CN1276886C - Method for treating waste oil sludge, treating device and use of its products - Google Patents
Method for treating waste oil sludge, treating device and use of its products Download PDFInfo
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- CN1276886C CN1276886C CN 200510009776 CN200510009776A CN1276886C CN 1276886 C CN1276886 C CN 1276886C CN 200510009776 CN200510009776 CN 200510009776 CN 200510009776 A CN200510009776 A CN 200510009776A CN 1276886 C CN1276886 C CN 1276886C
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Abstract
The present invention discloses a method for treating oil sludge of waste crude oil. In the method, oil sludge of crude oil is heated and dissolved in an oil sludge settling pond, and are divided into effluent oil and sediment by settlement; the effluent oil is dewatered, and the dewatered effluent oil is separated by atmospheric distillation. Treating equipment comprises an oil sludge settling pond, a distillation tower and a storage tank, wherein an overflow plate is obliquely arranged in the oil sludge settling pond, and the overflow plate divides the oil sludge settling pond into a heating settling pond and an oil collecting pond; regular filler is filled in a reducing part of the upper part of the distillation tower, a heating coil pipe is arranged in a kettle of the lower part of the distillation tower, and the bottom of the kettle is provided with a valve. The extracted components containing oil are used as boiler fuels, and matters discharged from the bottom of the distillation tower, and/or suspended matters on the surface of the heated settling pond, coal, white ash, sawdust and yellow soil are mixed to make moulded coal. The present invention has the advantages of little equipment investment, good separating effect and no secondary pollution. The products obtained by separation have the advantages of full recovery and utilization, conversion from harm to advantages, economy and environmental protection.
Description
Technical field
What the present invention relates to is treatment process, equipment and the utilization of waste oil sludge, specifically is the utilization that is used to handle method, equipment and the products obtained therefrom thereof of discarding crude oil sludge.
Background technology
Crude oil sludge is meant that specifically the oil field is scattered in the sedimentary discarded aging crude oil of ground, well site, oil producing operation or crude oil storage tank, this class greasy filth is crude oil, mud, sand, water, mixture of polymers, wherein content of crude oil does not wait at 10-40%, generally is no more than 50%.The oil field distributes wide; oil well is many, storage tank is many; all can produce a large amount of crude oil sludges when removal treatment construction well site and oil production equipment and all kinds of crude oil storage tank; these waste oil sludges can figuratively speaking be that pile up like a mountain on the oil field; harm to the mankind and environment is big especially; greatly affecting human beings'health and vegeto-animal growth, is a great problem of oil field environment protection.
At present domestic mainly is to take the mode of emergency burial to handle to this class greasy filth, as Daqing oil field.Also the someone proposes to adopt biological or uses chemical treatment method to handle, and wherein: bioremediation is because its technological standard height, treatment time are long, expense height, and not popularization; Chemical treatment method is to use chemical additive that greasy filth is handled, generally be by adding the separation that methods such as flocculation agent, emulsion splitter, sterilant, dewatering agent realize greasy filth, but owing to adopt more chemical additive, cause facility investment excessive, cost is higher, has greater environmental impacts simultaneously, and the mud after the processing is still buried, the defective that exists is that the greasy filth separation is not thorough, has secondary pollution after mud is buried.
Summary of the invention
The present invention be directed to the problems referred to above the utilization of a kind of method that is used to handle discarded crude oil sludge, equipment and products thereof is provided.
Realize technical scheme of the present invention: a kind of method that is used for handling discarded crude oil sludge is the different principle of the contained component proportion of based on crude greasy filth, with crude oil sludge heating in the greasy filth settling bowl earlier, dissolving, settlement separate one-tenth sump oil and silt, again isolated sump oil is carried out deposition dehydrating, adopt air distillation that sump oil is separated behind the deposition dehydrating.
Isolated sump oil carries out air distillation behind oil sump and sump oil storage tank second dehydration in the heating settling bowl, the distillation tower tower top temperature is controlled at 105-110 ℃, distillate a mouthful temperature and be controlled at 240-260 ℃, still kettle liquid phase temperature out is controlled at 300-320 ℃, and temperature is no more than-350 ℃ at the bottom of the still.
The silt of discharging from settling bowl is analyzed qualified back as place mat well site or stemming operation soil, is used as boiler oil from the isolated oily ingredient of distillation tower.
Also can floating one deck suspended substance (for containing mixtures such as activated carbon powder, polymkeric substance) on heating settling bowl top layer, suspended substance is isolated, is concentrated in the heating settling bowl by the dividing plate that is arranged on heating settling bowl top, ejecta at the bottom of collection back and the distillation Tata and coal, lime, sawdust, loess mixing manufacture moulded coal.
Ejecta at the bottom of the distillation Tata and/or heating settling bowl top layer suspended substance and coal, lime, sawdust, loess mixing manufacture moulded coal.
The equipment that discarded crude oil sludge treatment process relates to comprises greasy filth settling bowl, distillation tower, storage tank, the sump oil storage tank is set between greasy filth settling bowl and the distillation tower, between distillation tower and the sump oil storage tank pump, interchanger are set, connect by pipeline, be provided with pump, interchanger between distillation tower and the product storage tank, connect by pipeline; Overflow plate is installed in the medium dip of greasy filth settling bowl, by overflow plate the greasy filth settling bowl is separated into heating settling bowl and oil sump two portions; The heating settling bowl has the mud relief outlet, and steam heating tube is installed in the pond; Dress heating tube in the oil sump, side sump oil spout is connected the sump oil storage tank; Distillation tower adopts air distillation, dress structured packing in the diameter shrinkage part of top, and the middle part distillates mouth, dirty charge stock mouth, and the liquid phase stream outlet has heating coil in the still of bottom, is conical at the bottom of the still, awl bottom mounted valve.
Also available overflow wall is separated into heating settling bowl and oil sump with the greasy filth settling bowl, and overflow wall is consistent with the angle of overflow plate with the metope angle of inclination in the oil sump at the heating settling bowl.
The present invention has the following advantages and positively effect:
1, the same biological treatment of the present invention, method of chemical treatment compare, few, the good separating effect of facility investment, and the rate of recovery of contained oily substance is 98% in the greasy filth, product separation and settling bowl bottom, still kettle bottom ejecta are all utilized non-secondary pollution.
2, handle recovery for oil field mud a treatment process preferably is provided, available stock all reclaims, and turns harm into good, economic environmental protection.
Description of drawings:
Fig. 1 is an apparatus and process schematic flow sheet among the present invention;
Fig. 2 is the project organization synoptic diagram of greasy filth settling bowl overflow wall in the present device;
Among the figure: 1 greasy filth treating pond, 2 sump oil storage tanks, 3 distillation towers, 4 product storage tanks, 5 product storage tanks, 6 overflow plates, 7 heating tubes, 8 heating tubes, 9 heating steam pipes, 10 relief outlets, 11 sump oil spouts, 12 dirty charge stock mouths, 13 distillate mouth, the outlet of 14 liquid phase stream, 15 valves, 16 interchanger, 17 dividing plates.
Embodiment
Embodiment 1: Figure 1 shows that processing unit schematic flow sheet among the present invention, as shown in the figure, the treatment facility of discarded crude oil sludge comprises greasy filth treating pond 1, sump oil storage tank 2, distillation tower 3, product storage tank 4, product storage tank 5.The size of greasy filth treating pond 1, the depth are determined according to treatment capacity, overflow plate 6 is installed in the pond medium dip, overflow plate 6 highly is lower than lip 30-50cm, be 40-60 degree pitch angle for best with horizontal direction at the bottom of greasy filth settling bowl 1 pond, by overflow plate 6 greasy filth treating pond 1 is separated into two portions, a part is the heating settling bowl.By different heights three groups of steam heating tubes 9 are installed in the pond, the downward vapor-nozzle of two sides of every root canal wall uniform distribution level of steam heating tube 9, the bottom has silt relief outlet 10 and drives in the bottom, also can drive in the side, be used to heat greasy filth, sedimentation, collection silt.Another part is an oil sump, and heating coil is set in the pond, and 50cm place at the bottom of the pond, side is provided with sump oil spout 11, and sump oil spout 11 is connected with sump oil storage tank 2, is used to collect sump oil, deposition dehydrating.
Dress structured packing one magnet ring in the distillation tower 3 top diameter shrinkage parts, dress heating coil 8 uses heat-conducting oil heating in the still kettle of bottom, and the still bottom is conical, awl bottom mounted valve 15.The below is provided with the herringbone baffle plate in the opening for feed, and herringbone baffle plate below is provided with floating ball lever meter.In addition, manhole, pressure tapping, the warm double jacks of side are set as required.
Greasy filth settling bowl 1 and the distillation tower 3 middle sump oil storage tanks 2 that are provided with, sump oil storage tank 2 is connected with the sump oil spout 11 of oil sump.Be provided with pump, storage tank between distillation tower 3 and the product storage tank 4, connect by pipeline.Be provided with pump, storage tank between still kettle 3 and the product storage tank 5, connect by pipeline.
Crude oil sludge (crude content is 40%) enters the heating settling bowl of greasy filth settling bowl 1, opens the by-pass valve control of three groups of steam heating tubes 9 from bottom to top successively by the heated height difference, feeds the steam of 4-6Mpa pressure, heating for dissolving greasy filth.The natural layering owing to the proportion difference of oil, water, silt, silt is subjected to the effect of own wt, along inclined-plane sedimentation at the bottom of the pond of overflow plate 6, and gathers bottom the pond.Along with liquid level raises gradually, lysigenous sump oil covers the top of overflow plate 6, and overflow enters deposition dehydrating in the oil sump, and the sump oil after the dehydration pumps into sump oil storage tank 2 from exporting 11.Steam heating tube 7 is arranged in the sump oil storage tank 2, enter sump oil in the sump oil storage tank 2 deposition dehydrating once more under insulation, sump oil after the dehydration pumps into interchanger, heat exchange enters distillation tower 3 by opening for feed 12 after 60-70 ℃ and carries out air distillation, the head temperature of distillation tower 3 is controlled at 105-110 ℃, is discharged by the top of tower outlet less than 110 ℃ of components, and the temperature that distillates mouth 13 is controlled at 240-260 ℃, the temperature of liquid phase stream outlet 14 is controlled at 300-320 ℃, and temperature control is no more than 350 ℃ at the bottom of the still.Distillate mouthful 13 effusive components and pump into interchanger, enter product storage tank 4 about heat exchange to 60 ℃, as civil boiler fuel.Through spout 14 effusive liquid ingredients, enter sump oil interchanger 16, for entering the raw material sump oil heating of distillation tower 3, the heat of still kettle spout 14 effusive liquid components can be used like this, pump into product storage tank 5 then, as Industrial Boiler fuel.
The silt that sediment settlement pond relief outlet 10 is got rid of, qualified by analysis back is as place mat well site, engineering backfill soil.
Also can floating one deck suspended substance (for containing mixtures such as activated carbon powder, polymkeric substance) on heating settling bowl top layer, suspended substance is isolated, is concentrated in the heating settling bowl by the dividing plate 17 that is arranged on heating settling bowl top, collect that extract out in the heating settling bowl back and the ejecta of base product valve 15 is blended together, with coal, lime, sawdust, loess mixing manufacture moulded coal.Ejecta also can be respectively and coal, lime, sawdust, loess mixing manufacture moulded coal at the bottom of heating settling bowl top layer suspended substance, the air distillation Tata.
The moulded coal of ejecta and coal, lime, sawdust, loess mixing manufacture at the bottom of heating settling bowl top layer suspended substance and/or the air distillation Tata, each mixture ratio example is counted with weight %: ejecta 10-30, coal 30-60, lime 5-10, sawdust 5-20, loess 5-15 at the bottom of suspended substance and/or the distillation Tata.
The optimum proportion of the moulded coal of ejecta and coal, lime, sawdust, loess mixing manufacture is counted with weight % at the bottom of heating settling bowl top layer suspended substance and/or the air distillation Tata: ejecta 20, coal 50, lime 8, sawdust 10, loess 12 at the bottom of suspended substance and/or the distillation Tata.
Embodiment 2: Fig. 2 is another embodiment of greasy filth treating pond 1 in the discarded crude oil sludge treatment facility, the structural representation that provides according to Fig. 2, be separated into heating settling bowl and oil sump by overflow wall in the middle of the greasy filth treating pond 1, overflow wall is built with brick, concrete, the metope of overflow wall in heating settling bowl and oil sump is 60 with horizontal direction at the bottom of greasy filth settling bowl 1 pond and spends pitch angle, and other is with embodiment 1.
Claims (5)
1, a kind of treatment process that is used for discarded crude oil sludge, be with crude oil sludge heating in the greasy filth settling bowl earlier, dissolving, settlement separate one-tenth sump oil and silt, again isolated sump oil is carried out deposition dehydrating, adopt air distillation that sump oil is separated behind the deposition dehydrating.
2, the treatment process that is used for discarded crude oil sludge according to claim 1, it is characterized in that: isolated sump oil carries out air distillation behind oil sump and sump oil storage tank second dehydration in the heating settling bowl, distillation tower (3) tower top temperature is controlled at 105-110 ℃, distillate a mouthful temperature and be controlled at 240-260 ℃, still kettle liquid phase temperature out is controlled at 300-320 ℃, and temperature is no more than 350 ℃ at the bottom of the still.
3, a kind of equipment of realizing the treatment process of the described discarded crude oil sludge of claim 1, comprise greasy filth settling bowl (1), distillation tower (3), sump oil storage tank (2), product storage tank (4,5), between greasy filth settling bowl (1) and the distillation tower (3) sump oil storage tank (2) is set, between sump oil storage tank (2) and the distillation tower (3) pump, interchanger are set, connect by pipeline, distillation tower (3) and product storage tank are provided with pump, interchanger between (4,5), are connected by pipeline; Overflow plate (6) is installed in described greasy filth settling bowl (1) medium dip, by overflow plate (6) greasy filth settling bowl (1) is separated into heating settling bowl and oil sump two portions; The heating settling bowl has installs steam heating tube (9) in silt relief outlet (10), the pond, dress heating tube in the oil sump, and lateral sump oil spout (11) is connected sump oil storage tank (2); Dress structured packing in the diameter shrinkage part of described distillation tower (3) top, middle part have dirty charge stock mouth (12), distillate mouthful (13), and liquid phase stream outlet (14) has heating coil (8) in the still of bottom, are conical at the bottom of the still, awl bottom mounted valve (15).
4, the treatment facility of discarded crude oil sludge according to claim 3 is characterized in that: be separated into heating settling bowl and oil sump by overflow wall in the middle of the greasy filth treating pond (1).
5, a kind of moulded coal by ejecta and coal, lime, sawdust, loess mixing manufacture at the bottom of heating settling bowl top layer suspended substance and/or the air distillation Tata in the treatment facility of the described discarded crude oil sludge of claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510009776 CN1276886C (en) | 2005-02-26 | 2005-02-26 | Method for treating waste oil sludge, treating device and use of its products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510009776 CN1276886C (en) | 2005-02-26 | 2005-02-26 | Method for treating waste oil sludge, treating device and use of its products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1683262A CN1683262A (en) | 2005-10-19 |
| CN1276886C true CN1276886C (en) | 2006-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510009776 Expired - Fee Related CN1276886C (en) | 2005-02-26 | 2005-02-26 | Method for treating waste oil sludge, treating device and use of its products |
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| Country | Link |
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| CN (1) | CN1276886C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280205B (en) * | 2008-02-22 | 2012-02-01 | 盖学会 | Recovery processing and comprehensive utilization process for oily sediment |
| CN102417858B (en) * | 2010-09-27 | 2013-09-04 | 上海寰得环保科技有限公司 | Oil sludge separation system |
| KR102294434B1 (en) * | 2014-06-09 | 2021-08-26 | 에스케이이노베이션 주식회사 | Recycling method of sludge recovery oil |
| CN104263405B (en) * | 2014-09-30 | 2017-01-25 | 玉门市宝立源环境科技有限公司 | Demulsifier for decomposing petroleum-based oil slurry and using method of demulsifier |
| CN106554840A (en) * | 2015-09-30 | 2017-04-05 | 中国石油化工股份有限公司 | Crude oil sludge processing method and its using steam warm stove and device |
| CN107572751A (en) * | 2016-07-05 | 2018-01-12 | 中国石油化工股份有限公司 | The method for handling greasy filth |
| CN107937003A (en) * | 2017-11-27 | 2018-04-20 | 山西太钢不锈钢股份有限公司 | A kind of processing method and processing device of greasy filth |
| CN111635096A (en) * | 2020-05-18 | 2020-09-08 | 中国石油天然气股份有限公司 | Oil sludge recycling system and method |
| CN114477714B (en) * | 2021-12-27 | 2023-04-07 | 上海丛麟环保科技股份有限公司 | Recovery treatment method for tank cleaning oil sludge |
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2005
- 2005-02-26 CN CN 200510009776 patent/CN1276886C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1683262A (en) | 2005-10-19 |
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Granted publication date: 20060927 Termination date: 20140226 |