Evaluation of the Properties and Compositions of Blended Bio-jet Fuels Derived from Fast Pyrolysis Bio-oil made from Wood According to Aging Test

IF 2.9 4区 工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY
Hwayeon Jeon, Jumin Youn, Jo Yong Park, Eui-Soon Yim, Jeong-Myeong Ha, Young-Kwon Park, Jae Woo Lee, Jae-Kon Kim
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Abstract

The aviation industry has set ambitious goals for reducing carbon emissions, with the International Civil Aviation Organization targeting net-zero carbon emissions by 2050. Bio-jet fuel is expected to play a crucial role in achieving this target, and the demand for bio-jet fuel is projected to rapidly increase. Bio-oil from fast pyrolysis of lignin, such as waste wood, is considered a promising alternative for production of bio-jet fuel through processes such as hydrodeoxygenation. In this study, the physical properties and compositions of bio-jet fuel produced from wood-derived pyrolysis bio-oil blended with petroleum-based jet fuel as well as their changes during 16 weeks storage were investigated. Consistently, 0%, 10%, 50%, and 100% blended bio-jet fuels were prepared. After 16 weeks of aging, the total acid number of the all-blended bio-jet fuel showed a sharp increase from 12 weeks, reaching over 0.1 mg KOH/g. Additionally, kinematic viscosity showed a steady increase over 16 weeks whereas oxidative stability decreased by approximately 20% at 16 weeks for the 100% bio-jet fuel alone. The final boiling point increased by up to 20% in higher blends of bio-jet fuel and the average molecular weight increased. Bio-jet fuel has a high olefin content, which can further increase during storage, leading to a decrease in the combustion characteristics. This study suggests that using up to 10% the bio-jet fuel in aircraft is safe considering storage stability, but further research is required to confirm this finding.

根据老化试验评估从木材快速热解生物油中提取的混合生物喷气燃料的性能和成分
航空业为减少碳排放制定了雄心勃勃的目标,国际民用航空组织的目标是到 2050 年实现碳净零排放。生物喷气燃料有望在实现这一目标方面发挥关键作用,而且预计对生物喷气燃料的需求将迅速增加。从废木材等木质素的快速热解中提取的生物油被认为是通过加氢脱氧等工艺生产生物喷气燃料的理想替代品。本研究调查了木材热解生物油与石油喷气燃料混合生产的生物喷气燃料的物理性质和成分,以及它们在 16 周储存期间的变化。制备出的混合生物喷气燃料的浓度分别为 0%、10%、50% 和 100%。经过 16 周的老化后,所有混合生物喷气燃料的总酸值比 12 周时急剧增加,超过了 0.1 毫克 KOH/克。此外,运动粘度在 16 周内稳步上升,而 100%生物喷气燃料的氧化稳定性在 16 周时下降了约 20%。生物喷气燃料混合度越高,最终沸点最高可提高 20%,平均分子量也会增加。生物喷气燃料的烯烃含量较高,在储存过程中会进一步增加,导致燃烧特性降低。这项研究表明,考虑到储存稳定性,在飞机中使用不超过 10%的生物喷气燃料是安全的,但还需要进一步的研究来证实这一发现。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Korean Journal of Chemical Engineering
Korean Journal of Chemical Engineering 工程技术-工程:化工
CiteScore
4.60
自引率
11.10%
发文量
310
审稿时长
4.7 months
期刊介绍: The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.
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