Containment hydrogen removal system for a nuclear power plant

Details Containment hydrogen removal system for a nuclear power plant Containment hydrogen removal system for a nuclear power plant

1981-09-10

1984-02-07

Behrend, Harvey E.

Induced nuclear reactions: processes, systems, and elements

Fission reactor material treatment

Impurity removal

376300, G21C 1900, G21C 1300

Patent

active

044302932

ABSTRACT:
A hydrogen removal system (10) separates hydrogen from the containment atmosphere of a nuclear power plant using a hydrogen permeable membrane separator (30). Water vapor is removed by condenser (14) from a gas stream withdrawn from the containment atmosphere. The gas stream is then compressed by compressor (24) and cooled (28,34) to the operating temperature of the hydrogen permeable membrane separator (30). The separator (30) separates the gas stream into a first stream, rich in hydrogen permeate, and a second stream that is hydrogen depleted. The separated hydrogen is passed through a charcoal adsorber (48) to adsorb radioactive particles that have passed through the hydrogen permeable membrane (44). The hydrogen is then flared in gas burner (52) with atmospheric air and the combustion products vented to the plant vent. The hydrogen depleted stream is returned to containment through a regenerative heat exchanger (28) and expander (60). Energy is extracted from the expander (60) to drive the compressor (24) thereby reducing the energy input necessary to drive the compressor (24) and thus reducing the hydrogen removal system (10) power requirements.

REFERENCES:
patent: 3658996 (1972-04-01), Frumerman et al.
patent: 3910817 (1975-10-01), Frumerman et al.
patent: 3975170 (1976-08-01), Keating, Jr.

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