Chemical Engineering - Petroleum Refinery Engineering - Discussion

The Right answer is Furfurol.

The right answer is furfurol.

Propane is the right answer.

Propane is used in deasphalting of lube oil.

Propane is added in crude, it is very less soluble in asphalt and becomes soluble with lube oil. So the lube oil and propane mixture is separated from asphalt.

Then this mixture is heated up to the critical temperature of propane and that temperature the propane becomes insoluble in lube oil. This is the reason why propane is used in deasphalting of lube oil.

Propane is for Deasphalting.

Propane and MEK both are used in Dewaxing.

Propane is used for Deasphalting.

And MEK (methy ethyl ketone) used for Dewaxing.

According to me, the right answer is furfurol.

According to me, the right answer is furfurol.

Propane is used in Propane deasphalting unit. To remove asphalt and oil.

Propane is used in Propane deasphalting unit. To remove asphalt and oil.

Propane (or sometimes propane/butane mixtures) is extensively used for deasphalting and produces a deasphalted oil (DAO) and propane deasphalted asphalt (PDA or PD tar). Propane has unique solvent properties; at lower temperatures [38-60°C (100-140°F)], paraffins are very soluble in propane and at higher temperatures [about 93°C (199°F)] all hydrocarbons are almost insoluble in propane.