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A method for preparing lightweight ceramsite by coupling oily sludge at the bottom of high-viscosity tanks with solid waste from coal chemical industry

A lightweight ceramsite, high-viscosity technology, applied in the production of clay products, ceramic products, ceramic materials, etc., can solve the problems of secondary pollution, high energy consumption, poor economy, etc. Disposal, the effect of reducing the amount of disposal

Active Publication Date: 2021-02-02
SHAANXI YANCHANG PETROLEUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention overcomes the problems of high risk, high energy consumption, easy secondary pollution, low resource utilization rate, poor economy, difficulty in large-scale industrialization, low degree of comprehensive utilization, and high colloid and heavy quality in the oil sludge existing in the traditional oil sludge treatment method. Oil pollution cannot be harmlessly treated and other problems, providing a safe, simple process, and excellent economical oily sludge coupled with coal chemical industry solid waste safety, resource utilization and complete harmless treatment of high-viscosity tank bottom oil Method for preparing lightweight ceramsite by coupling sludge with coal chemical solid waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Taking the oily sludge at the bottom of a crude oil settling tank of a joint station of an oil production plant in northern Shaanxi as an example, its initial water content is 40%, and it contains 35% organic matter, of which gasoline and diesel components with a boiling point below 350 °C account for 12%, and heavy oil components It accounts for 13%, and the mud content is 25%.

[0027] The vertical steam fluidized furnace of the present invention has a material inlet hopper on the top of the tower, a material outlet on the bottom of the tower, and a screen-like tray, a rake arm and a rake arm drive device inside, and the rake arm drive device drives the rake The arm drives the sieve tray to rotate. The lower part of the vertical steam fluidized furnace is equipped with a multi-stage metal screen plate, the lower part of the rake arm is equipped with a steam ejector, and the outer wall of the vertical steam fluidized furnace is provided with an insulation layer.

[002...

Embodiment 2

[0038] Taking the oily sludge at the bottom of a crude oil settling tank of a joint station of an oil production plant in northern Shaanxi as an example, its initial water content is 40%, and it contains 35% organic matter, of which gasoline and diesel components with a boiling point below 350 °C account for 12%, and heavy oil components It accounts for 13%, and the mud content is 25%.

[0039] The specific processing method is as follows:

[0040] (1) The oily sludge at the bottom of the high-viscosity tank is dehydrated and reduced by a plate-and-frame filter press, and used as a material for treatment, with a moisture content of 20%;

[0041] (2) Chemical detackification: Spray chemical detackifier in the sludge storage tank. The chemical detackifier contains 5% organic amine and 1% surfactant. It is a fluorine-containing high-efficiency surfactant. Amines and surfactants decompose the wax and asphaltene on the surface of the oil sludge to reduce the surface viscosity. At...

Embodiment 3

[0047] Taking the oily sludge at the bottom of a crude oil settling tank of a joint station of an oil production plant in northern Shaanxi as an example, its initial water content is 40%, and it contains 35% organic matter, of which gasoline and diesel components with a boiling point below 350 °C account for 12%, and heavy oil components It accounts for 13%, and the mud content is 25%.

[0048] The specific processing method is as follows:

[0049] (1) The oily sludge at the bottom of the high-viscosity tank is dehydrated and reduced by a plate-and-frame filter press, and used as a material for treatment, with a moisture content of 20%-30%;

[0050] (2) Chemical detackification: Spray chemical detackifier in the sludge storage tank. The chemical detackifier contains 15% organic amine and 3% surfactant. It is a fluorine-containing high-efficiency surfactant. Amines and surfactants decompose the wax and asphaltene on the surface of the oil sludge to reduce the surface viscosity...

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Abstract

The invention belongs to the technical field of oily sludge treatment and the technical field of using chemical waste to prepare ceramsite, and in particular relates to a method for preparing lightweight ceramsite by coupling oily sludge at the bottom of a high-viscosity tank and coal chemical industry solid waste. It includes the following steps: the treatment process includes a number of steps such as weight reduction, chemical detackification, physical safety detackification, screening, granulation and the like. The method for preparing lightweight ceramsite by coupling high-viscosity tank bottom oily sludge with coal chemical solid waste described in the present invention overcomes the disadvantages of high risk, high energy consumption, and high secondary pollution in the traditional high-viscosity tank bottom oily sludge treatment process. At the same time, it can effectively reduce the amount of coal chemical waste landfilling and transform it into light-weight materials that can be used in buildings that meet national standards. The sediment contained in the oil sludge increases the Al content of the ceramsite 2 o 3 、Si 2 o 3 The content of metal oxides and other metal oxides effectively improves the cylinder compressive strength of ceramsite, realizes the separation and disposal, safety, resource utilization and harmless treatment of the oil sludge system, and achieves sustainable economic development.

Description

technical field [0001] The invention belongs to the technical field of oily sludge treatment and the technical field of using chemical waste to prepare ceramsite, and in particular relates to a method for preparing lightweight ceramsite by coupling oily sludge at the bottom of a high-viscosity tank and coal chemical industry solid waste. Background technique [0002] High-viscosity tank bottom oily sludge is a stable and colloidal system composed of petroleum and other organic matter, sediment, water, etc. The organic matter contained in it contains a large amount of Polycyclic aromatic hydrocarbons and harmful microorganisms are extremely harmful to the environment and human body. They have been listed as solid hazardous waste (HW08) in my country and must be treated effectively and harmlessly before they can be discharged. At present, the domestic existing methods for treating oily sludge can be summarized as follows: incineration, coking, landfill, land cultivation, solven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B33/132C04B33/135
CPCC04B33/1321C04B33/1352C04B38/009Y02P40/60
Inventor 李霁阳许磊屈文婷杨东元王青
Owner SHAANXI YANCHANG PETROLEUM GRP