Characterization by laser diagnostics of the sooting propensity of biomass-derived fuels intended to be used as environmentally-friendly substitutes to fossil fuels

该项目旨在提高对不同生物质衍生燃料的烟雾行为的理解，以支持更清洁能源载体的发展。实际上，煤烟是燃烧过程中产生的主要污染物之一，也是人为气溶胶的主要来源之一。为了限制其生产，以满足实际和未来的法规，减少污染源仍然是发动机制造商特别考虑的一个关键选择。然而，为了提高用于设计燃烧装置的计算代码的预测特性，仍然需要对多环芳烃（PAHs）和煤烟形成的物理化学机制进行彻底的了解（特别是在生物燃料的情况下）。因此，本项目的目的是提供关于不同分子作为烟灰抑制剂的能力的有见地的发现，以确定中长期商业化环境友好型石油衍生燃料替代品所必需的燃料特性。为此，将实验室规模实验和发动机试验联系起来的本提案由3个主要目标组成，总结如下：

This program aims at improving the understanding of the sooting behavior of different biomass-derived fuels to support the development of cleaner energy carriers. Actually, soot is one of the major pollutants generated in combustion processes and one of the main contributors to anthropogenic aerosols. To limit its production with the view to meet actual and future regulations, source reduction remains a key option particularly considered by engine manufacturers. A thorough understanding of the physicochemical mechanisms involved in the formation of polycyclic aromatic hydrocarbons (PAHs) and soot is still required however (especially in the case of biofuels) to improve the predictive character of the computational codes used to design combustion devices. The purpose of the present program is therefore to provide insightful findings regarding the ability of different molecules to act as soot suppressors with the view to identify the must-have fuel properties necessary for the mid- to long-term commercialization of environmentally-friendly substitutes to petroleum-derived fuels. To do so, the present proposal which associates laboratory scale experiments and engine tests is composed of 3 main objectives summarized as follows: