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Experimental studies on high-quality bio-oil production via pyrolysis of Azolla by the use of a three metallic/modified pyrochar catalyst
Bioresource Technology ( IF 11.4 ) Pub Date : 2019-07-13 , DOI: 10.1016/j.biortech.2019.121802
S.M. Pirbazari , Omid Norouzi , Komeil Kohansal , Ahmad Tavasoli

In this study, the potential of the pyrolysis method to overcome the negative effects of Azolla-filiculoides in infected areas was thoroughly investigated. Non-catalytic pyrolysis experiments were conducted at a temperature range of 400–700 °C. The highest possible bio-oil yield (35 wt%) was attained at 500 °C. To achieve the best chemical composition of bio-oil and higher amount of synthesis gas the catalytic pyrolysis were conducted in a dual-bed quartz reactor at the optimum temperature (500 °C). Although, all three catalysts (pyro-char, modified pyro-char (MPC), and Mg-Ni-Mo/MPC) showed almost an impressive performance in promotion of the common reactions, Mg-Ni-Mo/MPC catalyst have illustrated the stunning results by increasing the percentage of furan compounds from 5.25% to 33.07%, and decreasing the acid compounds from 25.56% to 9.09%. Using GC–MS and GC-FID liquid and gaseous products were fully analyzed. The carbon-based catalysts were also evaluated via FTIR, FESEM, EDX, and BET analyses.



中文翻译:

通过使用三种金属/改性焦炭催化剂热分解满江红生产高质量生物油的实验研究

在这项研究中,彻底研究了热解方法克服艾索拉丝状菌在感染区的负面影响的潜力。非催化热解实验是在400-700°C的温度范围内进行的。在500°C下获得了最高的生物油产率(35 wt%)。为了获得最佳的生物油化学成分和更多的合成气,在双层石英反应器中以最佳温度(500°C)进行催化热解。尽管所有三种催化剂(焦炭,改性焦炭(MPC)和Mg-Ni-Mo / MPC)在促进常见反应方面均表现出令人印象深刻的性能,但Mg-Ni-Mo / MPC催化剂已说明了通过将呋喃化合物的百分比从5.25%增加到33.07%,并将酸性化合物的比例从25.56%减少到9.09%,获得了惊人的结果。使用GC-MS和GC-FID对液态和气态产物进行了全面分析。碳基催化剂还通过FTIR,FESEM,EDX和BET分析进行了评估。

更新日期:2019-07-13
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