Fuel Gas System Test Questions and Answers

Fuel Gas System

•Provides fuel gas at the required temperature & pressure to equipment.

•Collects gases that would otherwise be

flared as waste & blend them for beneficial use within the facility. - Answer-What is the two purposes of
the Fuel Gas System?



•Flares

•Thermal Oxidizer 5L401

•Auxiliary Boilers 5B521 A/B

•Gas Turbines 5GT501 A/B. - Answer-What equipment do we provide fuel gas to?



•End Flash Gas from the Nitrogen Stripper 5C551 overhead

•Propane Reclaimer Vent from the Propane Vent Condenser 5E521

•Boil Off Gas (BOG) from the existing plant system

•Stabilizer Overhead Vapor from the Stabilizer Reflux Drum 5V532

•Regeneration Gas from Regeneration Gas Separator 5V302 - Answer-What equipment do we collect
gas's from?



•Instrument Air

•LP Steam - Answer-What system interfaces does the Fuel gas system have?



•HP Fuel Gas Heater (5E905)

•Auxiliary Boiler Fuel Gas Mixing Drum (5V918)

, •Fuel Gas Heater Steam Condensate Pot (5V911)

•Startup Electric Heater (5E903)

•Stabilizer off Gas KO Drum (5V907)

•Flash Gas Compressor (5K905A/B/C

•Flash Gas Compressor Aftercooler (5E901A/B/C)

•Fuel Gas KO Drum (5V903)

•Fuel Gas Compressor (5K901A/B/C)

•Fuel Gas Compressor Inter-cooler (5E907A/B/C)

•Fuel Gas Compressor Aftercooler (5E900A/B/C)

•HP Fuel Gas Mixing Drum (5V917) - Answer-What are the Major components in this system?



•Burn hazard

•Freeze hazard

•Noise

•Rotating Equipment

•Fire/Explosion

•Gas release

•Hazardous chemical release

•Asphyxiation - Answer-What are the process hazards in this system?



Heats the incoming pipeline fuel gas. - Answer-What is the purpose of the HP Fuel Gas Heater (5E905)?



Ensure the fuel gas heat heater has a steady constant level which in turn gives better temperature
control. - Answer-What is the purpose of the Fuel Gas Heater Steam Condensate Pot (5V911)?