CN103130390B - Oil-containing sludge treatment method and process flow - Google Patents
Oil-containing sludge treatment method and process flow Download PDFInfo
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- CN103130390B CN103130390B CN201310096683.0A CN201310096683A CN103130390B CN 103130390 B CN103130390 B CN 103130390B CN 201310096683 A CN201310096683 A CN 201310096683A CN 103130390 B CN103130390 B CN 103130390B
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- 239000010802 sludge Substances 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000000197 pyrolysis Methods 0.000 claims abstract description 62
- 239000000446 fuel Substances 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000003860 storage Methods 0.000 claims abstract description 22
- 230000018044 dehydration Effects 0.000 claims abstract description 17
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 17
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 11
- 239000002332 oil field water Substances 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 claims description 37
- 239000010779 crude oil Substances 0.000 claims description 36
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 235000003599 food sweetener Nutrition 0.000 claims description 10
- 239000003765 sweetening agent Substances 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 10
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000292 calcium oxide Substances 0.000 claims description 9
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000008394 flocculating agent Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 239000003002 pH adjusting agent Substances 0.000 claims description 7
- 239000008188 pellet Substances 0.000 claims description 7
- 239000000395 magnesium oxide Substances 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 6
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 claims description 6
- 230000035484 reaction time Effects 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 125000002091 cationic group Chemical group 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 229920002401 polyacrylamide Polymers 0.000 claims description 5
- 239000012286 potassium permanganate Substances 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 239000003245 coal Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 239000000571 coke Substances 0.000 claims description 3
- GQOKIYDTHHZSCJ-UHFFFAOYSA-M dimethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](C)(C)CC=C GQOKIYDTHHZSCJ-UHFFFAOYSA-M 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 10
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 239000010865 sewage Substances 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract 3
- 208000005156 Dehydration Diseases 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 16
- 239000011449 brick Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000002802 bituminous coal Substances 0.000 description 3
- 238000005111 flow chemistry technique Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Treatment Of Sludge (AREA)
Abstract
The invention belongs to an oil-containing sludge treatment method, and particularly relates to a method and process flow for treating oil-containing sludge having an oil content of more than 10%. The method is characterized by comprising the following steps: for oil-containing sludge having a water content of more than 70%, adding pH regulator, and regulating the pH value to 7-8; adding inorganic flocculant and organic flocculant, and performing dehydration treatment; after dehydration, feeding the oil-containing sludge into a pyrolysis device, performing low-temperature pyrolysis, and feeding gas generated by the pyrolysis into a gas recovery device for recycling; performing oil-water separation on the generated oil and water through an oil-water separation device, feeding the separated oil into an oil storage tank for recycling, and feeding the separated water into a sewage treatment device or an oilfield water treatment system; and adding igniter, combustion improver, binder and desulfurizer into the remaining sludge after the pyrolysis, feeding into a fuel preparation device, and preparing into fuel for utilization. The invention solves the technical problem on oil-containing sludge treatment for oilfield and refinery enterprises, and achieves the purposes of effectively recycling resources, saving energy, reducing emission and protecting environment.
Description
Technical field
The invention belongs to process for treating oil-containing sludge, process for treating oil-containing sludge and technical process that particularly a kind of oleaginousness is greater than 10%.
Background technology
Oil field inevitably can produce a large amount of oily sludges in exploration, exploitation, storage and transport process and in Petrochemical Enterprises petroleum refining process, these oily sludges have that composition is complicated, oleaginousness changes greatly, the intractability feature such as greatly, if deal with improperly, not only severe contamination underground water, surface water and surrounding enviroment, and cause the waste of petroleum resources.
China has strengthened the working dynamics of environment protection at present; according to national < < collection of drainage dues standard management way > >; to disposing Hazardous wastes with land-fill method, do not meet the provisions of the relevant regulations issued by the State, Hazardous wastes collection of drainage dues standard be per ton 1000 yuan at every turn.Oily sludge belongs to dangerous solid waste, for this reason, domestic each main oilfield and Petrochemical Enterprises have all been strengthened contained Mud Treatment Technology research, the research departments such as each universities and colleges also participate, though developed multiple process for treating oil-containing sludge and technique, as: burning method, pyrolysis method, extraction process, biological process etc., but because of processing cost, require the effects limit such as processing condition, the practical application in industry of institute's achievement in research is few, domestic most oil field still adopts landfill method to process oily sludge, and landfill phenomenon not up to standard is serious; The methods such as minority Oilfield using hypergravity solid-liquid separation, ultrasonic radiation processing reclaim crude oil, but oily sludge oleaginousness meet the requirement of environmental protection not yet after processing.Under this background, seek more reasonably contained Mud Treatment Technology, petroleum resources, protection of the environment that oily sludge is effectively administered, reclaimed in greasy filth just seem very important.
Summary of the invention
The invention provides a kind of process for treating oil-containing sludge and technical process, be specially adapted to oleaginousness and exceed 10% oily sludge, reach oily sludge harmless treatment, reclaim crude oil in mud, realize the object of resource reutilization.Method of the present invention comprises the technology contents such as the modified dehydration of oily sludge, low temperature pyrogenation, pyrolysis residue turning sludge into fuel.
Technical scheme of the present invention is: a kind of process for treating oil-containing sludge, is characterized in that: it comprises the steps:
1) for water content, being greater than 70% oily sludge, first to add pH adjusting agent to regulate pH value be 7-8, then add inorganic flocculating agent and organic floculant, makes oily sludge moisture control below 70%;
2) oily sludge after dehydration carries out low temperature pyrogenation, only reclaims the 40-50% of contained crude oil in oily sludge;
3) splitting gas that pyrolysis produces enters gas concentration unit and recycles;
4) You Heshui that pyrolysis produces enters oily-water seperating equipment and carries out oily water separation, and isolated oil enters storage tank and recycles, and isolated water enters waste disposal plant or oil-field water treatment system;
5) pyrolysis excess sludge adds detonator, ignition dope, binding agent and sweetening agent to enter fuel preparation plant fuel made piece or fuel pellet utilization, wherein pyrolysis excess sludge accounts for 42.3%-68.99%, detonator accounts for 30%-50%, ignition dope accounts for 0.01%-0.2%, binding agent accounts for 0.5%-5%, and sweetening agent accounts for 0.5%-2.5%.
Above-mentioned percentage ratio is mass percent.
Described pH adjusting agent is sodium hydroxide or hydrochloric acid.
Described inorganic flocculating agent is polymerize aluminum chloride or polymerization iron.
Described organic floculant is cationic polyacrylamide or Poly Dimethyl Diallyl Ammonium Chloride.
Described low temperature pyrogenation temperature is controlled at 300 ℃-450 ℃, and the reaction times is 1-2 hour.
Described detonator is coal, coke or sawdust, and dosage is the 30%-50% of fuel brick or fuel pellet total mass.
Described ignition dope is a kind of in potassium permanganate or Potcrate or its mixture, and dosage is the 0.01%-0.2% of fuel brick or fuel pellet total mass.
Described binding agent is clay, cement or lime grog, and dosage is the 0.5%-5% of fuel brick or fuel pellet total mass.
Described sweetening agent is a kind of in calcium oxide, magnesium oxide or zinc oxide or its mixture, and dosage is the 0.5%-2.5% of fuel brick or fuel pellet total mass.
Based on the technical process of process for treating oil-containing sludge, it is characterized in that: water content is greater than 70% oily sludge, and first to add pH adjusting agent to regulate pH value be 7-8, add again inorganic flocculating agent and organic floculant, then entering dewatering unit processes, make oily sludge moisture control below 70%, oily sludge after dehydration enters pyrolysis installation and carries out low temperature pyrogenation, and the gas that pyrolysis produces enters gas concentration unit and recycles; The You Heshui producing enters oily-water seperating equipment and carries out oily water separation, and isolated oil enters storage tank and recycles, and isolated water enters waste disposal plant or oil-field water treatment system; In pyrolysis excess sludge, add detonator, ignition dope, binding agent and sweetening agent to enter the utilization of fuel preparation plant fuel made piece.
Beneficial effect of the present invention is: the oily sludge that the present invention is greater than 10% mainly for oleaginousness, adopt modified dehydration, low temperature pyrogenation, pyrolysis residue turning sludge into fuel treatment technology, realize the object of oily sludge resource reutilization, protection of the environment: 1. modified dehydration: for the high oily sludge of water content, in order to reduce pyrolysis processing energy consumption, first carry out processed, sludge moisture content is down to below 70%; For water content, lower than this step of oily sludge of 70%, can omit; 2. low temperature pyrogenation: under oxygen free condition, oily sludge is carried out to low temperature pyrogenation processing, control pyrolysis temperature at 300 ℃-450 ℃, make the incomplete pyrolysis of crude oil, to reclaim crude oil as main, gas production rate is low, reclaims 40%-50% crude oil in oily sludge, the former oil freezing point reclaiming is low, oil quality is good, and energy consumption is little, and excess sludge is beneficial to turning sludge into fuel processing; Pyrolysis gas and sewage that pyrolysis produces recycle respectively; 3. pyrolysis residue turning sludge into fuel processing: after oily sludge pyrolysis, residue contains part crude oil and carbon, and calorific value is higher, adds detonator, ignition dope, binding agent, sweetening agent fuel made, makes full use of the energy, protection of the environment.
Accompanying drawing explanation
Below in conjunction with embodiment accompanying drawing, the present invention will be further described, but not as a limitation of the invention:
Fig. 1 is embodiment of the present invention process flow sheet.
In figure: 1. dewatering unit, 2. pyrolysis installation, 3. gas concentration unit, 4. oily-water seperating equipment, 5. storage tank, 6. waste disposal plant or oil-field water treatment system, 7. fuel preparation plant.
Embodiment
As shown in Figure 1, embodiment of the present invention technical process is: water content is greater than 70% oily sludge, and first to add pH adjusting agent to regulate pH value be 7-8, add again inorganic flocculating agent and organic floculant, then enter dewatering unit 1 and carry out processed, make oily sludge moisture control below 70%, oily sludge after dehydration enters pyrolysis installation 2 and carries out low temperature pyrogenation, and the gas that pyrolysis produces enters gas concentration unit 3 and recycles; The You Heshui producing enters oily-water seperating equipment 4 and carries out oily water separation, and isolated oil enters storage tank 5 and recycles, and isolated water enters waste disposal plant 6 or oil-field water treatment system; In pyrolysis excess sludge, add detonator, ignition dope, binding agent and sweetening agent to enter fuel preparation plant 7 fuel made piece utilizations.
Embodiment 1: crude oil storage tank sludge handling
1. water content is greater than that in 70% oily sludge, to add sodium hydroxide to regulate pH value be 7.5, add again polymerize aluminum chloride 200mg/L and cationic polyacrylamide 5mg/L, then enter dewatering unit 1 and carry out processed, after oily sludge dehydration, water ratio is 68.4%;
2. the oily sludge after dewatering enters pyrolysis installation 2 and at 400 ℃, carries out pyrolysis, and the reaction times is 1.5 hours; Only reclaim the 40%-50%(of contained crude oil in oily sludge: the crude oil of recovery accounts for the 40-50% that oily sludge always contains former oil mass);
3, the splitting gas that pyrolysis produces enters gas concentration unit 3 and recycles;
4, the You Heshui that pyrolysis produces enters oily-water seperating equipment 4 and carries out oily water separation, and isolated oil enters storage tank 5 and recycles, and isolated water enters waste disposal plant or oil-field water treatment system 6;
5. pyrolysis excess sludge adds coal, 0.05% potassium permanganate, 3% clay and 1% calcium oxide and the magnesian mixture of fuel brick total mass 40% to enter fuel preparation plant 7 fuel made piece utilizations.Wherein, calcium oxide is that 1:1 mixes in mass ratio with magnesium oxide, and above-mentioned percentage ratio is mass percent.
After above-mentioned steps is to crude oil storage tank sludge handling, detected result is if table 1 is as shown:
Detected result after table 1 crude oil storage tank sludge handling
| ? | Oil tank bed mud one | Oil tank bed mud two |
| Crude oil recovery rate (%) | 48% | 44% |
| Zero pour before crude oil pyrolysis (℃) | 24 | 32 |
| Pyrolysis produce former oil freezing point (℃) | 17 | 22 |
| Fuel made calorific value (kcal/kg) | 5324 | 5386 |
| Fuel combustion smoke dust discharge concentration (mg/m 3） | 44.5 | 45.7 |
| Blackness of exhaustion (Ringelman is black) degree (level) | ＜1 | ＜1 |
| SO 2Emission concentration (mg/m 3） | 323 | 409 |
By the data of table 1, can find out that crude oil storage tank bed mud crude oil after this flow processing obtains efficient recovery, fuel value and bituminous coal that after pyrolysis, mud is made are suitable, SO in flue gas after burning
2etc. index meet the requirement of environmental protection.
Embodiment 2: refinery's crude oil storage tank disposal of oily sludge
1. water content is greater than that in 70% oily sludge, to add sodium hydroxide to regulate pH value be 7.5, add again polymerize aluminum chloride 200mg/L and cationic polyacrylamide 5mg/L, then enter dewatering unit 1 and carry out processed, after oily sludge dehydration, water ratio is 66.7%;
2. the oily sludge after dehydration enters pyrolysis installation 2, carries out low temperature pyrogenation at 380 ℃, and the reaction times is 1.5 hours; Only reclaim the 40%-50%(of contained crude oil in oily sludge: the crude oil of recovery accounts for the 40-50% that oily sludge always contains former oil mass);
3, the splitting gas that pyrolysis produces enters gas concentration unit 3 and recycles;
4, the You Heshui that pyrolysis produces enters oily-water seperating equipment 4 and carries out oily water separation, and isolated oil enters storage tank 5 and recycles, and isolated water enters waste disposal plant or oil-field water treatment system 6;
5. pyrolysis excess sludge adds coal, 0.05% potassium permanganate and Potcrate mixture, 2% cement and 1% calcium oxide and the magnesian mixture of fuel brick total mass 45% to enter the utilization of fuel preparation plant fuel made piece.Wherein, potassium permanganate is all that 1:1 mixes in mass ratio with Potcrate, calcium oxide with magnesium oxide, and above-mentioned percentage ratio is mass percent.
After above-mentioned steps is to refinery's crude oil storage tank disposal of oily sludge, detected result is if table 2 is as shown:
Detected result after table 2 refinery crude oil storage tank disposal of oily sludge
| ? | Oil tank bed mud one | Oil tank bed mud two |
| Crude oil recovery rate (%) | 48% | 46% |
| Zero pour before crude oil pyrolysis (℃) | 24 | 21 |
| Pyrolysis produce former oil freezing point (℃) | 18 | 17 |
| Fuel made calorific value (kcal/kg) | 5461 | 5483 |
| Fuel combustion smoke dust discharge concentration (mg/m 3） | 43.1 | 42.5 |
| Blackness of exhaustion (Ringelman is black) degree (level) | ＜1 | ＜1 |
| SO 2Emission concentration (mg/m 3） | 326 | 317 |
By the data of table 2, can find out that crude oil storage tank oily sludge crude oil after this flow processing in refinery's obtains efficient recovery, fuel value and bituminous coal that after pyrolysis, mud is made are suitable, SO in flue gas after burning
2etc. index meet the requirement of environmental protection.
Embodiment 3: refinery sludge pond disposal of oily sludge
1. to be greater than and to add salt acid for adjusting pH value in 70% oily sludge be 7.0 to water content, then add polymerization iron 200mg/L and cationic polyacrylamide 5mg/L, then enters dewatering unit 1 and carry out processed, and after oily sludge dehydration, water ratio is 65.8%;
2. the oily sludge after dehydration carries out pyrolysis at 300 ℃, and the reaction times is 1 hour;
3. pyrolysis excess sludge adds coke, 0.01% Potcrate, 0.5% lime grog and 0.5% the calcium oxide (can be also magnesium oxide or zinc oxide) of fuel pellet total mass 30% to enter the utilization of fuel preparation plant fuel made particle, and above-mentioned percentage ratio is mass percent.
After above-mentioned steps is to refinery's crude oil storage tank disposal of oily sludge, detected result is if table 3 is as shown:
Detected result after the disposal of oily sludge of table 3 refinery sludge pond
| ? | Oil tank bed mud one | Oil tank bed mud two |
| Crude oil recovery rate (%) | 41% | 43% |
| Zero pour before crude oil pyrolysis (℃) | 23 | 22 |
| Pyrolysis produce former oil freezing point (℃) | 18 | 17 |
| Fuel made calorific value (kcal/kg) | 5243 | 5216 |
| Fuel combustion smoke dust discharge concentration (mg/m 3） | 42.6 | 41.7 |
| Blackness of exhaustion (Ringelman is black) degree (level) | ＜1 | ＜1 |
| SO 2Emission concentration (mg/m 3） | 313 | 297 |
By the data of table 3, can find out that crude oil storage tank oily sludge crude oil after this flow processing in refinery's obtains efficient recovery, fuel value and bituminous coal that after pyrolysis, mud is made are suitable, SO in flue gas after burning
2etc. index meet the requirement of environmental protection.
Embodiment 4: oil field sludge pond disposal of oily sludge
1. water content is greater than that in 70% oily sludge, to add sodium hydroxide to regulate pH value be 8.0, then adds polymerization iron 200mg/L and Poly Dimethyl Diallyl Ammonium Chloride (molecular formula
be(C
8h
16nCl)
n, wherein n is 12) and 5mg/L, be then positioned over dewatering unit 1 and dewater, after oily sludge dehydration, water ratio is 65.1%;
2. the oily sludge after dehydration carries out pyrolysis at 450 ℃, and the reaction times is 2 hours;
3. in pyrolysis excess sludge, add sawdust, 0.2% Potcrate, 5% lime grog and 2.5% the calcium oxide (can be also magnesium oxide or zinc oxide) of fuel brick total mass 50% to enter the utilization of fuel preparation plant fuel made piece, above-mentioned percentage ratio is mass percent.For example produce 1000kg fuel brick, wherein pyrolysis excess sludge 423kg, sawdust 500kg, Repone K 2kg, lime grog 50kg, calcium oxide 25kg.
After above-mentioned steps is to refinery's crude oil storage tank disposal of oily sludge, detected result is if table 4 is as shown:
Detected result after the disposal of oily sludge of table 4 oil field sludge pond
| ? | Oil tank bed mud one | Oil tank bed mud two |
| Crude oil recovery rate (%) | 46% | 45% |
| Zero pour before crude oil pyrolysis (℃) | 32 | 31 |
| Pyrolysis produce former oil freezing point (℃) | 24 | 24 |
| Fuel made calorific value (kcal/kg) | 4753 | 4769 |
| Fuel combustion smoke dust discharge concentration (mg/m 3） | 39.4 | 38.1 |
| Blackness of exhaustion (Ringelman is black) degree (level) | ＜1 | ＜1 |
| SO 2Emission concentration (mg/m 3） | 274 | 281 |
The part that the present embodiment does not describe in detail and english abbreviation belong to the common practise of the industry, can search on the net, here not narration one by one.
Claims (2)
1. a process for treating oil-containing sludge, is characterized in that: it comprises the steps:
1) for water content, being greater than 70% oily sludge, first to add pH adjusting agent to regulate pH value be 7-8, then add inorganic flocculating agent and organic floculant, makes oily sludge moisture control below 70%;
2) oily sludge after dehydration carries out low temperature pyrogenation, only reclaims the 40%-50% of contained crude oil in oily sludge;
3) splitting gas that pyrolysis produces enters gas concentration unit and recycles;
4) You Heshui that pyrolysis produces enters oily-water seperating equipment and carries out oily water separation, and isolated oil enters storage tank and recycles, and isolated water enters waste disposal plant or oil-field water treatment system;
5) pyrolysis excess sludge adds detonator, ignition dope, binding agent and sweetening agent to enter fuel preparation plant fuel made piece or fuel pellet utilization, wherein pyrolysis excess sludge accounts for 42.3%-68.99%, detonator accounts for 30%-50%, ignition dope accounts for 0.01%-0.2%, binding agent accounts for 0.5%-5%, and sweetening agent accounts for 0.5%-2.5%;
Above-mentioned percentage ratio is mass percent;
Described inorganic flocculating agent is polymerize aluminum chloride or polymerization iron; Described organic floculant is cationic polyacrylamide or Poly Dimethyl Diallyl Ammonium Chloride; Described low temperature pyrogenation temperature is controlled at 300 ℃-450 ℃, and the reaction times is 1-2 hour; Described detonator is coal, coke or sawdust; Described ignition dope is a kind of in potassium permanganate or Potcrate or its mixture; Described binding agent is clay, cement or lime grog; Described sweetening agent is a kind of in calcium oxide, magnesium oxide or zinc oxide or its mixture; Described pH adjusting agent is sodium hydroxide or hydrochloric acid.
2. the technical process of process for treating oil-containing sludge according to claim 1, it is characterized in that: water content is greater than 70% oily sludge, and first to add pH adjusting agent to regulate pH value be 7-8, add again inorganic flocculating agent and organic floculant, then enter dewatering unit (1) and carry out processed, make oily sludge moisture control below 70%, oily sludge after dehydration enters pyrolysis installation (2) and carries out low temperature pyrogenation, and the gas that pyrolysis produces enters gas concentration unit (3) and recycles; The You Heshui producing enters oily-water seperating equipment (4) and carries out oily water separation, and isolated oil enters storage tank (5) and recycles, and isolated water enters waste disposal plant (6) or oil-field water treatment system; In pyrolysis excess sludge, add detonator, ignition dope, binding agent and sweetening agent to enter fuel preparation plant (7) fuel made utilization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310096683.0A CN103130390B (en) | 2013-03-25 | 2013-03-25 | Oil-containing sludge treatment method and process flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310096683.0A CN103130390B (en) | 2013-03-25 | 2013-03-25 | Oil-containing sludge treatment method and process flow |
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| CN103359907A (en) * | 2013-07-04 | 2013-10-23 | 南京万德斯环保科技有限公司 | Novel environment friendly conditioner for deep dehydration of sludge |
| CN103922553B (en) * | 2014-04-29 | 2015-11-18 | 章琳茂 | A kind of method of raw materials oil from mud |
| CN104556620A (en) * | 2014-12-23 | 2015-04-29 | 常熟市添源环保科技有限公司 | Dehydration method of sludge |
| CN104556601B (en) * | 2014-12-30 | 2016-06-01 | 韩京龙 | The not Application way of oil-containing oil drilling mud |
| CN105417906A (en) * | 2015-12-10 | 2016-03-23 | 李准 | Oil field sludge treatment device |
| CN105884158B (en) * | 2016-06-06 | 2017-02-08 | 上海睿岛节能环保科技有限公司 | Oily sludge treatment method based on conditioning technology |
| CN106316024A (en) * | 2016-09-28 | 2017-01-11 | 中国科学院新疆理化技术研究所 | Oil-containing sludge low-temperature pyrolysis reclamation treatment method |
| CN106433703B (en) * | 2016-11-08 | 2022-01-18 | 湖南万容科技股份有限公司 | Circulation pyrolysis oven and have its pyrolysis system |
| CN108238706B (en) * | 2016-12-23 | 2024-03-15 | 上海金匙环保科技股份有限公司 | Oily sludge step-by-step pyrolysis treatment system and process |
| CN107325854A (en) * | 2017-06-15 | 2017-11-07 | 霍林郭勒市嘉华能源技术开发有限公司 | The formula and preparation method of a kind of machine-made carbon binding agent |
| CN108456539B (en) * | 2017-11-24 | 2019-04-16 | 绵阳油普能源科技有限责任公司 | Hydrocarbonaceous organic matter thermal decomposition process method |
| CN108720074A (en) * | 2018-06-19 | 2018-11-02 | 重庆霏洋环保科技股份有限公司 | A kind of preparation method of fruit tree shredded tobacco for water pipes charcoal |
| CN109912163A (en) * | 2019-02-28 | 2019-06-21 | 南京泓远环保科技有限公司 | A kind of treatment method of oily sludge |
| CN111574006B (en) * | 2020-05-31 | 2021-01-05 | 佛山经纬纳科环境科技有限公司 | Method for recovering catalytic pyrolysis resources of oily sludge |
| CN113999707A (en) * | 2021-10-22 | 2022-02-01 | 中冶集团武汉勘察研究院有限公司 | Oil-based mud and biomass mixed forming fuel and preparation method thereof |
| CN114426384A (en) * | 2022-02-08 | 2022-05-03 | 河南省高新技术实业有限公司 | Method for treating oil sludge |
| CN115925201A (en) * | 2023-01-31 | 2023-04-07 | 常州永葆绿能环境有限公司 | Treatment system and treatment method for oily sludge pyrolysis water |
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| US29580A (en) * | 1860-08-14 | Camp-stool | ||
| IL152513A (en) * | 2002-10-28 | 2007-02-11 | Bio Petrol Ltd | Process for treatment of organic waste |
| CN1939870A (en) * | 2005-09-29 | 2007-04-04 | 中国石油天然气集团公司 | Non-silicon sludge curing treatment of thickened-oil sewage |
| CN100513337C (en) * | 2006-07-28 | 2009-07-15 | 中国石油天然气股份有限公司 | A kind of resource treatment method of oily sludge |
| CN202063811U (en) * | 2011-04-02 | 2011-12-07 | 陕西延长石油(集团)有限责任公司研究院 | Oily sludge treatment equipment |
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