CN105330061A - Advanced treatment technology for oilfield reinjection water - Google Patents

Advanced treatment technology for oilfield reinjection water Download PDF

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Publication number
CN105330061A
CN105330061A CN201510753135.XA CN201510753135A CN105330061A CN 105330061 A CN105330061 A CN 105330061A CN 201510753135 A CN201510753135 A CN 201510753135A CN 105330061 A CN105330061 A CN 105330061A
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water
ozone
oil field
catalytic tower
kaolin
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CN105330061B (en
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何丹农
董亚梅
尹桂林
童琴
吴晓燕
金彩虹
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Shanghai National Engineering Research Center for Nanotechnology Co Ltd
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Shanghai National Engineering Research Center for Nanotechnology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/32—Hydrocarbons, e.g. oil
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/78—Details relating to ozone treatment devices
    • C02F2201/782—Ozone generators
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/78—Details relating to ozone treatment devices
    • C02F2201/784—Diffusers or nozzles for ozonation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Catalysts (AREA)

Abstract

The invention discloses an advanced treatment technology system for oilfield reinjection water. The advanced treatment technology system is characterized by comprising a first-stage water inlet pump, a filter water inlet, a multi-medium filter, a water distributor, a ceramic filler area, an activated carbon filler area, a filter water outlet, a backwashing pump, a backwashing water inlet, a backwashing water outlet, a middle pool, a second-stage water inlet pump, a catalysis tower water inlet, an ozone catalysis tower, a kaolin ozone catalyst, an ozone generator, an ozone pipeline, an ozone inlet, an ozone diffuser, an ozone quencher, an ozone outlet, a catalysis tower water outlet and a draining pump. According to the advanced treatment technology system, a technical scheme for advanced treatment of oil producing wastewater is presented, the problem that organic pollutants in the oilfield reinjection water exceed the standard is systematacially solved, and the oil producing wastewater treated by the system can meet the oilfield reinjection requirements; in addition, the treatment effect is stable, the production operation cost is low, and operation is easy and convenient.

Description

A kind of advanced treatment process of oil field reinjection water
Technical field
The invention belongs to water-treatment technology field, be specifically related to a kind of oil field reinjection water advanced treatment system.
Background technology
In oil extraction process, particularly in the middle and later periods of oilfield exploitation, sand pressure declines gradually along with the prolongation of recovery time, when the pressure drop of oil reservoir is to after the saturation pressure lower than oil gas, the Sweet natural gas be dissolved in oil will be a large amount of in oil reservoir free out, oil well output obviously declines, oil gas ratio rises, underground oil property changes, viscosity is caused to increase and flow difficulties, a large amount of gas-free oils (also known as dead oil) is remained can not exploit out in the earth formation, reduce the production efficiency in oil field.In order to keep sand pressure, extend the flush stage of oil well, the main method adopted at present injects water in stratum, with the void volume that the crude oil supplementing own extraction is shared in oil reservoir, make sand pressure keep stable or rise, reach high output of oilwell stable yields, improve the object of ultimate recovery factor.Each oil field of existing China adopts water flood recovery development scheme mostly, and in order to improve follow-up production efficiency, being in animated period just starting water filling in oil field.But in water flood recovery process, inject water output together with crude oil of underground addedly stressor layer, after oily water separation, produce a large amount of oil field wastes.Current China major part oil field oneself enter mid-term and the later stage of oil production, in Produced Liquid, water content is 70-80%, some oil fields even up to 90%, and along with the increase of recovery time, water content constantly increases, and the wastewater flow rate therefore produced in China oil field is very huge.If so a large amount of recovered waters directly outer row, will very serious problem of environmental pollution be caused, waste again valuable water resources simultaneously.If after oiliness sewage treatment, reinjection into reservoir again, with the pressure on supplementary stratum, not only can avoid environmental pollution, and save a large amount of water resourcess.Carrying out processing also re-injection to oily(waste)water is that oil field realizes Sustainable Exploitation and improves a cost-saving important channel of oilfield economic benefit.Due to oil extraction waste water complicated, if directly reinjection into reservoir is used for further oil production, not only serious harm is caused to oil production equipment and system, also can destroy subsurface formations.Crude oil waste water is before unprocessed, and suspended substance (machine is mixed) in water, oleaginousness are much higher compared with the underground water of extraction, and this can cause the blocking of water injection well and oilbearing stratum directly or indirectly.
Oil exploitation industry one is directly subordinate to waste water consumption and discharge rich and influential family, and energy-saving and emission-reduction are developing directions., there is no ripe advanced treatment process both at home and abroad for oil field reinjection water, therefore this patent proposes the system process of the advanced treatment of oil field reinjection water, achieves the green process of oil extraction waste water, reduces the wastewater discharge that ton adopts crude oil.Therefore, strengthen the research dynamics to oil field reinjection water advanced treatment, formulate pointed processing scheme, explore the deep treatment technique of further oil field reinjection water, significant to the Sustainable development and energy-saving and emission-reduction realizing Oil-production Enterprises.
Summary of the invention
The object of the invention is the water quality and quantity situation according to oil field reinjection water discharge, overcome the shortcoming that prior art exists, a kind of oil field reinjection water economy, efficiently wastewater deep treatment process are provided.
The method that the present invention adopts is achieved through the following technical solutions:
A kind of advanced treatment process system of oil field reinjection water, it is characterized in that, comprise one-level intake pump, strainer water-in, more medium filter, water distributor, ceramics filling district, active carbon filler district, strainer water outlet, backwashing pump, back flushing water-in, back flushing water outlet, intermediate pool, secondary intake pump, catalytic tower water-in, ozone catalytic tower, kaolin ozone catalyst, ozonizer, ozone pipeline and inlet mouth, ozone diffuser, ozone quencher and air outlet, catalytic tower water outlet, wet-pit.
Comprise the following steps:
(1) filtrating area: pending oil field reinjection water enters more medium filter by one-level intake pump from strainer water-in from pipeline, the water distributor aperture in strainer is 25 ~ 75mm, then through ceramics filling district and active carbon filler district; The volume ratio in ceramics filling district and active carbon filler district is 1:(5 ~ 8); Behind two packing areas, enter intermediate pool by strainer water outlet; The residence time of oil field reinjection water in more medium filter is 40 ~ 120min, and it is 8 ~ 24h that more medium filter sends out backwashing period; During back flushing, clear water enters Filter Back Washing water-in from the outflow of backwashing water water outlet from backwashing pump, and whole backwashing time is 5 ~ 10min;
(2) ozone catalytic tower: the waste water in intermediate pool is entered by the water-in of secondary intake pump from ozone catalytic tower top, the kaoline loaded ozone catalyst filler of catalytic tower inside filling; The source of the gas of ozonizer is pure oxygen, the ozone produced is entered bottom catalytic tower by ozone pipeline and inlet mouth, diffuse to whole catalytic tower by ozone diffuser, the ozone be not finally utilized is eliminated by ozone quencher, then emptying by air outlet; The residence time of oil field reinjection water in catalytic tower is 20 ~ 60min, and the filling density of catalyzer is 100 ~ 300g/L, and catalyst volume accounts for 50 ~ 75% of whole catalytic tower volume; After catalytic tower catalyzed oxidation, oil field reinjection water is up to standard by wet-pit.
Described ceramics filling particle diameter is 2 ~ 10mm, and void content is 40 ~ 65%, and density is 300 ~ 500kg/m 3, ultimate compression strength>=1.5MPa.
Described active carbon filler particle diameter is 50 ~ 120 orders, and specific surface area is 2400 ~ 3600m 2/ g, surface density is 350 ~ 600kg/m 3.
Described kaoline loaded ozone catalyst filler, its feature comprises the preparation of modification infusorial earth:
(1) screen: choose particle diameter 5 ~ 25mm, uniformity coefficient is the kaolin of 85% ~ 98%;
(2) clean: the kaolin percent by volume choosing corresponding particle diameter is that 2 ~ 5% sulphuric acid solns clean 5 times, then cleans 5 times with distilled water, then dry 3 ~ 5h in 105 ~ 120 DEG C of air dry ovens, for subsequent use after cooling;
(3) flood: preparation mass concentration is 5 ~ 10% nickel nitrate solutions, 3 ~ 8% manganese nitrate solutions and 1 ~ 4% ceric ammonium nitrate solution, all with metallic element Mass Calculation, then these three kinds of solution are mixed with mixing solutions with volume ratio 1:1:1, in mixing solutions, add the oxammonium hydrochloride as dispersion agent 2 ~ 5mg/L, form dipping solution.By kaolin bubble in dipping solution, with 120 ~ 160rmp speed concussion, 5 ~ 10h in the isothermal vibration case of 35 ~ 45 DEG C; Then kaolin is taken out, at room temperature natural air drying;
(4) high temperature sintering: kaolin is placed on dry 2 ~ 5h in 105 ~ 120 DEG C of blast heating casees, put into the High Temperature Furnaces Heating Apparatus using nitrogen as shielding gas again, first be warming up to 200 ~ 300 DEG C with 15-20 DEG C/min, constant temperature calcining 2 ~ 3h, then continue to be warming up to 600 DEG C with 30-45 DEG C/min, constant temperature calcining 3 ~ 5h, then naturally cooling; The kaolin of cooling being placed on percent by volume is soak 1 ~ 3h in the salpeter solution of 50 ~ 75%, then dry 2 ~ 5h in 105 ~ 120 DEG C of blast heating casees, and naturally cooling, prepares kaolin catalyst.
Described prepare in kaoline loaded ozone catalyst that metal oxide supported dose rate is 8 ~ 20%, porosity is 80 ~ 90%, and specific surface area is 50 ~ 65m 2/ g.
The water quality and quantity situation that the present invention discharges according to oil field reinjection water, propose oil extraction waste water further treatment technique scheme, develop economy, efficiently wastewater deep treatment process, system solves the problem that oil field reinjection water organic pollutant exceeds standard, promote organic removal efficiency in oil extraction waste water, reduce the wastewater discharge that ton adopts crude oil, and realize oil extraction waste water re-injection up to standard.The oil extraction waste water advanced treatment process that the present invention proposes is with energy-saving and emission-reduction and be recycling as main task; with oil field reinjection water advanced treatment process of the present invention; treatment effect is stablized; production run cost is low, and operation runs easy, and level of automation is high; can environmental pollution be reduced, respond actively the legislations of environmental protection of increasingly stringent.Patent of the present invention proposes the system solution of oil extraction waste water advanced treatment, not only economy and environmental protection double effects, and has good social benefit and environmental benefit.
Embodiment
Below embodiments of the invention are elaborated: the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
embodiment 1:
Process the oil extraction waste water in minery, Xinjiang, before process, the water quality of oil extraction waste water is: oleaginousness is 55mg/L, and suspended substance is 45mg/L.Treating processes is as follows: waste water successively by one-level intake pump, strainer water-in, more medium filter, water distributor, ceramics filling district, active carbon filler district, strainer water outlet, backwashing pump, back flushing water-in, back flushing water outlet, intermediate pool, secondary intake pump, catalytic tower water-in, ozone catalytic tower, kaolin ozone catalyst, ozonizer, ozone pipeline and inlet mouth, ozone diffuser, ozone quencher and air outlet, catalytic tower water outlet, wet-pit.
Main processing steps is divided into:
(1) filtrating area: pending oil field reinjection water enters more medium filter by one-level intake pump from strainer water-in from pipeline, the water distributor aperture in strainer is 50mm, then through ceramics filling district and active carbon filler district.The volume ratio in ceramics filling district and active carbon filler district is 1:5.Behind two packing areas, enter intermediate pool by strainer water outlet.The residence time of oil field reinjection water in more medium filter is 60min, and it is 12h that more medium filter sends out backwashing period.During back flushing, clear water enters Filter Back Washing water-in from the outflow of backwashing water water outlet from backwashing pump, and whole backwashing time is 10min.The major function in ceramics filling district is the loss of removing particulate matter large in oil field reinjection water and preventing upper strata filtrate.
(2) ozone catalytic tower: behind two packing areas, the suspended substance in oil field reinjection water and impurity are effectively removed, and then enter intermediate pool by strainer water outlet.Waste water in intermediate pool is entered by the water-in of secondary intake pump from ozone catalytic tower top, the kaoline loaded ozone catalyst filler of catalytic tower inside filling.The source of the gas of ozonizer is pure oxygen, the ozone produced is entered bottom catalytic tower by ozone pipeline and inlet mouth, diffuse to whole catalytic tower by ozone diffuser, the ozone be not finally utilized is eliminated by ozone quencher, then emptying by air outlet.The residence time of oil field reinjection water in catalytic tower is 30min, and the filling density of catalyzer is 200g/L, and catalyst volume accounts for 75% of whole catalytic tower volume.After catalytic tower catalyzed oxidation, oil field reinjection water is up to standard by wet-pit.Ceramics filling particle diameter used is 6mm, and void content is 55%, and density is 350kg/m 3, ultimate compression strength>=1.5MPa.Active carbon filler particle diameter used is 80 orders, and specific surface area is 3000m 2/ g, surface density is 400kg/m 3.
Kaoline loaded ozone catalyst filler used, its feature comprises the preparation of modification infusorial earth:
(1) screen: choose particle diameter 15mm, uniformity coefficient is the kaolin of 95%;
(2) clean: the kaolin percent by volume choosing corresponding particle diameter is that 4% sulphuric acid soln cleans 5 times, then cleans 5 times with distilled water, then in 105 DEG C of air dry ovens, dries 4h, for subsequent use after cooling;
(3) flood: preparation mass concentration is 5% nickel nitrate solution, 6% manganese nitrate solution and 3% ceric ammonium nitrate solution (all with metallic element Mass Calculation), then these three kinds of solution are mixed with mixing solutions with volume ratio 1:1:1, in mixing solutions, add the oxammonium hydrochloride as dispersion agent 3mg/L, form dipping solution.By kaolin bubble in dipping solution, with 120rmp speed concussion 10h in the isothermal vibration case of 35 DEG C; Then kaolin is taken out, at room temperature natural air drying;
(4) high temperature sintering: kaolin is placed on dry 4h in the blast heating case of 120 DEG C of conditions; put into the High Temperature Furnaces Heating Apparatus using nitrogen as shielding gas again; first be warming up to 210 DEG C with 20 DEG C/min; constant temperature calcining 2h; then continue to be warming up to 600 DEG C with 30 DEG C/min; constant temperature calcining 3 ~ 5h, then naturally cooling.Be placed on by the kaolin of cooling in the salpeter solution of 60% and soak 2h, then dry 3h in the blast heating case of 120 DEG C of conditions, naturally cooling, prepares kaolin catalyst.In prepared kaoline loaded ozone catalyst, metal oxide supported dose rate is 15%, and porosity is 85%, and specific surface area is 60m 2/ g.
After catalytic tower catalyzed oxidation, oil field reinjection water is by wet-pit qualified discharge.
After a whole set of advanced treatment process flow processing, oil field reinjection water water quality: oleaginousness is 10mg/L, suspended substance is 2mg/L, and effluent quality reaches the water quality standard of oil field reinjection water.
embodiment 2:
Process the oil extraction waste water in minery, Xinjiang, before process, the water quality of oil extraction waste water is: oleaginousness is 42mg/L, and suspended substance is 38mg/L.Treating processes is as follows: waste water successively by one-level intake pump, strainer water-in, more medium filter, water distributor, ceramics filling district, active carbon filler district, strainer water outlet, backwashing pump, back flushing water-in, back flushing water outlet, intermediate pool, secondary intake pump, catalytic tower water-in, ozone catalytic tower, kaolin ozone catalyst, ozonizer, ozone pipeline and inlet mouth, ozone diffuser, ozone quencher and air outlet, catalytic tower water outlet, wet-pit.
Main processing steps is divided into:
(1) filtrating area: pending oil field reinjection water enters more medium filter by one-level intake pump from strainer water-in from pipeline, the water distributor aperture in strainer is 30mm, then through ceramics filling district and active carbon filler district.The volume ratio in ceramics filling district and active carbon filler district is 1:8.Behind two packing areas, enter intermediate pool by strainer water outlet.The residence time of oil field reinjection water in more medium filter is 60min, and it is 24h that more medium filter sends out backwashing period.During back flushing, clear water enters Filter Back Washing water-in from the outflow of backwashing water water outlet from backwashing pump, and whole backwashing time is 10min.The major function in ceramics filling district is the loss of removing particulate matter large in oil field reinjection water and preventing upper strata filtrate.
(2) ozone catalytic tower: behind two packing areas, the suspended substance in oil field reinjection water and impurity are effectively removed, and then enter intermediate pool by strainer water outlet.Waste water in intermediate pool is entered by the water-in of secondary intake pump from ozone catalytic tower top, the kaoline loaded ozone catalyst filler of catalytic tower inside filling.The source of the gas of ozonizer is pure oxygen, the ozone produced is entered bottom catalytic tower by ozone pipeline and inlet mouth, diffuse to whole catalytic tower by ozone diffuser, the ozone be not finally utilized is eliminated by ozone quencher, then emptying by air outlet.The residence time of oil field reinjection water in catalytic tower is 20min, and the filling density of catalyzer is 300g/L, and catalyst volume accounts for 65% of whole catalytic tower volume.After catalytic tower catalyzed oxidation, oil field reinjection water is up to standard by wet-pit.Ceramics filling particle diameter used is 8mm, and void content is 65%, and density is 300kg/m 3, ultimate compression strength>=1.5MPa.Active carbon filler particle diameter used is 100 orders, and specific surface area is 2800m 2/ g, surface density is 350kg/m 3.
Kaoline loaded ozone catalyst filler used, its feature comprises the preparation of modification infusorial earth:
(1) screen: choose particle diameter 20mm, uniformity coefficient is the kaolin of 90%;
(2) clean: the kaolin percent by volume choosing corresponding particle diameter is that 4% sulphuric acid soln cleans 5 times, then cleans 5 times with distilled water, then in 115 DEG C of air dry ovens, dries 3h, for subsequent use after cooling;
(3) flood: preparation mass concentration is 6% nickel nitrate solution, 8% manganese nitrate solution and 2% ceric ammonium nitrate solution (all with metallic element Mass Calculation), then these three kinds of solution are mixed with mixing solutions with volume ratio 1:1:1, in mixing solutions, add the oxammonium hydrochloride as dispersion agent 4mg/L, form dipping solution.By kaolin bubble in dipping solution, with 150rmp speed concussion 8h in the isothermal vibration case of 45 DEG C; Then kaolin is taken out, at room temperature natural air drying;
(4) high temperature sintering: kaolin is placed on dry 3h in the blast heating case of 120 DEG C of conditions; put into the High Temperature Furnaces Heating Apparatus using nitrogen as shielding gas again; first be warming up to 250 DEG C with 15 DEG C/min; constant temperature calcining 3h; then continue to be warming up to 600 DEG C with 30 DEG C/min; constant temperature calcining 3h; then naturally cooling; the kaolin of cooling being placed on percent by volume is soak 2.5h in the salpeter solution of 50%; then dry 4h in the blast heating case of 105 DEG C of conditions; naturally cooling, prepares kaolin catalyst.In prepared kaoline loaded ozone catalyst, metal oxide supported dose rate is 18%, and porosity is 80%, and specific surface area is 50m 2/ g.
After catalytic tower catalyzed oxidation, oil field reinjection water is by wet-pit qualified discharge.
After a whole set of advanced treatment process flow processing, oil field reinjection water water quality: oleaginousness is 8mg/L, suspended substance is 1.5mg/L, and effluent quality reaches the water quality standard of oil field reinjection water.

Claims (6)

1. the advanced treatment process system of an oil field reinjection water, it is characterized in that, comprise one-level intake pump, strainer water-in, more medium filter, water distributor, ceramics filling district, active carbon filler district, strainer water outlet, backwashing pump, back flushing water-in, back flushing water outlet, intermediate pool, secondary intake pump, catalytic tower water-in, ozone catalytic tower, kaolin ozone catalyst, ozonizer, ozone pipeline and inlet mouth, ozone diffuser, ozone quencher and air outlet, catalytic tower water outlet, wet-pit.
2. the advanced treatment process system of oil field reinjection water as claimed in claim 1, is characterized in that, comprise the following steps:
(1) filtrating area: pending oil field reinjection water enters more medium filter by one-level intake pump from strainer water-in from pipeline, the water distributor aperture in strainer is 25 ~ 75mm, then through ceramics filling district and active carbon filler district; The volume ratio in ceramics filling district and active carbon filler district is 1:(5 ~ 8); Behind two packing areas, enter intermediate pool by strainer water outlet; The residence time of oil field reinjection water in more medium filter is 40 ~ 120min, and it is 8 ~ 24h that more medium filter sends out backwashing period; During back flushing, clear water enters Filter Back Washing water-in from the outflow of backwashing water water outlet from backwashing pump, and whole backwashing time is 5 ~ 10min;
(2) ozone catalytic tower: the waste water in intermediate pool is entered by the water-in of secondary intake pump from ozone catalytic tower top, the kaoline loaded ozone catalyst filler of catalytic tower inside filling; The source of the gas of ozonizer is pure oxygen, the ozone produced is entered bottom catalytic tower by ozone pipeline and inlet mouth, diffuse to whole catalytic tower by ozone diffuser, the ozone be not finally utilized is eliminated by ozone quencher, then emptying by air outlet; The residence time of oil field reinjection water in catalytic tower is 20 ~ 60min, and the filling density of catalyzer is 100 ~ 300g/L, and catalyst volume accounts for 50 ~ 75% of whole catalytic tower volume; After catalytic tower catalyzed oxidation, oil field reinjection water is up to standard by wet-pit.
3. the advanced treatment process system of oil field reinjection water as claimed in claim 2, it is characterized in that, described ceramics filling particle diameter is 2 ~ 10mm, and void content is 40 ~ 65%, and density is 300 ~ 500kg/m 3, ultimate compression strength>=1.5MPa.
4. the advanced treatment process system of oil field reinjection water as claimed in claim 2, it is characterized in that, described active carbon filler particle diameter is 50 ~ 120 orders, and specific surface area is 2400 ~ 3600m 2/ g, surface density is 350 ~ 600kg/m 3.
5. the advanced treatment process system of oil field reinjection water as claimed in claim 2, it is characterized in that, described kaoline loaded ozone catalyst filler, its feature comprises the preparation of modification infusorial earth:
(1) screen: choose particle diameter 5 ~ 25mm, uniformity coefficient is the kaolin of 85% ~ 98%;
(2) clean: the kaolin percent by volume choosing corresponding particle diameter is that 2 ~ 5% sulphuric acid solns clean 5 times, then cleans 5 times with distilled water, then dry 3 ~ 5h in 105 ~ 120 DEG C of air dry ovens, for subsequent use after cooling;
(3) flood: preparation mass concentration is 5 ~ 10% nickel nitrate solutions, 3 ~ 8% manganese nitrate solutions and 1 ~ 4% ceric ammonium nitrate solution, all with metallic element Mass Calculation, then these three kinds of solution are mixed with mixing solutions with volume ratio 1:1:1, in mixing solutions, add the oxammonium hydrochloride as dispersion agent 2 ~ 5mg/L, form dipping solution;
By kaolin bubble in dipping solution, with 120 ~ 160rmp speed concussion, 5 ~ 10h in the isothermal vibration case of 35 ~ 45 DEG C; Then kaolin is taken out, at room temperature natural air drying;
(4) high temperature sintering: kaolin is placed on dry 2 ~ 5h in 105 ~ 120 DEG C of blast heating casees, put into the High Temperature Furnaces Heating Apparatus using nitrogen as shielding gas again, first be warming up to 200 ~ 300 DEG C with 15-20 DEG C/min, constant temperature calcining 2 ~ 3h, then continue to be warming up to 600 DEG C with 30-45 DEG C/min, constant temperature calcining 3 ~ 5h, then naturally cooling; The kaolin of cooling being placed on percent by volume is soak 1 ~ 3h in the salpeter solution of 50 ~ 75%, then dry 2 ~ 5h in 105 ~ 120 DEG C of blast heating casees, and naturally cooling, prepares kaolin catalyst.
6. the advanced treatment process system of oil field reinjection water as claimed in claim 5, it is characterized in that, metal oxide supported dose rate is 8 ~ 20% in described preparing in kaoline loaded ozone catalyst, and porosity is 80 ~ 90%, and specific surface area is 50 ~ 65m 2/ g.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107235570A (en) * 2016-03-28 2017-10-10 宝山钢铁股份有限公司 A kind of cold rolling acid waste water is up to standard and method and system of reuse
CN107758913A (en) * 2016-08-19 2018-03-06 宝山钢铁股份有限公司 A kind of method and apparatus for removing total organic carbon in cold rolling acid waste water
CN112624407A (en) * 2020-12-17 2021-04-09 华东理工大学 Deep purification method and device for oilfield acidizing and fracturing wastewater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1800046A (en) * 2005-12-08 2006-07-12 哈尔滨工业大学 Method for promoting ozone utilization rate and intensifying treatment effect of ozone contact-oxidation pool
CN101185898A (en) * 2007-12-14 2008-05-28 华南理工大学 Method for preparing ceramsite catalyst for ozone catalytic oxidation
CN102107958A (en) * 2009-12-25 2011-06-29 上海亚同环保实业股份有限公司 Method for performing advanced treatment and reuse on oil-refining sewage and matched device
CN103331170A (en) * 2013-06-28 2013-10-02 华南理工大学 Ceramsite catalyst containing metallic oxide particles as well as preparation method and application thereof
CN104556462A (en) * 2013-10-16 2015-04-29 南京科盛环保科技有限公司 Method for treating oil-field secondary produced water

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1800046A (en) * 2005-12-08 2006-07-12 哈尔滨工业大学 Method for promoting ozone utilization rate and intensifying treatment effect of ozone contact-oxidation pool
CN101185898A (en) * 2007-12-14 2008-05-28 华南理工大学 Method for preparing ceramsite catalyst for ozone catalytic oxidation
CN102107958A (en) * 2009-12-25 2011-06-29 上海亚同环保实业股份有限公司 Method for performing advanced treatment and reuse on oil-refining sewage and matched device
CN103331170A (en) * 2013-06-28 2013-10-02 华南理工大学 Ceramsite catalyst containing metallic oxide particles as well as preparation method and application thereof
CN104556462A (en) * 2013-10-16 2015-04-29 南京科盛环保科技有限公司 Method for treating oil-field secondary produced water

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MICHAEL FRANKEL: "《装置管道***配置手册（第二版）》", 31 January 2006 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107235570A (en) * 2016-03-28 2017-10-10 宝山钢铁股份有限公司 A kind of cold rolling acid waste water is up to standard and method and system of reuse
CN107235570B (en) * 2016-03-28 2021-02-19 宝山钢铁股份有限公司 Method and system for standard reaching and recycling of cold rolling acidic wastewater
CN107758913A (en) * 2016-08-19 2018-03-06 宝山钢铁股份有限公司 A kind of method and apparatus for removing total organic carbon in cold rolling acid waste water
CN112624407A (en) * 2020-12-17 2021-04-09 华东理工大学 Deep purification method and device for oilfield acidizing and fracturing wastewater

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