Odor of Fuel Oils.

rain.on.moon · science forum beginner Joined: 30 May 2005 Posts: 34

Dear All,
I want to know the source of smell in fuel oils like kerosene, diesle
etc. If anyone has any suggestions and literature reference, please
inform me. Moreover can anyone suggest how to de odorise such fuels?
Regards,
Atta.

Herman Family · science forum Guru Wannabe Joined: 14 Jun 2005 Posts: 173

Quite possibly it would be the lighter hydrocarbons in the oil itself,
combined with a few sulfur compounds. I suppose you could deodorize them by
removing these lighter compounds, though that might have some deleterious
consequences upon the function of the oil. Asphalt, once cool, does not
have much of an odor.

Michael
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A Espinoza · science forum beginner Joined: 14 Sep 2005 Posts: 19

rain.on.moon wrote:

Milton Beychok · science forum beginner Joined: 10 May 2005 Posts: 14

Atta:

I thought we had settled this question a few days ago when you posted it on
the discussion forum available at www.cheresources.com, but perhaps you
have forgotten that. So I will repeat the answers I gave you in that forum:

The odor is probably caused by sulfur compounds in the kerosene and diesel
oil. Give us more information. Are you talking about kerosene and diesel
odors in a petroleum refinery? If so, then hydrotreating could be used to
remove the sulfur compounds from the diesel. And perhaps processing the
kerosene in a Merox unit might be all that the kerosene needs.

If you did a Google search on "hydrotreating" and "Merox", I am sure you
will find a great deal of information. You might also contact Universal Oil
Products (UOP) at Des Plaines, Illinois, USA who license, design and
construct such process plants. Their web site is at www.uop.com <== click
here

Milton Beychok
(Visit me at www.air-dispersion.com)

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John · science forum beginner Joined: 21 Jul 2005 Posts: 9

Since UOP was mentioned . . . .

MIDLAND, Mich., Oct. 3 /PRNewswire-FirstCall/ -- The Dow Chemical Company
(Dow) announced today that its wholly-owned subsidiary, Union Carbide
Corporation, has agreed to the sale of its indirect 50 percent interest in
UOP LLC to Honeywell. Honeywell currently owns the remaining 50 percent
interest in UOP. The sale price is $825 million plus or minus half of the
net cash in the venture at closing.

--
John
'69 Mach 1 390 Toploader Acapulco Blue
ThunderSnake #59

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rain.on.moon · science forum beginner Joined: 30 May 2005 Posts: 34

Are deodorization, desulfurization and MerOX the same processes ?
Thanx.

Milton Beychok · science forum beginner Joined: 10 May 2005 Posts: 14

Rain.on.moon:

Merox is a proprietory process licensed by UOP. It is a fairly simple
process that uses caustic (NaOH) and a catalyst to remove mercaptans from
light fuel oils such as kerosene and jet fuel. Since mercaptans have a very
bad odor, yes it deodorizes.

Also, since mercaptans are sulfur-containing compounds, Merox desulfurizes
to some extent. However, desulfurization in a petroleum refinery usually
refers to much more complex catalytic processes that use hydrogen to convert
all the sulfur compounds in naphthas and heavier fuel oils to hydrogen
sulfide which is then removed by distillation. These so-called
"hydrodesulfurizers" reduce the total sulfur content down to ppm levels.

Milton Beychok
(Visit me at www.air-dispersion.com)

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