Abstract
1. A mixture of methyl- and ethyl-carbamates is an effective solvent for the extraction of the bicyclic, aromatic hydrocarbons from the kerosene-gas oil fractions of petroleum products by the method of liquid extraction, 2. The conditions were determined for the liquid extraction of the light gas oil from catalytic cracking with alkylcarbamate to obtain an aromatized extract which contains 95% aromatic hydrocarbons including 54,5% bicyclic hydrocarbons. The extract yield is 27.5% calculated on the gas oil. A 70% dearomatized raffinate is obtained which is a high-quality component for diesel fuel. 3. In the extraction separation of the light gas oil from catalytic cracking of a low-sulfur vacuum-distillate with the alkylcarbamate and hydrogenation of the extract the following are obtained (calculated on the gas oil): 10% naphthalene, 7% high-octane component of gasoline, and 70% of the diesel fuel component.
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