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Desulfurization

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desulfurization

[dē‚səl·fə·rə′zā·shən]
(chemical engineering)
The removal of sulfur, as from molten metals or petroleum oil.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Desulfurization

 

a combination of physicochemical processes that promote the removal of sulfur from molten metal (cast iron, steel). It consists in converting the sulfur dissolved in the metal to sulfides that are either insoluble or poorly soluble in the liquid metal bath (for example, MnS, MgS , CaS, and Na2S). Examples of desulfurizers are lime, sodium carbonate, and metallic magnesium.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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References in periodicals archive
MHPS will proactively offer Air Quality Control Systems (AQCSs) combining high-performance, high-efficiency desulfurization /denitrification systems and dust collectors, contributing to reductions in the global environmental load.
Effect of Mass Ratio between Zinc Ferrite and Activated Carbon on Desulfurization. As shown in Figure 2, the mass ratio of zinc ferrite to activated carbon is an important factor affecting the adsorption performance of Zn[Fe.sub.2][O.sub.4]/AC composites on S[O.sub.2] removal.
The effects of four independent variables of PMS dosage, [Bmim]Cl/Co[Cl.sub.2], temperature, and reaction time for desulfurization were investigated based on response surface methodology (RSM) and real experiment.
Then the effect of operating temperature and feed concentrations on desulfurization performance were investigated in detail.
Refine products from a crude oil requires desulfurization [6].
It was an appropriate article to feature as lime and limestone flue gas desulfurization processes are still the predominant technology being used today to control sulfur dioxide emissions from coal-fired power plants.
At present, there are several coal desulfurization methods such as [1]: physical desulfurization, chemical desulfurization and microbiological desulfurization.
In the past decade, enormous awareness has been paid to deep desulfurization of transportation fuels due to the stringent policy on sulfur content in fuel (<10 ppm).
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