Ammonia’s Toxic Reality Forces Shipping Industry Rethink
For decades, bunkering has been one of shipping’s most routine operations. HFO, MGO, and even LNG have gradually become standardised through experience, infrastructure, and regulation. However, ammonia is forcing the industry to rethink almost every assumption about how fuel is transferred from shore to ship.
Ammonia‘s toxicity poses a significant challenge to the maritime industry. At 300 parts per million (ppm), it is immediately dangerous to life and health. At 1,600 ppm sustained for 30 minutes, it can kill. At 2,700 ppm, the margin before life-threatening exposure is measured in minutes. This is not a fuel that forgives mistakes, and the maritime industry is proposing to bunker it in some of the busiest port waters on earth.
Existing Infrastructure: A Double-Edged Sword
The chemical sector has been loading and discharging ammonia from gas carriers for decades, and around 180M metric tonnes are produced globally each year, predominantly as a feedstock for fertiliser. Around 140 ports worldwide already have ammonia facilities of one kind or another. However, this existing infrastructure is also a concern. When you get even the smallest vapour leak in the compressor room, you know about it.
The difference between loading ammonia as cargo and bunkering it as fuel lies in who is standing nearby and how prepared they are. On a gas carrier, the crew are specialists who understand emergency shutdown procedures and have trained for releases. In contrast, on a dual-fuel container ship, bulk carrier, or tanker bunkering ammonia at a commercial port, the situation looks very different.
Safety Culture: A Major Concern
The maritime industry still buries its head in paperwork when it comes to safety culture. The ambition of using ammonia as a mainstream marine fuel stops feeling like a clean energy story and starts to become a significant challenge. The question worth asking right now is whether the framework is keeping pace with the ambition.
Despite the challenges, the momentum is real, and the technology is developing. Serious organisations working on this problem are slowly and carefully building a framework that might make it work. As the industry navigates this complex issue, it must balance the need for a cleaner energy source with the imperative to ensure the safety of seafarers, shore staff, and surrounding communities.
Original Article: The most dangerous fuel shipping has ever tried to bunker — Rivieramm