Chen Chunxiang, Fan Dianzhao, Ling Hongjian, Huang Xiaodong, Yang Gaixiu, Cai Dayong, Zhao Jian, Bi Yingxin
College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, China; Guangxi Key Laboratory of Petrochemical Resources Processing and Process Intensification Technology, Nanning City 530004, China; Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization, Guangzhou City 510640, China.
College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, China.
Bioresour Technol. 2022 Nov;363:127881. doi: 10.1016/j.biortech.2022.127881. Epub 2022 Sep 5.
Activated carbon (AC) has attracted much attention owing to its low cost and abundant sources. In this paper, three monometallic supported catalysts were prepared using AC as support (Ce/AC, Fe/AC, Ni/AC), and the effects of three catalysts on the microwave co-pyrolysis of Chlorella vulgaris (C. vulgaris) with high density polyethylene (HDPE) were studied. The results showed that the co-pyrolysis characteristics of C. vulgaris/HDPE = 1:1 (C1HP1) were significantly improved by three catalysts at high additions (>20 %). Among them, the C1HP1 group with 50 % Fe/AC addition had the shortest co-pyrolysis reaction time (2901 s). Besides, Ce/AC and Fe/AC have a promoting effect on bio-oil yields, while Ni/AC has an inhibiting effect. The maximum bio-oil yield (25.6 %) was obtained under 40 % addition of Fe/AC. Moreover, Ce/AC obtained the highest hydrocarbons content (66.68 %), while Fe/AC obtained the highest aromatic hydrocarbons content (36.64 %). Additionally, Ce/AC had the highest deoxygenation efficiency (47.33 %) and denitrification efficiency (42.28 %).
活性炭（AC）因其成本低、来源丰富而备受关注。本文以AC为载体制备了三种单金属负载型催化剂（Ce/AC、Fe/AC、Ni/AC），并研究了这三种催化剂对小球藻（C. vulgaris）与高密度聚乙烯（HDPE）微波共热解的影响。结果表明，在高添加量（>20%）时，三种催化剂显著改善了小球藻/HDPE = 1:1（C1HP1）的共热解特性。其中，添加50% Fe/AC的C1HP1组共热解反应时间最短（2901 s）。此外，Ce/AC和Fe/AC对生物油产率有促进作用，而Ni/AC有抑制作用。在添加40% Fe/AC时获得了最高生物油产率（25.6%）。此外，Ce/AC的烃类含量最高（66.68%），而Fe/AC的芳烃含量最高（36.64%）。另外，Ce/AC的脱氧效率最高（47.33%），脱氮效率最高（42.28%）。
