The article analyzes possible methods of waste oil recycling. It emphasizes the advantages and disadvantages of each method.
regenerative technologies allow used oil to be reused.
In recent decades, with increased production and enterprises the amount of waste lubricants increase too. This increases the risk of environmental pollution: soil, air, water reservoirs. If we analyze the percentage of oil waste, we can see that the vast majority are waste lube oils (about 65%). Moreover, lubricating oil is considered the most environmentally unsafe substance among waste oils, due to its poor degradability and relatively slow evaporation.
Currently, the world produces about 20 million tons of waste lubricating materials annually. And only 15% of them are subjected to further processing. Collection and reuse of waste oil products in some countries are as follows:
- Germany – 55%;
- US – 45%;
- Switzerland – 43%;
- Russia – 35%.
Disposal of used oil products can be executed in one of the following ways:
- Processing with crude oil. This method is used for processing 25% of the total collected volume. The disadvantages of this approach has negative impact of waste lubricants on electric desalting plants.
- Using as boiler fuel component. About 45% of the total collected volume is utilized using this method. The main drawback of this method is air pollution caused by the combustion of toxic substances: heavy metals, chlorinated compounds, etc.
- Used for technological needs. They take about 19% of the total collection volume of waste lubricating oils. Waste oil is used for metal processing, in coal industry, for the lubrication of chains, for lifting equipment and road construction equipment.
- Regeneration (10% of the total volume). This method is most effective for processing waste lubricants. Its main advantage is the ability to use both large plants and GlobeCore plants with low productivity. GlobeCore regenerative technologies simplify the process of collection and transportation of waste oil, thereby reduce losses and makes it possible to reuse oil for its intended purpose.