Bioresources and Bioprocessing ( IF 4.3 ) Pub Date : 2023-08-30 , DOI: 10.1186/s40643-023-00674-z Ziyu Liu 1 , Xiaoyi Yang 2
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The challenge of drop-in jet biofuel should couple the reduction of GHGs emission in whole life cycle with economic competitiveness and achieving performance without reducing performance of engine and aircraft. Co-processing was recognized a promising solution due to availability of existing refining infrastructure and facilities. Based on the LCA approach, the quantitative LCA assessment model (AF-3E) has been established for discovering potential GHGs reduction by co-processing. Typical representatives of oily feedstock, including used cooking oil, soybean, rapeseed, peanut, corn oil, Xanthoceras sorbifolia, jatropha and algae, were compared co-processing with HEFA-SPK blend on GHGs and energy consumption in the whole life. Computational framework is integrated into 3 sub-models and 4 modules, which include feedstocks model, fuel model, flight model and electricity module, hydrogen module, methanol module, hexane module. In flight model, the emissions were investigated at LTO condition and cruise condition and transfer to six types of typical aircraft widely used by similarity criterion. Co-processing achieve less energy consumption and GHGs emission than HEFA-SPK blend, which is attributed to less energy consumption in fuel stage. Used cooking oil conducts 8.17% GHGs reduction in 5% bio-feedstock co-processing and 6.39% in 5% HEFA-SPK jet biofuel blend compared with petroleum-based jet fuel. By sensitivity analysis, the vital factors on GHGs have been extracted in whole life cycle. The purpose of this paper is to discover the advantages and vital factors of co-processing. The results would enhance the interests in both LCA and co-processing for sustainable aviation biofuel.
Graphical Abstract
中文翻译：
共处理航空生物燃料在生命周期中潜在的温室气体减排
嵌入式喷气式生物燃料面临的挑战应该是将整个生命周期中温室气体排放的减少与经济竞争力结合起来，并在不降低发动机和飞机性能的情况下实现性能。由于现有炼油基础设施和设施的可用性，协同处理被认为是一种有前途的解决方案。基于LCA方法，建立了定量LCA评估模型（AF-3E），用于发现协同处置潜在的温室气体减排潜力。油性原料的典型代表，包括废食用油、大豆、油菜籽、花生、玉米油、文冠果、麻风树和藻类，比较了与HEFA-SPK共混物共处理在整个生命周期中的温室气体和能源消耗。计算框架分为3个子模型和4个模块，包括原料模型、燃料模型、飞行模型和电力模块、氢气模块、甲醇模块、己烷模块。在飞行模型中，研究了LTO工况和巡航工况下的排放，并通过相似准则转移到广泛使用的六种典型飞机上。与HEFA-SPK共混物相比，共处置实现了更少的能源消耗和温室气体排放，这归因于燃料阶段的能源消耗更少。与石油基喷气燃料相比，使用过的食用油在 5% 生物原料协同处理中可减少 8.17% 的温室气体，在 5% HEFA-SPK 喷气生物燃料混合物中可减少 6.39% 的温室气体。通过敏感性分析，提取了温室气体全生命周期的重要影响因素。本文的目的是发现协同处理的优势和重要因素。研究结果将增强人们对可持续航空生物燃料的生命周期评估和协同处理的兴趣。
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