Characteristics of products and PCDD/DF emissions from a pyrolysis process of urethane/styrofoam waste from electrical home appliances |
| |
Authors: | Sung-Jin Cho Ki-Heon Kim Hae-Young Jung Oh-Jun Kwon Yong-Chil Seo |
| |
Institution: | 1. Department of Environmental Engineering, YIEST, Yonsei University, Kangwon, Wonju, 220-710, Republic of Korea 2. National Institute of Environmental Research, Environmental Research Complex, Incheon, Republic of Korea
|
| |
Abstract: | A plastic fraction consisting mainly of polyurethane/styrofoam waste is generated after separating valuable spare parts and
metals from used electrical home appliances. In Korea, such waste is currently incinerated in cement kilns or is landfilled.
However, owing to its high volatile matter content, conversion into gaseous or liquid pyrolysis products is a preferable alternative.
A pyrolysis process of polyurethane and styrofoam waste from electrical home appliances was evaluated by characterizing the
products generated at 500°–800°C. The para meters determined were the yields of gas, oil, and char; the characteristics of
the remaining char; and the con centration of polychlorinated dibenzo-p-dioxins/polychlorinated dibenzo-furans in the product gas. As expected, the char yield decreased at higher temperatures,
whereas gas and oil yields showed increasing tendency. The oil products could be used as storable fuels with a calorific value
of 6000–8000 kcal/kg. Fine pores were observed in the char. The adsorption and decolorizing ability of the char were almost
the same as those of activated carbon, so that pyrolysis char has potential for use as a sorbent. Further feasibility studies
will be needed before utilizing pyrolysis technology to recover either fuels or usable products from polyurethane/styrofoam
waste. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|