Efficiency control system for chlorine dioxide plants

Details Efficiency control system for chlorine dioxide plants Efficiency control system for chlorine dioxide plants

1979-09-13

1981-02-17

Hearn, Brian E.

Chemistry of inorganic compounds

Halogen or compound thereof

Chlorine dioxide

23230A, 422 62, 422111, 422119, 422129, 364497, 364500, 364502, C01B 1102, G01N 3100

Patent

active

042515033

ABSTRACT:
An automatic continuous monitoring system for a chlorine dioxide generating process (10) which produces a gaseous mixture of chlorine dioxide and chlorine (12) is described. The automatic system eliminates the need for periodic manual analysis of the off-gas stream and enables changes in the process efficiency to be rapidly compensated for. The system preferably utilizes a gas-liquid chromatograph analyzer (36) to analyze the off-gases from the generator (10) and to provide signals (42, 44) corresponding to the measured amounts of chlorine dioxide and chlorine. These signals then are converted (46) to a signal (47) corresponding to the ratio of chlorine dioxide and chlorine in the off-gas stream. The ratio then is converted to the efficiency (48). The efficiency value so obtained (49) may be compared with a previously determined value and changes compensated for by catalyst and/or reactant feed variations.

REFERENCES:
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patent: 3960500 (1976-06-01), Ross
patent: 4086328 (1978-04-01), Swindells

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