Vibrational control of chemical reactors: Selectivity enhancement, stabilization and improvement of transient behavior: Progress report for the period April 1, 1988--March 31, 1989

Technical Report · Thu Dec 01 00:00:00 EST 1988

OSTI ID:6448964

Cinar, A

In this project, the effects of vibrational control on stabilization and improvement of transient behavior of tubular packed-bed chemical reactors and on selectivity and yield improvement in complex chemical reactions are studied. During the second year of the project, a numerical singularity analysis technique has been developed and applied to the open-loop and feedback controlled CO oxidation reactor. The technique is applicable to various kinds of reactor systems and reactions, and it can be used to classify their qualitatively different static bifurcation behaviors. The technique is being extended to analyze and classify the bifurcation behavior of the reactor system under vibrational control. A reduced-order model of the CO oxidation reactor has been developed and used in the vibrational-feedback control studies. Procedures for developing low order vibrational-feedback controllers are being investigated. To study selectivity and yield improvement by vibrational control, numerical and experimental vibrational control studies have been conducted using the ethylene oxidation reaction in an isothermal internal recycle reactor. Forced vibrations in inlet concentration and/or total flow rate have not caused any appreciable improvement in the selectivity and yield of ethylene oxidation. Effects of periodic operation on the nonisothermal internal recycle reactor are being investigated. 7 refs., 1 fig.

• Research Organization: Illinois Inst. of Tech., Chicago (USA). Dept. of Chemical Engineering
• DOE Contract Number: FG02-87ER13696
• OSTI ID: 6448964
• Report Number(s): DOE/ER/13696-2; ON: DE89005901
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
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ON-LINE CONTROL SYSTEMS
NUMERICAL ANALYSIS
CARBON MONOXIDE
ETHYLENE
FEEDBACK
MECHANICAL VIBRATIONS
OXIDATION
PACKED BED
PROGRESS REPORT
YIELDS
ALKENES
CARBON COMPOUNDS
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