March 2009

Trends and Resources

HP Innovations

Regenerable SO2 scrubbing eases environmental pressures To manage growing strategic pressures from green fuels and environmental issues, refiners will be required to direct more attention to their ref..

Regenerable SO2 scrubbing eases environmental pressures To manage growing strategic pressures from green fuels and environmental issues, refiners will be required to direct more attention to their refinery total sulfur balance. Non-regenerable sulfur dioxide (SO2) scrubbing systems will increase costs as expenses for reagents such as sodium hydroxide, lime or limestone increase. Further, tighter environmental controls will likely limit disposal of gypsum to landfill or to disposal of sodium sulfate into refinery wastewater streams. Regenerable SO2 scrubbing systems can help ease many of the environmental and market-induced pressures that are associated with greater use of high-sulfur cru

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