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The most significant advantage of operating within the recommended range is two-fold: Operating above the minimum recommended 2 percent excess oxygen would ensure proper oxidation of sulfur compounds. Operating below the maximum recommended value of 5 percent excess oxygen will provide a reduction in fuel gas usage. An added bonus of operating with a decrease in excess oxygen is the reduction of CO (a greenhouse gas) emissions associated with a decrease in fuel gas consumption.

It’s possible to monitor excess oxygen concentrations within the sulfur plant incinerator by using the zirconium-oxide measurement principle. Zirconium oxide is an in situ measurement that provides a fast and reliable measurement of excess oxygen in the sulfur plant incinerator exhaust gas. To counteract the poisoning affect that SOhas on standard zirconium-oxide sample cells, new sulfur resistant cells are available.

Summary of economic and environmental benefits:

• Reduction in greenhouse gas emissions
• Reduction of fuel gas consumption
• Reduction in combustion air blower requirements

Analyzer Performance:

• Accuracy 0.75% of reading or 0.05% O
• Withstands high sulfur process gases

To learn more about instrumentation that can optimize incinerator operation, click HERE.

How do you optimize oxygen levels in your combustion applications?