COMPUTATIONAL TOOL FOR COMPARATIVE ANALYSIS OF DIESEL AND HVO USE IN PORT OPERATIONS: A CASE STUDY AT THE PORT OF ITAQUI

Abstract

Port decarbonization has gained increasing relevance in light of international targets for greenhouse gas (GHG) mitigation and regulatory pressures on maritime transport. The intensive use of diesel in vessels, equipment, and land vehicles generates significant CO₂ emissions and local air pollutants. Hydrotreated vegetable oil (HVO) stands out as a promising alternative, with lifecycle CO₂ emission reductions ranging from 60% to 95% and compatibility with existing infrastructure, although it faces cost barriers. This chapter presents a computational tool developed in Python using the Streamlit library to estimate emissions and perform an economic comparison between diesel and HVO, applied to the Port of Itaqui (MA) across five projected scenarios for the time horizons of 2025 and 2050. The results indicate that, with carbon pricing, HVO becomes economically competitive in the long term, constituting a relevant tool to support the port energy transition.