Overview of Research Status and Development Trends in Diesel Desulfurization Technology

Diesel desulfurization is a critical process for reducing the sulfur content in diesel fuel and mitigating the negative impact of sulfur-containing exhaust gases for the environment. As a cornerstone of the refining industry, desulfurization has garnered significant attention for producing cleaner fuels and reducing pollution. Currently, the primary desulfurization technologies include hydrodesulfurization (HDS), oxidative desulfurization (ODS), biodesulfurization (BDS), adsorptive desulfurization (ADS), and electrochemical desulfurization (ECDS). With the development of global economic competition and the advancement of technological innovation, diesel desulfurization technologies are evolving toward higher efficiency, lower costs, and resource-oriented utilization. This article provides a detailed account of the various desulfurization technologies under investigation and offers an overview of the emerging ultra-deep desulfurization techniques aimed at producing ultra-low-sulfur fuels.