METHOD FOR BIOLOGICAL INITIAL MATERIAL PURIFICATION Russian patent published in 2017 - IPC C09F1/02 C07C7/00 C10G3/00 C10L1/02 C11C1/08 C11B7/00 

FIELD: biotechnology.

SUBSTANCE: method for biofuel or biofuel components production includes: purification of biological feedstock selected from tall oil substances using a combination of a heater and evaporators including a heater selected from a combination of a heat exchanger and a flash unit, a falling film evaporator, a molecular distillation plateper and a thin film evaporator, and a series of three evaporators. The biological feedstock is treated in a heater at a temperature of 80 to 150°C to obtain the first fraction and the second fraction, the second fraction from the heater is treated in the first evaporator at a temperature of 180 to 250°C to obtain the third fraction and the fourth fraction, the fourth fraction is treated in the second evaporator at a temperature of 200 to 350°C to obtain the fifth fraction and the sixth fraction, the sixth fraction is treated in the third evaporator at a temperature of 250 to 400°C to obtain the seventh fraction and the eighth fraction, and the fifth fraction and the seventh fraction are used as the purified biological feedstock. Then, the purified biological feedstock is supplied into a reactor system which comprises a catalytically active phase of the protective layer and a catalytically active phase of the main reaction, and wherein the purified biological feedstock in at least one layer of the said phase catalyst is brought into contact with a combination of hydrodeoxygenation catalysts (GDO) and hydrodewaxing (GFC), the purified biological feedstock catalytic treatment is carried out with hydrogen in a reactor system to implement hydrodeoxygenation, isomerisation and cracking of feedstock components to obtain a hydrotreatment product, extraction of at least one hydrocarbon fraction of the hydrotreatment product as a biofuel or biofuel components.

EFFECT: method provides biofuel with acceptable flammability and acceptable low-temperature fluidity properties.

31 cl, 6 dwg, 11 tbl, 3 ex