System to reduce energy consumption in heterogeneous synthesis r

Details System to reduce energy consumption in heterogeneous synthesis r System to reduce energy consumption in heterogeneous synthesis r

1987-10-20

1990-08-07

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Ammonia synthesizer

422194, 422202, 422218, 422239, 423359, 423361, B01J 802

Patent

active

049466577

ABSTRACT:
The system to reduce the energy consumption of heterogeneous synthesis reactors, particularly of ammonia reactors, f.i. the "Chemico"-type reactor, foresees the insertion of two cylindrical walls at least partially perforated in order to annularly delimit the catalytic beds; the first outer wall (Fe) having a diameter (Di) slightly smaller than diameter (Dc) of the cartridge (C), has a height (Hi) higher than (H'i) of the internal cylindrical wall (Fi) which has a diameter inferior to the above mentioned (Di), but superior to the external diameter (Dt) of the central feed pipe (T) of the quench gas (QG). The top (SO) of the internal cylindrical wall (Fi) is closed by a cover (CO) that has a distance from the bottom (FO) of the basket equal to the mentioned height (H'i) of the internal cylindrical wall. The catalytic bed is therefore annular in diameter (Di-D'i) on all of the said height (H'i), but is substantially cylindrical (of diameter Di) on the height (Hi-H'i).
In the substantially annular zone (Q) between the cylindrical internal perforated wall (Fi) and the external face of the pipe (T), which is also at least partially perforated, the reacted and quench gases are collected.

REFERENCES:
patent: 4181701 (1980-01-01), Topsoe et al.
patent: 4372920 (1983-02-01), Zardi
patent: 4405562 (1983-09-01), Zardi et al.
patent: 4755362 (1988-07-01), Zardi et al.

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