To reduce greenhouse gas emissions from ships and to meet the increasingly stringent NOx emis-sion control regulations,methanol as a renewable and low carbon fuel has been subjected to a great deal of re-search in the marine sector.The production and fuel characteristics of methanol and the current research sta-tus of methanol application in engines are summarized.The analysis concludes that methanol,although tech-nologically mature for use in marine transportation and storage,necessitates larger marine fuel storage space because of its relatively low calorific value per unit volume.Using methanol fuel in engines can effectively re-duce the emission of NOx and carbon soot particles,while producing pollutants such as methanol and formal-dehyde.Compared with fuel blending and direct compression ignition,diesel-fired methanol engines are more suitable for marine power generation.
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