Hydrogen chloride recovery process

Inquiry

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.

Features

• 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.

Examples

Chlorosilane waste liquid and gas

Item		Waste liquid A	Waste liquid B	Waste gas A	Waste gas B
Capacity		270 kg/h	100 kg/h	640 kg/h	430 kg/h
High heating value		26,000 kJ/kg	3,000 kJ/kg	8,000 kJ/kg	2,500 kJ/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		13,500 MJ/h
Exhaust gas flow rate		10,000 m³/h (NTP)
Effluent water flow rate		2,000 kg/h
Recovered HCl concentration		15 wt%
Recovered hydrochloric acid flow rate		3,000 kg/h
Recovered steam pressure		1.2 MPaG(Saturated)
Recovered steam flow rate		2,000 kg/h
Exhaust gas	Dust	80 mg/m³ (NTP) or less
	NOx	500 mg/m³ (NTP) or less
	SOx	300 mg/m³ (NTP) or less
	HCl	70 mg/m³ (NTP) or less
Foot print		35 m × 25 m × 20 m H

Equipment flow

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