Electrically heated reactor for high temperature and pressure ch

Details Electrically heated reactor for high temperature and pressure ch Electrically heated reactor for high temperature and pressure ch

1981-03-09

1984-06-26

Bartis, A.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

137341, 219301, 219316, 422174, 422199, C21D 100, H05B 300

Patent

active

044561865

ABSTRACT:
An electrically heated reactor for high temperature and pressure chemical reactions includes a reactor vessel having an inlet opening for introduction of raw material onto the reactor and an outlet opening for removal of heated material from the reactor. An electric heating assembly extends through the inlet opening into the interior of the vessel and includes a metallic inner tube through which raw material can be introduced into the vessel and an outer ferromagnetic tube arranged in spaced concentric relationship with respect to the inner tube and generally coextensive in length therewith. The innermost ends of the tubes are electrically connected to each other by a metallic member which seals the space between the tubes. An electrical insulating medium is disposed within the space. A variable frequency alternating current source is connected between the inner and outer tubes outside of the vessel and the outer tube is in direct contact with and is welded to the wall of the vessel at the inlet opening to form a seal therebetween. The outer tube has a thickness greater than the penetration depth of the alternating current. The inner tube may be ferromagnetic and have a thickness like that of the outer tube.

REFERENCES:
patent: 2729734 (1956-01-01), Decker
patent: 3293407 (1966-12-01), Ando
patent: 3629551 (1971-12-01), Ando
patent: 3777117 (1973-12-01), Othmer

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