FIELD: oil.
SUBSTANCE: invention relates to a method for processing a heavy oil feedstock by heat treating a feedstock in the presence of a hydrogen-containing gas using catalysts, including its separation into fractions to obtain light hydrocarbon fractions. In this case, the heavy oil feedstock is subjected to a dispersion before the thermal heating and fractional separation step and activation by an aqueous solution of a proton donor additive, dihydric acids or dihydric alcohols in an amount of 3.0-5.0% by weight, and hydrogen-containing gas in an amount of 3.0-5.0% by volume, taken from the feedstock, the resulting gas-liquid mixture is first heated in an oven, and then fed to a reactor in which the resulting vapor-gas-hydrocarbon-containing fraction is separated from the heavy oil-containing fraction, which accumulates in the reactor cube, steam-gas hydrocarbon-containing fraction, rising over the entire height of the reactor at a rate of 1.5-2.5 h-1, passes through three layers of heterogeneous metal-complex hydrotreating catalysts, hydrocracking, reforming, the process both in the furnace, and in the reactor are conducted at a temperature of 420-430°C and a pressure of 0.05-0.1 MPa.
EFFECT: proposed method allows to achieve the maximum conversion and yield of light target products of not less than 98% by weight.
1 cl, 1 tbl, 14 ex
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Authors
Dates
2018-05-28—Published
2016-10-25—Filed