Method and apparatus for off-gas composition sensing

Patent · Thu Dec 31 23:00:00 EST 1998

OSTI ID:872663

Ottesen, David Keith ^[1]; Allendorf, Sarah Williams ^[2]; Hubbard, Gary Lee ^[3]; Rosenberg, David Ezechiel ^[4]

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1. Livermore, CA
2. Fremont, CA
3. Richmond, CA
4. Columbia, MD

An apparatus and method for non-intrusive collection of off-gas data in a steelmaking furnace includes structure and steps for transmitting a laser beam through the off-gas produced by a steelmaking furnace, for controlling the transmitting to repeatedly scan the laser beam through a plurality of wavelengths in its tuning range, and for detecting the laser beam transmitted through the off-gas and converting the detected laser beam to an electrical signal. The electrical signal is processed to determine characteristics of the off-gas that are used to analyze and/or control the steelmaking process.

• Research Organization: American Iron and Steel Institute (Washington, DC)
• DOE Contract Number: FC07-93ID13205
• Assignee: American Iron and Steel Institute (Washington, DC)
• Patent Number(s): US 5984998
• OSTI ID: 872663
• Country of Publication: United States
• Language: English

Related Subjects

/75/266/
analyze
apparatus
beam
beam transmitted
characteristics
collection
composition
control
controlling
converting
data
detected
detecting
determine
electrical
electrical signal
furnace
gas composition
gas produced
laser
laser beam
method
non-intrusive
off-gas
plurality
position sensing
process
processed
produced
range
repeatedly
scan
sensing
signal
steelmaking
steelmaking process
steps
structure
transmitted
transmitting
tuning
wavelengths