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Flashcards in Lubricant Manufacturing Deck (16)
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0

What are the major compositional classifications of crude oil?

Naphthenic
Paraffinic
Asphaltic

1

How many gallons are in a crude oil barrel?

42

2

What is the primary product produced from crude oil?

Distillate fuel products

3

How is crude oil converted into lubricating oil?

A series of refining steps including distillation, vacuum distillation, solvent extraction, hydrotreating, dewaxing.

4

How can the yield of lubricating oil from crude oil be increased?

Through cracking

5

What does cracking mean?

A catalytic process in which high molecular weight molecules are cracked into smaller molecules.

6

Name three cracking processes.

Hydrocracking
Thermal cracking
Steam cracking

7

What is distillation?

Distillation is a heat dependent process used to purify or separate a fraction of a complex mixture through their differences in boiling point.

8

Name four specifications commonly used for base stock?

High saturates content which gives it good oxidation resistance
High viscosity index
Volatility
Sulfur content

9

What are two characteristics of paraffinic stock that makes it a preferred base stock for most lubricant applications?

High saturates content which gives it good oxidation resistance
High viscosity index
Good lubricity

10

What are synthetic base oils?

Man made base stocks made up of chemical elements selected for the properties imparted to the finished synthetic base stock.

11

Lubricants are primarily composed of what?

Hydrocarbon (or synthetic) base stock
Additives

12

List 10 additives.

Anti-wear EP Anti-foam
Rust inhibitor Oxidation inhibitor Pour depressant
Viscosity index improver Friction modifier Seal swell
Dye Detergent Dispersant
Tackifier Solids Emulsifier
Demulsifier Fatty additives

13

What additive reduces thinning of an oil at high temperatures?

Viscosity index improver

14

If a lubricating oil has a VI of 95, it is probably made with which type of base stock?

Paraffinic

15

Bunker C marine oil is similar to _______ fuel oil.

Heavy