METHOD FOR THERMOCHEMICAL PROCESSING OF OIL TAR MIXED WITH NATURAL CRACKING ACTIVATORS Russian patent published in 2008 - IPC C10G9/00 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to method for thermochemical processing of oil tar mixed with natural cracking activators by means of their thermal cracking at the temperature of up to 430°C within the period providing full topping of clean distillates e.g. in devices with mechanical mixing. Method includes preheating of raw materials up to cracking temperature, cracking of raw materials in a thermal manner in the form of oil tar mixed with elemental sulphur, raw materials in the form of oil tar mixed with bituminous coals, as well as in the form of triple compositions containing oil tar, active calcium oxide or active magnesium oxide, and either run-of-mine oil shale, preferably of carbon or aluminosilicate type, or rich shale of any genetic types. The process is carried out at the atmospheric pressure and temperature of 390-430°C, also using Fischer's retort as apparatus or device with solid heat carrier. Advantage of proposed method is that it has an alternative as to instrumentation: reactors with mechanical mixing, Fischer's retorts and devices with solid heat carrier.

EFFECT: when using the aforesaid additives, additional yield of clean distillate is reached in order to obtain gasoline fraction, kerosene fraction and diesel fraction.

6 cl, 1 ex, 1 tbl