METHOD OF OBTAINING SUBSTANCES OF THE DIESEL FRACTION, WHICH HAVE THE IMPROVED PROPERTIES OF FLOWABILITY HUMS COLD

摘要

1. A method (10) providing a substance diesel fraction (42), having improved flow properties in the cold, comprising the steps of: providing (12) a paraffinic feedstock (15) of the diesel fraction; obtaining (14) an intermediate flow (20) of a product containing a predetermined organosoedineny amount of oxygenate feedstock paraffin diesel fraction; ikontaktirovaniya (22) intermediate stream with a catalyst in the dewaxing process conditions under which oxygen organosoedineniya chemically interact with the dewaxing catalyst to convert a portion of n-paraffins in the intermediate product to isoparaffins, while reducing to a minimum cracking diesel fraktsii.2 substance. The method of claim 1, wherein the step of providing (12) a paraffinic feedstock (15) comprises supplying diesel fraction paraffinic feedstock diesel fraction comprising n-paraffins and oxygenates organosoedineniya, and wherein the step of obtaining (14) the flow (20) of the intermediate portion comprises removing organosoedineny oxygenate feedstock of paraffinic diesel fraction, while maintaining it in a predetermined amount of oxygen organosoedineniy.3. A method according to claim 2, wherein the predetermined amount of oxygen organosoedineny, continuing in a paraffinic feedstock (15) of the diesel fraction contains from 200 to 2000 ppm by weight kisloroda.4. A method according to claim 2, wherein the step of feeding a paraffinic feedstock (15) includes obtaining diesel fraction paraffinic feedstock diesel fraction of biovozobnovlyaemogo istochnika.5. A method according to claim 2, wherein the step of feeding a paraffinic feedstock (15) of the diesel fraction incl