| 摘要 |
The present invention relates to a process of the refining industry of petroleum: hydroconversion-distillation of heavy and/or extra-heavy crude oils, which comprises four stages:. 1) desalting and separation of the feedstock; 2) catalytic hydrotreating of light fraction (optional); 3) catalytic hydroconversion of heavy fraction, and 4) distillation of hydrotreated products. In this regard, it is important to point out that, by means of the process of the present invention products that can be processed in conventional refining schemes, designed to operate with light and intermediate crude oils are obtained.. Among the main technical contributions of the process of the present invention, compared with conventional refining processes are the following: increases the yield of distillate fractions and decreases the concentration of pollutants such as: sulfur, nitrogen, metals, etc., favoring the downstream plants operating at less severe conditions with the consequent increase in the lif etime of the catalysts and the reduced operating costs by reducing the consumption of utilities. Allows existing and conventional refineries to process larger amounts of heavy and extra-heavy crude oils. The light and heavy fractions obtained can be fed to the atmospheric distillation column in existing refineries, because their properties are similar to those of light and intermediates crude oils which are usually processed. |
