Analysis of Gases Emitted from Particleboard Combustion

粒片板燃燒釋出氣體之分析

林翰謙(Han-Chien Lin) ； 黃金城(Jin-Cherng Huang) ； 藤元嘉安(Yoshiyasu Fujimoto) ； 村瀨安英(Yasuhide Murase)

《林產工業》 20卷2期 (2001/06) Pp. 165-173

https://doi.org/10.6561/FPI.2000.20(2).8

摘要

本研究使用四種常用膠合劑混合木材粒片抄製粒片板，試片置入45°加熱試驗裝置中燃燒並使用煙道氣體分析儀（Flue-gas analyzer）於排氣口以連續排出監測（Continuous Emission Monitoring, CEM）方式分析其CO，NO，SO_2，O_2及CO_2的排氣濃度及溫度，並與燃燒實木（鐵杉，紅柳桉，雲杉與日本柳杉等）之排氣作比較，藉以提供製造環保粒片板之參考。試驗結果顯示，排氣溫度急劇上升至約175℃，然後緩慢升溫至180～240℃，並成高原型曲線（Plateau curve），而粒片板燃燒之最後溫度略高於四種實木者約55℃。同時結果得知O_2濃度（VOL%）由最初的20.7%直線下降至約18%，而CO_2濃度（VOL%）則呈相反現象由最初的0.2%直線上升至約2.0%，兩者皆成高原曲線且有密切關係。CO之最高排出量，商用粒片板者約53.5ppm，實木者12－35ppm，自製粒片板者介於14－18ppm，而膠合劑分別為UF者15ppm，MUF者5ppm，PF者4.2ppm，MDl者70ppm，接著緩慢下降成高原曲線。全部試片燃燒後沒有SO_2排出。而NO之最高排氣濃度在商用粒片板者為59ppm，實木者介於2－5ppm，但使用UF及MUF膠之自製粒片板者最高排出量約為68－70ppm，依次為MDI者之35ppm，PF者之19ppm，之後下降成高原曲線。就膠合劑而言，NO最高排出量，UF者26ppm，MUF者34ppm，MDI者69ppm，但PF僅為1ppm，而至燃燒終了，其CO和NO的排出量超過最大值後成高原曲線。從上述資料得知，使用PF樹脂者，是本試驗製造粒片板最環保的的膠合劑。

關鍵字

粒片板 ； 膠合劑 ； 燃燒 ； 排氣濃度

並列摘要

Using a Flue-gas Analyzer from the exit of a 45° flammability testing cabinet as specified in the Continuous Emission Monitoring (CEM) technique, the emission gas concentrations during particleboard combustion were measured. The particleboards manufactured with 4 types of adhesives and wood particles were investigated. In order to compare the different gas emission with particleboard, 4 species of solid woods (Hemlock, Red Meranti, Spruce and Sugi) as the representative materials were used in this study. The emission gas temperature, oxygen and carbon dioxide concentration, and the emission contents (such as carbon monoxide, nitrogen monoxide and sulfur dioxide) were examined in order to obtain the basic data. The main purpose of this study is to provide a reference of the manufacture environmentally friendly particleboard. Results indicated that the emission gas temperature increased rapidly up to about 175℃, then slowed down in the temperature range of 180 to 240℃, shown as a Plateau curve. The concentration of O_2decreased from 20.7% to about 18% linearly, and on the contrary the concentration of CO_2 increased from 0.2% to about 2.0%. Both O_2 and CO_2approached the shape of a Plateau curve and had a close relationship during combustion. The highest emission quantity of CO for commercial particleboard was about 53.3ppm. 4 types of solid woods were about 12 to 35ppm. Handmade particleboards were about 14 to 18ppm. The adhesives of UP, MUF, P.F and MDl were about 15, 5, 4.2 and 70ppm, respectively and slowly decreased until the end of the combustion time. Sulfur dioxide was not found in the emission during combustion for all the specimens. The maximum NO emission for commercial particleboard was about 59ppm and about 2 to 5ppm for the solid woods used in this study. The particleboards made of UF and MUF were about 68 to 70ppm, 35ppm for MDl and 19ppm for PF. The maximum NO emission for the adhesives of UF, MUF and MDl were about.26, 34 and 69ppm, respectively, but only 1ppm for PF. After exceeding the maximum value, CO and NO emission became the Plateau curve until the end of the combustion time. The results suggested that phenol formaldehyde resin is the most environmentally friendly adhesive for manufacturing particleboard.

並列關鍵字

Particleboard ； Adhesives ； Combustion ； Emission gas concentration