金属催化剂对油漆板材催化热解产物的影响

研究使用CaCO3、CaO、Fe2O3、还原铁粉、Na2CO35种金属催化剂对油漆板材进行热解,收集固、液两相产物进行产率计算和检测分析.结果表明,5种催化剂都有效提高了热解固相产物的产率,CaCO3、Na2CO3以及还原铁粉可以增加液相产品产率.钛元素在所有催化热解固相产物含量均较高,可能造成潜在的环境污染.热解液相...

Effects of metal catalysts on pyrolysis products of painted plywood

Five catalysts, including CaCO₃, CaO, Fe₂O₃, iron powder and Na₂CO₃ were used as catalytic agents in the catalytic pyrolysis of painted wood. Solid and liquid products of pyrolysis were collected separately for yield calculation and products characterization. The results showed that all five catalysts effectively improved the yield of solid products. In addition, CaCO₃, Na₂CO₃ and iron powder also increased the yield of liquid products. The content of titanium in all solid products was in a high level, which may cause potential environmental pollution. The liquid products of pyrolysis mainly included esters, ketones, alcohols, phenols and acids, and a small amount of nitrogen-containing substances. The introduction of CaCO₃, CaO, Fe₂O₃ and Na₂CO₃ could reduce the content of acids in the liquid products. In summary, CaCO₃ was more efficient at improving the quality of both solid and liquid pyrolysis products.