A kind of oil sludge modifier and its preparation method and application

A modifier and oil sludge technology, applied in chemical instruments and methods, sludge treatment, petroleum industry, etc., can solve the problems of low treatment efficiency, environmental re-pollution, high investment cost, etc., to increase specific surface area, content distribution The ratio is reasonable and the effect of increasing the calorific value

Active Publication Date: 2021-06-18
哈尔滨工大环能科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The existing methods for treating oily sludge mainly include: incineration, coking, landfill, extraction, pyrolysis, solidification, chemical demulsification and biological treatment, etc. Although these treatment methods can be used to a certain extent Recycling and utilization of useful substances in oil sludge, but it will cause re-pollution to the environment, and requires a lot of investment, and there are problems of large investment and low treatment efficiency in the treatment of oily sludge pits
Chinese patent application CN201710309039.5 discloses a sludge modifier and a method for converting sludge into a new type of regenerative solid fuel. Although the patent application can chemically modify the sludge, it can convert the sludge into However, the regenerated solid fuel generated in this patent application still has a high content of heavy metals leached from the fly ash produced after combustion and the content of toxic and harmful substances such as dioxins, which will still cause re-pollution to the environment. Problem; Fundamentally speaking, the existing technology has not achieved the harmless treatment and resource utilization of oil sludge

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  • A kind of oil sludge modifier and its preparation method and application
  • A kind of oil sludge modifier and its preparation method and application
  • A kind of oil sludge modifier and its preparation method and application

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preparation example Construction

[0046] The present invention provides the preparation method of the oil sludge modifier described in the first aspect of the present invention in the second aspect, described method comprises the steps:

[0047] (1) Mix the methacryloyloxyethyl chloride, the dimethyl diallyl chloride, the acrylamide and the carboxymethyl cellulose uniformly (for example, stir and mix uniformly), to obtain the curing agent;

[0048] (2) Add the auxiliary material, the calcium oxide, the bentonite and the cement to the curing agent obtained in step (1) and mix them uniformly (for example, stir and mix uniformly) to obtain the oil sludge modifier.

[0049] The preparation process of the sludge modifier described in the present invention is simple, low in cost, and less in energy consumption. Treating the sludge with the sludge modifier requires simple equipment, simple operation, low energy consumption, low cost, and does not produce Second muddying.

[0050] According to some preferred embodim...

Embodiment 1

[0062] ① Mix methacryloyloxyethyl trimethyl ammonium chloride, dimethyl diallyl ammonium chloride, acrylamide and carboxymethyl cellulose in a mass ratio of 40%: 25%: 25%: 10% Evenly, to obtain a curing agent.

[0063] ② Add auxiliary materials (straw), calcium oxide, bentonite and cement to the curing agent obtained in step ① and mix uniformly to obtain a sludge modifier; wherein, the auxiliary materials, the curing agent, the calcium oxide, the The mass ratio of said bentonite and said cement is 66.5%: 16.5%: 6%: 9%: 2%.

[0064] ③ mixing waste oil and dewatered sludge (moisture content 15%) to obtain primary mixed sludge with an oil content of 40%, then adding the sludge modifier obtained in step ② to the primary mixed sludge and mixing evenly to obtain Pretreated oil sludge; wherein, the mass ratio of the primary mixed oil sludge to the oil sludge modifier is 100:20; wherein, the waste oil and the dewatered sludge can, for example, be treated with the layered oil sludge d...

Embodiment 2

[0068] Embodiment 2 is basically the same as Embodiment 1, the difference is:

[0069] ① Mix methacryloyloxyethyl trimethyl ammonium chloride, dimethyl diallyl ammonium chloride, acrylamide and carboxymethyl cellulose in a mass ratio of 35%: 25%: 25%: 15% Evenly, the curing agent is obtained.

[0070] ② Add auxiliary materials (straw), calcium oxide, bentonite and cement to the curing agent obtained in step ① and mix uniformly to obtain a sludge modifier; wherein, the auxiliary materials, the curing agent, the calcium oxide, the The mass ratio of said bentonite and said cement is 50%: 27%: 6%: 12%: 5%.

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Abstract

The invention relates to an oil sludge modifier and its preparation method and application. The oil sludge modifier contains the following components in mass percentage: auxiliary materials, 50-66.5%; curing agent, 13-27.5%; calcium oxide, 3-10%; bentonite, 3-15%; cement, 0.3-5%; auxiliary materials It is agricultural and forestry organic waste and / or industrial solid waste. The method is as follows: uniformly mix methacryloyloxyethyl chloride, dimethyl diallyl chloride, acrylamide and carboxymethyl cellulose to obtain a curing agent; add auxiliary materials, calcium oxide , bentonite and cement and mix uniformly to obtain a sludge modifier. The oil sludge modifier in the present invention can fully realize the harmless, clean and resourceful treatment of the oil sludge in the oily sludge in the oil sludge modification treatment, and the fly ash produced after the oil sludge fuel block is burned is leached. The contents of heavy metals and dioxins are extremely low, and can be discharged directly without secondary treatment.

Description

technical field [0001] The invention relates to the technical field of oily sludge modification, in particular to an oily sludge modifier and its preparation method and application. Background technique [0002] With the development of the petroleum industry, the output of oily sludge is increasing. Oily sludge, that is, oily sludge sand, refers to a large amount of oily solid waste produced in the process of crude oil extraction, gathering, refining, etc., and is generally divided into oily sludge from oilfields and oily sludge from petrochemical industries (mainly refineries) mud. Oilfield oily sludge includes oily sludge on the ground during oilfield development, oil pits for centralized storage of oily waste, oily sludge at the bottom of tanks during production and operation of combined stations, and oily sludge during operation of sewage stations. [0003] Oily sludge refers to the mixture of crude oil or refined oil mixed with soil or other media, and the oil in it c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L10/00C10L9/10C02F11/00
CPCC02F11/00C02F11/008C10L9/10C10L10/00
Inventor 薛岩邱微
Owner 哈尔滨工大环能科技有限公司
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