Abstract
With the implementation of the International Maritime Organization (IMO) marine fuel oil sulfur restriction policy in 2020, the desulfurization technology of marine residual fuel oil has received more attention from the industry. Heavy feedstock is the main component of marine residual fuel oil, and this paper introduces some of the heavy feedstock desulfurization technologies, mainly hydrodesulfurization, oxidation desulfurization, reactive metal desulfurization, adsorption desulfurization, biological desulfurization and extraction desulfurization. The respective advantages, disadvantages and applicability of these heavy feedstock desulfurization technologies are summarized.
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