CN114132987A - Method for removing sulfide in oil field sewage by high-energy electron beam - Google Patents
Method for removing sulfide in oil field sewage by high-energy electron beam Download PDFInfo
- Publication number
- CN114132987A CN114132987A CN202111411605.6A CN202111411605A CN114132987A CN 114132987 A CN114132987 A CN 114132987A CN 202111411605 A CN202111411605 A CN 202111411605A CN 114132987 A CN114132987 A CN 114132987A
- Authority
- CN
- China
- Prior art keywords
- sewage
- electron beam
- concentration
- irradiation
- oil field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 82
- 238000010894 electron beam technology Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 25
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title claims abstract description 17
- -1 sulfur ions Chemical class 0.000 claims abstract description 62
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 55
- 239000011593 sulfur Substances 0.000 claims abstract description 55
- 229920000642 polymer Polymers 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 238000010521 absorption reaction Methods 0.000 claims description 37
- 239000012530 fluid Substances 0.000 claims description 15
- 230000004048 modification Effects 0.000 abstract description 5
- 238000012986 modification Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 238000009920 food preservation Methods 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 230000036632 reaction speed Effects 0.000 abstract description 2
- 239000010802 sludge Substances 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 description 32
- 239000003921 oil Substances 0.000 description 25
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 23
- 231100000987 absorbed dose Toxicity 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 4
- 230000003009 desulfurizing effect Effects 0.000 description 4
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 150000004763 sulfides Chemical class 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000001867 hydroperoxy group Chemical group [*]OO[H] 0.000 description 2
- OUUQCZGPVNCOIJ-UHFFFAOYSA-N hydroperoxyl Chemical group O[O] OUUQCZGPVNCOIJ-UHFFFAOYSA-N 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 241000295146 Gallionellaceae Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/305—Treatment of water, waste water, or sewage by irradiation with electrons
-
- 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
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
Landscapes
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- 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)
- Physical Water Treatments (AREA)
Abstract
The invention provides a method for removing sulfide in oil field sewage by adopting high-energy electron beam irradiation treatment, which comprises the following steps: firstly, conveying oilfield sewage to an irradiation chamber containing an electron accelerator; secondly, adopting an electron accelerator to carry out electron beam irradiation; and step three, detecting the concentration of sulfur ions in the irradiated sewage. Has the following advantages: 1) the method is usually carried out at normal temperature and normal pressure, and is convenient to apply; 2) the removal efficiency of the sulfur ions is high, the residence time under the beams is usually less than 1s, and the reaction speed is high; 3) no chemical reagent is needed to be added, the ion concentration and salinity of the oil field sewage are not increased, and secondary pollutants such as sludge and the like are not generated; 4) the electron accelerator is provided with a self-shielding device, has been applied to a plurality of fields such as food preservation, cable modification and the like, and has good safety.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a method for removing sulfides in oil field sewage by adopting a high-energy electron beam.
Background
The oilfield sewage comprises oilfield produced water and fracturing flowback fluid. The fracturing flow-back fluid is sewage generated in petroleum drilling and production fracturing construction operation. The oilfield produced water is sewage generated along with oil production operation. The produced water of the oil field can be divided into polymer-containing sewage and ternary sewage according to the oil displacement mode. At present, most oil fields in China enter the middle and later stages of exploitation, namely a tertiary oil recovery stage. The water content of the produced liquid is up to more than 90 percent, and a large amount of oilfield produced water is generated. For example, the annual amount of ternary sewage generated by Daqing oil fields is as high as 1 million tons (the research on the ternary combination flooding produced water treatment, the chemical engineering progress, 2020, 39 (1): 4238-.
The oil field sewage contains crude oil, organic matters such as flocculating agent and demulsifier, suspended particles such as fine sand, bacteria such as sulfate reducing bacteria, iron bacteria and saprophytic bacteria and Ca2+、Mg2+、S2-Plasma, the composition is very complex. The oil field sewage production amount is large and the pollution degree is high. If the waste water is directly discharged, the environment is seriously polluted, and a large amount of fresh water resources are wasted. Therefore, the oilfield sewage is usually treated by removing crude oil and suspended matters through processes of coagulation sedimentation, filtration and the like, and then treated by adding agents such as bactericides, desulfurizing agents and the like to remove bacteria and sulfur ions, and then used as stratum oil recovery reinjection water again. The removal of sulfide in sewage is one of the key problems to be solved in the oilfield sewage treatment technology.
The sulfide has strong corrosivity to metal, can cause local corrosion or pit candle on the surface of the metal, finally causes perforation problems of equipment pipelines and water injection mineshafts, seriously damages a water injection system and influences the normal production of oil fields. The iron sulfide precipitate formed by corrosion can cause stratum blockage, emulsify stratum crude oil, block oil seepage pore canals and obviously reduce the oil displacement effect by water. Therefore, the national oil and natural industry Standard "clastic rock oil reservoir Water injection quality index and analysis method" (SY/T5329-2012) stipulates that the sulfide content in the oil field sewage can be reduced to below 2mg/L before underground reinjection.
At present, methods for removing sulfides in oilfield sewage include an electrochemical method, a photocatalytic method, a negative pressure extraction method, addition of a desulfurizing agent and the like. The desulfurizing agent is mainly used in practical engineering. The desulfurizing agent can be of an oxidation type (patent document 1), a precipitation type and an adsorption type (patent document 2), respectively, according to the principle of removing sulfur ions. The electrochemical and photocatalytic methods have high energy consumption and complex equipment; the added desulfurizer not only has higher cost, but also increases the salt content of the reinjection water, and influences the quality of the reinjection water. Therefore, a simple and efficient method for removing sulfide from oilfield wastewater is urgently needed.
Documents of the prior art
Patent document 1: 111825248A
Patent document 2: CN 110564394A
Disclosure of Invention
The invention aims to provide a method for simply and efficiently removing sulfides in oil field sewage by adopting high-energy electron beam irradiation.
In order to solve the technical problem, the invention provides a method for removing sulfide in oil field sewage by adopting high-energy electron beam irradiation treatment, which comprises the following steps:
firstly, conveying oilfield sewage to an irradiation chamber containing an electron accelerator;
secondly, adopting an electron accelerator to carry out electron beam irradiation;
and step three, detecting the concentration of sulfur ions in the irradiated sewage.
The oilfield wastewater comprises: contains one or more of polymer produced water, ternary produced water and fracturing flowback fluid sewage.
In the second step, the oilfield sewage is polymer-containing produced water or ternary produced water, the initial sulfur ion concentration is 2-12 mg/L, and the irradiation absorption dose is 1-10 kGy.
In the second step, the oilfield sewage is fracturing flow-back fluid, the initial concentration of the sulfur ions is 10-24 mg/L, and the irradiation absorption dose is 1-20 kGy.
The electron beam irradiation in the second step may be carried out at any suitable temperature.
In the second step, the high-energy electron beam generated by the electron accelerator has the energy of 1.5-2.0 MeV.
The invention has the advantages of
The method for removing the sulfide in the oil field sewage by using the electron beam irradiation technology has the following advantages: 1) the method is usually carried out at normal temperature and normal pressure, and is convenient to apply; 2) the removal efficiency of the sulfur ions is high, the residence time under the beams is usually less than 1s, and the reaction speed is high; 3) no chemical reagent is needed to be added, the ion concentration and salinity of the oil field sewage are not increased, and secondary pollutants such as sludge and the like are not generated; 4) the electron accelerator is provided with a self-shielding device, has been applied to a plurality of fields such as food preservation, cable modification and the like, and has good safety.
The method has wide application prospect in the field of oilfield sewage treatment.
Detailed Description
The invention utilizes high-energy electron beams to treat oil field sewage. The water molecules, upon irradiation with a high-energy electron beam, undergo a reaction as in formula (1) (the parenthetical values are the number of each active particle per energy absorbed at 100 eV), in situ generation of the oxidizing active particle hydroxyl radicals OH and hydrogen peroxide, and the reducing hydrated electron eaq -And a hydrogen radical. H.
The inevitable existence of dissolved oxygen in the sewage is shown in formulas 2 and 3, and hydrated electrons and hydrogen free radicals react with the dissolved oxygen to generate oxidizing superoxide radical O2HO-and hydroperoxy radical2·。
eaq -+O2→O2·-k＝1.9×1010L/mol s (2)
·H+O2→HO2·k＝2.1×1010L/mol s (3)
Under the combined action of hydroxyl free radicals, superoxide free radicals, hydroperoxyl free radicals, hydrogen peroxide and direct radiation of electron beams, sulfide ions in the oilfield sewage are efficiently oxidized, so that the removal from the sewage is realized.
Based on the above, the invention provides a method for removing sulfide in oil field sewage by high-energy electron beam irradiation treatment, which comprises the following steps:
firstly, conveying oilfield sewage to an irradiation chamber containing an electron accelerator;
secondly, adopting an electron accelerator to carry out electron beam irradiation;
and step three, detecting the concentration of sulfur ions in the irradiated sewage.
The oilfield wastewater comprises: contains one or more of polymer produced water, ternary produced water and fracturing flowback fluid sewage.
In the second step, the oilfield sewage is polymer-containing produced water or ternary produced water, the initial sulfur ion concentration is 2-12 mg/L, and the irradiation absorption dose is 1-10 kGy, preferably 1-5 kGy.
In the second step, the oilfield sewage is fracturing flow-back fluid, the initial concentration of the sulfur ions is 10-24 mg/L, and the irradiation absorption dose is 1-20 kGy. Preferably, the absorbed dose is 15-20 kGy.
The electron beam irradiation in the second step may be carried out at any suitable temperature, preferably at ambient temperature.
In the second step, the high-energy electron beam generated by the electron accelerator has the energy of 1.5-2.0 MeV.
The following embodiments are described in detail to solve the technical problems by applying technical means to the present invention, and the implementation process of achieving the technical effects can be fully understood and implemented.
Example 1:
the oilfield sewage is taken from raw water containing a polymer sewage treatment station-1 in an oilfield in northern China, the content of sulfide ions is 1.72mg/L, the COD concentration is 800mg/L, and the pH value is 8.3.
And (3) treating the oilfield sewage by adopting electron beam irradiation. And (2) putting about 50mL of sewage into a sample bag, sealing the sample bag, paving the sample bag as thin as possible, conveying the sample bag to an irradiation chamber of an electron accelerator by using a conveyor belt for irradiation, and controlling the beam intensity and the transmission speed to obtain different irradiation absorbed doses of 1kGy, 5kGy and 10 kGy. The energy of the electron accelerator is 1.0-2.0MeV, and the residence time under the beam is less than 0.5 s. And detecting the concentration of sulfur ions in the sewage before and after irradiation.
When the irradiation absorption dose is 1kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 0.43mg/L, and the removal rate is 75 percent. When the irradiation absorption dose is 5kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 0mg/L, and the removal rate is 100%. When the irradiation absorption dose is 10kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 0mg/L, and the removal rate is 100%.
Example 2:
the oilfield sewage is taken from raw water containing a polymer sewage treatment station-2 in an oilfield in northern China, the content of sulfide ions is 2.92mg/L, the COD concentration is 610mg/L, and the pH value is 8.0.
Dividing the oilfield sewage into 3 parts, and directly irradiating one part of oilfield sewage by using an electron beam; adding 500mM of hydroxyl radical quencher tert-butyl alcohol into one part of the solution, oscillating the solution for 5min by vortex to uniformly mix the two, and then irradiating the mixed solution by adopting electron beams; after nitrogen is firstly aerated to blow out dissolved oxygen in water, 500mM of hydroxyl radical quencher tert-butyl alcohol is added, vortex oscillation is carried out for 5min, the hydroxyl radical quencher and the tert-butyl alcohol are uniformly mixed, and then the mixed solution is subjected to electron beam irradiation treatment. And (2) putting about 50mL of sewage into a sample bag, sealing the sample bag, paving the sample bag as thin as possible, conveying the sample bag to an irradiation chamber of an electron accelerator by using a conveyor belt for irradiation, and controlling the beam intensity and the transmission speed to obtain different irradiation absorbed doses of 1kGy, 5kGy and 10 kGy. The energy of the electron accelerator is 1.0-2.0MeV, and the residence time under the beam is less than 0.5 s. And detecting the concentration of sulfur ions in the sewage before and after irradiation.
When the irradiation absorption dose of the sewage sample which is not directly irradiated by adding the tert-butyl alcohol is 1kGy, the concentration of sulfur ions in the polymer-containing sewage is reduced to 0.63mg/L, and the removal rate is 78%. When the irradiation absorption dose is 5kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 0.40mg/L, and the removal rate is 86%. When the irradiation absorption dose is 10kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 0.22mg/L, and the removal rate is 92%.
When the irradiation absorption dose of the sewage sample added with tert-butyl alcohol and irradiated again is 1kGy, the concentration of sulfur ions in the polymer-containing sewage is reduced to 2.43mg/L, and the removal rate is 16.9%. When the irradiation absorption dose is 5kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 2.14mg/L, and the removal rate is 26.6%. When the irradiation absorption dose is 10kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 1.81mg/L, and the removal rate is 38.0 percent. It can be seen that under the same dosage, the removal rate of the sulfur ions is obviously reduced by 54-62% compared with the oilfield sewage sample without adding the tert-butyl alcohol.
The sewage sample which is aerated with nitrogen, added with tert-butyl alcohol and then irradiated is firstly exposed, when the irradiation absorption dose is 1kGy, the concentration of sulfur ions in the sewage containing polymer is reduced to 2.82mg/L, and the removal rate is 13.5 percent. When the irradiation absorption dose is 5kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 2.53mg/L, and the removal rate is 13.4%. When the irradiation absorption dose is 10kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 2.38mg/L, and the removal rate is 18.5 percent. It can be seen that the removal rate of sulfide ions is further reduced by 13% -19% compared to the sample in which t-butanol was added without nitrogen exposure, but the sulfide ion concentration is still somewhat reduced.
The research shows that hydroxyl radical plays a main role in removing sulfur ions by electron beam irradiation, and superoxide radical, hydroperoxyl radical, hydrogen peroxide and electron beam direct irradiation also contribute to removing the sulfur ions.
Example 3:
the oilfield sewage is taken from raw water of a ternary sewage treatment station of an oilfield in the north of China, the content of sulfide ions is 11.7mg/L, the COD concentration is 920mg/L, and the pH value is 8.5.
And (3) treating the oilfield sewage by adopting electron beam irradiation. And (2) placing about 50mL of water sample into a sample bag, sealing the sample bag, paving the sample bag as thin as possible, conveying the sample bag to an irradiation chamber of an electron accelerator by using a conveyor belt for irradiation, and controlling the beam intensity and the transmission speed to obtain different irradiation absorbed doses of 1kGy, 5kGy and 10 kGy. The energy of the electron accelerator is 1.0-2.0MeV, and the residence time under the beam is less than 0.5 s. And detecting the concentration of sulfur ions in the sewage before and after irradiation.
When the irradiation absorption dose is 1kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 3.54mg/L, and the removal rate is 69.7 percent. When the irradiation absorption dose is 2.5kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 2.37mg/L, and the removal rate is 79.7 percent. When the irradiation absorption dose is 5kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 1.91mg/L, and the removal rate is 83.7 percent. When the irradiation absorption dose is 10kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 0.89mg/L, and the removal rate is 92.4%.
Example 4:
the oilfield sewage is taken from raw water of a fracturing flow-back fluid treatment station-1 of an oilfield in northern China, the content of sulfide ions is 9.9mg/L, the COD concentration is 2201mg/L, and the pH value is 7.8.
And treating the fracturing flow-back fluid by adopting electron beam irradiation. And (2) placing about 50mL of water sample into a sample bag, sealing the sample bag, paving the sample bag as thin as possible, conveying the sample bag to an irradiation chamber of an electron accelerator by using a conveyor belt for irradiation, and controlling the beam intensity and the transmission speed to obtain different irradiation absorbed doses of 1kGy, 5kGy, 10kGy and 15 kGy. The energy of the electron accelerator is 1.0-2.0MeV, and the residence time under the beam is less than 0.5 s. And detecting the concentration of sulfur ions in the sewage before and after irradiation.
When the irradiation absorption dose is 1kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 5.6mg/L, and the removal rate is 43.0%. When the irradiation absorption dose is 5kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 3.9mg/L, and the removal rate is 60.0%. When the irradiation absorption dose is 10kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 2.9mg/L, and the removal rate is 70.4%. When the irradiation absorption dose is 15kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 1.5mg/L, and the removal rate is 84.8 percent. When the irradiation absorption dose is 20kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 0.7mg/L, and the removal rate is 92.9 percent.
Example 5:
the oilfield sewage is taken from raw water of a fracturing flow-back fluid treatment station-2 of an oilfield in northern China, the content of sulfur ions is 17.2mg/L, the COD concentration is 2750mg/L, and the pH value is 8.6.
And treating the fracturing flow-back fluid by adopting electron beam irradiation. And (2) placing about 50mL of water sample into a sample bag, sealing the sample bag, paving the sample bag as thin as possible, conveying the sample bag to an irradiation chamber of an electron accelerator by using a conveyor belt for irradiation, and controlling the beam intensity and the transmission speed to obtain different irradiation absorbed doses of 1kGy, 5kGy, 10kGy and 15 kGy. The energy of the electron accelerator is 1.0-2.0MeV, and the residence time under the beam is less than 0.5 s. And detecting the concentration of sulfur ions in the sewage before and after irradiation.
When the irradiation absorption dose is 1kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 12.2mg/L, and the removal rate is 29.0 percent. When the irradiation absorption dose is 5kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 9.4mg/L, and the removal rate is 45.0%. When the irradiation absorption dose is 10kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 5.2mg/L, and the removal rate is 69.8 percent. When the irradiation absorption dose is 15kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 2.9mg/L, and the removal rate is 83.1 percent. When the irradiation absorption dose is 20kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 1.8mg/L, and the removal rate is 89.5%.
Example 6:
the oilfield sewage is taken from raw water of a fracturing flow-back fluid treatment station-2 of an oilfield in northern China, the content of sulfide ions is 17.2mg/L, the COD concentration is 2750mg/L, and the pH value is 8.3.
And treating the fracturing flow-back fluid by adopting electron beam irradiation. And (2) placing about 50mL of water sample into a sample bag, sealing the sample bag, paving the sample bag as thin as possible, conveying the sample bag to an irradiation chamber of an electron accelerator by using a conveyor belt for irradiation, and controlling the beam intensity and the transmission speed to obtain different irradiation absorbed doses of 1kGy, 5kGy, 10kGy and 15 kGy. The energy of the electron accelerator is 1.0-2.0MeV, and the residence time under the beam is less than 0.5 s. And detecting the concentration of sulfur ions in the sewage before and after irradiation.
When the irradiation absorption dose is 1kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 24.4mg/L, and the removal rate is 17.4%. When the irradiation absorption dose is 5kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 17.3mg/L, and the removal rate is 29.0 percent. When the irradiation absorption dose is 10kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 9.2mg/L, and the removal rate is 62.2%. When the irradiation absorption dose is 15kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 3.9mg/L, and the removal rate is 84%. When the irradiation absorption dose is 20kGy, the concentration of sulfur ions in the polymer-containing wastewater is reduced to 1.5mg/L, and the removal rate is 93.9 percent.
Industrial applicability
The method can be applied to the treatment of oil field sewage such as oil field produced water, fracturing flow-back fluid and the like, and has wide application prospect in the field of crude oil exploitation.
All of the above mentioned intellectual property rights are not intended to be restrictive to other forms of implementing the new and/or new products. Those skilled in the art will take advantage of this important information, and the foregoing will be modified to achieve similar performance. However, all modifications or alterations are based on the new products of the invention and belong to the reserved rights.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (6)
1. A method for removing sulfide in oil field sewage by adopting high-energy electron beam irradiation treatment is characterized by comprising the following steps:
firstly, conveying oilfield sewage to an irradiation chamber containing an electron accelerator;
secondly, adopting an electron accelerator to carry out electron beam irradiation;
and step three, detecting the concentration of sulfur ions in the irradiated sewage.
2. The method for removing the sulfide in the oil field sewage by adopting the high-energy electron beam irradiation treatment as claimed in claim 1, wherein the method comprises the following steps: the oilfield sewage comprises one or more of polymer-containing produced water, ternary produced water and fracturing flow-back fluid sewage.
3. The method for removing the sulfide in the oil field sewage by adopting the high-energy electron beam irradiation treatment as claimed in claim 1 or 2, wherein: in the second step, the oilfield sewage is polymer-containing produced water or ternary produced water, the initial sulfur ion concentration is 2-12 mg/L, and the irradiation absorption dose is 1-10 kGy.
4. The method for removing the sulfide in the oil field sewage by adopting the high-energy electron beam irradiation treatment as claimed in claim 1 or 2, wherein: in the second step, the oilfield sewage is fracturing flow-back fluid, the initial concentration of the sulfur ions is 10-24 mg/L, and the irradiation absorption dose is 1-20 kGy.
5. The method for removing the sulfide in the oil field sewage by adopting the high-energy electron beam irradiation treatment as claimed in claim 1 or 2, wherein: the electron beam irradiation in the second step may be carried out at any suitable temperature.
6. The method for removing the sulfide in the oil field sewage by adopting the high-energy electron beam irradiation treatment as claimed in claim 1 or 2, wherein: in the second step, the high-energy electron beam generated by the electron accelerator has the energy of 1.5-2.0 MeV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111411605.6A CN114132987A (en) | 2021-11-23 | 2021-11-23 | Method for removing sulfide in oil field sewage by high-energy electron beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111411605.6A CN114132987A (en) | 2021-11-23 | 2021-11-23 | Method for removing sulfide in oil field sewage by high-energy electron beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114132987A true CN114132987A (en) | 2022-03-04 |
Family
ID=80391770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111411605.6A Pending CN114132987A (en) | 2021-11-23 | 2021-11-23 | Method for removing sulfide in oil field sewage by high-energy electron beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114132987A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1034188A (en) * | 1996-07-22 | 1998-02-10 | Chubu Gas Kk | Method for treating wastewater containing oil |
| JP2001192673A (en) * | 2000-01-11 | 2001-07-17 | Mitsubishi Heavy Ind Ltd | Desulfurization method by electron ray irradiation and apparatus therefor |
| CN101353593A (en) * | 2008-09-08 | 2009-01-28 | 湖北久瑞核技术股份有限公司 | Desulphurization method by irradiating oil with high-energy electron beam |
| CN108033616A (en) * | 2017-11-24 | 2018-05-15 | 南京悠谷新材料科技有限公司 | Oil field wastewater treatment equipment |
| CN108218066A (en) * | 2017-12-31 | 2018-06-29 | 滁州金桥德克新材料有限公司 | Electron beam irradiation dyeing and printing sewage coagulant and its application |
| CN109368900A (en) * | 2018-11-22 | 2019-02-22 | 中国石油工程建设有限公司 | A kind of sulfur Gas Fields water treatment technology |
| CN110467298A (en) * | 2019-08-23 | 2019-11-19 | 杰瑞环保科技有限公司 | A kind of fracturing outlet liquid immediate processing method |
| CN110921765A (en) * | 2019-10-24 | 2020-03-27 | 清华大学 | Method for reducing viscosity of oilfield produced water and simultaneously sterilizing |
| CN113024000A (en) * | 2021-03-10 | 2021-06-25 | 清华大学 | Method for pretreating or deeply treating industrial wastewater by adopting electron beam irradiation coupling Fenton technology |
-
2021
- 2021-11-23 CN CN202111411605.6A patent/CN114132987A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1034188A (en) * | 1996-07-22 | 1998-02-10 | Chubu Gas Kk | Method for treating wastewater containing oil |
| JP2001192673A (en) * | 2000-01-11 | 2001-07-17 | Mitsubishi Heavy Ind Ltd | Desulfurization method by electron ray irradiation and apparatus therefor |
| CN101353593A (en) * | 2008-09-08 | 2009-01-28 | 湖北久瑞核技术股份有限公司 | Desulphurization method by irradiating oil with high-energy electron beam |
| CN108033616A (en) * | 2017-11-24 | 2018-05-15 | 南京悠谷新材料科技有限公司 | Oil field wastewater treatment equipment |
| CN108218066A (en) * | 2017-12-31 | 2018-06-29 | 滁州金桥德克新材料有限公司 | Electron beam irradiation dyeing and printing sewage coagulant and its application |
| CN109368900A (en) * | 2018-11-22 | 2019-02-22 | 中国石油工程建设有限公司 | A kind of sulfur Gas Fields water treatment technology |
| CN110467298A (en) * | 2019-08-23 | 2019-11-19 | 杰瑞环保科技有限公司 | A kind of fracturing outlet liquid immediate processing method |
| CN110921765A (en) * | 2019-10-24 | 2020-03-27 | 清华大学 | Method for reducing viscosity of oilfield produced water and simultaneously sterilizing |
| CN113024000A (en) * | 2021-03-10 | 2021-06-25 | 清华大学 | Method for pretreating or deeply treating industrial wastewater by adopting electron beam irradiation coupling Fenton technology |
Non-Patent Citations (2)
| Title |
|---|
| 张成如等编著: "《清洁能源及节能环保新技术》", 30 September 2019, 中国环境出版集团, * |
| 毛应淮编: "《工艺环境学概论》", 31 July 2018, 中国环境出版集团 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130023448A1 (en) | Methods for Treating Hydrocarbon-Servicing Fluids and Wastewater and Fluids Produced Using the Same | |
| CN105255474B (en) | Selective treatment and reuse method for fracturing flow-back fluid | |
| CN111069260B (en) | In-situ treatment of non-aqueous contaminants in soil and groundwater | |
| WO2012075389A2 (en) | Method for treating a variety of wastewater streams | |
| Zhang et al. | Potential of ozone micro-bombs in simultaneously fast removing bloom-forming cyanobacteria and in situ degrading microcystins | |
| Chu et al. | Treatment of oil-field produced wastewater by electron beam technology: Demulsification, disinfection and oil removal | |
| CN110921765A (en) | Method for reducing viscosity of oilfield produced water and simultaneously sterilizing | |
| Hilles et al. | Advanced oxidation processes for water and wastewater treatment: An introduction | |
| CN110885144A (en) | Method for removing pollutants in water by enhanced air flotation | |
| CN114132987A (en) | Method for removing sulfide in oil field sewage by high-energy electron beam | |
| CN108675565A (en) | A kind of system and method for advanced treatment of landfill leachate | |
| CN110372048B (en) | Method for removing organic matters in water | |
| CN104876306A (en) | Method for treating sewage employing magnetic field | |
| CN106957078A (en) | A kind of method of the photocatalytic semiconductor sulphide ore degraded beneficiation wastewater Residuals based on iron-oxidizing bacterium | |
| CN107381770B (en) | Water treatment method for activating hydrogen peroxide under neutral condition | |
| Lei et al. | The advanced oxidation processes of oilfield wastewater: A review | |
| CN114057251B (en) | Treatment method of gas field wastewater | |
| Mortazavi et al. | Sequence-Fenton reaction for decreasing phenol formation during benzene chemical conversion in aqueous solutions | |
| Shi et al. | Study on fracturing flowback fluid treatment technology for shale gas in Yangzhou | |
| Ge | Withdrawn: Combined treatment of organic material in oilfield fracturing wastewater by coagulation and UV/H2O2/ferrioxalate complexes process | |
| KR100208956B1 (en) | METHOD FOR TREATING WASTEWATER BY AN ELECTRON BEAM AFTER ADJUSTING pH | |
| Zhang et al. | Removal of refractory organic compounds from bio-treated landfill leachate using a Fe0-H2O2-MoS2 process under continuous operation mode | |
| JP2002119977A (en) | Method and apparatus for cleaning polluted ground water | |
| Liang et al. | Removal of Toxic Organic Pollutants from Coke Plant Wastewater by UV-Fenton. | |
| Kluck et al. | Chemical oxidation techniques for in situ remediation of hydrocarbon impacted soils |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220304 |
|
| RJ01 | Rejection of invention patent application after publication |