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c4frank

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[交流] 生物油唯一上市公司 KiOR破产了

KiOR是生物油领域的唯一上市公司。该公司申请了众多专利，并且在ACS Energy&Fuels也发表了相应的油品老化研究，然而最后还是宣布破产了。In November 2014, cellulosic biofuel company KiOR filed for bankruptcy, having shut down their refinery in Columbus, Mississippi earlier that year.

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c4frank

金虫 (正式写手)

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c4frank: 回帖置顶 2017-07-20 01:42:43

油品陈化稳定性不好，所以生物油都存在的问题！你看高温加速陈化的实验结果，在管道中的预热阶段就快固化了！
Impacts of Thermal Processing on the Physical and Chemical Properties of Pyrolysis Oil Produced by a Modified Fluid Catalytic Cracking Pyrolysis Process

Accelerated aging was examined over a broad temperature range (40–290 °C) to determine the stability and different aging mechanisms for pyrolysis oil produced using fluid catalytic cracking (FCC) of solid particulate biomass material. Oil properties, including water content, high-molecular-mass (HMM) lignin content, viscosity, molecular weight, and chemical composition, were measured both before and after the accelerated aging study. Notably, at all aging times and temperatures explored, all samples remained as a single phase. Chemical composition of the pyrolysis oils was monitored using infrared and mass spectroscopies. Oils aged at temperatures above 60 °C showed marked increases in HMM lignin content and molecular weight with increasing aging time. Calorimetry results indicated that, at and above 200 °C, there were alternate aging mechanisms that occur, including sugar decomposition. A rapid increase in the water content and shift in the HMM fraction molecular weight corroborated the decomposition of sugars, which led to the formation of water and reactive monomers. Fourier transform infrared (FTIR) results showed that similar aging reactions occurred for oils aged between 40 and 80 °C and between 150 and 290 °C. Gas chromatography–mass spectrometry (GC–MS) results suggested the reactions among furfural, 2-cyclopenten-1-one, 2-hydroxy-3-methyl-2-cyclopenten-1-one, hydroxybenzenes with available ortho/para sites, and the active sites on HMM lignin contributed to property changes as a result of heat treatment.