Multitube reactor, vapor phase catalytic oxidation method...

Details Multitube reactor, vapor phase catalytic oxidation method... Multitube reactor, vapor phase catalytic oxidation method...

2006-12-05

2006-12-05

Witherspoon, Sikarl A. (Department: 1621)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including heat exchanger for reaction chamber or reactants...

C422S198000, C422S200000, C422S201000, C562S532000, C568S476000

Reexamination Certificate

active

07144557

ABSTRACT:
A multitube reactor, wherein tubes having smaller tolerance between a nominal size and actual sizes are used as reaction tubes to stably perform a high yield reaction for a long period, a catalyst is filled into the reaction tubes so that the catalyst layer peak temperature portions of the reaction tubes are not overlapped with the connection sites thereof with baffles to effectively prevent hot spots from occurring and stably perform a reaction for a long period without the clogging of the reaction tubes, a heat medium and raw material gas are allowed to flow in the direction of a countercurrent and a specified type of catalyst is filled into the reaction tubes so that activity is increased from the inlet of the raw material gas to the outlet thereof to prevent the autooxidation of products so as to prevent equipment from being damaged due to the reaction, and, at the time of starting, gas with a temperature of 100 to 400° C. is led to the outside of the reaction tubes to increase the temperature of the reaction tubes and, a heat medium, which is solid at the room temperature, is heated to circulate to the outside of the reaction tubes to efficiently start up the reactor without affecting the activity of the catalyst.

REFERENCES:
patent: 5006131 (1991-04-01), Karafian et al.
patent: 5149884 (1992-09-01), Brenner et al.
patent: 5677261 (1997-10-01), Tenten et al.
patent: 5772870 (1998-06-01), Basse
patent: 6057481 (2000-05-01), Brockwell et al.
patent: 6582667 (2003-06-01), Ogata et al.
patent: 6808689 (2004-10-01), Matsumoto et al.
patent: 6946573 (2005-09-01), Matsumoto et al.
patent: 2003/0065194 (2003-04-01), Weiguny et al.
patent: 1289634 (2001-04-01), None
patent: 1323779 (2001-11-01), None
patent: 2140125 (1972-02-01), None
patent: 62-201646 (1987-09-01), None
patent: 63-054941 (1988-03-01), None
patent: 6-13096 (1994-02-01), None
patent: 6-38918 (1994-05-01), None
patent: 8-92147 (1996-04-01), None
patent: 2000-93784 (2000-04-01), None
patent: 2001-310123 (2001-11-01), None
patent: 01/68626 (2001-09-01), None

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