Issue 3, 2012

An evaluation of desulfurization technologies for sulfur removal from liquid fuels

Abstract

Sulfur compounds represent one of the most common impurities present in the crude oil. Sulfur in liquid fuel oil leads directly to the emission of SO2 and sulfate particulate matter (SPM) that endangers public health and community property; and reduces the life of the engine due to corrosion. Furthermore, the sulfur compounds in the exhaust gases of diesel engines can significantly impair the emission control technology designed to meet NOx and SPM emission standards. The research efforts for developing conventional hydrodesulfurization and alternative desulfurization methods such as selective adsorption, biodesulfurization, oxidation/extraction (oxidative desulfurization), etc. for removing these refractory sulfur compounds from petroleum products are on the rise. Research laboratories and refineries are spending huge amounts of money in finding a viable and feasible solution to reduce sulfur to a concentration of less than 10 mg l−1. This paper reviews the current status in detail of various desulphurization techniques being studied worldwide. It presents an overview of novel emerging technologies for ultra-deep desulfurization so as to produce ultra-low-sulfur fuels.

Graphical abstract: An evaluation of desulfurization technologies for sulfur removal from liquid fuels

Article information

Article type
Review Article
Submitted
14 Jun 2011
Accepted
18 Oct 2011
First published
05 Dec 2011

RSC Adv., 2012,2, 759-783

An evaluation of desulfurization technologies for sulfur removal from liquid fuels

V. Chandra Srivastava, RSC Adv., 2012, 2, 759 DOI: 10.1039/C1RA00309G

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