Boots – shoes – and leggings
Patent
1982-05-07
1985-01-01
Zache, Raulfe B.
Boots, shoes, and leggings
364557, 422 62, 422110, G05D 7100
Patent
active
044919247
ABSTRACT:
A temperature control system controls the temperature of an olefin oxidation reactor by measuring various parameters in the reactor and in flow lines to and from the reactor, and using these parameters with known quantities for specific heat of the feed and effluent and heats of vaporization and reaction, to calculate a coolant flow rate set point. Parameters relating to the heat balance with regard to a desired olefin oxide product and undesired carbon dioxide products are utilized for correct control. Equipment is also provided for ascertaining the state of a catalyst used in the reaction. Circuit components are provided for obtaining changes in flow rates, temperatures and concentrations to calculate a change in coolant flow rate as well as the steady state fluent flow rate quantity to improve the system response to start up, shut down and transient conditions.
REFERENCES:
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patent: 3471582 (1969-10-01), Lupfer
patent: 4111218 (1978-09-01), Hobbs
patent: 4132530 (1979-01-01), Schwimmer
patent: 4236219 (1980-11-01), Killebrew, Jr. et al.
patent: 4241230 (1980-12-01), Drinkard
patent: 4249907 (1981-02-01), Callejas
patent: 4249908 (1981-02-01), Funk
patent: 4329150 (1982-05-01), Drinkard
Edwards Robert J.
Matas Vytas R.
Shaw Dale M.
The Babcock & Wilcox Company
Zache Raulfe B.
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