Selective Primary Oxidation of Lignin Streams from Butanol‐Pretreated Agricultural Waste Biomass
作者:Isabella Panovic、Christopher S Lancefield、Darren Phillips、Mark Gronnow、Nicholas James Westwood
DOI:10.1002/cssc.201801971
日期:——
Chemically modified lignins are important for the generation of biomass‐derived materials and as precursors to renewable aromatic monomers. A butanol‐based organosolv pretreatment has been used to convert an abundant agricultural waste product, rice husks, into a cellulose pulp and three additional product streams. One of these streams, a butanol‐modified lignin, was oxidized at the γ position to give
化学改性的木质素对于产生生物质衍生的材料以及作为可再生芳香族单体的前体非常重要。基于丁醇的有机溶剂预处理已用于将丰富的农业废品(稻壳)转化为纤维素纸浆和另外三种产品流。这些物流之一是丁醇改性的木质素,在γ位置被氧化,得到羧酸官能化的材料。随后酸与苯胺的偶联有助于木质素的表征,并作为该方法将侧链接枝到木质素核心结构上的灵活性的一个实例。预处理规模扩大了,可用于多公斤级的规模,这一发展使得能够分离出高纯度丁氧基化木糖的异头混合物。