ppe 4

Question 1

Demex process is also known as?

Answer 1

Deasphalted Oil Maximum Extraction

Question 2

Which process is Deep Solvent Deasphalting (DSDA) an application of?

Answer 2

Low-Energy Deasphalting (LEDA)

Question 3

What solvent is extensively used for deasphalting and produces a DAO and PDA/PD tar?

Answer 3

Propane

Question 4

It is a separation process that takes an additional step in the minimization of residual by-product fuel.

Answer 4

Deasphalting process

Question 5

What is the main feedstock used in the MDS process?

Answer 5

Crude Oil

Question 6

Which solvents can be used in the ROSE process based on the feedstock and desired compositions?

Answer 6

Propane, butane, and pentane

Question 7

This process is used to deasphalt and extract lubricating oil feedstocks utilizing two solvents (primary and secondary solvents)?

Answer 7

Duo-Sol Process

Question 8

This is a microcrystalline type of wax that when produced is a grease-like material that is known in refined form as petroleum jelly

Answer 8

Petrolatum

Question 9

What process enables the precipitation of the wax from the feedstock-solvent mixture?

Answer 9

Chilling