Method for separating petroleum from petroleum sludge and separating agent
A separation agent and petroleum technology, which is applied in the petroleum industry and the preparation of liquid hydrocarbon mixtures, etc., can solve the problems of separation agent environmental pollution, long reaction and clarification time, etc., and achieve the effect of low cost and rapid separation reaction
Active Publication Date: 2008-03-19
辽宁东野环保产业开发有限公司
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[0003] In order to overcome the shortcomings of the existing process of separating oil from oil sludge, the process of separating oil from oil sludge is complicated, the reaction and clarification time is long, and the separating agent is easy to cause environmental pollution, the present invention proposes a method and separating agent for separating oil from oil sludge
The method adopts a one-step method to complete the process of separating oil from oil sludge, uses a cationic surfactant mixed with saponin as a separating agent, and uses an inorganic acid as a neutralizing agent to solve the technical problems of rapid separation of oil sludge and biological treatment of wastewater
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[0012] a. Add clean water and oil sludge: Add clear water to the reactor, preheat to 95°C, then add oil sludge, stir to make the oil sludge disperse in the water body, in the form of a suspension slurry, and keep warm for 30 minutes under stirring;
[0013] d. Adding separating agent: add the aqueous solution of separating agent into the suspended mud, and stir to make the separating agent fully contact with the mud, separate the oil from the sediment and water, settle for 60 minutes, the oil floats on the upper layer of the mud, and the sediment settles At the bottom of the reactor, water is placed in the middle layer;
[0014] c. Add neutralizing agent: add inorganic acid to the reactor to neutralize the alkalinity of the cationic surfactant;
[0015] d. Add clear water to the mud from the bottom of the reactor, and discharge oil from the upper end of the reactor. When the oil is discharged and clear water appears, stop injecting water into the reactor, open the discharge va...
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The invention discloses a separation technology in chemical industry, in particular is a method and a separating agent for separating petroleum from petroleum oil sludge, wherein the method includes the following steps: a. addition of clean water and oil sludge: the clean water and oil sludge are added into a reactor, after that stirred to disperse the oil sludge in the clean water; b. addition of demulsifier: the aqueous solution of demulsifier is added to suspension slurry, and stirred to separate the oil and sediment from water; c. addition of neutralizing agent: the inorganic acid is added into the reactor to neutralize the basic cation surfactant; d. separation of oil, water and segment: water is added into the reactor to exhaust the oil and slurry, and the water and the segments are separated after deposition. The oil sludge separation reaction of the invention is rapid, and the water is easy to treat and can be reused, and the no pollution to environment is produced; the used demulsifier and neutralizing agent is easy to obtain and has low cost; and the invention is suitable for the field of separating petroleum from the petroleum oil sludge.
Description
technical field [0001] The invention proposes a product separation technology in the chemical industry, specifically a method and a separation agent for separating petroleum from petroleum sludge. Background technique [0002] Before the present invention proposes, the method for separating petroleum from petroleum sludge usually heats the sludge, then adds a separating agent, settles and separates, obtains petroleum, and discharges sewage and sludge. The separating agent used is usually nonionic, cationic, anionic or their mixed surfactants. Separating agent is often added in excess and dissolves in the water body, making it difficult for water to be clarified and causing water pollution. Furthermore, the separating agent made of synthetic polymers is not easy to degrade in sludge and water, causing artificial pollution. Contents of the invention [0003] In order to overcome the disadvantages of complicated process of separating oil from oil sludge, long reaction and c...
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Inventor 刘关生
Owner 辽宁东野环保产业开发有限公司