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Treatment method of oily sludge

A treatment method and sludge technology, applied in sludge treatment, water/sludge/sewage treatment, sludge treatment through temperature control, etc., can solve secondary pollution and other problems, and achieve secondary pollution prevention and mineral element content High and reduce the effect of recycling cost

Active Publication Date: 2019-04-26
KARAMAY AOZE IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a treatment method for oily sludge, which overcomes the deficiencies of the above-mentioned prior art, and can effectively solve the problem of secondary pollution in the existing oily sludge treatment method

Method used

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  • Treatment method of oily sludge

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Effect test

Embodiment 1

[0014] Embodiment 1: The treatment method of the oily sludge is carried out according to the following steps: the first step is to fluidize the oily sludge to obtain a mixed fluid; the second step is to heat and condense the mixed fluid in order to obtain Oil-water mixture and oil sludge, while heating the mixed fluid, stir the mixed fluid, wherein, the stirring speed is 1.5 rpm to 10 rpm, the heating temperature is 50°C to 500°C, and the condensation temperature is 10°C to 32°C; in the third step, the sludge is heated at a high temperature to obtain furnace ash, and the temperature of the high temperature heating is 600°C to 1000°C. According to the treatment method for oily sludge described in this example, the oily sludge A is treated, the oil content of the oily sludge A is 8% to 35% (volume percentage), and the water content is 30% to 40% (volume percentage ), the solid content rate is 30% to 45% (volume percentage), and the recovery rate of the oil-water mixture obtained...

Embodiment 2

[0015] Embodiment 2: The treatment method of the oily sludge is carried out according to the following steps: the first step is to fluidize the oily sludge to obtain a mixed fluid; the second step is to heat and condense the mixed fluid in order to obtain Oil-water mixture and oil sludge, while heating the mixed fluid, stir the mixed fluid, wherein the stirring speed is 1.5 rpm or 10 rpm, the heating temperature is 50°C or 500°C, and the condensation temperature is 10°C or 32°C; in the third step, the sludge is heated at a high temperature to obtain furnace ash, and the temperature of the high-temperature heating is 600°C or 1000°C.

Embodiment 3

[0016] Embodiment 3: The treatment method of the oily sludge is carried out according to the following steps: the first step is to fluidize the oily sludge to obtain a mixed fluid; the second step is to heat and condense the mixed fluid in order to obtain Oil-water mixture and oil sludge, while heating the mixed fluid, stir the mixed fluid, wherein, the stirring speed is 1.5 rpm, the heating temperature is 50°C, and the condensation temperature is 10°C; the third step is to Furnace ash is obtained from oil sludge after high-temperature heating, and the temperature of high-temperature heating is 600°C. According to the oily sludge treatment method described in this example, the oily sludge B is treated. The oily sludge B has an oil content of 16% (volume percentage), a water content of 30% (volume percentage), and a solid content of 34% (volume percentage), the recovery rate of the oil-water mixture obtained after the oily sludge B is treated by the oily sludge treatment method...

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Abstract

The invention relates to the technical field of oil-bearing sludge recycling methods, in particular to a treatment method for oil-bearing sludge. The treatment method is implemented according to the following steps that 1, the oil-bearing sludge is subjected to fluidizing treatment to obtain mixed fluid; 2, the mixed fluid is heated and condensed sequentially to obtain an oil-water mixture and oil sludge, wherein the mixed fluid is stirred while mixed fluid is heated; 3, the oil sludge is heated at high temperature to obtain furnace ash. According to the treatment method for the oil-bearing sludge, oil and water in the oil-bearing sludge can be fully recycled, a chemical additive does not need to be added in the applying process of the treatment method for the oil-bearing sludge, and therefore the recycling cost of the oil-bearing sludge is reduced; the furnace ash obtained according to the treatment method for the oil-bearing sludge can meet the environment protection emission requirement to prevent secondary pollution, and the mineral element content of the furnace ash is high, so that the furnace ash can be used for farmland fertilizer.

Description

technical field [0001] The invention relates to the technical field of oily sludge recovery methods, and relates to a treatment method for oily sludge. Background technique [0002] The sources of oily sludge mainly include the following ways: crude oil extraction, oil field gathering and transportation process and refinery sewage treatment. At present, the total amount of oily sludge produced in my country every year reaches more than 5 million tons. As most oilfields enter the mid-to-late stage of production, the water content in the produced oil is getting higher and higher, and the amount of oily sludge increases accordingly. The composition of oily sludge is extremely complex. It is mainly composed of emulsified oil, water, and suspended solids. The specific resistance of oily sludge is 40 times larger than that of ordinary sludge, and its compressibility coefficient is 20 times larger than that of ordinary sludge. Huge, so it is not easy to realize the three-phase s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/18C02F11/10C10G1/00
CPCC02F11/00C02F11/10C02F11/18C10G1/00
Inventor 倪红霞刘敬礼黄凯王志刚杨科学曾志钧杜庆福
Owner KARAMAY AOZE IND & TRADE
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