School of Environmental Engineering, University of Seoul, Seoul, 02504, Republic of Korea.
School of Chemical and Biomolecular Engineering, Pusan National University, Busan, 46241, Republic of Korea.
J Hazard Mater. 2020 Feb 15;384:121231. doi: 10.1016/j.jhazmat.2019.121231. Epub 2019 Sep 14.
The fast pyrolysis of waste lignin derived from biobutanol production process was performed to determine the optimal pyrolysis conditions and pyrolysis product properties. Four types of pyrolysis reactors, e.g.: micro-scale pyrolyzer-gas chromatography/mass spectrometry, lab and bench scale fixed bed (FB) reactors, and bench scale rotary kiln (RK) reactor, were employed to compare the pyrolysis reaction conditions and product properties obtained from different reactors. The yields of char, oil, and gas obtained from lab scale and bench scale reactor were almost similar compared to FB reactor. RK reactor produced desirable bio-oil with much reduced yield of poly aromatic hydrocarbons (cancer precursor) due to its higher cracking reaction efficiency. In addition, char agglomeration and foaming of lignin pyrolysis were greatly restricted by using RK reactor compared to the FB reactor.
采用快速热解技术对生物丁醇生产过程中产生的废木质素进行处理，以确定最佳热解条件和热解产物特性。使用了四种类型的热解反应器，包括：微量热解仪-气相色谱/质谱联用仪、实验室和台架固定床（FB）反应器以及台架回转窑（RK）反应器，以比较不同反应器得到的热解反应条件和产物特性。与 FB 反应器相比，实验室规模和台架规模的反应器得到的炭、油和气的产率几乎相似。由于 RK 反应器具有更高的裂化反应效率，因此可得到产率较低的多环芳烃（癌症前体）的理想生物油。此外，与 FB 反应器相比，使用 RK 反应器可以大大限制木质素热解过程中的炭团聚和发泡现象。
