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| Sulphuric Acid on the WebTM | Technology Manual | DKL Engineering, Inc. |
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Knowledge for
the Sulphuric Acid Industry Introduction
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After the gas cleaning system, the SO2
concentration is unknown as well as the O2:SO2
ratio. Air dilution may be required to achieve the desired conversion in the
converter. On-line continuous measurement of SO2 and O2
may be required to control the amount of dilution air being added to the process. An instrument that draws a gas sample from the main process
stream is preferred over an in-line instrument because of the problem of maintaining the
instrument. If the instrument is in-line it often cannot be removed during operation
for maintenance, calibration or repair without a complete plant shutdown. At Westcoast and Noranda an in-line probe was used sampling directly in the
process gas stream. The rubber O-ring seal deteriorated and allowed process gas to
damage the electronics resulting in an instrument failure.
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Copyright© 2005,
2006, 2007, 2008 DKL
Engineering, Inc., All Rights Reserved |
