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Renewable bio-phenols from in situ and ex situ catalytic pyrolysis of Douglas fir pellet over biobased activated carbons†
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2018-02-13 00:00:00 , DOI: 10.1039/c7se00607a Zixu Yang 1, 2, 3, 4, 5 , Hanwu Lei 4, 5, 6, 7 , Kezhen Qian 4, 5, 6, 7 , Yayun Zhang 4, 5, 6, 7 , Elmar Villota 4, 5, 6, 7
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2018-02-13 00:00:00 , DOI: 10.1039/c7se00607a Zixu Yang 1, 2, 3, 4, 5 , Hanwu Lei 4, 5, 6, 7 , Kezhen Qian 4, 5, 6, 7 , Yayun Zhang 4, 5, 6, 7 , Elmar Villota 4, 5, 6, 7
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In situ and ex situ catalytic upgrading of pyrolysis vapors from Douglas fir pellets in the presence of activated carbon (AC) prepared by chemical activation was studied in a microwave pyrolyzer. The in situ catalytic upgrading configuration gave lower bio-oil yields (10.25–25.5 wt%) than ex situ catalytic upgrading configuration (20.03–32 wt%). The bio-oil yield from the in situ upgrading process was significantly affected by both catalytic reaction temperature and catalyst to biomass ratio. However, the bio-oil yield from ex situ upgrading process was only significantly affected by catalyst to biomass ratio. Bio-oils compositional analysis indicated that the ex situ upgrading process generated higher phenols concentration (4.14–19.76 mg ml−1) than in situ upgrading (4.14–9.90 mg ml−1). However, the selectivity of phenols from in situ upgrading process reflected by the peak area percentages was higher than that from ex situ upgrading. The catalyst recycling tests showed that the prepared AC catalyst can be reused for three times in phenol-rich bio-oil production via catalytic microwave pyrolysis.
中文翻译：
道格拉斯冷杉球团在生物基活性炭上进行原位和非原位催化热解的 可再生生物酚†
在微波热解器中研究了在通过化学活化制备的活性炭（AC）存在下，来自道格拉斯冷杉球团的热解蒸气的原位和异位催化改性。该原位催化改配置给低生物油产率（10.25-25.5重量％）比易地催化改配置（20.03-32重量％）。原位提质过程中的生物油收率受到催化反应温度和催化剂与生物质比率的显着影响。但是，异地提质过程产生的生物油收率仅受催化剂与生物质比的显着影响。生物油成分分析表明非原位提纯过程产生的苯酚浓度（4.14–19.76 mg ml -1）比原位提纯（4.14–9.90 mg ml -1）更高。然而，酚类从选择性原位升级过程中由峰面积百分比反射比产生更高易地升级。催化剂的循环测试表明，所制备的AC催化剂可通过催化微波热解在富酚生物油生产中重复使用3次。
更新日期：2018-02-13
中文翻译：
道格拉斯冷杉球团在生物基活性炭上进行原位和非原位催化热解的 可再生生物酚†
在微波热解器中研究了在通过化学活化制备的活性炭（AC）存在下，来自道格拉斯冷杉球团的热解蒸气的原位和异位催化改性。该原位催化改配置给低生物油产率（10.25-25.5重量％）比易地催化改配置（20.03-32重量％）。原位提质过程中的生物油收率受到催化反应温度和催化剂与生物质比率的显着影响。但是，异地提质过程产生的生物油收率仅受催化剂与生物质比的显着影响。生物油成分分析表明非原位提纯过程产生的苯酚浓度（4.14–19.76 mg ml -1）比原位提纯（4.14–9.90 mg ml -1）更高。然而，酚类从选择性原位升级过程中由峰面积百分比反射比产生更高易地升级。催化剂的循环测试表明，所制备的AC催化剂可通过催化微波热解在富酚生物油生产中重复使用3次。
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