CN113955908A - Oil-containing resource treatment method - Google Patents

Oil-containing resource treatment method Download PDF

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Publication number
CN113955908A
CN113955908A CN202111094874.4A CN202111094874A CN113955908A CN 113955908 A CN113955908 A CN 113955908A CN 202111094874 A CN202111094874 A CN 202111094874A CN 113955908 A CN113955908 A CN 113955908A
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oil
sludge
gas
moving bed
oil sludge
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肖进彬
张璐璐
方玉美
刘振
聂宁
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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
    • C02F11/00—Treatment of sludge; Devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84—Biological processes
    • 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
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological 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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • 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
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The application relates to a method for oil-containing resource treatment, which comprises the following steps: dehydrating and granulating the oil sludge to obtain oil sludge particles; conveying the oil sludge into a rotary moving bed; burning gas to generate hot gas flow, deoxidizing with deoxidant and feeding to rotary moving bed; the oil sludge particles are contacted with hot air flow in the rotary moving bed, and oil in the oil sludge is volatilized at a certain temperature and is carried out of the rotary moving bed by the air flow; mixing the residue after deoiling the oil sludge with the discharged ineffective material in the biological waste purifier and the residual sludge in the sewage biochemical treatment device and processing the mixture into a soil ecological regulator; the hot air flow carries oil gas to be cooled by a cooler and then is separated into gas phase and liquid phase, the liquid is separated into oil and waste water by an oil-water separator, the oil enters an oil tank for storage, and the waste water enters a sewage biochemical treatment device for treatment and then is discharged. The method provided by the application can be used for treating the oil sludge on a large scale to obtain the soil ecological regulation material and oil, so that waste water and waste gas are realized, and the oil sludge is recycled.

Description

Oil-containing resource treatment method
Technical Field
The application belongs to the technical field of waste recycling treatment, and particularly relates to a method for recycling treatment of oil.
Background
The oil sludge is solid waste in oil sludge generated in the processes of oil exploitation, oil refining, oil liquefaction, coal chemical industry and oil tank cleaning, the main components of the oil sludge are mineral oil, oil or hydrocarbon in the chemical production process, water and silt, the oil sludge has high silt content, the oil has complex components, contains various toxic and harmful compounds, heavy metals and the like, is a special dangerous waste, can generate potential harm to ecological environment and human health if not properly treated, and has the characteristics of concealment, hysteresis, accumulation, synergy, continuity and the like.
At present, the treatment method of the oil sludge mainly comprises high-temperature incineration, thermal cracking and the like, harmful gas and toxic wastewater can be generated by the incineration and the thermal cracking, the recovery rate of oil in the oil sludge is lower than 50%, the pollution of the oil sludge cannot be fundamentally overcome, and resources are wasted. The oil sludge is recycled, the potential risk of the oil sludge is eliminated, and the method has important economic and social benefits.
Disclosure of Invention
In view of the above, the present application aims to provide a method for recycling oil, which can be used for large-scale preparation of soil ecological conditioning materials, has a high recovery rate of oil in oil sludge, has a low content of harmful substances after wastewater and waste gas treatment, and can be discharged cleanly.
In order to achieve the purpose of the invention, the application provides the following technical scheme:
dehydrating and granulating the oil sludge to obtain oil sludge particles;
conveying the sludge into a rotating moving bed; burning gas to generate hot gas flow, deoxidizing with deoxidant and feeding to rotary moving bed; the deoxidizer is a mixture of carbon and oil sludge extraction residues;
contacting the oil sludge particles with hot air in a rotary moving bed, volatilizing oil in the oil sludge at a certain temperature and carrying the oil out of the rotary moving bed by the air flow, wherein the temperature is 100-500 ℃;
mixing the residue after deoiling the oil sludge with the discharged failure material in the biological waste purifier and the residual sludge in the sewage biochemical treatment device and processing the mixture into a soil ecological regulator;
the hot air flow carries oil gas to be cooled by a cooler and then is separated into a gas phase and a liquid phase, the gas enters a biological waste gas purifier for purification and then is discharged, the liquid is separated into oil and waste water by an oil-water separator, the oil enters an oil tank for storage, and the waste water enters a sewage biochemical treatment device for treatment and then is discharged;
preferably, the oil sludge is one or more of oil sludge generated in oil exploitation, oil refining, oil greasing, coal chemical industry and oil tank cleaning processes.
Preferably, the oil content of the oil sludge is greater than 5%.
Preferably, the fuel gas is natural gas, liquefied gas or biomass fuel gas.
Preferably, the deoxidizer is a mixture of carbon and sludge extraction residues;
preferably, the oxygen content in the hot gas stream is < 2%;
preferably, the rotary moving bed is a rotatable cylindrical device, and the rotating speed is 0-50 circles/minute
Preferably, in the rotary moving bed, the contact temperature of hot air flow and particles is 100-500 ℃; .
In the preferred rotary moving bed, the contact temperature time of hot air flow and particles is 0.5-2 hours;
preferably, the waste gas purification device is a biological waste gas purifier;
preferably, after the waste gas is purified, the content of sulfur dioxide is less than 100ppm, and the content of nitrogen oxide is less than 50 ppm;
preferably, the wastewater purification device is a wastewater biochemical treatment device:
preferably, after the wastewater is purified, the COD is less than 50ppm, and the ammonia nitrogen content is less than 10 ppm;
preferably, the oil recovery in the sludge is > 75%.
Preferably, the soil ecological regulator is prepared by mixing and processing the ineffective materials discharged from the sludge residue biological waste purifier and the residual sludge in the sewage biochemical treatment device.
Drawings
FIG. 1 is a flow chart of a method of oil-containing resource treatment provided herein;
Detailed Description
The application provides a method for oil-containing resource treatment, which comprises the following steps:
in order to achieve the purpose of the invention, the application provides the following technical scheme:
in the application, the oil sludge is dehydrated and granulated to obtain oil sludge particles;
conveying the sludge into a rotating moving bed; burning gas to generate hot gas flow, deoxidizing with deoxidant and feeding to rotary moving bed; the deoxidizer is a mixture of carbon and oil sludge extraction residues;
contacting the oil sludge particles with hot air in a rotary moving bed, volatilizing oil in the oil sludge at a certain temperature and carrying the oil out of the rotary moving bed by the air flow, wherein the temperature is 100-500 ℃;
mixing the residue after deoiling the oil sludge with the discharged failure material in the biological waste purifier and the residual sludge in the sewage biochemical treatment device and processing the mixture into a soil ecological regulator;
the hot air flow carries oil gas to be cooled by a cooler and then is separated into a gas phase and a liquid phase, the gas enters a biological waste gas purifier for purification and then is discharged, the liquid is separated into oil and waste water by an oil-water separator, the oil enters an oil tank for storage, and the waste water enters a sewage biochemical treatment device for treatment and then is discharged;
fig. 1 is a flowchart of a method for recycling oil-containing resources provided by the present application, and the method for recycling oil-containing resources provided by the present application is described in detail below with reference to fig. 1.
In the present application, the components are commercially available products well known to those skilled in the art unless otherwise specified.
In the application, the oil sludge is one or more of oil sludge generated in the processes of oil exploitation, oil refining, oil greasing, coal chemical industry and oil tank cleaning.
In the application, the oil sludge is dehydrated and granulated, and the obtained oil sludge particles are preferably 0.5-2 cm;
in this application, the sludge is transported into a rotating moving bed; burning gas to generate hot gas flow, deoxidizing with deoxidant and feeding to rotary moving bed; the deoxidizer is a mixture of carbon and oil sludge extraction residues;
in the application, the oil sludge particles are contacted with hot air in the rotary moving bed, oil in the oil sludge is volatilized at a certain temperature and is carried out of the rotary moving bed by the air flow, and the temperature is 100-500 ℃, and more preferably 300-500 ℃;
in the present application, the hot gas stream contains < 2% oxygen, more preferably < 1%;
in the present application, the rotating moving bed is a rotatable cylindrical device, and the rotating speed is 0 to 50 circles/minute, and more preferably 25 to 40 circles.
In the application, the contact temperature time of the hot air flow and the particles is 0.5-2 hours, and more preferably 1-1.5 hours;
in the application, after the waste gas is purified, the content of sulfur dioxide is less than 100ppm, and the content of nitrogen oxide is less than 50 ppm;
in the application, after the wastewater is purified, the COD is less than 50ppm, and the ammonia nitrogen content is less than 10 ppm;
in the present application, the oil recovery in the sludge is > 75%, preferably > 80%;
in the application, the mixture of carbon and oil sludge extraction residue is used for preparing the deoxidizer;
in the application, the residue after deoiling of the oil sludge is mixed with the failure material discharged from the biological waste purifier and the residual sludge in the sewage biochemical treatment device and processed into the soil ecological regulator.
For further explanation of the present application, the following examples are provided to describe in detail a method for recycling oil-containing materials, but they should not be construed as limiting the scope of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1
Drying and dehydrating 30% of oil content and 30% of water content of oil sludge produced in Liaohe oilfield oil exploitation until the water content is 10%, and granulating to obtain particles with particle size within the range of 1-2 cm;
burning the liquefied gas to obtain hot gas flow, and carrying out mixed deoxidization by using 60 percent of carbon and 40 percent of oil sludge residue, wherein the oxygen content in the hot gas flow is 1 percent, and the temperature is 400 ℃;
sending oil sludge particles into a rotary moving bed by using a conveying device, sending hot air into the rotary moving bed to contact with the oil sludge particles, and selecting a moving bed with a rotating speed of 25 circles/minute for 1 hour when the hot air is in contact with the oil sludge particles;
the obtained residue accounts for 35 percent, the oil yield is 81 percent, the sulfur dioxide content is 70ppm and the nitrogen oxide content is 40ppm after the waste gas is purified, the COD is less than 30ppm and the ammonia nitrogen content is 50ppm after the waste water is purified.
Example 2
Drying and dehydrating oil sludge produced in the exploitation of the Nanyang Tanghe oil field until the oil content of the oil sludge is 10% and the water content of the oil sludge is 55% until the water content of the oil sludge is 10%, and granulating to obtain particles with the particle size of 0.5-2 cm;
burning the liquefied gas to obtain hot gas flow, and carrying out mixed deoxidization by using 80% of carbon and 20% of oil sludge residue, wherein the oxygen content in the hot gas flow is 1%, and the temperature is 350 ℃;
sending oil sludge particles into a rotary moving bed by using a conveying device, sending hot air into the rotary moving bed to contact with the oil sludge particles, selecting the rotating speed of the moving bed to be 15 circles/minute, and the contact time of the hot air and the oil sludge particles to be 0.5 hour;
the obtained residue accounts for 38 percent, the oil yield is 76 percent, the sulfur dioxide content is 60ppm and the nitrogen oxide content is 50ppm after the waste gas is purified, the COD is less than 50ppm and the ammonia nitrogen content is 30ppm after the waste water is purified.
Example 3
Drying and dehydrating oil sludge produced by exploiting an original oilfield, wherein the oil content of the oil sludge is 20% and the water content of the oil sludge is 45% until the water content is 10%, and granulating to obtain particles with the particle size of 0.5-1.5 cm;
burning the liquefied gas to obtain hot gas flow, and carrying out mixed deoxidization by using 90% of carbon and 10% of oil sludge residue, wherein the oxygen content in the hot gas flow is 1%, and the temperature is 450 ℃;
sending oil sludge particles into a rotary moving bed by using a conveying device, sending hot air into the rotary moving bed to contact with the oil sludge particles, and selecting the rotating speed of the moving bed to be 50 circles/minute, wherein the contact time of the hot air and the oil sludge particles is 0.5 hour;
the obtained residue accounts for 36 percent, the oil yield is 76 percent, the sulfur dioxide content is 80ppm and the nitrogen oxide content is 30ppm after the waste gas is purified, the COD is less than 35ppm and the ammonia nitrogen content is 20ppm after the waste water is purified.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims (15)

1. The method for recycling the oil-containing resource is characterized by comprising the following steps of:
(1) dehydrating and granulating the oil sludge to obtain oil sludge particles;
(2) conveying the oily sludge particles into a rotating moving bed;
(3) burning gas to generate hot gas flow, deoxidizing with deoxidant and feeding to rotary moving bed; the deoxidizer is a mixture of carbon and oil sludge extraction residues;
(4) contacting the oil sludge particles with hot air in a rotary moving bed, volatilizing oil in the oil sludge at a certain temperature and carrying the oil out of the rotary moving bed by the air flow, wherein the temperature is 100-500 ℃;
(5) mixing the residue after deoiling the oil sludge with the discharged failure material in the biological waste purifier and the residual sludge in the sewage biochemical treatment device and processing the mixture into a soil ecological regulator;
(6) the hot air flow carries oil gas to be cooled by a cooler and then separated into gas phase and liquid phase, the gas enters a waste gas purification device to be purified and then discharged, the liquid is separated into oil and waste water by an oil-water separator, the oil enters an oil tank to be stored, and the waste water enters a waste water purification device to be treated and then discharged.
2. The method as claimed in claim 1, wherein the oil sludge is one or more of oil sludge produced in oil extraction, oil refining, oil-greasing, coal chemical industry and oil tank cleaning processes.
3. A method as claimed in claim 1 or claim 2, wherein the oil sludge is at an oil content of > 5%.
4. The method as claimed in claim 1, wherein the fuel gas is natural gas, liquefied gas or biomass fuel gas.
5. The method as claimed in claim 1, wherein the deoxidizer is a mixture of carbon and sludge extraction residue.
6. The method as claimed in claim 1, wherein the hot gas stream contains < 2% oxygen.
7. The method as claimed in claim 1, wherein the rotating moving bed is a rotatable cylindrical device, and the rotating speed is 0-50 circles/min.
8. The method as claimed in claim 1, wherein the contact temperature of the hot gas flow and the particles in the rotating moving bed is 100-500 ℃.
9. The method as claimed in claim 1, wherein the contact temperature of the hot gas stream and the particles in the rotating moving bed is 0.5-2 hours.
10. The method as claimed in claim 1, wherein the waste gas purifying device is a biological waste gas purifier.
11. The method as claimed in claim 10, wherein the content of sulfur dioxide is less than 100ppm and the content of nitrogen oxide is less than 50ppm after the waste gas is purified.
12. The method of claim 1, wherein the wastewater purification apparatus is a wastewater biochemical treatment apparatus.
13. The method as claimed in claim 11, wherein the COD is less than 50ppm and the content of ammonia nitrogen is less than 10ppm after the wastewater is purified.
14. A method as claimed in claim 1, wherein the recovery of oil from the sludge is > 75%.
15. The method as claimed in claim 1, wherein the soil ecology promoting agent is prepared by mixing and processing the waste materials discharged from the sludge residue biological waste purifier and the excess sludge from the sewage biochemical treatment apparatus.
CN202111094874.4A 2021-09-17 2021-09-17 Oil-containing resource treatment method Pending CN113955908A (en)

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CN109912163A (en) * 2019-02-28 2019-06-21 南京泓远环保科技有限公司 A kind of processing method of oily sludge
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CN102085530A (en) * 2009-12-04 2011-06-08 中国科学院生态环境研究中心 Microbial ecological regulation method for repairing petroleum polluted saline-alkali soil
CN104150974A (en) * 2013-12-31 2014-11-19 南平市烟草公司邵武分公司 Soil conditioner for preventing and treating tobacco bacterial wilt and application thereof
KR101429500B1 (en) * 2014-02-19 2014-08-13 주식회사 오일시티 Green Fuel Production System from Biomass
CN105000767A (en) * 2014-04-18 2015-10-28 环拓科技股份有限公司 Oil mud cracking and polluted soil thermal desorption combination treatment system
CN104876406A (en) * 2015-05-12 2015-09-02 福建省科辉环保工程有限公司 Deep recycling process and system for oily sludge
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CN107055989A (en) * 2017-01-25 2017-08-18 浙江宜可欧环保科技有限公司 A kind of handling process of oily sludge
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