clos - comm
- close up
- closed drain heater
- closed oil drain drum
- cloud point
- CMC
- CMMS
- CMND
- CMOD
- CO
- CO2
- CO2 fixed type extinguishing system
- coalescer
- coalescer prefilter
- COD
- code of practice
- coiling machine
- coke
- coke calcination unit
- coker
- coker amine sump
- coker naphtha transfer pump
- coker offgas amine absorber
- coker rich amine pump
- cold combined feed exchanger
- cold stripper feed reactor effluent exchanger
- collaborative process automation system
- collapsible
- collected tag
- color grade width
- color tone
- column top
- combined feed exchanger
- combined feed heater
- combined nitrogen
- combined unit of 4 sections: catcracker, reformer, hydrotreater, gas factionator
- combustion air blower
- combustion air preheater
