Industrial Oil Reconditioning With Selective Impurity Separation

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Solution Overview

Problem

Current methods for purifying industrial oils often risk removing beneficial additives along with impurities, limiting the reuse of industrial oils and inefficiently managing resource consumption.

Innovation Solution

A method and system utilizing a liquid separation booster that attracts impurities but not specific additives, allowing for effective reconditioning of industrial oils by separating impurities while retaining additives, and an oil recovery system that includes additive replenishment based on depletion analysis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional purification methods are used to remove impurities, then oil quality is improved, but the cost of oil replacement increases due to additive loss

Engineering Contradiction:
Improveoil qualityVSAvoidoil service life
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The invention applies discarding and recovering by selectively discarding only the harmful impurities while recovering and retaining the beneficial additives in the oil. The separation booster enables this selective process, allowing the oil to maintain its functional properties and extend service life without requiring complete replacement.

Inventive Principle:
Principle #34Discarding and recovering

2Reliability

If separation aids are used to capture impurities, then purification is achieved, but the complexity of the purification process increases

Engineering Contradiction:
Improvepurification effectivenessVSAvoidpurification process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The separation booster enables self-service purification by automatically differentiating between impurities and additives through its selective attraction properties. The system performs the separation function autonomously based on the chemical characteristics of different components, reducing the need for complex external control mechanisms and simplifying the overall purification process.

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables the effective reconditioning and prolonged reuse of industrial oils by selectively removing impurities without additives, optimizing resource use and reducing environmental impact.

Implementation Method 1

a liquid separation booster is used which is specifically designed such that it will attract impurities but not additives

Methodology Applied
Scientific EffectAdsorption: Adsorption

Data Source

PatentEP3921053B1A method and system for circular use of industrial oil
Publication Date: 2024.07.03 SKF RECONDOIL AB
  • EP3921053B1 patent drawingFigure 1a~1b
  • EP3921053B1 patent drawingFigure 2
  • EP3921053B1 patent drawingFigure 3

AI summary

A method for circular use of industrial oil and an oil recovery system, said method comprising reconditioning of a used industrial oil, said reconditioning comprising the steps of: - adding a liquid separation booster to a used industrial oil, wherein said separation booster is designed to attract impurities in the used oil and to be passive onto, i.e. not attracting, at least one specific additive in the oil; - separating out the separation booster with attracted impurities from the used industrial oil while leaving the at least one specific additive in the oil.