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Huntsman Corporation

Year Submitted: 2003

Process: Process Vents

Industry: Chemical Manufacturing

Wastes Reduced: VOC Emissions

Equipment: Thermal Oxidizer

Location: Conroe TX

No. of employees: 148

Contact: Don Gonzales

Phone: (409) 760-6287


Huntsman expanded the production capacity at the Conroe plant by the addition of an alkanolamine manufacturing unit. To treat the process vent from this facility Huntsman selected a thermal oxidizer as the control device. The process vent stream had a flow rate of approximately 250 scfm and contained substantial concentration of bound nitrogen compounds.

P2 Application:

Using standard thermal oxidization, the emissions of nitrogen oxides (NOx) from the thermal oxidizer would exceed 50 tons per year. Huntsman selected and installed a three stage, low NOx thermal oxidizer to reduce emissions to less than 12.6 tons per year. This three stage thermal oxidizer required additional instruments and analyzers to control the oxygen and temperature at proper levels for the most efficient combustion.

Environmental Benefits:

Thermal oxidation is the most efficient control technology to minimize the emissions vented to the atmosphere. The three stage system used by Huntsman reduces NOx emission by over 25 tons a year over standard thermal oxidation techniques. This process also reduces carbon monoxide levels to less than 100 ppm.

Details of Reductions

Additional Information :

One benefit and resulting cost savings realized by this project is energy conservation. If an absorber had been used to treat this gas stream, the absorber would have generated a liquid waste stream that required incineration. Since gas incineration in this particular process required less energy than liquid incineration, a considerable cost savings was realized in reduced natural gas usage.

Source: TCEQ

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