Method for processing oil sludge
A technology for sludge and treatment steps, applied in the field of sludge treatment, can solve problems such as secondary pollution and incomplete treatment, and achieve the effects of reducing unit energy consumption, reducing load, and reducing operating costs
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specific Embodiment 1
[0017] The concrete embodiment of the present invention will be described by taking the oily sludge from an oilfield as an example. The selected oil sludge is thick oil sludge, dark brown in color, no obvious crude oil accumulation condensate, crude oil and soil adhere closely. After sampling, pick out the larger stones, branches and domestic garbage in the sample, then mix the sample evenly, and place it in a sealed place. Oil sludge contains 74.32% oil, 14.60% water, and the rest is solid matter.
[0018] The screw feed pump is used to push the viscous oil sludge into the homogeneous reactor filled with water and heated to a certain temperature at a certain flow rate by using the screw propulsion function. At the same time, the chemical will also enter the homogeneous reactor together with the oil sludge. . The reaction conditions are as follows: heating temperature 80°C, stirring time 60 minutes, solid-liquid ratio 1:4, medicament concentration 0.5% (w / w). Turn on the ag...
specific Embodiment 2
[0020] Take the oil sludge from another oilfield as an example to illustrate the specific embodiment of the present invention. Oil sludge contains 81.30% oil, 14.25% water, and the rest is solid matter.
[0021] Process flow is with embodiment 1. The reaction conditions in the homogeneous reactor are: heating temperature 70°C, stirring time 90min, solid-liquid ratio 1:6, medicament concentration 0.8% (w / w). After the combined process of heating chemical washing-aeration degreasing-centrifugal separation, the oil content in the sand is 4.5%, the sand content in the oil is 1.3%, and the water content in the oil is 4.8%.
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