Fire Prevention And Environmental; Applications - MTU 12V4000M*3 series Operating Instructions Manual

1.7 Fire prevention and environmental protection, fluids and
lubricants, auxiliary materials, specific information for
gaseous fuel supply in gaseous-fuel or dual-fuel applications
General notes on gas
Observe the information contained in the safety data sheet of the gas used. Consult with gas supplier/utility.
The gas used must comply with the (→ Fluids and Lubricants Specifications of the manufacturer).
Risk of poisoning due to hazardous impurities. The ingestion of even small quantities of hydrogen sulfide or
ammonia can be fatal.
Inhaling certain gases can be dangerous to life depending on concentration. Furthermore some gases can no
longer be detected by smell in higher concentrations.
Conduct in case of escaping gases:
• If safe to do so: Shut off main gas supply.
• If safe to do so: Execute an emergency stop.
• Cordon off danger zone.
• Ensure sufficient ventilation.
• Do not enter the hazard zone until it has been established (via measurement of the gas concentration with
a suitable gas detector) that the atmosphere is no longer hazardous.
Check all gas conveying lines for tightness prior to initial operation and at regular intervals during operation.
Natural gas (pipeline quality or treated Compressed Natural Gas (CNG) or
Liquified Natural Gas (LNG))
Highly flammable gas; forms an explosive mixture with air/oxygen.
Weakly narcotic gas; risk of suffocation at high concentrations.
Biogenic gases from fermentation processes
Highly flammable gas; forms an explosive mixture with air/oxygen.
Risk of poisoning due to hydrogen sulfide from the fermentation process. The ingestion of even small quanti-
ties of hydrogen sulfide can be fatal.
Weakly narcotic gas; risk of suffocation at high concentrations.
Biogenic gases have a tendency to segregate. In low-lying areas of the plant, carbon dioxide enrichment is
possible.
18 | Safety | MS15036/00E 2018-08