This seminar discusses the removal and recovery of sulfur from petroleum products. It covers various methods of removing sulfur compounds, including catalytic desulfurization and wet sulfuric acid processes. Catalytic desulfurization uses catalysts to add hydrogen and reduce unwanted sulfur compounds at high pressures and temperatures. The seminar also discusses recovering elemental sulfur through dry and wet processes, as well as thermal cracking. Recovering sulfur is important for improving the performance, reducing the corrosiveness, and enhancing the odor and storage stability of petroleum products.

1. SEMINAR
ON
REMOVAL & RECOVERY OF
SULPHUR REPRESENTED BY
Kedar R Bhagyawant
B.E CHEMICAL
ROLL NO-BECH52
PAD.DR.D.Y.PATIL INSTITUTE OF ENGINEERING MANGMENT &
RESEARCH,AKURDI-044`
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2. 1. Removal of S
2. Methods of Removal of S
3. Catalytic Desulfurization
4. Finishing Process
5. Recovery of S
6. Application's
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3. S is in the form of organ S compounds.
Hydrogen sulfur is inorganic S compound.
Is harmful because its corrosive nature.
organ S compounds are acidic and non acidic.
Acidic S compounds are thiols (mercaptans).
Thiophene, sulfides and disulfides are non-acidic.
Extensive research has been carried out to identify some sulfur
compounds in a narrow light petroleum fraction.
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4. I.Catalytic Desulfurization.
II.Chemical Desulphurization.
III.Physical Adsorption Of Sulphur Oxide
IIII.Wet Sulfuric acid process.
IV. Spray dry scrubbing using similar sorbent
slurries.
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5. HDS uses types of catalysts to add H in order to reduce
unwanted S compounds.
Requires expensive, high-pressure, high-temperature
(400 – 550°C).
The catalyst consists of an alumina base impregnated
with cobalt and molybdenum.
As the oilsupplies get more sour, higher pressures and
alternative catalysts are required for the desulfurization.
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7. For Performance Corrosivity Oudor Suitability of storage of petro product
Because of undesirable constituents
Like S, H2S, mercaptants, N, Oudoring, gum forming and color components.
1. Removal
2. Recovery
3. Sweetening
4. Solvent extraction
5. Hydro treating
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8. 1. Dry process
H2S= S and water
a. Claus process
b. Selective Oxidation
2. Wet process
Wet Oxidation on aqueous solution
3.Thermal cracking
H2S=S and H
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9. 1. Reduction of S in feed of catalytic reformer
2. And Naptha, Kerosene, Gas oil, Fuel oil
3. Improvement of color, odour, Oxidation
stability of lube oil
4. To improve Cetane nu & Smoke point
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11. REFERENCES
http://en.wikipedia.org/wiki/hydrodesulfion342.html
http://www.enerji.gov.tr/index.php?dil=en&sf=webpages&b=
komur_EN&bn=511&hn=&nm=40717&id=40729
http://www.eolss.net/sample-chapters/c08/e3-04-02-04.pdf
http://indiadaily.ir/1383/2116/html/005991
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