Innovations in Flare Stack Design for Low Calorific Value Waste Gases

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Title Innovations in Flare Stack Design for Low Calorific Value Waste Gases
Creator Schalles, D.
Contributor Cochran, M.
Date 2018-09-17
Description Paper from the AFRC 2018 conference titled Innovations in Flare Stack Design for Low Calorific Value Waste Gases
Abstract Oftentimes flare stacks serve as thermal oxidizers in refinery and petrochemical plants as a way to ensure that hydrocarbons and other volatile organic compounds do not enter the atmosphere. Use of flares, however, is more widespread serving other industries as well. Several upstream steps in the steel making process (for example) produce combustible, but not always economically useful, by-product gases (blast furnace gas, coke oven gas, basic oxygen furnace gas, etc.). Because these gases bear Carbon Monoxide, and sometimes variable amounts of hydrogen, it is usually necessary to oxidize them, often through a flare stack. Because these by-product gases contain fewer combustibles by volume, they typically fall outside of the EPA limits for calorific value (40 CFR §60.18). These gases have unique challenges for such types of flare systems. Not only are there common challenges of exposure to the elements, supply of adequate oxygen, etc., there are additional difficulties associated with reliable ignition, proper mixing, and flame stability.; Innovative designs address some of these issues, leading to better and more reliable performance. Following a brief technical discussion of these innovative designs, (such as improved ignition systems, and mixing strategies), this paper will explore a case study of a domestic installation and will take a more in-depth look at details of a retrofit on an existing hood with a modern ignition system and other state-of-the-art design features.
Type Event
Format application/pdf
Rights No copyright issues exist
OCR Text Show
Metadata Cataloger Catrina Wilson
ARK ark:/87278/s69w4rj2
Setname uu_afrc
Date Created 2018-12-12
Date Modified 2018-12-12
ID 1389181
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