Abstract: A method for obtaining diesel fuel from vegetable or animal oils through the addition of hydrogen in the presence of catalysts under suitable temperature and pressure conditions is described. The method is different from other similar methods in that it involves the use of space velocities of between 5.1 h-1 and 9 h-1, thereby enabling a reduction in the size of the reactor and in hydrogen consumption, as well as lowering construction and operating costs. The invention also relates to the products obtained using said method, which have demonstrated that in additions, even below 10%, they improve the performance of diesel engines, thereby lowering fuel consumption.

Abstract: The present application relates to a method for obtaining solid paraffins from vegetable oils and/or animal fats, which is characterized in that the organic oil is preheated to a temperature of between 50 and 100° C. in order to render the oil fluid and for it to be possible to transfer the oil to steps downstream in the method. The oil and the hydrogen are mixed in the pipeline and passed via a furnace in order to be heated to the desired reaction temperature. Inside the reactor, the hydrogen reacts with the oil at the active sites of the catalyst at pressures of between 2 and 11 MPa and temperatures of between 150° C. and 330° C., with an hourly space velocity of between 0.2 and 6 h?1. The catalyst used is of fixed-bed type, composed of molybdenum and nickel oxides supported on alumina that have previously been sulphurized in order to be activated. The hydrotreated product exits via the lower part of the reactor and passes to a level separator.

Abstract: The invention relates to a method for obtaining diesel fuel from vegetable or animal oils through the addition of hydrogen in the presence of catalysts under suitable temperature and pressure conditions. The method is different from other similar methods in that it involves the use of space velocities of between 5.1 h-1 and 9 h-1, thereby enabling a reduction in the size of the reactor and in hydrogen consumption, as well as lowering construction and operating costs. The invention also relates to the products obtained using said method, which have demonstrated that in additions, even below 10%, they improve the performance of diesel engines, thereby lowering fuel consumption.