Concentration cycles, percent life holding time and continuous t

Details Concentration cycles, percent life holding time and continuous t Concentration cycles, percent life holding time and continuous t

1988-12-19

1991-08-20

Raymond, Richard L.

Chemistry: analytical and immunological testing

Automated chemical analysis

Condition or time responsive

436 38, 436 52, 436 56, 436150, G01N 3508

Patent

active

050413864

ABSTRACT:
Concentration cycles, percent life holding time for a component in the boiler and continuous treatment concentrations are monitored or determined in a boiler system by adding to the feedwater an inert tracer in a predetermined concentration C.sub.I, which reaches a final concentration C.sub.F at steady state in the boiler and which exhibits a blowdown concentration C.sub.t at different points in time. The component is an inert tracer having no significant carryover in the steam, nor significant degradation during boiler cycles. The tracer is monitored by continuously converting a characteristic of its concentration to an analog which may be recorded as a function of time.

REFERENCES:
patent: 4251220 (1981-02-01), Larson et al.
patent: 4264329 (1981-04-01), Beckett
patent: 4472354 (1984-09-01), Passell et al.
patent: 4822744 (1989-04-01), Bellows

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