1. Two crude oils A (Naphthenes: 20%, Aromatics: 10%) and B (Paraffins: 14% ,
Aromatics: 40%) are blended in A/B = 2/5 to make C. What is the paraffins
content of C? 20 pts
1) A refinery has access to two different crude oil stocks A and B with the
a) What type of crude oils are A and B according to the ternary
A coil visbreaker operates at 500C for 1 min. How long will it take to achieve the
same thermal severity at 450C in a soaker visbreaking process? An apparent
Arrhenius activation energy for thermal cracking is given as 50 kcal/mol. Show
1. API of blend = 29.4
I know the API cannot be blended linearly. So I found the specific gravity of 40API to be .825
and 20API to be .934, then averaged them together for a specific gravity of .879. Then used
that to find the API of the blend.
Using the problem definition given in Figure 5.3 below, calculate n-C4 flow rate in
the distillate product, if the debutanizer column has 18 (actual) plates.
The concentration of i- C5 should be <1 mole% of total C4s and lig
Exercise 6 - Material Balance for FCC Regenerator
Burning the coke deposited on the catalyst particles generates all the heat necessary for catalytic cracking.
Therefore, the coke burning rate is a critical parameter to control the rate of cracking. The c
Lesson 6: Thermal Conversion Processes
Thermal cracking is the first commercial conversion process developed in the early 1900s principally to
produce more motor gasoline from crude oils and produce high-octane gasoline for aircraft use, initiati
Selected properties of crude oil provide information on its quality and the conditions for the optimum
operation of a petroleum refinery for processing the crude oil to produce the desired fuels. Readily
measurable physical properties of crude oi