Environmental Engineering Reference
In-Depth Information
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D.
B
IODESULFURIZATION OF
F
OSSIL
F
UELS
1. Introduction
Each day, more than 80 million barrels of oil are pumped from the Earth's surface. Of
this vast amount, the majority (~90 percent) is processed for use in fuels, which then are
combusted and released to the atmosphere in gaseous products [1]. Since sulfur constitutes up
to 5 percent of crude oils, usually as organosulfur compounds, these combustion products
include sulfur oxides and dioxides (SOx) that dissolve in atmospheric water vapor and
ultimately yield acid rain [2, 1, 3]. In addition, SOx are also believed to reduce the efficiency