Abstract As the most abundant municipal solid waste, corrugated cardboard (CCB) is a suitable resource for thermochemical conversion into various solid and liquid products. CCB samples were pyrolyzed at three temperatures (350, 400, and 450 °C) and their pyrolysis products (bio-oil and biochar) were characterized and analyzed. Thermogravimetric analysis (TGA) was utilized to study the thermal degradation behavior of CCB. CCB and biochar samples were subjected to proximate, ultimate, lipid and carbohydrates analyses, and Py–GCMS to characterize their chemical components. The highest biochar yield was 75% at 350 °C, and the highest bio-oil yield was 47% at 450 °C. The biochar physical and chemical properties were also assessed using calorific values, specific surface area, Fourier-transform infrared (FTIR) and Raman spectroscopies, and x-ray diffraction (XRD). Biochar was found to have low ash and nitrogen contents. The bio-oil was characterized by the combination of GCMS, high-performance liquid chromatography (HPLC), and electrospray ionization mass spectrometry (ESI–MS). The molar mass distribution and an estimate of monomer/oligomer ratio were determined from ESI-MS data. The bio-oil contained a complex mixture of pyrans, furans, phenols, and cyclopentenes. Levoglucoson was abundantly found in the bio-oil, suggesting the suitability of cardboard pyrolysis products for further processing into fuels.

中文翻译：

---

废瓦楞纸板热解生物油和生物炭的表征

摘要 瓦楞纸板（CCB）作为最丰富的城市固体废物，是一种适合热化学转化为各种固体和液体产品的资源。CCB 样品在三个温度（350、400 和 450 °C）下热解，并对它们的热解产物（生物油和生物炭）进行表征和分析。利用热重分析 (TGA) 来研究 CCB 的热降解行为。CCB 和 biochar 样品经过近似、最终、脂质和碳水化合物分析，以及 Py-GCMS 来表征它们的化学成分。350℃时生物炭产率最高为75%，450℃时生物油产率最高为47%。还使用热值、比表面积、傅里叶变换红外 (FTIR) 和拉曼光谱评估了生物炭的物理和化学性质，和 X 射线衍射 (XRD)。发现生物炭的灰分和氮含量低。生物油通过 GCMS、高效液相色谱 (HPLC) 和电喷雾电离质谱 (ESI-MS) 的组合进行表征。摩尔质量分布和单体/低聚物比的估计值由 ESI-MS 数据确定。生物油含有吡喃、呋喃、苯酚和环戊烯的复杂混合物。在生物油中发现了大量左旋葡萄糖，这表明纸板热解产品适用于进一步加工成燃料。摩尔质量分布和单体/低聚物比的估计值由 ESI-MS 数据确定。生物油含有吡喃、呋喃、苯酚和环戊烯的复杂混合物。在生物油中发现了大量左旋葡萄糖，这表明纸板热解产品适用于进一步加工成燃料。摩尔质量分布和单体/低聚物比的估计值由 ESI-MS 数据确定。生物油含有吡喃、呋喃、苯酚和环戊烯的复杂混合物。在生物油中发现了大量左旋葡萄糖，这表明纸板热解产品适用于进一步加工成燃料。