Used engine oil recycling project 60000 tons per year

Project description:

Location: Yingxian, Shanxi, China

Raw materials: Used engine oil and used lubricants

Products: base oil SN75, SN150, SN200, SN350, fuel oil

Designed processing capacity: 50000 tons per year

Maximum processing capacity: 70000 tons per year

Process: Sediment, dehydration by flash evaporation, vacuum distillation, NMP solvent extraction, NMP solvent recovery

Clay treatment: not necessary

Heating method: natural gas tube heater for vacuum distillation and natural gas thermal oil boiler for solvent recovery

Operation temperature: 386 ℃ for used engine oil vacuum distillation and 150℃ for solvent recovery

Pressure: 2000Pa for vacuum distillation, 200Pa for solvent recovery

Color: SN150 0.5-1.0, SN350, 1.0-1.2

Solvent NMP loss: less than 0.2%

Energy consumption: 60 cubic meters of natural gas for one ton of used engine oil

Control system: DCS and GDS

Continuous operation period: 45 days

Main features of this project：

1． It overcomes the common problem that used engine oil is prone to coking when directly heated by a tube furnace. 

2． It overcomes the common problem of easy blockage of distillation columns and heat exchangers. 

3.   The energy consumption and operating costs are currently the lowest among similar projects in China. 

4． Recycled base oil has better quality and does not require supplementary refining with clay during the refining process. 

5. The solvent loss rate is currently the lowest among similar projects in China. 

6. It solves the common problem of unclear interface between solvent and base oil during solvent refining process. 

7. Highly automated.