A)- Air compressor and rich gas compressor used for catalytic cracking Unit and delayed coking unit.

B)-Hydrogen compressor used for Hydrogenation unit.

C)- Air compressor, natural gas compressor, synthetic gas compressor and ammonia refrigerating compressor used for synthetic Ammonia plant.

D)- CO2 compressor used for Urea plant.

E)- Cracking gas compressor, propylene gas compressor and ethylene gas compressor used for Ethylene unit.

F)- Centrifugal compressor of gas-steam combined power generation unit ,coal gas compressor and sintered gas blower of converter and blast furnace used for Metallurgical industry.

G)- Air compressor, oxygen compressor and nitrogen compressor used for Air separation.

H)- Instrument air compressor used for plant Air station.

I)- Air compressor used for pharmacy and Textile industry.