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Distillation Of Petroleum

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Q: Anyone here knows what gas is produced in large quantity in the fractional distillation of petroleum?

A: Actually
ethylene

Q: Is refining a raw resource (eg – atmospheric distillation of petroleum) a primary or secondary industry?
Someone asked generally about primary, secondary, and tertiary industries before, but I’m looking for this specifically.

A: There are three types of Industry in OpenTTD; Primary, Secondary and Tertiary. Primary industries, such as mines, provide goods without requiring anything. These resources are then transported by a transport company to a Secondary Industry. Sometimes, Secondary Industries will provide a resource that will either be transported to Towns (goods or food), or to a Tertiary industry.

Prospecting is only used for primary industries (i.e. raw materials)

Refining a raw resource which makes it primary.

Q: A question about fractional distillation of petroleum?
The gasoline fraction of the fractional distillation of petroleum is extremely important. Describe two processes that are used to increase the yield of this fracton

A: Look up “catalytic cracking” and “steam re-forming”. Wikipedia and Google are good starting points.

Q: Which products are obtained from the fractional distillation of petroleum?
1. esters and acids
2. alcohols and aldehydes
3. soaps and starches
4. kerosene and gasoline

A: kerosene and gasoline

Q: diagram of fractional distillation of petroleum?
fractional distillation of petroleum

A: http://www.elmhurst.edu/~chm/onlcourse/chm110/outlines/distill.html

Lots of pictures here:

http://images.google.com/images?hl=en&source=hp&q=petroleum%20fraction%20distillation&um=1&ie=UTF-8&sa=N&tab=wi

Wouldn’t it be nice if everyone learned how to use Google?

Q: which of these is not a product of fractional distillation of petroleum??????
a:gasoline
b:tar
c:parafin wax
d:asphalt

A: c:parafin wax

Q: Describe the separation of petroleum into fractions by fractional distillation?
Can you please help me with this, I just need to know it as soon as possible for education purposes. Thank you

A: (1) Crude oil is a mixture of many different hydrocarbon molecules.
(2)The various hydrocarbon molecules are separated by refining.
(3)At a refinery, crude oil is separated into different fractions (=groups of hydrocarbons that have different boiling points). These different boiling points are roughly related to the number of carbon atoms in the hydrocarbon.
(4)Separation of the hydrocarbons takes place in a fractional distillation column (fractionating tower).
(5)At the start of the refining process, crude oil is preheated to a temperature of 350 – 400 C and pumped in at the base of the tower.
(6)As it boils, the vapour passes up the tower and passes through a series of bubble caps and cools as it rises further up the column.
(7)The different fractions cool and condense at different temperatures and at different heights in the column.
(8)The fractions condensing at the different levels are collected on trays.
(9)Each fraction contains a number of different hydrocarbons.
(10)Fractions from the top of the tower are called light and those from the bottom are heavy.
(11)The individual single hydrocarbons can then be obtained by further distillation.

see fractional distillation column at http://www.energyinst.org.uk/education/coryton/images/column.gif

Q: Who is the biggest bunker oil trader in the world? How can I find data about this kind of oil?
Bunker oil is a special fuel for ships, it comes from petroleum distillation.

A: http://www.liquidminerals.com/fuels.htm

http://www.hess.com/EHS/msds/No6_9907_clr.pdf

http://www.top500.de/lexikon/bunker_fuel.htm

Q: why is steam is used for stripping in distillation or in a petroleum industry???
does it has smthing to do wd partial pressure of steam???

A: If you wish to reduce the temperature at which a fluid boils, you can do that by reducing the pressure at which the boiling occurs. In a distillation column you usually like to have the pressure high for the condensing of the overhead vapors.

By introducing steam into the column, the partial pressure of the fluid being boiled is reduced but the pressure for the over head is still higher.

One common reason for wanting a lower temperature at the bottom of the column is to prevent cracking of the fluid.

Q: Describe how distillation separates the components of a liquid mixture, such as petroleum?

A: Distillation separates a liquid mixture by boiling points. The part of the liquid that has lower boiling point will evaporate first, into another glass container, leaving the liquid with higher boiling point in the original distillation flask.

In the case of petroleum, I would rather avoid distillation because it is a pretty flammable substance and contains a lot of hydrocarbons in it. They use gas fractionation to separate and refine the components of petroleum.

Q: Describe two processes that are used to increase the yield of this fraction?
The gasoline fraction of the fractional distillation of petroleum is extremely important.

A: Additional gasoline type molecules can be made by cracking larger molecules or by alkylation reactions of alkenes.

Q: Which of the ff. terms is mismatched? (mixtures)?
filtration : salt water
dissolving: coconut oil
steam distillation : essential oils
fractional distillation : petroleum

I’m not sure whether it’s the first or the second statement,
a simple explanation would be good too.

Thanks!

A: dissolving: coconut oil appears to be a mismatch, as the other three are methods of separating out the mixture.

Q: Alkane C has a relative mass of 170 and occurs in the kerosene fraction obtained by the (SEE BELOW)?
Alkane C has a relative mass of 170 and occurs in the kerosene fraction obtained by the fractional distillation of petroleum. Deduce the molecular formula of alkane C???

A: I’m assuming “relative mass” is molecular weight.

The molecular formula for an alkane is given by C(n)H(2n + 2).

If carbon has an atomic weight of 12 and hydrogen 1,

12 g/mol n + 1 g/mol (2n + 2) = 170 g/mol or

12n + 2n + 2 = 170

14n + 2 = 170

14n = 168

n = 12

So the number of carbons is 12 and the number of hydrogens is 26. The molecular formula is thus

C12H26.

Q: The hydrogen sulfide in a 75-gram sample of petroleum…?
Any help would be appreciated, I have no idea how to do this…

The hydrogen sulfide in a 75.0 gram sample of crude petroleum was removed by distillation and collected in a solution of CdCl2. The precipitated CdSwas then filtered, washed, and ignited to CdSO4. Calculate the percentage of H2S in the sample if 0.116g of CdSO4 was recovered.

A: I will teach you the procedure to solve this problem. You yourself should solve this problem.
First, convert 0.116g of CdSO4 to number of moles of CdSO4.
Second, understand that the number of moles of CdSO4, contains the same number of moles of atomic S, which is originally from the same number of moles of atomic S in H2S. That is to say, the number of moles of CdSO4, is the same number of moles of original H2S in crude petroleum.
Third, convert this number of moles of H2S back to grams of H2S. The grams of H2S, divided by 75.0 gram, is the percentage of H2S in the sample.

Q: Match the carbon compound with the correct petroleum fraction, need a little help please..?
Match each of the following carbon compounds with the petroleum fraction from which it would be separated during the fractional distillation process.

Choices are gasiol, kerosene, gas, paraffin wax, straight-run gasoline, lubricants, asphalt

1. Benzene (C6H6)
2. Butane (C4H10)
3. Iso-octane (C8H18)
4. Natural gas
5. Roofing tar ( this one is asphalt, isn’t it?)

Thanks tons for the help.

A: 2 Butane & 4 Natural gas are from the GAS fraction.

1Benzene and 3 Iso-octane can be found in the gasoline fraction.

5 roofing tar, would be in the asphalt fraction.

There is a table of fractions here: http://chemed.chem.purdue.edu/genchem/topicreview/bp/1organic/coal.html#table1_4

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