Dong Tao, Xiong Wei, Yu Jianping, Pienkos Philip T
National Bioenergy Center, National Renewable Energy Laboratory 15013 Denver West Parkway Golden CO 80401 USA
RSC Adv. 2018 Oct 8;8(60):34380-34387. doi: 10.1039/c8ra07359g. eCollection 2018 Oct 4.
Medium chain-length linear α-olefins (-LAO) are versatile precursors to commodity products such as synthetic lubricants and biodegradable detergents, and have been traditionally produced from ethylene oligomerization and Fischer-Tropsch synthesis. Medium chain-length polyhydroxyalkanoic acid (-PHA) can be produced by some microorganisms as an energy storage. In this study, biomass that contained -PHA was used in HTL at 300 °C for 30 min, and up to 65 mol% of -PHA was converted into -LAO. The yield and quality of the bio-oil co-produced in the HTL was remarkably improved with the biomass rich in -PHA. Experiments with extracted -PHA revealed the degradation mechanism of -PHA in HTL. Overall, this work demonstrates a novel process to co-produce -LAO and bio-oil from renewable biomass.
中链长度的线性α-烯烃（-LAO）是合成润滑剂和可生物降解洗涤剂等商品的通用前体，传统上是通过乙烯齐聚和费托合成生产的。中链长度的聚羟基脂肪酸（-PHA）可由一些微生物作为能量储存物质产生。在本研究中，含有-PHA的生物质在300℃下进行水热液化30分钟，高达65摩尔%的-PHA转化为-LAO。富含-PHA的生物质显著提高了水热液化过程中联产生物油的产率和质量。对提取的-PHA进行的实验揭示了-PHA在水热液化中的降解机制。总体而言，这项工作展示了一种从可再生生物质中共生产-LAO和生物油的新工艺。
