Coupled Oxidation-Extraction Desulfurization: A Novel Evaluation for Diesel Fuel

Abstract

In our previous experimental study, we have used a desulfurization method, i.e., coupled oxidation-extraction desulfurization. To develop a new insight into industrial-scale desulfurization process by this method, the process simulation study is of great importance. In this work, the industrial-scale of the coupled desulfurization processing of ULSD, wherein [C 1 pyr]H 2 PO 4 is employed in the oxidative desulfurization process and DMF is employed in the extractive desulfurization process, has been examined through the Aspen Plus simulation. Sensitivity of various operating conditions, i.e., IL-to-oil ratio, DMF-to-oil ratio, operating temperature and pressure has been analyzed. Subsequently, the economical comparison of the proposed process and HDS is compared synthetically. It is observed that coupled desulfurization method can effectively remove the S-compounds from the diesel fuel to meet the requirement of stringent legislation of less than 10 ppm. The main objectives of this work are; (i) to propose and design an industrial-scale process of the coupled oxidation-extraction desulfurization of diesel, (ii) to obtain the optimal operating conditions, thus enabling the simulation and optimization of this desulfurization process, and (iii) to verify the experimental results and evaluate the feasibility to scale-up this technology. To the best of our knowledge, it is the first time to design an industrial-scale process for the coupled oxidation-extraction desulfurization of diesel fuel.

HPW/PAM Catalyst for Oxidative Desulfurization-Synthesis, Characterization and Mechanism Study

“…However, the HDS process is limited to the extreme process conditions. In order to solve these problems, non-HDS methods were put forward, such as oxidative desulfurization (ODS) [3,4], extractive desulfurization (EDS) [5][6][7] and adsorption desulfurization (ADS) [8][9][10].…”

How to select ionic liquids as extracting agents systematically: a special case study for extractive denitrification processes

“…Ionic liquids (ILs) [11][12][13][14][15][16][17][18][19][20] with desirable advantages (such as high steam pressure and nonvolatility, strong solubility of inorganic/organic compounds, easy recycling and so on) have attracted interest in extractive denitrication (EDN). Studies on EDN of conventional diesel or gasoline by ILs as extracting agent have been intensively studied, as shown in Table 1.…”

3D-printing of integrated spheres as a superior support of phosphotungstic acid for deep oxidative desulfurization of fuel

“…desulfurization (ODS) [22][23][24][25][26] , have been developed. Among all those newly-emerged approaches, ODS has been regarded as a promising one [27] , because of the high activity to aromatic sulfur compounds under mild conditions. To achieve superior ODS efficiency, an inevitable topic is seeking for a highly-active catalyst [28] .…”