Application
The biodiesel production equipment can be used for oil refining from organics such as waste animal and vegetable oil (used cooking oil), straw, food waste etc.

The production process can be divided into four steps: pretreatment, esterification, interesterification and biodiesel refining.

1. Pretreatment
During this step, we carries out rough filtration, refined filtration and falling film drying treatment of oil material to remove the water and impurities, thus getting standard oil which has uniform physical properties.

2. Pre-esterification
Add the standard oil material, glycerin and catalyst into the esterification reactor according to certain proportion and flow rate. Then open the heating device and adjust the technical parameters as required. The reaction will continue for 1-3 hours in vacuum state. The water generated during the reaction will be discharged to the external of the vessel in time. The product will be transferred to the esterification reaction and settling tank after passing the sampling test.

3. Interesterification
Meter the semi-product of pre-esterification, methanol and catalyst respectively and set the feeding parameters. Then synchronously add the semi-product, methanol and catalyst into the interesterification tubular reactor. Open the heating device and adjust the technical parameters as required. We will carry out sampling during heating at different position at any time. Then it can realize continuous discharging after passing the sampling test. It can also realize online monitoring. The reaction finished product should go through methanol recovery. The distilled methanol will flow into methanol storage tank after the condensation in condenser. The reaction finished material will go through settling separation in the temporary storage tank.

4. Biodiesel refining
The distilling apparatus of biodiesel is a compound self shunt reduced pressure distiller. The distillation system is a craft of continuous distillation adopting heat transfer oils heating, so that it can realize crude methanol distillation under vacuum state. The process flow includes: preheating carried out by heat exchange between the cold material and the overhead gas phase, further heating of heat exchanging finished material by heater to get required temperature, distillation of heating finished material in the tower bottom (reflux ratio controlled by distillation control), collection of main components of tower top gas phase by receiving tank after condensation caused by heat exchanging, condensation of light components carried out by overhead condenser and collection by another receiving tank, heating of heavy components at the tower bottom carried out by reboiler, separation of the heating finished product carried out by the vice tower, collection of the product by heavy components receiving tank.

1. Glycerin
2. Catalyst
3. Pretreatment
4. Waste animal and vegetable oil
5. Glycerin recycling
6. Esterification
7. Heating of heat transfer oils
8. Micro negative pressure drainage
9. Impurities and small amounts of glycerin
10. Static separation
11. Triglyceride

12. Catalyst
13. Interesterification
14. Methanol
15. Flashing dealcoholization
16. Demethanol recovery
17. Crude glycerin
18. Can be used as fuel oil
19. Reduced pressure distillation
20. Non-condensable gas (burn)
21. Biodiesel
22. Bioasphalt

1. Advanced craft: the biodiesel production equipment doesn't adopt sulfuric acid as catalyst, thus solving the problem thoroughly that the equipment will be corroded by sulfuric acid. And the sulphur content of the products can meet the standard of EU.

2. Low investment: because there is no reaction between methanol and free fatty acid, there will be no water in the methanol, thus reducing the investment in equipment.

3. Environment friendly: by not using inorganic acid, the emission of acid water and acid asphalt is greatly reduced and thus reducing the environmental pollution relatively.

4. Energy saving: part of the glycerin can be continuously recycled, thus saving the production cost. Meanwhile, the products and raw materials can go through continuous heat exchange which can realize heat energy recycling. So the equipment can greatly save cost.

5. High efficiency: the independently developed turbulent tubular reactor can realize low temperature continuous reaction. The product quality can be regulated online whenever necessary, thus thoroughly solving the problem that the product of tank reactor is quite unstable.

1. We just provide main equipment without pump, valve, motor and structural parts generally. If our customers really need the above units, we can provide with procurement service of the above units. But the thermal insulation material, anti-corrosion material, civil engineering material, wires and cables, installation accessories, public facilities in the factory (storage tank, water cooling tower and tank field) and some other materials are not included. The biodiesel plant covers an area of about 20,000 square meters. There should be 5-6 workers in each shift to carry out operation in the workshop. We can provide equipment and technology with annual yield of 2000 tons, 5000 tons, 10000 tons, 20000 tons, 30000 tons, 50000 tons etc.

2. The service life of main pump and valve is 8-10 years; the service life of reactor and distillation column is 5-12 years which will be affected by the pH value, saponification value and some other factors of the raw material; the service life of vulnerable part is 0.5-1 years. If our customers need some accessories, the common parts and standard parts can be purchased in the local market nearby. The vulnerable part which is produced by our factory will be delivered along with the main equipment for free.

3. The cost and benefit of the biodiesel plant is decided by neccessity of pretreatment of raw material, workload of pretreatment, quality of raw material, content of water and impurities, saponification value, purchase cost of raw material, cost of catalyst, methanol, water and electricity, labor cost, type of fuel etc. The benefit changes along with the said factors. We can provide cost-benefit analysis with the related information provided by our customers.

4. We can send our engineers to the factory of our customers for installation guide and workers training.

5. If there is any technical issue you can't solved, we can provide real-time telephone or video guidance. If the problem can still not be solved, we can send experts on site to assist in solving the problem.