CN101045600A - Treatment method of oil-contained slag asphalt - Google Patents
Treatment method of oil-contained slag asphalt Download PDFInfo
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- CN101045600A CN101045600A CN 200610046201 CN200610046201A CN101045600A CN 101045600 A CN101045600 A CN 101045600A CN 200610046201 CN200610046201 CN 200610046201 CN 200610046201 A CN200610046201 A CN 200610046201A CN 101045600 A CN101045600 A CN 101045600A
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Abstract
A process for treating the floating dregs generated by floatation and containing thick oil by asphaltization includes such steps as loading said floating dregs into an intermittent stirring reactor, stirring while gradual heating, turning on vacuumizing pump, vacuum distilling to obtain water vapor and oil gas, taking the residue from said reactor, and cooling to obtain the asphaltized substance.
Description
Technical field
The present invention relates to the innoxious treatment process of oil-containing dross, particularly a kind of method that contains the viscous crude contained slag asphalt.
Technical background
In the thick-oil waste water treating processes, owing to adopt molten gas and medicament floatation process, produce a large amount of air supporting scum silica frost in oil trap and flotation cell, the profit mud ratio of oil-containing dross changes obviously, the pollutent that these oil-containing dross comprise mainly contains a large amount of chemical agents, heavy crude, heavy metal, oxygenant and salt, the pollutent majority is for poisonous and harmful and be difficult to degradable chemical, and this waste is put into " national Hazardous wastes register " (HW08 number); Water ratio is higher in the scum silica frost, and contained mud phase particle is less, but under the effect of medicament, scum silica frost still exists with the emulsification shape usually, and intractability is big, hazardness is heavy.
In the existing treatment process, relate generally to the following aspects for scum silica frost or oily sludge: the one, solidify, materials such as employing cement solidify the back landfill with oily sludge, reduce the harm to environment; The 2nd, centrifugation mainly is at the high greasy filth of solids content, and it is still very high to handle in the greasy filth of back oleaginousness, but can recovery part crude oil; The 3rd, to dewater, burn, this method solves greasy filth comparatively completely and pollutes, but exists the equipment power consumption high, and phenomenons such as the oily wasting of resources are difficult to the long-time running of the equipment that guarantees.
The oil-containing dross water ratio is generally more than 98%, through moisture reducing to below 80% after the pre-treatment, oil-containing is generally greater than 10%, the water form that exist in the scum silica frost this moment is comparatively complicated, except that the small part free-water, most water is that the form with interstitial water and internal junction Heshui or attached water exists, and these moisture form highly stable emulsified state with oil and solid, adopt breakdown of emulsion and solid-liquid separation technique also to be not easy wherein moisture, increase through the viscous crude oil-containing dross viscosity after the press filtration simultaneously, water is wrapped in the greasy filth fully, be difficult to remove with simple other treatment processs, when dealing with improperly, the one, for the waste of oil-containing resource, the 2nd, high oleaginous materials is seriously polluted.United States Patent (USP) (patent No. 4990234) discloses under a kind of normal pressure or the little negative pressure, by low temperature and two stages of high temperature, the oil in the mud is all distilled.United States Patent (USP) (patent No. 4014780) proposes heat and heats up in a steamer the oil ingredient of handling in the recovery refinery greasy filth.CN97118778.9 has also proposed a kind of process for treating oil-containing sludge, with the greasy filth that dewaters in advance by the underpressure distillation still in certain residual voltage and steaming under the temperature controlling, steam whole water and part oil, residuum carries out sedimentation, washing.But all fail the sludge residue after handling is utilized.More than just reclaim in the invention, do not reclaim heat and heat up in a steamer handling oil and reclaim remaining product, still have secondary pollution at oil ingredient in the greasy filth.
Summary of the invention
At existing treatment technology, the purpose of this invention is to provide a kind of oil-containing dross method for innocent treatment, be about to the treatment process of oil-contained slag asphalt.
For achieving the above object, the technical solution used in the present invention is:
May further comprise the steps 1) oil removal after the pre-treatment of learning from else's experience, flotation produce contain the viscous crude scum silica frost, be positioned in the intermittent type stirred autoclave, under mechanical stirring, open electrically heated, heat-up rate with 2-10 ℃/5min heats up, and opens vacuum pump simultaneously, under reduced pressure distills, drawing-off water steam, oil gas, condensation is reclaimed then; (2) reach 330-370 ℃ when temperature of reaction, keep this temperature not distillate oil gas in still and stop to heat, take out surplus materials in the still, cooling forming gets the bituminous grouting product.
The stirred autoclave feeding manner is an intermittent type, and the scum silica frost volume of material is for being less than or equal to total reaction still volumetrical 45% in the reactor; Stirring velocity is 120-200 rev/min; Pressure is 80-98Kpa.
Oil-containing dross is the scum silica frost that produces in the condensed oil sewage treating processes, its oil, water, mud ratio be oil length greater than 10%, water ratio is less than 80%, mud containing rate is less than 12%.
The advantage that the present invention had:
1. adopt the method for the present invention can oil-containing dross is thoroughly innoxious, make full use of various valuable constituents in the scum silica frost, light component can reclaim directly and use as processed oil and refinery starting material in the scum silica frost, the bituminous grouting of residue heavy ingredient.
2. adopt the product index of method bituminous grouting of the present invention to meet national road bitumen standard.
Embodiment
Embodiment 1
Below preparation method of the present invention is further specified:
(1) get the oil-containing dross after pre-treatment of certain condensed oil sewage treatment plant, the profit cement content of analyzing this scum silica frost is as shown in table 1:
Certain oil-containing dross sample essentially consist of table 1
| Sample | Water ratio (%) | Mud containing rate (%) | Oil length (%) |
| The viscous crude scum silica frost | 75.55 | 10.88 | 13.57 |
(2) oil-containing dross is inserted in the intermittent type stirred autoclave after pre-treatment, adopts the electric heater heating.The speed with 120 rev/mins begins at the uniform velocity to stir agitator in the heating while in the reactor; When 45 ℃ of beginnings slowly heat, open vacuum pump, be to distill under the reduced pressure of 92Kpa in vacuum tightness, draw the oil gas that distills out, reclaim water of condensation and lightweight oil gas through condensation; When temperature is increased to 105 ℃, strengthen stirring velocity to 160 rev/min, to continue to heat up, this moment, lightweight oil fractionated out more.
(3) temperature of reaction reaches 370 ℃, by the control heater switch, keeps this temperature to stop after 40 minutes, stops to heat, and takes out surplus materials in the still, this material air cooling moulding.Analyze its physico-chemical property.(being material index after handling) referring to table 2.
Table 2 is handled the every index of back material
| Index | Penetration degree (25 ℃, 100g), 1/10mm | Ductility (25 ℃), cm | Softening temperature (ring and ball method), ℃ | Solubleness (trichloromethane), % | Evaporation back penetration ratio, % | Flash-point, ℃ | Vaporization losses) 163 ℃, 5h), % |
| Numerical value | 98 | 105 | 42 | 99.6 | 66 | 216 | 0.85 |
Embodiment 2
Difference from Example 1 is:
(1) get the oil-containing dross after pre-treatment of another condensed oil sewage treatment plant, the profit cement content is as shown in table 3:
Certain oil-containing dross sample essentially consist of table 3
| Sample | Water ratio (%) | Mud containing rate (%) | Oil length (%) |
| After the press filtration | 77.30 | 7.32 | 15.38 |
(2) heat is heated up in a steamer in the treating processes: 1) vacuum tightness is to distill under the 84Kpa condition in the reactor; 2) maximum temperature value in the reactor stops to continue to heat up 3 when temperature of reaction reaches 350 ℃) reach top temperature after, under this temperature, continue to get final product in 30 minutes.Stop to heat, take out surplus materials in the still, cooling forming.Analyze its physico-chemical property.(being material index after handling) referring to table 4.
Table 4 is handled the every index of back material
| Index | Penetration degree (25 ℃, 100g), 1/10mm | Ductility (25 ℃), cm | Softening temperature (ring and ball method), ℃ | Solubleness (trichloromethane), % | Evaporation back penetration ratio, % | Flash-point, ℃ | Vaporization losses) 163 ℃, 5h), % |
| Numerical value | 89 | 107 | 35 | 99.3 | 62 | 237 | 0.82 |
Claims (3)
1. the treatment process of an oil-contained slag asphalt, it is characterized in that: may further comprise the steps 1) oil removal after the pre-treatment of learning from else's experience, flotation produce contain the viscous crude scum silica frost, be positioned in the intermittent type stirred autoclave, under mechanical stirring, open electrically heated, with the heat-up rate intensification of 2-10 ℃/5min, open vacuum pump simultaneously, under reduced pressure distill, drawing-off water steam, oil gas, condensation is reclaimed then; (2) reach 330-370 ℃ when temperature of reaction, keep this temperature not distillate oil gas in still and stop to heat, take out surplus materials in the still, cooling forming gets the bituminous grouting product.
2. according to the treatment process of the described oil-contained slag asphalt of claim 1, it is characterized in that: the stirred autoclave feeding manner is an intermittent type, and the scum silica frost volume of material is for being less than or equal to total reaction still volumetrical 45% in the reactor; Stirring velocity is 120-200 rev/min; Pressure is 80-98Kpa.
3. according to the treatment process of the described oil-contained slag asphalt of claim 1, it is characterized in that: oil-containing dross is the scum silica frost that produces in the condensed oil sewage treating processes, its oil, water, mud ratio be oil length greater than 10%, water ratio is less than 80%, mud containing rate is less than 12%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610046201 CN100509190C (en) | 2006-03-29 | 2006-03-29 | Treatment method of oil-contained slag asphalt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610046201 CN100509190C (en) | 2006-03-29 | 2006-03-29 | Treatment method of oil-contained slag asphalt |
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| Publication Number | Publication Date |
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| CN101045600A true CN101045600A (en) | 2007-10-03 |
| CN100509190C CN100509190C (en) | 2009-07-08 |
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| CN 200610046201 Expired - Fee Related CN100509190C (en) | 2006-03-29 | 2006-03-29 | Treatment method of oil-contained slag asphalt |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554936A (en) * | 2013-11-14 | 2014-02-05 | 辽河石油勘探局 | Asphalt-mineral composite material prepared by utilizing thickened oil sludge and preparation method thereof |
| CN109293204A (en) * | 2018-10-19 | 2019-02-01 | 东营华联石油化工厂有限公司 | A kind of sludge treatment system and its processing method |
| CN112624473A (en) * | 2020-12-17 | 2021-04-09 | 张艳 | Electroplating wastewater treatment device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX9502237A (en) * | 1994-05-19 | 1997-02-28 | Shell Int Research | Process for conversion of a hydrocarbon residual oil. |
| JP3894854B2 (en) * | 2001-07-31 | 2007-03-22 | 東京エルテック株式会社 | Waste recycling method |
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2006
- 2006-03-29 CN CN 200610046201 patent/CN100509190C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554936A (en) * | 2013-11-14 | 2014-02-05 | 辽河石油勘探局 | Asphalt-mineral composite material prepared by utilizing thickened oil sludge and preparation method thereof |
| CN103554936B (en) * | 2013-11-14 | 2015-11-25 | 辽河石油勘探局 | A kind of pitch-mineral composite utilizing thick oil sludge to prepare and preparation method thereof |
| CN109293204A (en) * | 2018-10-19 | 2019-02-01 | 东营华联石油化工厂有限公司 | A kind of sludge treatment system and its processing method |
| CN109293204B (en) * | 2018-10-19 | 2022-03-22 | 东营华联石油化工厂有限公司 | Oil sludge treatment system and treatment method thereof |
| CN112624473A (en) * | 2020-12-17 | 2021-04-09 | 张艳 | Electroplating wastewater treatment device |
| CN112624473B (en) * | 2020-12-17 | 2022-08-19 | 张艳 | Electroplating wastewater treatment device |
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| CN100509190C (en) | 2009-07-08 |
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Granted publication date: 20090708 Termination date: 20140329 |