Harmless disposal and utilization method of waste mineral oil

A technology of waste mineral oil and substances, applied in the details of gasification devices, gasification process, petroleum industry, etc., can solve the problems of wastes that cannot be disposed of, high cost, secondary pollution, etc., and achieve efficient and harmless disposal and resource utilization Utilization, no risk of secondary pollution, and stable properties

Active Publication Date: 2018-07-10
ZHEJIANG FENGDENG CHEM
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0012] Aiming at the shortcomings of the existing waste mineral oil disposal process, such as high technical requirements, high cost, inability to dispose of generated waste, and easy to cause secondary pollution, the present invention provides a harmless disposal and utilization method of waste mineral oil

Method used

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  • Harmless disposal and utilization method of waste mineral oil

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Embodiment 1

[0074] This embodiment provides a method for harmless disposal and utilization of waste mineral oil, which specifically includes the following steps:

[0075] (1) Mix waste gasoline and potassium lignosulfonate in a mass ratio of 100:1.0 to prepare slurry;

[0076] (2) Mix the slurry and coke obtained in step (1) uniformly in a mass ratio of 100:100 to prepare a coal-water slurry with a solid mass content of 48% and a viscosity of 1250mPa·s;

[0077] (3) Spray the coal-water slurry obtained in step (2) evenly into the gasification furnace with a special nozzle, and perform gasification at a temperature of 1700°C and a pressure of 0.5 MPa in an oxygen-containing atmosphere with an oxygen volume content of 99.8% React for 20s to obtain gaseous products and liquid slag;

[0078] (4) Chill the gaseous product and liquid slag obtained in step (3) to 250°C within 5s to obtain mixed gas and glassy slag respectively; separate and obtain glassy slag with stable properties and no risk ...

Embodiment 2

[0081] This embodiment provides a method for harmless disposal and utilization of waste mineral oil, which specifically includes the following steps:

[0082] (1) Mix waste diesel oil and potassium lignosulfonate in a mass ratio of 100:0.5 to prepare slurry;

[0083] (2) Mix the pulping liquid and charcoal obtained in step (1) uniformly in a mass ratio of 100:50 to prepare a coal-water slurry with a solid mass content of 32% and a viscosity of 300mPa·s;

[0084] (3) The coal-water slurry obtained in step (2) is evenly sprayed into the gasification furnace with a special nozzle, and gasified at a temperature of 1400°C and a pressure of 1.0 MPa in an oxygen-containing atmosphere with an oxygen volume content of 99.5%. React for 10s to obtain gaseous products and liquid slag;

[0085] (4) Chill the gaseous product and liquid slag obtained in step (3) to 150°C within 2s to obtain mixed gas and glassy slag respectively; separate and obtain glassy slag with stable properties and no...

Embodiment 3

[0088] This embodiment provides a method for harmless disposal and utilization of waste mineral oil, which specifically includes the following steps:

[0089] (1) heating the waste oil sludge to make it melt, and then mixing it with sodium sulfonated humate and water in a mass ratio of 100:4.0:10 to prepare a slurry;

[0090] (2) Mix the pulping liquid obtained in step (1) with charcoal in a mass ratio of 100:200 to prepare a coal-water slurry with a solid mass content of 65% and a viscosity of 1500mPa·s;

[0091] (3) Spray the coal-water slurry obtained in step (2) evenly into the gasification furnace with a special nozzle, and perform gasification at a temperature of 1500°C and a pressure of 4.0 MPa in an oxygen-containing atmosphere with an oxygen volume content of 99.6%. React for 15s to obtain gaseous products and liquid slag; separate and obtain glassy slag, cooling water and slag flushing water with stable properties and no risk of pollution to the environment; the glas...

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Abstract

The invention provides a harmless disposal and utilization method of waste mineral oil. The method comprises the following steps of mixing the waste mineral oil and auxiliary agents to obtain slurry;mixing the prepared slurry with carbon source substances for preparing water-coal slurry; performing gasification reaction on the water-coal slurry in an oxygen-containing atmosphere at 1100 to 1700 DEG C and 0.5 to 4 MPa to obtain a gaseous product and a liquid-state molten slag; performing quenching separation on the gaseous product and the liquid-state molten slag to obtain mixed gas and glass-state slag. By aiming at the characteristics of the waste mineral oil, the water-coal slurry gasification and high-temperature melting cooperated waste treatment technology is used, so that the wastemineral oil realizes the high-temperature decomposition in a short time; the contained C, H, O, N and Cl are totally converted into the gaseous product; after the purification treatment, synthesis gasusing CO and H2 as major ingredients is obtained; the method can be used for producing basic chemical engineering raw materials or fuel gas of various high-added-value products; the harmless treatment and resource utilization f the waste mineral oil can be realized.

Description

technical field [0001] The invention belongs to the field of harmless disposal and resource utilization of industrial waste liquid and / or waste residue, and in particular relates to a method for harmless disposal and utilization of waste mineral oil or waste containing mineral oil. Background technique [0002] Waste gasoline, diesel oil, lubricating oil, hydraulic oil, kerosene, sludge, etc. are commonly referred to as waste mineral oil. The "National Hazardous Waste List" (2016 Edition) clearly stipulates that waste mineral oil that is not suitable for the original purpose, oil sludge, oil feet, sediments produced during the storage of mineral oil, machinery, etc. Oil replacement and cleaning oil (mud) for power transportation and other equipment, waste oil (slag) produced in the process of metal rolling and mechanical processing, waste oil and sludge produced in the process of oily wastewater treatment, produced in the process of oil processing and regeneration Both oil ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32C10J3/46C10J3/72C10J3/84
CPCC10J3/46C10J3/72C10J3/84C10J2200/152C10J2300/0959C10L1/324
Inventor 李亚平陈建沈溪辉程燕陶锦华盛顺利王明霞何先标唐量华
Owner ZHEJIANG FENGDENG CHEM
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