Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
Waste Manag. 2021 Apr 15;125:77-86. doi: 10.1016/j.wasman.2021.02.025. Epub 2021 Mar 5.
Pyrolysis of furfural residue (FR) was performed at 450-850 °C by employing a fluidized bed pyrolyzer (FBP). Addition of Kaolin and Ca-bentonite to FR considerably increased the condensate yields. The highest condensate yield (24.96 wt%) was obtained at 650 °C when Ca-bentonite was added. Fourier transform infra-red (FTIR) spectrum of pyrolysis oil (PO) indicated that catalysts promoted generation of alkene, amine, sulfate, sulfonyl chloride and oxime during pyrolysis. Gas chromatography mass spectrometry (GC-MS) demonstrated that catalysts significantly increased the content of furfural and phenol in PO and the maximum phenol content (15.36%) was achieved in PO650-3 for CaO. The quite low relative proportion (RP) of ammonia nitrogen in liquid indicated that the dominant form of nitrogen in liquid was not ammonia nitrogen. CaO had the ability to reduce HS release, indicating significant sulfur retention capacity. The maximum RP (99.29%) of chlorine in bio-char (BC) was observed with the addition of CaO, showing its strong chlorine retention capacity.
采用流化床热解器在 450-850°C 下对糠醛渣（FR）进行热解。添加高岭土和钙基膨润土可显著提高冷凝物产率。当添加钙基膨润土时，在 650°C 时获得了最高的冷凝物产率（24.96wt%）。热解油（PO）的傅里叶变换红外（FTIR）谱表明，催化剂在热解过程中促进了烯烃、胺、硫酸盐、磺酰氯和肟的生成。气相色谱质谱联用（GC-MS）表明，催化剂显著提高了 PO 中糠醛和苯酚的含量，在添加 CaO 的 PO650-3 中，苯酚的含量达到最高（15.36%）。液体中氨氮的相对比例（RP）相当低，表明液体中氮的主要形式不是氨氮。CaO 具有减少 HS 释放的能力，表明其具有很强的硫保留能力。添加 CaO 时，生物炭（BC）中氯的最大 RP（99.29%）表明其具有很强的氯保留能力。
