Fuel Gas Ssytem

___ is any one of a number of fuels that under ordinary conditions are gaseous. Many of them are composed of hydrocarbons (such as methane or propane), hydrogen, carbon monoxide, or mixtures thereof. 

• Liquefied Natural Gas

• Natural Gas

• Gasoline

• Fuel Gas

Answer explanation

Fuel Gas

What is the most common type of fuel gas used?

• Liquefied Natural Gas

• Natural Gas

• Gasoline

• Fuel Gas

Answer explanation

Natural Gas

How is Fuel Gas used in Brunei industry?

You can choose more than 1 answer.

• Fuel for various fired equipment applications within the plant or platform

• Provide blanket gas to vessels

• Provide fuel for transportation

• Supply gas to the pilots on the flare stack

Answer explanation

ALL except for provide fuel for transportation

What is the purpose of fuel gas system?

You can choose more than 1 answer.

• to further remove the water vapor from the dry air

• to treat and reduce the feed gas from the supply pressure to gas pressure required for the equipment

• to collect auxiliary gas from the process / pipelines

• to separate the gas into pure nitrogen gas and a mixture of liquid nitrogen and oxygen  

Answer explanation

the purpose of the fuel gas system is to collect auxiliary gas from the process / pipelines and to treat and reduce the feed gas from the supply pressure to gas pressure required for the equipment

What equipment should be at part (A)?

• Low Pressure Equipment

• Heater

• Pressure Reducing Station

• Scrubber / Knock Out Vessel

Answer explanation

Scrubber / Knock Out Vessel

What equipment should be at part (B)?

• Low Pressure Equipment

• Heater

• Pressure Reducing Station

• Scrubber / Knock Out Vessel

Answer explanation

Heater

What equipment should be at part (C)?

• Low Pressure Equipment

• Heater

• Pressure Reducing Station

• Scrubber / Knock Out Vessel

Answer explanation

Pressure Reducing Station

What equipment should be at part (D)?

• Low Pressure Equipment

• Heater

• Pressure Reducing Station

• Scrubber / Knock Out Vessel

Answer explanation

Low Pressure Equipment

Fuel gas first enters ___ to remove liquids entrained in the gas, which can cause condensates to form due to the adiabatic cooling effect of the pressure reduction.

• Heater

• Pressure Reducing Station

• Scrubbers / Knock Out Vessels

Answer explanation

Scrubbers / Knock Out Vessels

The gas is then heated up using ___ to avoid the formation of hydrates and slugging of condensed hydrocarbons after the expansion valves that could otherwise remain in the gas phase throughout the liquid removal process.

• Heater

• Pressure Reducing Station

• Scrubbers / Knock Out Vessels

Answer explanation

Heater