Product Blending

Question 1

What can napthas be blended with

Answer 1

gasoline or jet fuel depending on product demand

Question 2

Blending components to meet all critical specifications most economically is _____ procedure.

Most refineries use ___ blending for blending gasolines and other high-volume products.

Computer selects the blending components to produce the required volume of the specified product at the____

Answer 2

trial-and-error

computer-controlled in-line

lowest cost

Question 3

Allowable blending stocks:

Answer 3

Those with boiling ranges within the product specifications.

Question 4

Control criteria:

Answer 4

Reid vapor pressure (RVP) and octane requirements

Question 5

What is RVP (2)

Answer 5

It is the vapor pressure of the gasoline at 100 °F in absolute units.

It indicates the ease of starting and vapor-lock tendency as well as explosion and evaporation hazards

Question 6

The desired RVP of a gasoline is obtained by blending _____ with _____

Answer 6

n-butane w/ C5-380F naphtha

Question 7

Voluntary control of emissions was done on the basis of ____ (3)

Answer 7

safety, fuel economy, and the economic advantages of good maintenance

Question 8

The potentially harmful substances which must be carefully controlled
include:

Answer 8

• discharge of liquid hydrocarbons into bodies of water
• relief of hydrocarbon vapors, oxides of sulfur (SOX) and oxides of nitrogen (NOX) into the atmosphere.