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首页> 外文期刊>RSC Advances >Catalytic deoxygenation of triglycerides to green diesel over modified CaO-based catalysts
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Catalytic deoxygenation of triglycerides to green diesel over modified CaO-based catalysts

机译：改性CaO基催化剂对甘油三酸酯催化脱氧为绿色柴油

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摘要

Renewable fuel is a promising alternative as a petroleum replacement in view of the current worldwide demand for petroleum fuel, which is catching up with the world's petroleum supply. In the present study, gasoline and diesel-range hydrocarbons were derived from triolein via a deoxygenation process. The deoxygenation of triolein was performed using waste clamshell-derived CaO supported by active promoters (binary metal oxide systems: Ni–CaO, Zn–CaO, Fe–CaO and Co–CaO). Based on the catalytic activity study, the highest degree of deoxygenation via deCOx reaction (decarboxylation/decarbonylation) was achieved in the presence of the strong acid–base bifunctional Co–CaO catalyst. A Box-Behnken optimization study was performed to study the effect of 3 operating parameters: catalyst loading (3–7 wt%), reaction temperature (300–360 °C) and reaction time (60–120 min). The present study has indicated that the maximum hydrocarbon yield (56%) was achieved under optimized deoxygenation conditions of 5 wt% of catalyst, 340 °C within 105 min, and the interaction effect between reaction temperature and time rendered a significant effect towards the deoxygenation activity.
机译：鉴于目前全球对石油燃料的需求正赶上世界石油供应，因此可再生燃料是一种有前途的替代石油替代品。在本研究中，汽油和柴油范围的碳氢化合物是通过脱氧过程从三油精中提取的。三油精的脱氧反应是使用废蛤壳衍生的CaO进行的，催化剂由活性促进剂（二元金属氧化物体系：Ni–CaO，Zn–CaO，Fe–CaO和Co–CaO）支持。根据催化活性研究，在强酸碱双功能Co-CaO催化剂存在下，通过deCOx反应（脱羧/脱羰基）实现了最高脱氧率。进行了Box-Behnken优化研究，以研究3个操作参数的影响：催化剂负载量（3–7 wt％），反应温度（300–360°C）和反应时间（60–120分钟）。本研究表明，在最佳脱氧条件下，催化剂的最佳脱氧条件为5 wt％的催化剂，在105分钟内在340°C的条件下，105分钟内可达到最大烃收率（56％），反应温度和时间之间的相互作用对脱氧具有显着影响。活动。

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