HYDROLYSIS AND HYDROGENATION CRUDE IN SITU WITH HEAVY NAPHTHA

Abstract

In this study we explored the viability of achieving heavy crude oil desulphurization through using the in situ hydrogen which is into the light fractions and is delivered during the naphta pyrolysis or obtained by molecular recombination. The results of ASTM curves show different amount of lightdistilled product by comparison between the oil treated by total reflux distillation and the nontreated crude oil, this phenomena is related to the light-molecules re-mixing into higher molecular weight molecules. The chromatographic analysis confirms that the light-fraction quantity decreases while the higher-weight fraction increases. There exists clear evidence that during the light-naphta recirculation both crude oil composition change and desulphurization occurs (mainly through H2S way). The results obtained in this exploring-study suggest the convenience to expand the project to pilot-plant level, looking to implement it in Refinery.