PROCESS FOR PRODUCING HYDROCARBON OIL

摘要

The method for manufacturing a hydrocarbon oil of the present invention comprises a first step wherein a plurality of reaction zones filled with a specific catalyst is disposed in series and a feedstock oil containing an oxygen-containing hydrocarbon compound derived from an animal or vegetable oil is supplied and hydrotreated under the conditions of a hydrogen pressure of 1 MPa or more and 10 MPa or less in each of the reaction zones; and a second step wherein hydrogen, hydrogen sulfide, carbon dioxide and water are removed from a product to be treated obtained in the first step to obtain a hydrocarbon oil. Among the plurality of reaction zones, the inlet temperature of the reaction zone disposed on the most upstream side is 150°C or more and 250°C or less, the inlet temperature of the second most upstream reaction zone or below is equal to or higher than the condensation temperature of water, and the outlet temperature of the reaction zone disposed on the most downstream side is 260°C or more and 360°C or less. The feedstock oil comprises a recycled oil containing a specific amount of a part of the hydrocarbon oil obtained in the second step and a specific amount of a sulfur-containing hydrocarbon compound.