Term
| why is alkylation favored in US refineries? |
|
Definition
environmental legislation limits the amount of aromatics in gasoline
(so we want to increase octane # with iso-alkanes instead) |
|
|
Term
| Polymerization is not called alkylation because |
|
Definition
| the reactants used for polymerization do not contain alkanes |
|
|
Term
| hydrotreatment is what kind of process? |
|
Definition
|
|
Term
| Usually the first process in a hydrotreatment sequence is |
|
Definition
|
|
Term
| Removal of nitrogen (HDN) may be used as a pretreatment process in a refinery in order to protect |
|
Definition
|
|
Term
| True octane numbers of a reformate and straight run gasoline are 90 and 60, respectively. Is calculation of the octane number of a blend made from these possible with this info? |
|
Definition
|
|
Term
T/F?
Claus process cannot remove CS2 or COS |
|
Definition
|
|
Term
T/F?
Claus and SCOT processes work in sequence to convert H2S to elemental S |
|
Definition
|
|
Term
T/F?
Hydrogen is recovered from H2S through Claus and SCOT processes |
|
Definition
|
|
Term
T/F?
Claus process produces SO2 as an intermediate product |
|
Definition
|
|
Term
T/F?
SCOT process uses H2 to convert CS2 and COS to H2S |
|
Definition
|
|
Term
Which measure below does NOT help with reducing the amount of waste water for treatment in refineries?
A. Controlling surfactants in water use.
B. Using process water for desalting.
C. Segregation of waste water streams.
D. Combination of all waste water streams.
E. Water conservation in refinery units. |
|
Definition
| combination of all waste water streams |
|
|
Term
| The majority of sulfur compounds found in the gasoline pool comes from which process? |
|
Definition
|
|
Term
The developments in the end of the century refinery (1980 – 2000) focused on upgrading
A. the heavy ends of crude oil.
B. the light ends of crude oil.
C. the oxygenated crude oil.
D. the sweet crudes.
E. the salty crudes. |
|
Definition
| the heavy ends of crude oil |
|
|
