Thermodynamic Study of Exhaust Gas from Waste Combustors Chlorine Gas Emission from Certain Chlorides

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  • 焼却排ガスの熱力学平衡論による考察―金属塩化物からの塩素ガスの発生―
  • ショウキャク ハイガス ノ ネツリキガク ヘイコウロン ニ ヨル コウサツ キンゾク エンカブツ カラ ノ エンソ ガス ノ ハッセイ

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Abstract

An equilibrium chlorine-gas concentration from some chlorides, NaCl, KCl, CuCl, NiCl2, ZnCl2and FeCl2was studied. The result showed that chlorine-gas liberation from NaCl and KCl can be ignored. The equilibrium concentration of CuCl increased as temperature decreased from 1, 000 to 500 K, while other chlorides displayed the opposite tendency. The concentration from CuCl was about 103-105ppm at 500 K in the presence of 0.1 atm O2, but others were 3-100 ppm. The result also showed that the order of chlorides characterized as a high chlorine gas producer was CuCl, FeCl2, ZnCl2and NiCl2.

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