Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan; Institute of Aquatic Science and Technology, College of Hydrosphere Science, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
Institute of Aquatic Science and Technology, College of Hydrosphere Science, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
Bioresour Technol. 2023 Jul;379:129047. doi: 10.1016/j.biortech.2023.129047. Epub 2023 Apr 12.
The content of polycyclic aromatic hydrocarbons in pineapple leaf biochar was examined as a function of pyrolysis atmosphere (CO or N), pyrolysis temperature (300-900 °C), and heteroatom (N, B, O, P, NP, or NS) doping. Without doping, the polycyclic aromatic hydrocarbon production was maximal (1332 ± 27 ng/g) in CO at 300 °C and minimal (157 ± 2 ng/g) in N at 700 °C. The main components naphthalene and acenaphthylene accounted for about 91% of the total polycyclic aromatic hydrocarbon in the biochar prepared under CO at 300 °C. Under the maximal polycyclic aromatic hydrocarbon production conditions (CO, 300 °C), doping decreased the total hydrocarbon content by 49% (N), 61% (B), 73% (O), 92% (P), 93% (NB), and 96% (NS). The results shed new light on the management of polycyclic aromatic hydrocarbons in BC production by controlling the pyrolysis atmosphere and temperature in addition to heteroatom doping. Results significantly contributed to the development of circular bioeconomy.
菠萝叶生物炭中多环芳烃的含量随热解气氛（CO 或 N）、热解温度（300-900°C）和杂原子（N、B、O、P、NP 或 NS）掺杂的变化而变化。未掺杂时，CO 在 300°C 下产生的多环芳烃最多（1332±27ng/g），N 在 700°C 下产生的多环芳烃最少（157±2ng/g）。在 CO 制备的生物炭中，萘和苊烯这两种主要成分约占总多环芳烃的 91%。在多环芳烃产生的最大条件（CO，300°C）下，掺杂使总碳氢化合物含量降低了 49%（N）、61%（B）、73%（O）、92%（P）、93%（NB）和 96%（NS）。这些结果为通过控制热解气氛和温度以及杂原子掺杂来管理 BC 生产中的多环芳烃提供了新的思路。研究结果对发展循环生物经济有重要意义。
