Upgrading biocrude oil into sustainable aviation fuel using zeolite-supported iron-molybdenum carbide nanocatalysts

IF 12.5 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Advances Pub Date : 2025-06-27

Siying Yu, Haozhen He, Sabrina Summers, Zhibin Yang, Buchun Si, Runnan Gao, Anran Song, Joshua Heyne, Yuanhui Zhang, Hong Yang

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Abstract

Food waste is an underdeveloped source for production of sustainable aviation fuel (SAF). Now, there is no certified conversion process of food waste for SAF by American Society for Testing and Materials (ASTM). We report the use of zeolite-supported molybdenum carbide nanocatalysts in upgrading biocrudes, produced from food wastes through HTL, into SAF precursors. Our data show a complete removal of oxygen from the biocrude through hydrodeoxygenation and a higher heating value of 46.5 MJ/kg, which is comparable to that of Jet A (46.1 MJ/kg). The prescreening tests (tier alpha and beta) show the average carbon number of the distillation cut (150° to 230°C) of upgraded fuel is 10.6, close to the value of 11.4 for average conventional jet fuel, and the specifications of properties including surface tension, viscosity, heating value, flash point, and freezing point were found to meet the standards of SAF. The metal carbide nanocatalysts were reusable in upgrading tests, and the activity of deoxygenation was retained.

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利用沸石负载的铁钼碳化合金纳米催化剂将生物原油升级为可持续航空燃料

食物垃圾是生产可持续航空燃料（SAF）的不发达来源。目前，美国材料与试验协会（ASTM）还没有认证的食品垃圾SAF转化过程。我们报道了使用沸石负载的碳化钼纳米催化剂将食物垃圾通过HTL生产的生物原油转化为SAF前体。我们的数据显示，通过加氢脱氧可以完全去除生物原油中的氧气，并且热值更高，为46.5 MJ/kg，与Jet a （46.1 MJ/kg）相当。预筛选试验（alpha和beta两级）表明，升级后的燃料蒸馏馏分（150°~ 230°C）平均碳数为10.6，接近常规喷气燃料的平均碳数11.4，表面张力、粘度、热值、闪点和凝固点等性能指标均符合SAF标准。在升级试验中，金属碳化物纳米催化剂可重复使用，并且保留了脱氧活性。

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来源期刊

Science Advances 综合性期刊-综合性期刊

CiteScore

21.40

自引率

1.50%

发文量

1937

审稿时长

29 weeks

期刊介绍： Science Advances, an open-access journal by AAAS, publishes impactful research in diverse scientific areas. It aims for fair, fast, and expert peer review, providing freely accessible research to readers. Led by distinguished scientists, the journal supports AAAS's mission by extending Science magazine's capacity to identify and promote significant advances. Evolving digital publishing technologies play a crucial role in advancing AAAS's global mission for science communication and benefitting humankind.