Hydrogen chloride recovery process

Treatment of waste liquid containing organic chloride compound

This process is that HCl which is formed by incinerating organic chloride compounds is recovered as HCl solution / gas.



  • Complete decomposition of organic compounds
  • Efficient heat recovery from high temperature with boiler
  • Recovered HCl concentration can be higher than azeotropic composition by adding stripper.

Application examples

  • Waste gas/liquid of organic chloride compounds and organic silicate compounds.
  • Pickling waste acid.


Chlorosilane waste liquid and gas

Item Waste liquid A Waste liquid B Waste gas A Waste gas B
Capacity 270kg/h 100kg/h 640kg/h 430kg/h
High heating value 26,000kJ/kg 3,000kJ/kg 8,000kJ/kg 2,500kJ/kg
Supply location Burner Furnace Burner Furnace
Operating time 24 hours continuous
Combustion temperature 1,200℃
Exhaust gas residence time 2 seconds or more
Combustion load 13,500MJ/h
Exhaust gas flow rate 10,000m3/h (NTP)
Effluent water flow rate 2,000kg/h
Recovered HCl concentration 15wt%
Recovered hydrochloric acid flow rate 3,000kg/h
Recovered steam pressure 1.2MPaG(Saturated)
Recovered steam flow rate 2,000kg/h
Exhaust gas Dust 80mg/m3(NTP) or less
NOx 500mg/m3(NTP) or less
SOx 300mg/m3(NTP) or less
HCl 70mg/m3(NTP) or less
Foot print 35m × 25m × 20mH

Equipment flow