230 ℃, and tower middle part temperature is 180 ~ 195 ℃; Column bottom temperature is to remove PCA and PAHs in the high aromatic oil through backflow under 150 ~ 160 ℃ the state; Under 250 ~ 260 ℃ situation, gently distill mutually respectively then and heavy phase distillation, steam light solvent in mutually, obtain product; Said prescription solvent is that oil of mirbane, N, tetramethylene sulfone, furfural, DMSO 99.8MIN. are formed by the weight ratio of 0.1 ~ 0.25:0.2 ~ 0.25:0.25 ~ 0.35:0.2 ~ 0.25:0.15 ~ 0.25.
2. rubber according to claim 1 is characterized in that with the working method of environmental protection level high aromatic oil: said high aromatic oil is 1:6.3 ~ 8.5 with the weight ratio of prescription solvent.
3. rubber according to claim 1 and 2 is characterized in that with the working method of environmental protection level high aromatic oil: the aromaticity content in the said high aromatic oil is greater than 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106041219A CN102115677B (en) | 2010-12-24 | 2010-12-24 | Method for producing environment-friendly high aromatic oil for rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106041219A CN102115677B (en) | 2010-12-24 | 2010-12-24 | Method for producing environment-friendly high aromatic oil for rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102115677A CN102115677A (en) | 2011-07-06 |
| CN102115677B true CN102115677B (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106041219A Expired - Fee Related CN102115677B (en) | 2010-12-24 | 2010-12-24 | Method for producing environment-friendly high aromatic oil for rubber |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6416655B1 (en) * | 1999-07-23 | 2002-07-09 | Exxonmobil Research And Engineering Company | Selective extraction using mixed solvent system |
| CN101906317A (en) * | 2010-08-09 | 2010-12-08 | 华中科技大学 | Method for preparing environment-friendly aromatic oil from catalytic cracking slurry oil |
-
2010
- 2010-12-24 CN CN2010106041219A patent/CN102115677B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6416655B1 (en) * | 1999-07-23 | 2002-07-09 | Exxonmobil Research And Engineering Company | Selective extraction using mixed solvent system |
| CN101906317A (en) * | 2010-08-09 | 2010-12-08 | 华中科技大学 | Method for preparing environment-friendly aromatic oil from catalytic cracking slurry oil |
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| Publication number | Publication date |
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| CN102115677A (en) | 2011-07-06 |
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