CATALYTIC PROCESSING OF A MIXTURE OF DISTILLATE FRACTIONS OF COAL TAR AND CRUDE COKING BENZENE
Keywords:
coke-chemical tar, semi-coking, tetralin, tar fractions with boiling points up to 180, 180-230 and 230-280°С, naphthalene, benzeneAbstract
It was shown that the yield of benzene increases by 1.4 and yield of naphthalene increases by 1.9%, respectively, due to hydrodealkylation and hydrocracking of aromatic hydrocarbons as a result of high-temperature hydrogenation of a mixture of crude benzene and naphthalene fraction after recycle of residue in the composition of products with residue recycle. It was established that the yield of a product of hydrogenation increases up to 98.2% with hydrogenation of hydrotreated feedstock with the addition of residue after naphthalene extraction compared with 97.0% with hydrogenation of hydrotreated feedstock.
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