Method for removing hydrogen chloride from exhaust gas discharge

Details Method for removing hydrogen chloride from exhaust gas discharge Method for removing hydrogen chloride from exhaust gas discharge

1988-06-01

1989-07-11

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Halogenous component

C01B 700

Patent

active

048470562

ABSTRACT:
A method for removing hydrogen chloride from an exhaust gas discharged from an incinerator, which comprises the steps of: causing hydrogen chloride contained in an exhaust gas discharged from an incinerator to react with slaked lime in slurry to form basic calcium chloride; detecting a concentration (y) of hydrogen chloride remaining in the exhaust gas after the reaction with slaked lime; determining a deviation (.DELTA.y) of the thus detected concentration (y) of hydrogen chloride from a target concentration (y.sub.o) thereof; determining a corrected deviation (.DELTA.y') by adding to the above-mentioned deviation (.DELTA.y) a correction value (.DELTA.y.sub.1) calculated in accordance with the following formulae:

REFERENCES:
patent: 4246242 (1981-01-01), Butler et al.
patent: 4302205 (1981-11-01), Muraki et al.
patent: 4565679 (1986-01-01), Michalak et al.

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