Method for controlling chloride concentration in the flue gas of a recovery boiler

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5989387
SERIAL NO

08583033

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for adjusting the chlorine equilibrium in a sulphate cellulose process, wherein part of the chlorine contained in the cycle is separated and removed. In the method, strong odour gases from the sulphate cellulose process are introduced into a soda recovery boiler for burning so that chlorine contained in the liquor is in the form of hydrogen chloride (HCl) in the upper part of the soda recovery boiler and can subsequently be separated from the flue gases in a flue gas scrubber. The chlorine equilibrium is adjusted by removing part of the chlorine-containing washing solution.

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Patent Owner(s)

  • KVAERNER POWER OY

International Classification(s)

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  • 1996 Application Filing Year
  • D21C Class
  • 86 Applications Filed
  • 34 Patents Issued To-Date
  • 39.54 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19961997199819992000200120020255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alaniemi, Maiju Tampere, FI 1 3
Hamalainen, Risto Tampere, FI 6 74
Harila, Pauli Kemi, FI 4 5
Hyoty, Paavo Tampere, FI 5 21
Imelainen, Keijo Keminmaa, FI 4 5
Kivilinna, Veli-Antti Lautiosaari, FI 3 5
Klami, Ahti Kemi, FI 3 5

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Patent Citation Ranking

  • 3 Citation Count
  • D21C Class
  • 5.77 % this patent is cited more than
  • 26 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges336543101 - 1011 - 2021 - 3031 - 4051 - 6001020302.557.512.51517.522.52527.532.53537.540

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