Break-even price and carbon emissions of carinata-based sustainable aviation fuel production in the Southeastern United States
Break-even price and carbon emissions of carinata-based sustainable aviation fuel production in the Southeastern United States
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DOI：
10.1111/gcbb.12888
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发表时间：
2021-09-03
影响因子：
5.6
通讯作者：
Dwivedi, Puneet
中科院分区：
文献类型：
--
作者：
Alam, Asiful;Masum, Md Farhad Hossain;Dwivedi, Puneet
基于生物质的可持续航空燃料（SAF）的生产正在受到越来越多的关注，以减少航空业的碳足迹。我们进行了技术经济分析，以估算来自美国东南部的芸苔（Brassica carinata）的 SAF 的盈亏平衡价格和生命周期碳排放量。 Carinata 具有作为选定地区 SAF 生产原料的潜力，因为其产量较高、化肥使用量低、副产品生成（动物饲料、丙烷和石脑油）以及与当前农业实践的兼容性。系统边界从农场开始，到 SAF 交付到机场时结束。如果没有联产品信用或可再生识别号 (RIN) 信用等其他补贴，基于 carinata 的 SAF 比传统航空燃料（0.50 L-1 美元）更贵（0.85 美元 L-1 至 1.28 L-1 美元）。仅考虑联产品信用，盈亏平衡价格范围为 0.34 美元 L-1 至 0.89 美元 L-1。结合联产品和 RIN 积分，L-1 的价格范围为 -$0.12 至 -$0.66。 Carinata基SAF的总碳排放量为918.67 g CO(2)e L-1。与传统航空燃料（2618 g CO(2)e L-1）相比，这一估计可相对减少 65% 的碳排放。敏感性分析表明，相对碳减排量有 95% 的可能性在 61% 到 68% 之间。我们的研究表明，基于卡里纳塔的航空燃料可以显着减少航空业的碳排放。然而，当前的政策支持机制应继续支持美国东南部的制造和分销。
The production of biomass-based sustainable aviation fuel (SAF) is gaining traction to reduce the carbon footprint of the aviation sector. We performed a techno-economic analysis to estimate the break-even price and life cycle carbon emissions of the SAF derived from carinata (Brassica carinata) in the Southeastern United States. Carinata has the potential as a feedstock for SAF production in the selected region due to higher yield, low fertilizer use, co-product generation (animal feed, propane, and naphtha), and compatibility with current farming practices. The system boundary started at the farm and ended when the SAF is delivered to an airport. Without co-product credit or other subsidies such as Renewable Identification Number (RIN) credit, carinata-based SAF was more expensive ($0.85 L-1 to $1.28 L-1) than conventional aviation fuel ($0.50 L-1). With co-product credit only, the break-even price ranged from $0.34 L-1 to $0.89 L-1. With both co-product and RIN credits, the price ranged from -$0.12 to -$0.66 L-1. The total carbon emission was 918.67 g CO(2)e L-1 of carinata-based SAF. This estimate provides 65% relative carbon savings compared with conventional aviation fuel (2618 g CO(2)e L-1). Sensitivity analysis suggested a 95% probability that relative carbon savings can range from 61% to 68%. Our study indicates that carinata-based aviation fuel could significantly reduce carbon emissions of the aviation sector. However, current policy support mechanisms should be continued to support manufacturing and distribution in the Southeastern United States.