Biofuel is a clean and renewable energy source. It is a renewable diesel fuel made from plant oil crops, wild oil plants, aquatic plant oils such as engineering microalgae, animal oils, food waste oil and other raw materials through the transesterification process. It is a high-quality substitute for oil and diesel, also known as "renewable oil". Biofuel supply is not controlled by OPEC, not restricted by mineral reserves, inexpensive and stable. It plays an important role in the process of national energy security and environmental protection upgrading. Biofuel is a typical "green energy". To develop biofuel is of great strategic significance for sustainable economic development, promoting energy substitution, reducing environmental pressure and controlling urban air pollution. GN decanter centrifuge and disc separator play an irreplaceable role in the process of biofuel processing. It can be used not only for solid-liquid separation, but also for liquid phase clarification, and different density liquid-liquid separation, so as to obtain better biofuel and meet the requirements of fuel using indicators.
Equipment for Biofuel Industry
| Decanter Centrifuge |
GN has 2 phase decanter centrifuge and 3 phase decanter centrifuge, both of which can be applied to different process targets in the biofuel production. GN 3 phase decanter centrifuge is commonly used to process the raw materials before esterification and 3 phase separation of free fatty acids, glycerol, and salt precipitates (such as potassium sulfate in glycerol treatment). The 2 phase decanter centrifuge is often used for rewashing salt precipitates, such as the separation of potassium sulfate produced in glycerol treatment. |
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| Disc Stack Separator |
GN has 2 phase disc stack separator and 3 phase disc stack separator. 2 phase disc stack separator is mainly used to clarify solids in the liquid phase, while 3 phase disc stack separators can separate liquid with different densities, at the same time, discharge the solid residue. In the biofuel production process, three-phase disc stack separator is usually used to separate glycerin water from fatty acid esters and biodiesel-washing. 2 phase clarifying disc stack separators are used to separate solid impurities from biofuel. Compared with the decanter centrifuge, the advantage of disc stack separator is that the separated biofuel is cleaner and more thorough. The disadvantage is that it is not suitable for materials with high solid content or materials with very large particles. Therefore, the decanter centrifuge and the disc stack separator are often used in the processes before and after in biofuel production to achieve the comprehensive optimal goal. |
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Biofuel Industry Common Application
| Biofuel extraction and recovery: fuel ethanol, distiller grains, waste wheat grains |
Fuel ethanol processing technology: corn/cassava, grinding, saccharification, hydrolase, fermentation, crude distillation (fuel ethanol), distiller's grains, separation and dehydration (distiller's grains as feed), fine distillation, condensation, fuel ethanol. In the separation and dehydration process, GN C series high-speed decanter centrifuge is used to dehydrate the distiller's grains after crude distillation. C series high-speed decanter centrifuges are more thorough in the separation and dehydration of distiller's grains after crude distillation, with low alcohol content in residue and high alcohol recovery. At the same time, the energy consumption of the follow-up drying slag is low, which saves the cost. In the process of biofuel processing, GN disc stack separator is widely used in methyl ester, glycerin, catalyst, soap removal, methanol, water washing methyl ester, fatty acid extraction, glycerin desalination and other fields. |
