The application of flameless thermal oxidation in the treatment of sulfonated VOCs - a case study
- Thermatrix, Inc., Knoxville, TN (United States)
The characteristic odor of Kraft Process pulp mills results largely from the release of sulfur-bearing volatile compounds, e.g., methyl mercaptan, dimethyl sulfide, dimethyl disulfide and hydrogen sulfide. Regulations restricting the release of these compounds have become increasingly more stringent in recent years. Incineration in baseline combustion devices, namely, lime kilns and boilers, has been the treatment most commonly used to destroy these compounds. Conventional incineration technologies are adversely impacted by a lack of public acceptance and difficulty in achieving high destruction and removal efficiencies. Therefore, there has been considerable interest in the development and application of emerging technologies for controlling emissions of these sulfur-bearing chemicals. In 1994-95, Thermatrix designed, fabricated and installed a flameless oxidation back-up system to treat the non-condensable gases at a pulp mill. These non-condensable gases (NCGs) contain significant quantities of sulfur-bearing volatile organic compounds (VOCs). The system is comprised of a gas inlet train, a Thermatrix flameless thermal oxidizer for sulfonated VOC destruction, a wet scrubber for SO{sub 2} removal, and a stack. Commissioning of the system was completed in August 1995. During and subsequent to the commissioning activities more that 1,000 hours of operation on NCGs have been logged and all performance criteria established for the project have been met. In operations to date the following have been demonstrated: (a) destruction and removal efficiency (DRE) for total reduced sulfur compounds of > 99.99%; (b) a SO{sub 2} emission rate of < 15 ppm, (c) SO{sub 2} removal of > 99.98%; and (d) a H{sub 2}S emission rate of < 5 ppm. This successful project demonstrates an innovative solution to a real-world VOC control challenge. 2 refs., 3 figs., 2 tabs.
- OSTI ID:
- 621372
- Report Number(s):
- CONF-960273-; TRN: 98:002183-0032
- Resource Relation:
- Conference: Air and Waste Management Association (AWMA) specialty conference on emerging solutions to VOC and air toxics control, Clearwater Beach, FL (United States), 28 Feb - 1 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of Emerging solutions to VOC and air toxics control; PB: 457 p.
- Country of Publication:
- United States
- Language:
- English
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