AN IMPROVED COMBINED PROCESS OF HYDROTREATING AND CATALYTIC CRACKING OF HYDROCARBON OILS

摘要

the present invention, under hydrogenation conditions in the presence of hydrogen, the residual oil, a recycle oil, and optionally fractionated oils for catalytic decomposition comprising the step of contacting with the catalyst, the hydrocarbon significant hydrogenation and It relates to the catalytic decomposition of an improved coupling method. The reaction product obtained is separated is a gas, the hydrogenated naphtha, hydrogenated diesel oil and hydrogenated tail oil. Under the catalytic decomposition condition, tail oil and a hydrogen selective catalytic decomposition conventional material for additives is in contact with the catalyst for the catalytic decomposition. The reaction product is separated is obtained by decomposing the recycled five days of diesel and gasoline to catalytic decomposition, catalytic decomposition of dry gas, liquefied gas and catalytic. The method of the present invention, hydrogenated tail oil and / or a conventional catalytic decomposition material and before the catalyst is contacted for catalytic decomposition, hydrogenated tail oil and / or a conventional catalytic decomposition of a raw material of rigid at least two fractions for It characterized in that it contains a fraction and the heavy fraction or conventional catalytic decomposition of heavy oil and conventional catalytic materials for rigid separation step for decomposing the raw material for euro. The method is particularly suitable for producing more gasoline and diesel oil by converting a hydrocarbon oil. ;