I would like to ask about the purpose of adding alkali in the regeneration of used engine oil

It seems it shouldn’t be in the Workplace Communication (I’ve been trying hard) section.

Our company has been dedicated to professional research in the refinement of used engine oil into gasoline and diesel, as well as in the regeneration of base oils derived from such oil, for over a decade. Through repeated experiments and by drawing on advanced practices from both domestic and international sources, we have managed to overcome our weaknesses and now have developed continuous production equipment as well as technologies for the purification of used oil. This technology converts black and smelly waste oils such as used engine oil and plastic-based oils into diesel (or a fuel similar to diesel) through extraction, decolorization, and deodorization. It does not require heating or distillation, results in low losses and high yield of oil. It completely eliminates the safety and environmental issues associated with traditional methods of converting used engine oil into diesel, as well as other drawbacks such as dark-colored oil, high viscosity, high density, easy oxidation, strong odor, and significant differences in key quality parameters. A guarantee system for the efficient development of quality, scale, and efficiency in this project has been established. The production equipment is simple – no filtering devices are required, and high-temperature cracking or distillation is not needed, making the process safe and reliable. No acids or bases are used, so there is no emissions or pollution. The by-products obtained from the sedimentation of waste oil can be used as fuel for heating or in the production of waterproofing materials. The price is 3,800–4,500 yuan per ton. Waste engine oil can also be used to produce lubricant base oils with higher added value; the price of such lubricant base oils is 7,600–7,800 yuan per ton. A yield of 85%–92% of lubricant base oil can be obtained from one ton of waste engine oil. Cangzhou Tieniu Petrochemical Products Co., Ltd.; Mobile phone: 15303177558

Your patent has enabled you to make huge profits abroad; to date, there are no reports in the world of converting diesel without using heat with high-molecular-weight compounds