Comparison Of DOING's Two Waste Oil Distillation Technologies

Waste oil distillation is a key technology for converting waste oil and other contaminants into high-value diesel fuel, helping companies achieve resource recycling and environmental compliance. Henan DOING Company possesses two core technologies: acid-alkali washing type and solid catalyst type.

We made a comparison of these two waste oil distillation technologies, helping you get a knowledge about the main differences:

1. Acid-Alkali Washing Waste Oil Distillation Process：

Traditional Acid-Base Washing Distillation Process: After distillation, the oil and gas are cooled to become light oil, and then through acid washing + alkali washing to remove impurities, resins, pigments, etc., and then undergo decolorization, filtration, etc., to obtain finished oil.

This is the traditional process of DOING waste oil distillation equipment. This process generates acid and alkali waste liquid, which requires additional treatment. Each furnace needs to replace the acid and alkali liquid.

waste oil to diesel distillation machine Acid-alkali washing waste oil distillation process

2. Solid Catalyst Waste Oil Distillation Process：

After heating and distilling the waste oil to produce oil and gas, it directly enters the catalytic tower without cooling, and undergoes cracking and purification under the action of the solid catalyst. The catalyzed oil and gas then undergo fractionation, condensation, decolorization, etc., to obtain diesel and other products.

Based on this waste oil distillation process, there is no need to use acid and alkali solutions, avoiding chemical waste and secondary pollution.

waste oil to diesel equipment Solid catalyst waste oil distillation process

Consult this technical comparison table for a quick overview of the differences between solid and liquid catalyst technologies for refining waste oil into diesel:

Features	Acid-Alkali Washing Process	Solid Catalyst Distillation Process
Processing volume	100kg-14+tpd/set	7-14+tpd/set
Key Consumables	Sulfuric acid, caustic soda	DOING patented solid catalyst
Compliance	More suitable for India and some African countries, as acid and alkali solutions are readily available,	Suitable for most countries, especially South America and Southeast Asia, with strong environmental compliance.
Automation & Operation	Moderate degree of automation, some steps require manual intervention	Highly automated, intelligent control, easy to operate.
Production Cycle	Relatively standard	Highly efficient and fast
Initial Investment	Relatively low investment threshold	Relatively high investment costs

waste oil distillation plant Comparison of traditional style and new style waste oil distillation equipment

Acid-alkali washing technology emphasizes cost-effectiveness, while solid catalyst technology emphasizes high efficiency. Both offer high yields (80-85%) and safe designs; the choice depends on your budget and environmental needs. The above provides a detailed introduction to DOING's two waste oil distillation technologies and their differences. No matter which waste oil to diesel distillation technology you prefer, please contact us for more information!

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Comparison Of DOING's Two Waste Oil Distillation Technologies

1. Acid-Alkali Washing Waste Oil Distillation Process：

2. Solid Catalyst Waste Oil Distillation Process：

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