Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/5163
標題: 焚化過程中吸附劑對高溫廢氣中機物及重金屬吸附之研究
The study of the adsorption of organics and heavy metals in flue gas during incineration processes
作者: 余利智
Yu, Lih-Jyh
關鍵字: adsorbents;吸附劑;high temperature adsorption;heavy metals;fluidized incinerator;流體化床;高溫吸附;重金屬
出版社: 環境工程學系
摘要: 
焚化排放廢氣中含有粒狀物、酸性氣體及少量的有機污染物,這些污染物
若排放至大氣中,不但造成空氣污染,且對人體有嚴重危害性,尤其是高
分子環狀芳香族化合物及重金屬化合物。其中粒狀物質以占有巨觀體積的
凝集態存在,可用捕集、濾除的方式去除,如袋濾、靜電集塵等。粒狀物
以外之污染物,則是以分子狀態存在,難以濾除,大多使用冷凝、焚化、
觸媒氧化、吸收及吸附的方法加以控制,其中又以吸附為最佳及成熟的操
作方法。 許多學者提到活性碳是目前最常用的吸附劑,其具有非極性
的特性對有機物的吸附效果良好,常用於低溫(<30℃)下去除回收氣相中
的有機物,然而在高溫( >120℃)下吸附氣相中有機物的特性卻甚少被提
及,此外,煙道氣組成之複雜性使吸附劑對有機物及重金屬之吸附行為更
加複雜。目前許多先進國家,已嘗試使用活性碳床來控制焚化爐煙道氣的
排放,結果顯示其去除高分子有機物﹑酸性氣體及重金屬有不錯的效果。
本研究將利用含一﹑二次燃燒室的流體化床焚化爐,探討不同的操作條件
下,包括吸附劑的吸附溫度、吸附劑種類、進料組成中有無重金屬的存在
等,吸附劑對有機物及重金屬之吸附特性及有機物與重金屬在煙道氣中之
分佈情形。

ABSTRACTThe VOCs, PAHs, Dioxin and metallic components released
from incineration cause a threat to human health. These
pollutants, appearing as molecular state, could not be
effectively removed by baghouse and ESP through capture and
filtration mechanisms. The results of previous studies indicated
that activated carbon is conventionally used to remove organics
from gaseous phase at low temperature (less than 30℃). However,
the adsorption characteristics of organics from gaseous phase at
high temperature (larger than 120℃) are rarely mentioned.
Moreover, the complex compositions of flue gas cause the
adsorption characteristics of organics and heavy metals on
adsorbent more complicated. The main objective of this research
is to study the adsorption characteristics of organics and heavy
metals and their distribution in flue gas at various
incineration conditions. The evaluated parameters included
(1)the operating temperature, (2) the characteristics of
adsorbents, and (3) waste compositions and the presence of heavy
metals.Key words : adsorbents, high temperature adsorption,
heavy metals, fluidized incinerator.
URI: http://hdl.handle.net/11455/5163
Appears in Collections:環境工程學系所

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