Atmospheric Residues From Saudi Arabia Light Crude Oil Essay

1489 Words Oct 13th, 2016 6 Pages
Atmospheric residues from Saudi Arabia light crude oil were subjected to the hydrotreating process in a continuous fixed-bed reactor with hydrodesulfurization and hydrodenitrogenation catalysts. Detailed molecular composition of polar heteroatom species in the feedstock and products was determined by electrospray ionization (ESI) Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) combined with other analytical methods. The ESI FT-ICR MS analysis indicated that the N1 class species have the highest relative abundance. In the hydrotreating process, small neutral N1 class species with high aromaticity and short side chains showed the highest relative abundance and were defined as easily removable compounds. High aromaticity and small molecule basic N1 compounds exhibited higher catalytic activity towards hydrogenation. The N1S1 class species were converted to the N1 class species, or even hydrocarbons, by the preferential removal of the sulfur atoms. Most of the N1O1 class species were difficult to remove because of their stable chemical structure. 1. Introduction
Petroleum is a non-renewable and valuable resource. The key to improve the utilization of petroleum resource is the complete transformation of the residue. Residue hydrogenation process is considered as the most effective method to remove the sulfur residue owing to its flexible process solutions and strong applicability of the raw material.[1] Even though the fixed-bed residue technology is…

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