Green Methanol Marine Engines: Farizon Leads the Global Transition to Sustainable Shipping

The Evolution of Methanol Engine Technology
Globally, research into Methanol marine engines has progressed through three key phases:

Low-Pressure Port Fuel Injection Technology
Early methanol engine systems utilized low-pressure port injection with premixed combustion. While methanol’s high volatility and octane number made it suitable for spark-ignition engines, this approach limited substitution rates to approximately 40%. At medium and high loads, high methanol substitution ratios often led to uncontrolled combustion, causing knocking and potential engine damage—making it unsuitable for heavy-duty marine applications.

High-Pressure Direct Injection Pure Methanol Technology
Some international researchers explored compressing and igniting pure methanol via direct injection. However, methanol’s extremely low cetane number makes auto-ignition challenging without supporting measures. Experiments showed that even at a compression ratio of 15:1, intake air had to be heated to 155°C to achieve stable operation—a impractical requirement for real-world marine use.

High-Pressure Direct Injection with Diesel Ignition
Farizon’s marine methanol engines adopt this advanced approach. By directly injecting methanol into the cylinder and using a small amount of diesel for ignition, this strategy overcomes the limitations of earlier technologies.

Farizon’s Breakthrough: 92% Methanol Substitution
In 2019, Farizon launched pioneering R&D based on a 1–2 MW CS21 diesel platform. Through innovations in high-pressure methanol injection, micro-pilot ignition, and multi-parameter combustion optimization, we achieved a landmark 92% methanol substitution rate—far exceeding earlier technological constraints.

Our methanol-diesel dual-fuel engines demonstrate:

Significantly improved fuel economy

Enhanced acceleration and load response

Superior emission performance compared to conventional Diesel Engines

Meeting Global Demand for Sustainable Propulsion
With shipowners worldwide seeking compliant and efficient methanol solutions, Farizon is ready to deliver. Our high-substitution-rate, high-performance methanol-dual fuel medium-speed engines are designed to meet and exceed International Maritime Organization (IMO) emissions regulations while providing operational reliability across diverse conditions.

Why Choose Farizon Methanol Engines?

Proven Technology: Validated through rigorous bench testing and real-world simulations

Future-Ready Compliance: Meets IMO Tier III and global carbon reduction targets

Seamless Integration: Uses existing methanol bunkering infrastructure worldwide

Global Service Support: Backed by Farizon’s international technical network

As renewable methanol production scales up across continents, Farizon engines offer a practical and sustainable pathway to decarbonization—without compromising on power or reliability.