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Accession number;99A0124703
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| Title;" Ununderstandable " troubleshooting of measuring instruments on site 12. Pressure gage ( 1 ). Unique process control by VAPOR PRESSURE TRANSMITTER. |
| Author;
IKAWA SHIZUKA
(Chiyoda Corp.)
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Journal Title;Keiso
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Journal Code:F0485A
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ISSN:0368-5780
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VOL.42;NO.2;PAGE.66-67(1999)
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| Figure&Table&Reference;FIG.2 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Accident example of differential pressure oscillator for control of propane/propylene separation column is introduced.This oscillator was led to one side column real pressure and to another side reference liquid. At starting point of operation, composition as designed has led to satisfied operation.With changing feed composition, however, control has become out of order by abnormal conditions of set values. Importance of careful consideration of operating range in designing and designing from standpoint of process control was suggested. |
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