Laboratory method to estimate hydrogen chloride emission potential before incineration of a waste. Final report

Technical Report · Sun Jul 01 00:00:00 EDT 1990

OSTI ID:6657575

Peterson, M R; Albritton, J R; Jayanty, R K.M.

A laboratory method has been developed to provide an estimate of the amount of hydrogen chloride gas that will form during incineration of a waste. The method involves incineration of a sample of the waste at 900 C in a tube furnace, removal of particles from the resulting gases by filtration at 250 F (120 C), collection of hydrogen chloride gas in a water-filled impinger, and measurement of the collected HCl as chloride using a standard ion chromatography/conductimetric detection method. Duplicate experimental runs were conducted with quartz and with INCONEL components in the incineration zone of the apparatus. The two materials gave quite different results, which indicates some surface phenomenon may be involved. Results with quartz components indicated that organochlorine is essentially completely converted to HCl. Very ionic inorganic chlorides (e.g., KCl and NaCl) formed little or no HCl when incinerated in zero grade air (3ppm water and 1 ppm total hydrocarbon) but gave large amounts of HCl (20-80% conversion) if the incineration atmosphere contained 2.4-5.0% water vapor, which contains hydrogen for HCl formation. Results with less ionic inorganic chloride (FeCl3) and with chlorine in a positive oxidation state (NaCl solution) indicated significant conversion to HCl, especially in the presence of hydrogen from water vapor. In all cases, the presence of water vapor increased the amount of HCl formed, but INCONEL was judged less suitable than quartz because INCONEL gave low recovery of organohalogen as HCl.

• Research Organization: Research Triangle Inst., Durham, NC (USA)
• OSTI ID: 6657575
• Report Number(s): PB-90-235854/XAB
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
HYDROCHLORIC ACID
MEASURING METHODS
AIR POLLUTION
COMBUSTION
INCINERATORS
ION EXCHANGE CHROMATOGRAPHY
OXIDATION
PROGRESS REPORT
SAMPLE PREPARATION
WASTE DISPOSAL
CHEMICAL REACTIONS
CHROMATOGRAPHY
DOCUMENT TYPES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MANAGEMENT
POLLUTION
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
WASTE MANAGEMENT
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)