The role of gas-phase Cl2 in the formation of PCDD/PCDF during waste combustion

✍ Scribed by Kevin R. Bruce; Laura O. Beach; Brian K. Gullett

• Book ID: 103975379
• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 465 KB
• Volume: 11
• Category: Article
• ISSN: 0956-053X
• DOI: 10.1016/0956-053x(91)90086-k

✦ Synopsis

Results of previous experiments investigating formation of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/PCDF) through low-temperature (300°C), fly-ash-catalyzed reactions are demonstrated to have occurred through intermediate formation of gas-phase Cl 2 by decomposition of the added catalyst, CuCI 2. The dependence of PCDD/PCDF formation rates on CI2 concentration is shown and the implications of the Deacon process on these rates discussed. A scheme for controlling the formation of PCDD/PCDF during incineration using sorbent materials to remove the source of Cl at high temperatures is proposed.