Chemical mode of operation of a water/steam cycle

Details Chemical mode of operation of a water/steam cycle Chemical mode of operation of a water/steam cycle

1996-11-05

1998-07-07

Bhat, Nina

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Maintaining environment nondestructive to metal

60 39182, 60 3953, 122460, 122472, 122488, C23F 1100, F02C 600, F02G 100

Patent

active

057764131

ABSTRACT:
A multi-pressure waste-heat boiler (7) comprises at least one circulation steam generator, having a low-pressure economizer (15), a low-pressure drum (17) and a low-pressure evaporator (16), and at least one once-through steam generator having a high-pressure economizer (21), a high-pressure evaporator (22) and a high-pressure superheater (23). An oxygen addition (32) is arranged between the steam drum (17) of the circulation steam generator and the high-pressure economizer (21) of the once-through steam generator. An ammonia addition (31) is arranged in the feed line (33) leading to the circulation steam generator.

REFERENCES:
patent: 2727069 (1955-12-01), Van Waes
patent: 2947686 (1960-08-01), Phillips, Jr.
patent: 3162550 (1964-12-01), Dvoracek et al.
patent: 3415692 (1968-12-01), Armentano
patent: 4031404 (1977-06-01), Martz et al.
patent: 4099374 (1978-07-01), Foster-Pegg
patent: 4693213 (1987-09-01), Yanai et al.
patent: 4758311 (1988-07-01), Pagani et al.

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