Preparation of phosphate promoted Na2WO4/Al2O3 catalyst and its application for oxidative desulfurization

Oxidative Desulfurization of Gasoline by Ionic Liquids Coupled with Extraction by Organic Solvents

“…In 1998, the European Union instituted legislations to monitor the S-limits in fuel oils by setting up mandatory S-content limit to be less than 10 ppm or negligible level. [1][2][3] In March 2014, the United States Environmental Protection Agency proposed new standards to further reduce the S-content from the current 30 to 10 ppm. In recent years, Japan has also made significant efforts to reduce the S-content from 500 to 50 ppm.…”

Preparation, characterization and catalytic performance of HPW-TUD-1 catalyst on oxidative desulfurization

“…Oxidative desulfurization (ODS) is one of the alternative methods for ultra-deep desulfurization comparing with traditional hydro-desulfurization, because it can be carried out with H 2 O 2 as oxidizing reagent at room temperature and atmospheric pressure [1]. In the ODS process, the sulfur compounds such as benzothiophenes (BT) and dibenzothiophene (DBT) are oxidized to their corresponding sulfones, which can be easily separated from the diesel using an extraction, and thus ultra-deep desulfurization of fuel can be achieved.…”

Conventional and Upcoming Sulfur‐Cleaning Technologies for Petroleum Fuel: A Review

“…In a similar study on H 2 O 2 , it was found that the oxidation efficiency can be further improved by adding formic acid in the presence of a metal oxide loaded on a high surface area support to remove thiophene derivatives from model gasoline . The oxidizing systems H 2 O 2 /CH 3 CO 2 H/Na 2 WO 4 , Na 2 WO 4 /Al 2 O 3 , and acetic acid/K 2 FeO 4 exhibit excellent oxidative desulfurization efficiency to remove the hard‐target 4,6‐DMDBT from diesel in a short time . To assess the overall performance of OD for removing OSCs and its suitability for commercial applications, some important and systematic studies are summarized in Table .…”