A kind of oil sludge resource treatment process and system
A processing system and resource-based technology, applied in the field of environmental protection, can solve the problems of harsh operating environment, potential safety hazards, unfavorable sludge collection and transportation, etc., and achieve the effect of low energy consumption and convenient operation.
Active Publication Date: 2015-10-14
BEIJING BIOTECHINA ENVIRONMENT CORP
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Problems solved by technology
[0003] At present, solvent method, chemical demulsification method, thermal washing, thermal decomposition, solid-liquid separation and incineration are mostly used for oil sludge treatment. However, none of the above methods can fully meet the needs of oil sludge resource treatment. The distribution of oil tanks is very scattered, which is not conducive to the collection and transportation of oil sludge, and the investment and operating costs of oil sludge treatment are relatively high; in addition, most oilfield storage tank oil sludge is currently cleaned manually, and the operating environment is harsh and there are potential safety hazards
Method used
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Embodiment 2
[0053] Embodiment 2 Landed Oil Sludge Treatment
[0054] Using the above process and system, the landed oil sludge in an oilfield is treated, and the main components of the landed oil sludge are shown in Table 2:
[0055] Table 2: Main components of floor sludge
[0056] project
Moisture content (wt%)
Hydrocarbons (wt%)
Solid content (wt%)
value
90
6
4
[0057] The treatment capacity of the ground oil sludge is 10m 3 / h. Wherein, in the sludge adjustment step, the AE-type demulsifier in the dispensing tank 23 enters the sludge adjustment tank 2 under the lifting action of the dosing pump group 24 in an amount of 1200 mg / L according to the amount of sludge to be treated, and At 80°C, the oil sludge and the conditioning agent were mixed and stirred for 4.5 hours. In the step of standing and separating the oil and cement, the oil sludge was settled in the oil and cement separation tank 4 at 70°C for 4.5 hours to realize the separ...
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Abstract
The invention discloses a resourceful treatment process and system for oil sludge. The process comprises the following steps of: a, mixing and stirring the oil sludge and a conditioner for 2 to 6 hours at 40 to 80 DEG C; b, standing the conditioned oil sludge for stratifying for 2 to 6 hours at 60 to 70 DEG C under the effect of gravity to realize the initial separation of oil, water and sludge; c, further finely separating the oil sludge separated in step b to realize three-phase separation of the oil, water and sludge in the oil sludge; and d, treating an oil substance in the sewage generated in step c by absorbing and purifying through an absorbent; recovering the separated oil; and reinjecting or directly draining the purified water to the outside. The system comprises a truck and a treatment system arranged on a truck body; the treatment system comprises an oil sludge collecting system, an oil sludge pre-treatment unit, an oil sludge conditioning unit, an oil sludge separation unit, a heat exchange unit, a centrifugal separation unit and a sewage purifying unit. The oil sludge minimization reaches 80%, and the recovery rate of the crude oil treated by the process and system disclosed by the invention is more than 90%.
Description
technical field [0001] The invention relates to an oil sludge treatment process and system, in particular to an oil sludge treatment process and system for treating tank oil sludge and floor sludge, and belongs to the field of environmental protection. Background technique [0002] Sludge includes several types of oil sludge produced in the process of oil production, such as oil sludge at the well site, oil sludge at the bottom of oil storage tanks, and residue oil from refineries. ~60%, and also includes materials such as bricks, stones, and active agents added in the process of crude oil extraction. Due to the high oil content in oil sludge, if it is directly disposed of, it will cause environmental pollution and waste resources. How to effectively treat oil sludge, reduce the risk of environmental pollution, and maximize its utilization has become an urgent problem to be solved. [0003] At present, solvent method, chemical demulsification method, thermal washing, therm...
Claims
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IPC IPC(8): C02F11/00C02F1/28B60P3/00B60S1/66
Inventor 李国文于勇勇苏贞峰郭春生包长春
Owner BEIJING BIOTECHINA ENVIRONMENT CORP