Chemistry of hydrocarbon compounds – Aromatic compound synthesis – Having alkenyl moiety – e.g. – styrene – etc.
Patent
1992-06-11
1993-03-23
Flanigan, Allen J.
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
Having alkenyl moiety, e.g., styrene, etc.
165133, 585654, C07C 5367
Patent
active
051966328
ABSTRACT:
The invention provides a method of extending the useful life of high temperature heat exchangers, e.g., reactor feed/effluent heat exchangers, in installations where the heat exchanger is contacted by a process fluid stream, e.g., a feedstock comprising ethylbenzene at a temperature where the process stream may cause deterioration of contacted metal surfaces of the heat exchanger and/or undergo catalytic reaction as a result of contact with the contacted metal surfaces. The new method comprises the step of mechanically removing material from those surfaces of the heat exchanger that are to be contacted by the process fluid stream, so as to render said surfaces less susceptible to attack from said high temperature process fluid stream.
REFERENCES:
patent: 3426091 (1969-02-01), Miron et al.
patent: 3739710 (1973-06-01), Costa et al.
patent: 4081913 (1978-04-01), Salminen
patent: 4436146 (1984-03-01), Smolarek
patent: 4806624 (1989-02-01), Herber et al.
Chen Shiou-Shan
Larsen Thomas L.
Noordzij Maarten P.
Underwood Max E.
Flanigan Allen J.
The Badger Company, Inc.
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