Higher degree decomposition of harmful organic compounds containing chlorine by using molten salts

Yuzuru Sato, Daisuke Aoki, Yojiro Yamauchi, Tsutomu Yamamura

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The decomposition of C6H5CI, which is similar to harmful compounds such as PCBs, was investigated using the basic molten salt mixtures, KOH- K2CO3 and NaOH-Na2CO 3. A sample of C6H5Cl was injected, together with a carrier gas, either imitation air (N2-21%O2) or N2, into the molten salts in the temperature range from liquidus to 700°C The exhaust was analyzed by using GC/MS both quantitatively and qualitatively. The concentration of C6H5Cl remaining in the exhaust was extremely low and the decomposition efficiency was at least 99.999% for both imitation air and N2 as carrier gas. However, C 6H5Cl was not completely decomposed to CO2 and H2O if the concentration of oxygen was lower than the stoichiometric ratio: instead many intermediate compounds were formed, and all were chlorine-free. The results indicated that the chlorine in C6H 5Cl was effectively removed by the alkali hydroxide-carbonate mixtures even if oxygen is not contained in the carrier gas. Potassium salts are somewhat better than the sodium salts in their capacity for decomposition.

本文言語English
ホスト出版物のタイトルMolten Salts XIV - Proceedings of the International Symposium
ページ216-225
ページ数10
出版ステータスPublished - 2006 12月 1
イベント206th ECS Meeting - Honolulu, HI, United States
継続期間: 2004 10月 32004 10月 8

出版物シリーズ

名前Proceedings - Electrochemical Society
PV 2004-24

Other

Other206th ECS Meeting
国/地域United States
CityHonolulu, HI
Period04/10/304/10/8

ASJC Scopus subject areas

  • 工学(全般)

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