A kind of processing method and processing system for high temperature thermochemical cleaning of heavy sludge
A technology of chemical cleaning and treatment methods, which is applied in the fields of chemical instruments and methods, sludge treatment, water/sludge/sewage treatment, etc. It can solve the problems of unstable process conditions such as temperature and solid-liquid ratio, large water and heat loss, and The problem of high temperature in the reaction tank can overcome the loss of water and heat, enhance the fluidity, and reduce the cleaning time.
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Embodiment 1
[0035] A processing system for high-temperature thermochemical cleaning of heavy oil sludge includes a hot washing tank 3, a primary separation tank 1, a secondary separation tank 2, and a plate and frame filter press 4 that are connected in sequence.
[0036] The top of the hot washing tank 3 is provided with a cooling unit 5, the lower part of the side is provided with a feed port 6, and the bottom is communicated with the upper part of the side of the primary separation tank 1 through a pipeline. The cooling unit 5 is a horizontally arranged tubular heat exchanger; a V-shaped partition 13 is arranged between the cooling unit 5 and the top of the hot washing tank 3, and a liquid leakage port 14 is arranged at the bottom of the V-shaped partition 13; There are gaps between the edges of the two ends of the partition plate 13 and the inner wall of the hot-washing tank 3 .
[0037] The bottom of the primary separation tank 1 is provided with an oil phase outlet 7 and a suspensio...
Embodiment 2
[0041] This embodiment provides a processing method for high-temperature thermochemical cleaning of heavy sludge, and the method is implemented according to the processing system of Embodiment 1.
[0042] Take the bilge sludge from a certain port, the sludge is gray-brown, has a strong petroleum odor, and its moisture content is 55%. The dry base oil content of the sludge is 29.25% by infrared spectrophotometry.
[0043] The method for processing the sludge comprises the steps of:
[0044](1) Take raw materials according to the following parts by weight: 30 parts of sodium dodecyl benzene sulfonate, five parts of fatty alcohol polyoxyethylene ether AEO-9, 0.1 part of sodium silicate, 0.01 part of n-butanol, and 50 parts of purified water. Mix all the raw materials evenly to obtain a cleaning solution.
[0045] Then, 25% by mass of hollow silica submicron spheres was added to the cleaning solution, and the mixture was stirred at 50 rpm for 10 minutes. The diameter of the holl...
Embodiment 3
[0052] This embodiment provides a processing method for high-temperature thermochemical cleaning of heavy sludge, and the method is implemented according to the processing system of Embodiment 1.
[0053] An aging sample from an oilfield was taken. The sample was black lumps, the surface layer was covered with sediment, and its moisture content was 47%. The dry oil content of the oily sludge was 20.36% by infrared spectrophotometry.
[0054] The method for handling this sludge is generally consistent with Example 2, and the difference is that the parts by weight of each raw material of the cleaning solution are different, specifically:
[0055] 25 parts of sodium dodecylbenzenesulfonate, one part of fatty alcohol polyoxyethylene ether AEO-7, 0.01 part of sodium silicate, 0.02 part of n-butanol, and 45 parts of purified water. Mix all the raw materials evenly to obtain a cleaning solution. Then, 35% of the hollow silica submicron spheres by mass are added to the cleaning solut...
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Abstract
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