Life Cycle Assessment of Methanol from Fossil, Biomass, and Waste Sources, and Its Use as a Marine Fuel in Dual-Fuel Engines.

ABSTRACT: Methanol is gaining interest in the marine sector from energy security and reducing emissions perspective. This study provides a comparative life cycle assessment of methanol as a marine fuel, across GHG and criteria air pollutant emission metrics, when it is used in a dual-fuel engine. Twelve methanol pathways from four different feedstock categories were considered, including (1) cellulosic biomass─forest residues and clean pine mix, corn stover, switchgrass, and miscanthus; (2) organic wastes─renewable natural gas from wastewater sludge, swine manure, food waste, and landfill gas; (3) fossil resources─coal and natural gas (NG); and (4) e-methanol using captured carbon dioxide. When used in a dual-fuel engine with pilot fuel, life cycle GHG emissions for woody biomass-based methanol were

SUBMITTER: Masum FH 

PROVIDER: S-EPMC12593331 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature