Method and system for detecting coking growth and maldistribution in refinery equipment
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United States of America Patent
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Jan 30, 2018
Issued Date -
N/A
app pub date -
Mar 27, 2014
filing date -
Mar 28, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
Systems and methods for detecting coking in a wash bed of a vacuum pipe still with a sensing cable including an optical fiber sensor array aligned with a heating element disposed in the vessel. An optical signal interrogator is configured to measure a first temperature profile at a plurality of sensor locations to determine a flow distribution. An excitation source is configured to propagate at least one heat pulse through the heating element and the optical signal interrogator is configured to measure a second temperature profile corresponding to the heat pulse at the sensor locations. A control unit is configured to detect coking by determining one or more properties of the media exposed to the sensing cable at each of the plurality of sensor locations based on the second temperature profile corresponding thereto.
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International Classification(s)
- G01K:MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT;....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....
- C10G:CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HY....
- G01F:MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUI....
- B01D:SEPARATION
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