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A clean and environmentally friendly method for viscosifying, separating and recycling waste oil

A separation and recycling, clean and environmentally friendly technology, applied in the recovery of fat oil/fatty acid from waste, fatty substance recovery, recycling technology and other directions, can solve the problems of environmental pollution, high recovery rate, low quality of waste oil, etc. The effect of simplifying the recycling process

Active Publication Date: 2021-07-02
DONGYING ZHENGFENG NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects that the existing waste oil recovery pollutes the environment and the quality of recovered waste oil is low, the present invention proposes a clean and environmentally friendly method for separating and recycling waste oil by increasing viscosity. This method uses a nucleating agent to self-polymerize oil into high-viscosity oil, directly Physical separation and recovery, high recovery rate, high quality, residual water can be directly removed by centrifugation, which greatly simplifies the process of waste oil recovery
The recycling process is clean and pollution-free

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A clean and environmentally friendly viscosifying method for separating and recycling waste oil, comprising the following steps:

[0026] (1) Ultrasonicize the waste oil for 15 minutes at a power of 300~400W, then heat the waste oil at 80°C to filter, filter out large particles of impurities, and then separate and remove most of the water in the clarifier to obtain primary oil;

[0027] (2) Add organic solvent kerosene to the primary oil to dilute to a viscosity of 500cp, and then select an argon plasma activation treatment agent to reduce the concentration and viscosity of waste oil, and homogenize waste oil molecules to increase the reactivity of waste oil molecules , to obtain activated waste oil;

[0028] (3) Put the activated waste oil into the container, add nano-scale nucleating agent nano-scale talc powder, the dosage is 3% of the primary oil mass, add catalyst zinc glutarate, the usage amount is 0.05% of the primary oil mass, vacuumize, Then heat up to 60°C an...

Embodiment 2

[0031] A clean and environmentally friendly viscosifying method for separating and recycling waste oil, comprising the following steps:

[0032] (1) Ultrasonicize the waste oil for 30 minutes at a power of 300~400W, then heat the waste oil at 100°C to filter, filter out large particles of impurities, and then separate and remove most of the water in the clarifier to obtain primary oil;

[0033] (2) Add organic solvent turpentine to the primary oil, adjust to a viscosity of 300cp, and then select a helium plasma activation treatment agent to reduce the concentration and viscosity of waste oil, and homogenize waste oil molecules to increase the reactivity of waste oil molecules , to obtain activated waste oil;

[0034](3) Put the activated waste oil into the container, add nano-scale calcium carbonate as a nano-nucleating agent, the dosage is 4% of the primary oil quality; add catalyst zinc adipate, the dosage is 0.02% of the primary oil quality, vacuumize, Then heat up to 80°C...

Embodiment 3

[0037] A clean and environmentally friendly viscosifying method for separating and recycling waste oil, comprising the following steps:

[0038] (1) Ultrasonicize the waste oil for 15 minutes at a power of 300~400W, then heat the waste oil at 50°C to filter, filter out large particles of impurities, and then separate and remove most of the water in the clarifier to obtain primary oil;

[0039] (2) Add the organic solvent propylene carbonate to the primary oil to adjust the viscosity to 500cp, then plasma activate the treatment agent to reduce the concentration and viscosity of the waste oil, and homogenize the waste oil molecules to increase the reactivity of the waste oil molecules , to obtain activated waste oil;

[0040] (3) Put the activated waste oil into the container, add nano-nucleating agent nano-scale mica, the dosage is 4% of the primary oil mass; add the catalyst monobutyltin oxide, the usage amount is 0.05% of the primary oil mass, vacuumize, Then heat up to 100°...

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Abstract

The invention relates to the technical field of waste oil recovery and preparation, in particular to a clean and environmentally friendly method for thickening, separating and recovering waste oil. In the present invention, the waste oil is first heated and filtered to remove large particle impurities, and then most of the water is separated and removed in the clarification tank; further, the molecular chains of the waste oil are homogenized and activated through organic solvent dilution and plasma treatment; Nucleating agent, catalyst, the waste oil molecules are homogenized in the vacuum container, and under the conditions of the catalyst and the nucleating agent, the molecules gather around the nucleating agent to form long-chain, viscous oil; then high-speed centrifugal dehydration to obtain high-quality recycled oil, The recovery process of the present invention is clean and pollution-free, and the oil is self-polymerized into high-viscosity oil through the nucleating agent, the recovery rate and quality are high, and the residual water can be directly removed by centrifugation, which greatly simplifies the process of waste oil recovery, and the recovered oil can be used as Base oil for lubricants.

Description

technical field [0001] The invention relates to the technical field of waste oil recovery and preparation, in particular to a method for cleaning, environmental protection, viscosification, separation and recovery of waste oil. Background technique [0002] With the increasing shortage of petroleum resources, the regeneration of waste oil has become a strategic issue for the development of circular economy. It not only has the significance of environmental protection, but also can realize the recycling of resources. Existing waste oils include various waste lubricating oils, kitchen waste oils, industrial processing waste gas waste oils, and the like. Therefore, the regeneration potential of waste oil is huge. Aiming at the recovery and utilization of waste oil, there is currently a sulfuric acid-clay method. Although this process can separate the oil, the acid residue causes serious secondary pollution to the environment; the solvent refining process does not use sulfuric...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B13/00
CPCC11B13/00Y02W30/74
Inventor 陈庆曾军堂
Owner DONGYING ZHENGFENG NEW ENERGY TECH
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