Secondary Reactions of Prompt Biomass Pyrolysis Liquids

这项研究的主要目标是提高现有的认识， 热反应行为（包括化学计量和动力学） 四种工业上重要的可再生材料：木材及其三种 主要成分（纤维素，半纤维素和木质素），重点 木材热解焦油的二次反应。 具体 这一努力的重点是：系统研究的比率和 新形成木材的颗粒外二次反应程度 热解液体，包括气相和 气固反应，后者可能侧重于木材的影响 以及颗粒内次级反应的探索性研究 包括液相反应，分子量增长， 和成炭过程。 这些研究将提供关键的 动力学参数和化学计量系数，以进一步最终 目的是更好地了解热反应行为， 大尺寸生物质颗粒和数学发展 易处理的整体生物量模拟理论。

The broad goal of the research is to improve existing understanding of the thermal reaction behavior (including stoichiometry and kinetics) of four industrially important renewable materials: wood and its three major constituents (cellulose, hemicellulose and lignin), with emphasis on secondary reactions of pyrolysis tars from wood. The specific thrusts of this effort are: systematic studies of the rates and extents of extraparticle secondary reactions of freshly formed wood pyrolysis liquids including examination of both vapor phase and vapor-solid reactions, the latter probably focusing on effects of wood char; and exploratory studies of intra-particle secondary reaction phenomena including liquid phase reactions, molecular weight growth, and char-forming processes. These studies are expected to provide key kinetic parameters and stoichiometric coefficients to further ultimate objectives of better understanding of the thermal reaction behavior of large dimension biomass particles and of developing mathematically tractable whole biomass simulation theories.