氯代苯类化合物在飞灰表面的热分解

高洪才; 倪余文; 张海军; 陈吉平

环境化学

氯代苯类化合物在飞灰表面的热分解

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高洪才, 倪余文, 张海军, 陈吉平. 氯代苯类化合物在飞灰表面的热分解[J]. 环境化学, 2010, 29(3): 434-438.

引用本文:

高洪才, 倪余文, 张海军, 陈吉平. 氯代苯类化合物在飞灰表面的热分解[J]. 环境化学, 2010, 29(3): 434-438.

GAO Hong-cai, NI Yu-wen, ZHANG Hai-jun, CHEN Ji-ping. THERMAL DECOMPOSTION OF CHLORINATED BENENES ON THE SURFACE OF FLY ASH[J]. Environmental Chemistry, 2010, 29(3): 434-438.

Citation:

GAO Hong-cai, NI Yu-wen, ZHANG Hai-jun, CHEN Ji-ping. THERMAL DECOMPOSTION OF CHLORINATED BENENES ON THE SURFACE OF FLY ASH[J]. Environmental Chemistry, 2010, 29(3): 434-438.

氯代苯类化合物在飞灰表面的热分解

1.
中国科学院大连化学物理研究所, 大连, 116023;
2.
中国科学院研究生院, 北京, 100049
基金项目:
国家重点基础研究计划(2009CB421606)

中国科学院知识创新工程领域前沿项目(K2007C1)

国家科技支撑计划(2008BAC32B03)资助项目

THERMAL DECOMPOSTION OF CHLORINATED BENENES ON THE SURFACE OF FLY ASH

1.
Dalian Institute of Chemical Physics, Dalian, 116023, China;
2.
Graduate University of Chinese Academy of Sciences, Beijing, 100049, China
Fund Project:

摘要: 密闭体系中,在生活垃圾焚烧飞灰的催化作用下,一氯苯到六氯苯表现出不同的热分解特性.这12种氯苯化合物分别经过300℃、30min加热处理,得到的脱氯/加氢反应产物的总量为初始氯苯化合物的50%—90%;而这些反应底物自身的含量为其原始含量的20%—90%.高氯代苯比低氯代苯更容易发生脱氯/加氢的反应.通过与热力学数据的比较,我们认为氯苯化合物脱氯/加氢反应是由热力学控制的.对于HCB而言,有两条主要的脱氯途径,其比例不相上下:1)HCB→五氯苯→1,2,3,5-四氯苯→1,3,5-三氯苯→1,3-二氯苯→1-氯苯;2)HCB→五氯苯→1,2,4,5-四氯苯→1,2,4-三氯苯→1,4-二氯苯→1-氯苯.
- 飞灰 /
- 氯苯 /
- 热分解
Abstract: Mono-to hexa-chlorinated benzenes exhibited different properties of thermal decomposition under the catalysis of municipal waste incineration fly ash in a closed system.The total content of chlorinated benzenes was in the range of 50%—90% after thermal treatment of one kind of chlorinated benzenes,while 20%—90% of them remained unchanged in the system after thermal treatment.Higher chlorinated benzenes were easier to become dechlorinated and hydrogenated than lower chlorinated ones.The reaction of dechlorination/hydrogenation was thermodynamically controlled.There were two proposed dechlorination pathways of HCB:1)HCB→pentachlorobenzene→1,2,3,5-tetrachlorobenzene→1,3,5-trichlorobenzene→1,3-dichlorobenzene→chlorobenzene;2)HCB→pentachlorobenzene→1,2,4,5-tetrachlorobenzene→1,2,4-trichlorobenzene→1,4-dichlorobenzene→chlorobenzene.
- fly ash /
- chlorinated benzenes /
- thermal decomposition

[1]

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高洪才, 倪余文, 张海军, 陈吉平. 氯代苯类化合物在飞灰表面的热分解[J]. 环境化学, 2010, 29(3): 434-438.

引用本文:

高洪才, 倪余文, 张海军, 陈吉平. 氯代苯类化合物在飞灰表面的热分解[J]. 环境化学, 2010, 29(3): 434-438.

GAO Hong-cai, NI Yu-wen, ZHANG Hai-jun, CHEN Ji-ping. THERMAL DECOMPOSTION OF CHLORINATED BENENES ON THE SURFACE OF FLY ASH[J]. Environmental Chemistry, 2010, 29(3): 434-438.

Citation:

GAO Hong-cai, NI Yu-wen, ZHANG Hai-jun, CHEN Ji-ping. THERMAL DECOMPOSTION OF CHLORINATED BENENES ON THE SURFACE OF FLY ASH[J]. Environmental Chemistry, 2010, 29(3): 434-438.

氯代苯类化合物在飞灰表面的热分解

1. 中国科学院大连化学物理研究所, 大连, 116023;
2. 中国科学院研究生院, 北京, 100049

收稿日期: 2009-05-13

基金项目:

国家重点基础研究计划(2009CB421606)

中国科学院知识创新工程领域前沿项目(K2007C1)

国家科技支撑计划(2008BAC32B03)资助项目

关键词:

飞灰 /
氯苯 /
热分解

摘要: 密闭体系中,在生活垃圾焚烧飞灰的催化作用下,一氯苯到六氯苯表现出不同的热分解特性.这12种氯苯化合物分别经过300℃、30min加热处理,得到的脱氯/加氢反应产物的总量为初始氯苯化合物的50%—90%;而这些反应底物自身的含量为其原始含量的20%—90%.高氯代苯比低氯代苯更容易发生脱氯/加氢的反应.通过与热力学数据的比较,我们认为氯苯化合物脱氯/加氢反应是由热力学控制的.对于HCB而言,有两条主要的脱氯途径,其比例不相上下:1)HCB→五氯苯→1,2,3,5-四氯苯→1,3,5-三氯苯→1,3-二氯苯→1-氯苯;2)HCB→五氯苯→1,2,4,5-四氯苯→1,2,4-三氯苯→1,4-二氯苯→1-氯苯.

English Abstract

THERMAL DECOMPOSTION OF CHLORINATED BENENES ON THE SURFACE OF FLY ASH

1. Dalian Institute of Chemical Physics, Dalian, 116023, China;
2. Graduate University of Chinese Academy of Sciences, Beijing, 100049, China

Received Date: 2009-05-13

Fund Project:

Keywords:

Abstract: Mono-to hexa-chlorinated benzenes exhibited different properties of thermal decomposition under the catalysis of municipal waste incineration fly ash in a closed system.The total content of chlorinated benzenes was in the range of 50%—90% after thermal treatment of one kind of chlorinated benzenes,while 20%—90% of them remained unchanged in the system after thermal treatment.Higher chlorinated benzenes were easier to become dechlorinated and hydrogenated than lower chlorinated ones.The reaction of dechlorination/hydrogenation was thermodynamically controlled.There were two proposed dechlorination pathways of HCB:1)HCB→pentachlorobenzene→1,2,3,5-tetrachlorobenzene→1,3,5-trichlorobenzene→1,3-dichlorobenzene→chlorobenzene;2)HCB→pentachlorobenzene→1,2,4,5-tetrachlorobenzene→1,2,4-trichlorobenzene→1,4-dichlorobenzene→chlorobenzene.

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氯代苯类化合物在飞灰表面的热分解

THERMAL DECOMPOSTION OF CHLORINATED BENENES ON THE SURFACE OF FLY ASH

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氯代苯类化合物在飞灰表面的热分解

English Abstract

THERMAL DECOMPOSTION OF CHLORINATED BENENES ON THE SURFACE OF FLY ASH

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