Application:-
- Petroleum refinery.
- Chemical plants.
- Natural gas processing plants.
- Petro chemical plants.
- Land fills.
- Offshore oil & gas rigs.
- Oil and gas production duties with oil Wells.
Purpose:-
These plants generates:-
- Toxic
- Flammable
- Corrosive
These substances can’t be directly discharged into the atmosphere.
Flare system generates significant amount of waste products. Like Methane, volatile organic compounds, organic chemicals,sulphur related compounds etc. As per “API 537” refinery or petrochemical plant to ensure the safe and efficient disposal of relived gases or liquids cannot be directly discharged into the atmosphere for the following reasons.
- Restrictions imposed by local ordinance or plant practices.
- Because of lesser permissible explosion or toxic threshold limit at a particular surrounding for local vents in plant.
- Inprocesses where long and severe waste exhaust temperature is anticipated,the gases cannot be vented locally because of hazardous condition.
In such cases flare system is the last line of defence.safe emergency release by burning of excess hydrocarbon gases is a better option.
For example Methane gas is 25 times more harmful than carbon dioxide towards global warming,so burning is better option. The process of safe burning these waste gases is called flaring.
Methane (CH4)+Oxygen (O2)+Heat =>Co2+H2o;
In combustion hydrocarbon gases like natural gas, propane, ethylene, propylene, butadiene,butane, etc that with atmospheric oxygen gives by products like carbon dioxide,water,other substances dependent on what is being burnt.
Efficiency of hydrocarbon conversion is generally over 98%.
Gas flare system is not a good option, better processing those byproduct gases and use it for other commercial purposes like power generation.