NOUN Past Questions: CHM311 - Petroleum Chemistry

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Adele
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NOUN Past Questions: CHM311 - Petroleum Chemistry

Postby Adele » Sat Jul 07, 2018 4:11 am

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OCTOBER/NOVEMBER 2014 EXAMINATION
COURSE CODE: CHM 311 CREDIT
UNIT: 2
COURSE TITLE: PETROLEUM CHEMISTRY TIME: 2
HRS
INSTRUCTION: Answer any 4 questions

1. Write short notes on each of the following:
(i) Oil in Place (10 mks) (ii) Formation Volume Factor (7 ½ mks)

2. (a) Mention the six (6) main categories of unconventional natural gas. (6mks)
(b) What reasons accounts for a gas reserve being economically stranded? (4 mks)
(c) In just few lines, identify the various ways of Natural gas formation. (6mks)
(d) State one difference between conventional & unconventional natural gas.
(1½ mk)

1. (a) How would you explain the term “Cracking”? (6 mks)
1. (b) List three (3) methods by which acid gases can be reduced or removed
from
Natural gas. (3 mks)
(c) What is the essence of removing moisture from Natural gas? (2 ½
mks)
(d) Natural Gas Liquids are normally fractionated into three (3) streams.
List and mention the use of each stream. (6 mks)

1. (a) How would you explain the following:
(i) Petroleum (5 ½ mks) (ii) The Carbon Cycle (10
mks) (b) What is Biomass? (2 mks)

1. Write extensively on each of the following in relation to determining the
properties of crude oil. (i)Salt content (5 ½ mks) (ii) Sulphur
content (6mks)
(iii) Pour point (6 mks)

1. (a) What do the following terms mean?
(i) Kerogen (ii) Allochthonous (iii) Autochthonous (1 mk
each)
(b) What is Metagenesis? Discuss. (5 ½ mks)
(c) What are the advantages of the use of liquid methane as a jet engine
fuel? (5mks)
(d) How are oil wells characterized on the basis of their purpose? (4 mks)



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Adele
Posts: 522
Joined: Mon Nov 06, 2017 3:24 pm
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Re: NOUN Past Questions: CHM311 - Petroleum Chemistry

Postby Adele » Sat Jul 07, 2018 4:13 am

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MAY/JUNE 2012 EXAMINATION
CHM 311: Petroleum Chemistry (2 Credit Units) Time: 2 Hours
INSTRUCTION: Answer any four Questions

1. (a) List and discuss briefly the three main stages of
evolution of organic matter (11 ½
.marks)
(b)Physicochemical transformation of organic matter is
controlled by certain factors, list them.(3 marks)
(c)Why must moisture be removed from natural gas (3marks)

2. 2. (a) What are the problems associated with the
storage and transportation of the various gas products?
(7marks)
(b) What are the attributes of a good reservoir? (6 marks)
NOUNPORTAL.COM.NG
.(c) What are the two areas of specialisation of reservoir
engineers?(4 ½ marks)

3. (a) List the various classes of crude oil. Discuss four of
these classes in details.(11marks) (b) Explain the following
terms: (i) Stranded gas (ii) Physically stranded gas (4marks) (iii)
Economically stranded gas.
(c) What is the difference between conventional and
unconventional gas?(2 ½ marks)

4. (a) Define or explain the following terms: (i) Visbreaking
(ii) Steam cracking (iii) thermal reforming(6 ½ marks)
(b) List the various methods of altering molecular structure in
crude petroleum (3marks (c) Write short notes on each of the
following terms: (i)
Oil window (ii) Source rock (iii) Paleozoic era ( 8marks)

5. 5. (a) Discuss the various modes of transporting
petroleum products from refinery to the consumers.(5 marks)
(b) List the four major reservoirs of carbon. (4 marks)
(c) Discuss briefly the potential market for Nigerian gas (8½
marks)

6. 6. (a) What are the uses of Carbon disulphide and
hydrogen cyanide? (4marks) (b) List the uses of ammonia and
methano (4marks)
(c) Discuss briefly the various uses of natural gas. (9 ½ marks)



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