CN106316019A - Comprehensive utilization method for petroleum and petrochemical oily sludge resources - Google Patents
Comprehensive utilization method for petroleum and petrochemical oily sludge resources Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 84
- 239000003208 petroleum Substances 0.000 title claims abstract description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention belongs to a comprehensive utilization method for petroleum and petrochemical oily sludge resources. The comprehensive utilization method comprises the following treatment steps: 1, pumping oily sludge into a mixing storage tank, adding water for dilution and mixing, and adding a composite emulsion breaking and desulfurizing agent and a catalytic oxidation diluent for physical and chemical dispersion and odor removal; 2, adding an oily sludge eluent according to the oil content of the sludge, and performing first-stage low-temperature air flotation oil removal; 3, supplementing the oily sludge eluent, and performing second-stage low-temperature air flotation separation; 4, adding a flocculating agent for third-stage settling, and performing centrifugal dewatering on settled sludge; and 5, drying centrifugal residual sludge with radio frequency electromagnetic energy, and performing harmless treatment. According to the method for treating the petroleum and petrochemical oily sludge, oil resources can be fully recycled, and the sludge can be used in an environment-friendly manner; water can be reused, and the rest of the water can be discharged at the standard level; compared with a burying method, the method disclosed by the invention can save a large area of land and does not pollute the environment nearly; and compared with a burning method, the method disclosed by the invention has the advantages of saving more cost for construction, operation and maintenance.
Description
Technical field
" three change " that the present invention relates to a kind of petroleum and petrochemical industry oily sludge process, the most innoxious, resource, minimizing
The method of comprehensive utilization processed, may be adapted to oil field prospecting exploitation ground sludge, associating production station and reservoir storage tank and collects defeated leakage
The comprehensive utilization of resources of greasy filth processes；It is also suitably for oil refining and petroleum chemical enterprise's Sewage Plant " three mud ", tank field " tank bottoms mud " and land car
The carrieds of crude oil such as load and marine oil tanker produce the comprehensive utilization of resources process sinking to the bottom greasy filth.
Background technology
Petroleum and petrochemical industry oily sludge is oily by water, oil emulsion or absorption, solid-state silt three-phase forms.Greasy filth in water many in
Stable suspersion emulsion system, its hydration charging property forms again stable dispersed, carries oils base qualitative diversity, cause very difficult
The prominent characteristic of multi-phase separation；Cause different oily sludge composition the most complicated, the difference feature that character is different.Existing
Specific resistance to filtration method has many, but is mostly for oil field individual event ground sludge, outdoor big reservoir or storage tank bed mud, or refinery
The mineral oil individual event of individual event " three mud " or tank field storage tank bed mud is reclaimed and is realized what economic interests extra earning was carried out；Universities and colleges of China with
Scientific research institutions carried out the laboratory " three change " of a large amount of oily sludge and studied and expansion instrument operation test, but rarely seen Chinese large-sized
Industrial scale, both may be adapted to oil field prospecting, exploitation fresh or had stored ground sludge and the oil extraction in oil field associating of many annual agings
Stand and reservoir, storage tank and collection defeated leakage greasy filth, the land vehicle-mounted greasy filth comprehensive utilization of resources sunk to the bottom with marine vessel etc. process；Especially
It may also suitably be at the comprehensive utilization of resources of the most intractable oil refining and petroleum chemical enterprise's Sewage Plant " three mud " and tank field " tank bottoms mud "
Reason, and industrial scale application case for many years can be run by successful stabilization.
To this end, our company makes great efforts through for many years, develop and be applicable to petroleum and petrochemical industry oily sludge " three change " process
Resource comprehensive utilization method, by national environmental protection requirement up to standard, only need automatic control intellectuality to adjust and add medicine composition and consumption and operation
Parameter, can realize the high efficiente callback of oil in greasy filth；Water sends Petroleum & Petrochemical Enterprises Sewage Plant back to or refinery factory sewage plant remakes
The dilution water of oil-sludge treatment recycles, and arranges outside residue water decrement up to standard；Final powder or particulate dry mud can be completely achieved life
The friendly utilization of state environment.The method can save a large amount of soil and without environment ecological pollution than landfill method；More save than burning method and build
If investment, day-to-day operation and maintenance cost.
Summary of the invention
The present invention is a kind of petroleum and petrochemical industry oily sludge Resource comprehensive utilization method.
This method is to realize, for petroleum and petrochemical industry oily sludge, the method for comprehensive utilization that " three change " processes, and it is right to can be used for
Oil exploration, exploit, collect defeated ground sludge and field joint stations reservoir, storage tank sludge handling；It is also applied for sewage from oil refinery
Stand with " three mud " of petroleum chemical enterprise's Sewage Plant, tank field " storage tank bed mud " and land vehicle-mounted and marine mammoth tanker conveying naval vessel sink to the bottom
The process of greasy filth.
When using this method to process, except the place to oil field prospecting, exploitation fresh or the ground sludge storing many annual agings
In addition to reason (needing first fragment, sorting to add water pre-slurrying except remove impurity admittedly), remaining above-mentioned all kinds of oily sludge all can directly use this method
Processing, it is as follows that it processes step:
A kind of petroleum and petrochemical industry oily sludge Resource comprehensive utilization method, it is as follows that the method processes step:
The first step, adds composite demulsification desulfurizing agent in pretreated mud, after mix homogeneously, adds chemical catalysis
Oxidation diluent, and stir strengthening physical dispersion；
Second step, adds oil sludge elution agent, and steam heat and keeps temperature to be 30-40 DEG C and carries out one-level greasy filth separation, general
One-level greasy filth separates the oil slick produced and reclaims stand-by；
3rd step, in the mud produce added the separation of one-level greasy filth again oil sludge elution agent and carries out two grades of greasy filth separation, will
Two grades of greasy filth separate the oil slick produced and reclaim stand-by；
4th step, added two grades of greasy filth flocculation flocculation aid and carries out three grades of precipitation purified treatment, precipitation in the mud separate
It is stand-by that supernatant top layer oil skims recovery, the water section circulating and recovering after oil skimming, and residue water pump send Love psychology station, lower sediment
Residual body refuse be centrifuged dehydration, be dehydrated residual mud after radio-frequency electromagnetic energy mummification is harmless, outer running recycling.
Mud in greasy filth concentration basin and activated sludge concentration basin is pumped in mediation storage tank, according to the quality of mud Yu water
After ratio is the dilution proportion of 1: 2, stirring mixing is quenched.
In the first step, described composite demulsification, the 2-5% that addition is sludge quality of desulfurizing agent, at speed of agitator 148
Rev/min, the time be mix homogeneously under conditions of 1-3 hour；
Described physical dispersion system uses high shear circulating pump to disperse mud.
In the first step, described chemical catalytic oxidation diluent is complexed surfactant；
Wherein, when mud oil content is more than 10%, it is main with hydrophilic surfactant active；Mud oil content is less than 5%
Time, it is main with lipophilic surfactant, when mud oil content is 5-10%, hydrophilic surfactant active and lipophilic surface live
Property agent according to mass ratio 1: 1 add.
In second step, adding the 2-5% that amount is sludge quality of oil sludge elution agent, the process time is 0.5-2 hour.
In the third step, described in add oil sludge elution agent is sludge quality 2%, heating maintain temperature 30～40
℃；During to oil content more than 10%, separately add the oxidation dispersion diluent strengthening removing oil that quality is mud 1-2%.
The separation of one-level greasy filth, two grades of greasy filth separation and three grades of liquid-surface floating oils purifying precipitation top layers are skimmed recovery and deposit in the lump
Enter Oil Recovery case, regular back mixing factory freshening finished fuel.
The invention have the benefit that
1. the present invention need not invest substantial contribution and builds concentration basin, it is only necessary to install the holding vessel of appropriately sized capacity,
The nutsch filter that design and installation is capable of washing in tank body is connected to " three mud " pipeline, and do so can save the time of concentration also
Reduce the construction investment of construction project；
2. after the technological requirement of the present invention will filter, the water of 50% is directly discharged into sewage farm, it is not necessary to it is concentrated,
Flocculation, centrifuge dehydration, the most just save original 100% processing cost 50%, such as: if every day " three mud " sewage disposal
Amount is 100 tons, needs concentration, flocculation, centrifuge dehydration, assumes average about 200 plus labour cost in original technological process
Yuan/ton (not including the body refuse processing cost after centrifuge dehydration), then now only need 100 yuan/ton, reduce by 50% be processed into
This.
Detailed description of the invention
A kind of petroleum and petrochemical industry oily sludge Resource comprehensive utilization method, it is as follows that the method processes step；
The first step, adds composite demulsification desulfurizing agent in pretreated mud, after mix homogeneously, adds chemical catalysis
Oxidation diluent, and stir strengthening physical dispersion；
Second step, adds oil sludge elution agent, and steam heat and keeps temperature to be 30-40 DEG C and carries out one-level greasy filth separation, general
One-level greasy filth separates the oil slick produced and reclaims stand-by；
3rd step, in the mud produce added the separation of one-level greasy filth again oil sludge elution agent and carries out two grades of greasy filth separation, will
Two grades of greasy filth separate the oil slick produced and reclaim stand-by；
4th step, added two grades of greasy filth flocculation flocculation aid and carries out three grades of precipitation purified treatment, precipitation in the mud separate
It is stand-by that supernatant top layer oil skims recovery, the water section circulating and recovering after oil skimming, and residue water pump send Love psychology station, lower sediment
Residual body refuse be centrifuged dehydration, be dehydrated residual mud after radio-frequency electromagnetic energy mummification is harmless, outer running recycling.
Mud in greasy filth concentration basin and activated sludge concentration basin is pumped in mediation storage tank, according to the quality of mud Yu water
After ratio is the dilution proportion of 1: 2, stirring mixing is quenched.
In the first step, described composite demulsification, the 2-5% that addition is sludge quality of desulfurizing agent, at speed of agitator 148
Rev/min, the time be mix homogeneously under conditions of 1-3 hour；
Described physical dispersion system uses high shear circulating pump to disperse mud.
In the first step, described chemical catalytic oxidation diluent is complexed surfactant；
Wherein, when mud oil content is more than 10%, it is main with hydrophilic surfactant active；Mud oil content is less than 5%
Time, it is main with lipophilic surfactant, when mud oil content is 5-10%, hydrophilic surfactant active and lipophilic surface live
Property agent according to mass ratio 1: 1 add.
In second step, adding the 2-5% that amount is sludge quality of oil sludge elution agent, the process time is 0.5-2 hour.
In the third step, described in add oil sludge elution agent is sludge quality 2%, heating maintain temperature 30～40
℃；During to oil content more than 10%, separately add the oxidation dispersion diluent strengthening removing oil that quality is mud 1-2%.
One-level greasy filth is separated, two grades of greasy filth separate and three grades purify precipitation top layer liquid level and skim the oil slick of recovery and deposit in the lump
Enter Oil Recovery case, regular back mixing factory freshening finished fuel.
Application implementation case of the present invention is as follows
Embodiment 1: to China four elephant hunt, exploit, collect defeated ground sludge and process,
Oil field prospecting, exploit, collect defeated ground sludge and have various, bank up due to how outdoor again, the many cakings of greasy filth and
It is difficult to crush；In addition, ground sludge is mixed with a large amount of plastic bag, straw, useless glove, cotton yarn, rope sling, iron block, stone, gravel
With the foreign material such as dead twigs and withered leaves, its complicated components, mostly need first fragment, sorting remove impurity, add water and dissolve the pretreatment being modulated into mud,
Through the comprehensive utilization of resources of this pretreated oily sludge, using this method treatment scale is 20 ton day, and it processes step
It is:
The first step, adds composite demulsification desulfurizing agent in pretreated mud, after mix homogeneously, adds chemical catalysis
Oxidation diluent, and carry out physical dispersion；In the present embodiment, described chemical catalytic oxidation diluent；Initially with compound broken
Newborn desulfurizing agent carries out breakdown of emulsion to greasy filth, reduces oil and water, oil and the dynamic tension at mud interface, the gathering of acceleration oil droplet, thus handle
Oil is separated from greasy filth and water；Then add ozone, utilize its hydroxyl produced to destroy bacteria wall and the molecule of malodorant
Structure, reaches broad-spectrum sterilization and removes foul smell effect in greasy filth；
Second step, adds oil sludge elution agent, and steam heat and keeps temperature to be about 40 DEG C and carries out one-level greasy filth separation, general
One-level greasy filth separates the oil slick produced and reclaims stand-by；
3rd step, added oil sludge elution agent and carries out two grades of greasy filth separation, by two in the mud separation of one-level greasy filth produced
Level greasy filth separates the oil slick produced and reclaims stand-by；By the strong permeability of high-efficiency oil sludge eluant and dilution dispersibility, the most significantly
Reduce oil surface tension, reduce the absorption affinity of oil and mud；
Two grades of greasy filth are separated the mud produced and carry out three grades of purified treatment by the 4th step, i.e. add flocculant and go forward side by side circulation of qi promoting
Floating process, oil slick reclaims stand-by, and the body refuse that three grades of purified treatment produce carries out muddy water precipitation, the supernatant produced after muddy water precipitation
Liquid enters sewage-treatment plant, and the mud produced after precipitation is centrifuged dehydration, then penetrates the mud after centrifuge dehydration
Frequently transport outward after electromagnetic energy mummification, as the money making the different purposes such as unburned road brick, contaminated soil remediation or compoiste fertilizer processed
Source utilizes material.
The present invention processes the Resource comprehensive utilization method landing oily sludge in oil field, comprises the following steps:
Mud in greasy filth concentration basin and sludge concentration tank is pumped in mediation storage tank, according to the mass ratio of mud with water be
After the ratio dilute of 1: 2-3, uniform stirring, mix quenched.
In the first step, the addition of described composite demulsification desulfurizing agent is about the 1-3% of sludge quality, at speed of agitator
148 revs/min, the time be mix homogeneously under conditions of 1 hour；
Described physical dispersion uses high shear circulating pump to disperse mud.
In the first step, described chemical catalytic oxidation diluent is surfactant, wherein, when mud oil content is more than
When 10%, use hydrophilic surfactant active；When mud oil content is less than 5%, with lipophilic surfactant, mud oil content is
During 5-10%, hydrophilic surfactant active and lipophilic surfactant add according to mass ratio 1: 1.
In second step, addition is sludge quality the 5% of the oil sludge elution agent of addition, the process time is 1 hour.
In the third step, described in add quality is sludge quality the 2% of oil sludge elution agent, heating maintenance is held temperature and is existed
30 DEG C, when oil content is more than 10%, then add the oxidation dispersant removing oil that quality is sludge quantity 2%.
The oil slick of the separation of one-level greasy filth, two grades of greasy filth separation and three grades of purified treatment is stored in Oil Recovery case, then through returning
Refining is directly made finished fuel and is utilized or sell after purifying.
Use the method once ground sludge or tank bottoms to regional multiple oil fields such as China northeast, North China respectively in 2010
Greasy filth carries out technique application process on the 20 plant-scale devices of ton per day, and its treatment effect all reaches national environmental protection regulation
Agricultural sludge pollutant limit value controls standard and municipal sludge discharge standard and Ministry of Construction's industry standard.In residual mud after process
The oil content of (mg/kg dewatered sludge), friendship country identification third party's qualification unit: GuangZhou, China analyzes inspection center's detection, the most only
The test results report of Daqing oil field oily sludge is added up and invests table 1, use the reality that Sludge in Oilfields is processed by this method
Border application brief introduction: use the inventive method, in 2010 successively to Daqing oil field oil sludge of tertiary recovery, Shengli Oil Field ground sludge, Ji
East ageing oil in oil filed mud (accumulating for many years), the oil storage tank bed mud in prolongation oil field have carried out plant-scale innoxious, resource respectively
Change processes.These four oil field respective greasy filth features and mineral oil content be:
1, Daqing oil field recovers the oil three greasy filth features: mud thickness, few containing solid impurity, sandstone is fine, water content is bigger
And muddiness is creamy white.Its component: solid particle 27%, water 30%, oil content are 43%；
2, Shengli Oil Field greasy filth feature: from the ground sludge of Shengli Oil Field, owing to stacking throughout the year, greasy filth lumpd and
It is difficult to crush.In addition, greasy filth is mixed with substantial amounts of plastic bag, straw, useless glove, cotton yarn, rope sling, iron block, dead twigs and withered leaves etc.
Impurity.The oil content 12.56% of greasy filth.
3, NW Hebei greasy filth feature: greasy filth is containing substantial amounts of antiseepage cloth, plastic bag, drilling mud, straw, useless glove, cotton
Yarn, rope sling, iron block, dead twigs and withered leaves, building waste (stone, cement block), house refuse.Actual can be referred to as " oil garbage
Heap ".The oil content 4% of crude oil mud.
4, oil field mud feature is extended: for oil storage tank bottom oil sludge, little containing solid impurity, sandstone is fine. water content is bigger.
The front greasy filth oil content of process is 45%, solid particle 30%, water 25%.Four above-mentioned ground greasy filth after treatment, all reach country
Agricultural sludge pollutant limit value controls standard and municipal sludge discharge standard and Ministry of Construction's industry standard.Its result refers to table
1.
Residual mud oil content testing result (mg/kg dewatered sludge) after table 1. 4 elephant greasy filth is treated by the present method
As known from Table 1, use this method to the oily sludge of Daqing oil field three stope, Shengli Oil Field ground sludge, Ji Dong
Ageing oil in oil filed mud, extend Petroleum Group the oil recovery factory that pacifies the border region, etc. greasy filth complete day process 20 tons of greasy filth scales industry
The process of complete set of equipments runs reality, the result of the ground sludge (the aging greasy filth containing accumulating for many years) producing oil recovery factory
Show there is through trust third party the detection of " GuangZhou, China analyzes inspection center " authoritative department of national qualification, process greasy filth
Its residua content of the silt of rear discharge is between 0.08-0.13%, all far below national regulation " agricultural sludge pollutant catabolic gene mark
The standard of accurate (BG4284-84) mineral oil in fluid content 0.3mg/kg, the process water during oil-sludge treatment removes can reuse part
Outward, residue water also reaches the existing national standards of oil industry wastewater discharge.
Embodiment 2: oily sludge comprehensive utilization of resources project at the bottom of refinery company of CNOOC Sewage Plant three mud and oil storage tank
Year, treatment scale was 4500 tons/year, and " three mud " oil content 10% is counted；Process object: based on " three mud ", also include that refinery produces
Oil storage tank bottom oil sludge in the dregs of fat, other greasy filth and factory that line produces.
Employing this method processes, and comprises the following steps:
The first step, adds composite demulsification desulfurizing agent in pretreated mud, after mix homogeneously, adds chemical catalysis
Oxidation diluent, and carry out physical dispersion；In the present embodiment, described chemical catalytic oxidation diluent is ozone；First adopt
With composite demulsification desulfurizing agent, greasy filth is carried out breakdown of emulsion, reduce oil and water, oil and the dynamic tension at mud interface, accelerate the poly-of oil droplet
Collection, thus oil is separated from greasy filth and water；Then add ozone, utilize it to destroy the molecule of antibacterial and malodorant knot
Structure, reaches to remove foul smell and broad-spectrum sterilization effect in greasy filth；
Second step, is subsequently adding oil sludge elution agent, and steam heats and keeps temperature to be 30 degrees Celsius and carries out one-level greasy filth and divide
From, one-level greasy filth is separated the oil slick produced and reclaims stand-by；
3rd step, added oil sludge elution agent and carries out two grades of greasy filth separation, by two in the mud separation of one-level greasy filth produced
Level greasy filth separates the oil slick produced and reclaims stand-by；Oil sludge elution agent is by the strong permeability of high-efficiency oil sludge eluant and dilution dispersion
Property, it is greatly reduced again oil surface tension, reduces the absorption affinity of oil and mud；
Two grades of greasy filth are separated the mud produced and carry out three grades of purified treatment by the 4th step, i.e. add flocculant and go forward side by side circulation of qi promoting
Floating process, oil slick reclaims stand-by, and the body refuse that three grades of purified treatment produce is carried out muddy water precipitation, will produce after muddy water precipitates
Supernatant enter sewage-treatment plant, after precipitation produce mud be centrifuged dehydration, then to the mud after centrifuge dehydration
Carry out electromagnetic energy ion mummification to be dehydrated again, then transport outward.As making unburned road brick, contaminated soil remediation or compoiste fertilizer processed
Recycling material Deng different purposes.
Described disposal of oily sludge comprises the following steps:
Mud in greasy filth concentration basin and sludge concentration tank is pumped in mediation storage tank, according to the mass ratio of mud with water be
After the ratio of 1: 2 adds dilution, stir, mix quenched.
In the first step, addition is sludge quality the 5% of described composite demulsification desulfurizing agent, speed of agitator 148 turns/
Divide, the time is mix homogeneously under conditions of 2 hours；
Described physical dispersion uses high shear circulating pump to disperse mud.
In the first step, described chemical catalytic oxidation diluent is surfactant, wherein, when mud oil content is more than
When 10%, use hydrophilic surfactant active；When mud oil content is less than 5%, with lipophilic surfactant, mud oil content is
During 5-10%, hydrophilic surfactant active and lipophilic surfactant add according to mass ratio 1: 1.
In second step, addition is sludge quality the 2% of the oil sludge elution agent of addition, the process time is 2 hours.
In the third step, described in add quality is sludge quality the 2% of oil sludge elution agent, heating maintenance is held temperature and is existed
35 DEG C, when oil content is more than 10%, adds the oxidation dispersant that quality is mud mud 2% and deoil.
The oil slick of the separation of one-level greasy filth, two grades of greasy filth separation and three grades of purified treatment recovery is stored in Oil Recovery case, warp
Freshening purifies, and can directly make finished fuel and utilize.
100,000 tons of scale oil-containings of refinery company of embodiment 3:2014 CNOOC Sewage Plant " three mud "+oil storage tank bed mud year
The comprehensive utilization of resources project of mud, comprises the following steps:
The first step, adds composite demulsification desulfurizing agent in pretreated mud, after mix homogeneously, adds chemical catalysis
Oxidation diluent, and carry out physical dispersion；In the present embodiment, described chemical catalytic oxidation diluent is ozone；First adopt
With composite demulsification desulfurizing agent, greasy filth is carried out breakdown of emulsion, reduce oil and water, oil and the dynamic tension at mud interface, accelerate the poly-of oil droplet
Collection, thus oil is separated from greasy filth and water；Then add ozone, utilize it to destroy the molecule of antibacterial and malodorant knot
Structure, reaches to remove foul smell and broad-spectrum sterilization effect in greasy filth；
Second step, is subsequently adding oil sludge elution agent, and steam heats and keeps temperature to be 35 degrees Celsius and carries out one-level greasy filth and divide
From, one-level greasy filth is separated the oil slick produced and reclaims stand-by；
3rd step, added oil sludge elution agent and carries out two grades of greasy filth separation, by two in the mud separation of one-level greasy filth produced
Level greasy filth separates the oil slick produced and reclaims stand-by；Oil sludge elution agent is by the strong permeability of high-efficiency oil sludge eluant and dilution dispersion
Property, it is greatly reduced again oil surface tension, reduces the absorption affinity of oil and mud；
Two grades of greasy filth are separated the mud produced and carry out three grades of purified treatment by the 4th step, i.e. add flocculant and go forward side by side circulation of qi promoting
Floating process, oil slick reclaims stand-by, and the body refuse that three grades of purified treatment produce is carried out muddy water precipitation, will produce after muddy water precipitates
Supernatant enter sewage-treatment plant, after precipitation produce mud be centrifuged dehydration, then to the mud after centrifuge dehydration
Carry out electromagnetic energy ion mummification to be dehydrated again, then transport outward.As making unburned road brick, contaminated soil remediation or compoiste fertilizer processed
Recycling material Deng different purposes.
Innoxious mud after Treatment of Sludge is used as pavior brick filler, and filling mixture ratio is rubble powder 70%, the residual mud of mummification
20%, cement 10%, after stirring mixing, non-baking brick machine compacting air-dry, its finished product pavior brick is limited through the detection of Shenzhen too section
Company's (Minstry of Housing and Urban-Rural Development of People Republic of China (MOHURD), Department of Construction of Guangdong Province etc. check and approve third party's " without damaging detection responsibility contracts on specialities first-class enterprise qualification ") inspection
Survey, as table 2 data show, reach country's building material industry (concrete road pavement brick JC/T446-2000) CC30 pavior brick standard, real
Existing twice laid and the purpose of zero-emission.
Table 2 utilizes removing oil " residual mud " to be pressed into pavior brick comprcssive strength detection data and standard control table
Described sludge pretreatment comprises the following steps:
Mud in greasy filth concentration basin and sludge concentration tank is pumped in mediation storage tank, according to the mass ratio of mud with water be
After the ratio of 1: 2 adds dilution, stir, mix quenched.
In the first step, addition is sludge quality the 5% of described composite demulsification desulfurizing agent, speed of agitator 148 turns/
Divide, the time is mix homogeneously under conditions of 1 hour；
Described physical dispersion uses high shear circulating pump to disperse mud.
In the first step, described chemical catalytic oxidation diluent is surfactant, wherein, when mud oil content is more than
When 10%, use hydrophilic surfactant active；When mud oil content is less than 5%, with lipophilic surfactant, mud oil content is
During 5-10%, hydrophilic surfactant active and lipophilic surfactant add according to mass ratio 1: 1.
In second step, addition is sludge quality the 3.5% of the oil sludge elution agent of addition, the process time is 0.5 little
Time.
In the third step, described in add quality is sludge quality the 2% of oil sludge elution agent, heating maintenance is held temperature and is existed
40 DEG C, when oil content is more than 10%, adds the oxidation dispersant that quality is mud mud 2% and deoil.
The oil slick of the separation of one-level greasy filth, two grades of greasy filth separation and three grades of purified treatment recovery is stored in Oil Recovery case, warp
Freshening purifies, and directly obtains finished fuel and utilizes or export trade.
The present invention does not invests substantial contribution and builds concentration basin, is only mounted with the holding vessel of supporting capacity, designs in tank body
Nutsch filter capable of washing is installed and is just docked to " three mud " pipeline, so save the time of concentration and decrease the investment of construction retrofit
Expense；
The technological requirement of the present invention will filter after 50% water be directly discharged into sewage farm, it is not necessary to its concentrate, wadding
Solidifying, centrifuge dehydration, the most just save original 100% processing cost 50%.
Use two-stage low temperature (≤40 DEG C) energy-conservation elution technique, it is achieved " mineral oil " being floated is collected with mud high efficiency separation
Rear freshening, the flocculation mud after removing oil, water, purify precipitation and the dehydration of efficient horizontal screw centrifuge through the third level, water--it is pumped up back
Be in harmonious proportion storage tank to newly entering oil-containing " three mud " quenched water filling reuse；" the residual body refuse " filtered after Intelligent electromagnetic energy mummification, as
Make the recycling material of the different purposes such as unburned road brick, contaminated soil remediation or compoiste fertilizer processed.
In sum: this process is invented, start to produce mainly for during oil field prospecting, exploitation and crude oil transmission
Greasy filth (husky) environmental pollution lighten the burden process technique up to standard and design, and by laboratory lab scale, popularization test and
20 ton per day commercial scale gasifying devices to domestic four elephants new/OW ground sludge, oil storage tank bottom oil sludge and deposit through for many years
Outmoded heavy oil mud etc. process, all achieve preferable experimental result.It was able to later and Zhong Hai oil refining company limited
Branch company cooperates, and utilizes the commercial scale plant of 20 ton per days at that time, jointly tests and to device appropriate reconstruction, and joint development is used
Process in Love psychology field " three mud " and refinery " tank bottom oil sludge ", feasible as the commercial scale that can realize " three change " target process
Property processing means, make joint efforts through both sides, finally achieve now stable operation a year and a half the most, year treatment scale 100,000 tons/
The large-scale plant in year.
Ground sludges all kinds of to China's oil petrochemical industry, associating production station collect reservoir greasy filth, oil storage tank bottom oil sludge, former
The oily sludge etc. that the oil defeated reservoir of refining/product oil collection produces with tank bottom oil sludge, Oil application and accident processes, and all can generally fit
Outfit.
Although technical scheme having been done the most detailed elaboration and citing, it will be appreciated that for ability
For field technique personnel, above-described embodiment being made amendment or uses the replacement scheme of equivalent, this is to those skilled in the art
It is it is clear that these modifications or improvements without departing from theon the basis of the spirit of the present invention for Yuan, belongs to the present invention
Claimed scope.
Claims (7)
1. a petroleum and petrochemical industry oily sludge Resource comprehensive utilization method, it is characterised in that: it is as follows that the method processes step:
The first step, adds composite demulsification desulfurizing agent in pretreated mud, after mix homogeneously, adds chemical catalytic oxidation
Diluent, and stir strengthening physical dispersion；
Second step, adds oil sludge elution agent, and steam heats and keeps temperature to be 30-40 DEG C and carries out one-level greasy filth separation, by one-level
Greasy filth separates the oil slick produced and reclaims stand-by；
3rd step, in the mud produce added the separation of one-level greasy filth again oil sludge elution agent and carries out two grades of greasy filth separation, by two grades
Greasy filth separates the oil slick produced and reclaims stand-by；
4th step, added two grades of greasy filth flocculation flocculation aid and carries out three grades of precipitation purified treatment, precipitate supernatant in the mud separate
It is stand-by that liquid top layer oil skims recovery, water section circulating and recovering after oil skimming, and residue water pump send Love psychology station, lower sediment residual
Body refuse is centrifuged dehydration, is dehydrated residual mud after radio-frequency electromagnetic energy mummification is harmless, outer running recycling.
A kind of petroleum and petrochemical industry oily sludge Resource comprehensive utilization method the most according to claim 1, it is characterised in that described
Pretreatment comprises the following steps: pumped into by the mud in greasy filth concentration basin and activated sludge concentration basin in mediation storage tank, according to dirt
After the dilution proportion that mass ratio is 1: 2 of mud and water, stirring mixing is quenched.
Petroleum and petrochemical industry oily sludge Resource comprehensive utilization method the most according to claim 1, it is characterised in that: in the first step
In, described composite demulsification, the 2-5% that addition is sludge quality of desulfurizing agent, be 1-3 in speed of agitator 148 revs/min, time
Mix homogeneously under conditions of hour；
Described physical dispersion system uses high shear circulating pump to disperse mud.
Petroleum and petrochemical industry oily sludge Resource comprehensive utilization method the most according to claim 1, it is characterised in that: in the first step
In, described chemical catalytic oxidation diluent is complexed surfactant；
Wherein, when mud oil content is more than 10%, it is main with hydrophilic surfactant active；When mud oil content is less than 5%, use
Lipophilic surfactant is main；When mud oil content is 5-10%, hydrophilic surfactant active and lipophilic surfactant
Add according to mass ratio 1: 1.
Petroleum and petrochemical industry oily sludge Resource comprehensive utilization method the most according to claim 1, it is characterised in that: at second step
In, adding the 2-5% that amount is sludge quality of oil sludge elution agent, the process time is 0.5-2 hour.
Petroleum and petrochemical industry oily sludge Resource comprehensive utilization method the most according to claim 1, it is characterised in that: in the 3rd step
In, described in add oil sludge elution agent is sludge quality 2%, heating maintain temperature at 30～40 DEG C；Oil content is more than
When 10%, separately add the oxidation dispersion diluent strengthening removing oil that quality is mud 1-2%.
Petroleum and petrochemical industry oily sludge Resource comprehensive utilization method the most according to claim 1, it is characterised in that: by primary oil
Mud separates, two grades of greasy filth separates and three grades purify precipitation top layer liquid level and skim the oil slick of recovery and be stored in Oil Recovery case in the lump, fixed
Phase back mixing factory freshening finished fuel.
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| CN107235618A (en) * | 2017-05-16 | 2017-10-10 | 方明环保科技(漳州)有限公司 | Sludge in Oilfields recycling processing method and equipment |
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| CN113307596A (en) * | 2021-06-28 | 2021-08-27 | 西南石油大学 | Method for preparing baking-free brick from offshore drilling waste mud |
| CN113909261A (en) * | 2021-11-15 | 2022-01-11 | 长沙理工大学 | Resource utilization method of dewatered dredging bottom mud |
| CN115893778A (en) * | 2022-10-27 | 2023-04-04 | 中石化石油工程技术服务有限公司 | Sludge treatment system, application thereof and oil field tank bottom sludge treatment method |
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