Waste oil distillation is an effective method for recovering waste engine oil, waste lubricating oil, tire/plastic pyrolysis oil, converting them into diesel, asphalt, and other useful products. The resulting diesel can be used in trucks, tractors, ships, generators, and heavy machinery.

Applications of waste oil refining into non-standard diesel

For customers interested in starting a waste oil recycling business, understanding the equipment included in a complete waste oil distillation production line and how each system affects oil yield, diesel quality, and operating costs is crucial.

Key Equipment and Advantages of a Waste Oil Distillation Production Line

A complete waste oil distillation equipment production line is not just a single machine. It typically consists of a feeding system, heating equipment, distillation reactor, catalytic equipment, condensation equipment, purification equipment, environmental protection system, and PLC control system.

1. Feeding System

The feeding system pumps waste engine oil into the distillation reactor. It typically includes oil pumps, piping, valves, and crude oil storage tanks. If the feedstock contains significant amounts of moisture or solid impurities, a pretreatment system can be added before distillation. Henan DOING Company can customize feeding and pretreatment systems according to customer feedstock requirements, thereby improving process stability and reducing operational problems.

2. Heating Equipment

The heating system provides a heat source for the distillation reactor. Fuel oil, natural gas or wood can be used. DOING can provide The plant often features double heating (conducting oil + direct fuel) to increase efficiency and oil yield (up to 85%~90%+ for engine oil).

Dual heating system of DOING

3. Distillation Reactor

The distillation reactor is the core equipment of the entire production line. Waste engine oil is heated in the reactor and converted into usable oil vapor at high temperatures. DOING distillation reactors are constructed from high-quality boiler steel and stainless steel, exhibiting excellent resistance to high temperatures and pressures. Furthermore, the vertical reactor design facilitates slag removal.

4. Catalytic Equipment

Catalytic systems are used to improve diesel quality during the distillation process. They help reduce off-odors, improve fuel color, and increase the value of the final product. DOING's waste oil distillation equipment offers two catalytic solutions: acid-base washing and solid catalyst. Acid-base washing is carried out in acid and alkali washing towers, which uses chemical liquids(commonly NaOH and H2SO4) to purify the waste oil feedstock. It's better to check if these chemicals are available at your local and the cost. While solid catalyst washing is performed in a catalytic converter. Customers can choose the appropriate solution based on their raw material requirements, investment budget, and final diesel quality requirements.

The differences between acid-base washing and solid catalyst

5. Condensation Equipment

Oil vapor is heated and then enters the condensation equipment, where it is cooled into liquid diesel. The cooling effect directly affects the oil recovery rate. DOING's waste oil distillation production line employs high-efficiency multi-stage condensers, such as vertical and horizontal condensers, to fully cool oil vapor, reduce oil vapor loss, and improve the final oil recovery rate.

6. Purification Equipment

The condensed diesel fuel requires further processing through a purification system. This system typically includes bleaching equipment and filters such as plate filters, leaf filters, and bag filters. Using DOING's purification system, diesel fuel with better color, lower odor, and fewer impurities can be obtained, making it more suitable for practical applications or sales.

7. Exhaust Gas and Flue Gas Treatment System

The waste oil distillation process generates some non-condensable gases and flue gas. These gases require appropriate treatment. DOING's production line can recover and reuse non-condensable gases as heating fuel, thereby reducing fuel costs. Simultaneously, the flue gas purification system reduces smoke, dust, and odor, making the entire process more environmentally friendly.

Refining distillation environmental protection systems

8. PLC Control System

The PLC control system is used to control and monitor the entire production line, including temperature, pressure, pumps, and motors. DOING's PLC control system makes operation simpler, safer, and more convenient. Operators can better understand the equipment's operating status and adjust the process promptly.

The various equipments in a waste oil distillation production line work together to determine the final oil yield, diesel quality, and overall operating costs. Henan DOING Company can provide customized complete solutions based on the customer's raw material type, processing volume, local fuel conditions, and diesel quality requirements. If you are considering a waste oil recycling project, please contact us for detailed equipment configuration and project suggestions.