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首页> 外文期刊>Journal of Applied Polymer Science >Renewable chemical feedstocks from peanut shell liquefaction: Preparation and characterization of liquefied products and residue
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Renewable chemical feedstocks from peanut shell liquefaction: Preparation and characterization of liquefied products and residue

机译：花生壳液化的可再生化学原料：液化产物和残渣的制备和表征

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The objective of this investigation is to liquefy peanut shell for the preparation of aromatic polyol-rich products. The influences of reaction parameters are discussed. It is found that, compared to single-solvent, the mixture of polyethylene glycol and glycerol as solvents shows higher liquefaction efficiency. And the maximum liquefaction yield of 98.7 wt % can be achieved when the sulfuric acid content, mass ratio between polyethylene glycerol, glycerol, and peanut shell powder, liquefaction temperature, and time are 17 wt % (relative to peanut shell), 8/2/1, 150 degrees C, and 2 h, respectively. Furthermore, the solubility test result indicates that the liquefied products are fully soluble in the water and polyol. Meanwhile, the properties of the peanut shell and liquefaction residue were analyzed by means of attenuated total reflectance-Fourier transform infrared spectroscope, thermal gravity analysis, and scanning electron microscope. The polysaccharide is degraded by the cleaving of C-O bond, and the lignin is decomposed by leaving the dominant linkages including beta-O-4, 4-O-5, and dibenzodioxocin units. The fibers in the peanut shell are broken, and the nondegraded components in the residue lost their network structure. (C) 2016 Wiley Periodicals, Inc.
机译：这项研究的目的是液化花生壳，以制备富含芳香族多元醇的产品。讨论了反应参数的影响。发现与单溶剂相比，聚乙二醇和甘油作为溶剂的混合物显示出更高的液化效率。当硫酸含量，聚甘油，甘油和花生壳粉的质量比，液化温度和时间为17 wt％（相对于花生壳）为8/2时，最高液化产率为98.7 wt％分别为/ 1、150摄氏度和2小时。此外，溶解度测试结果表明液化产物完全溶于水和多元醇中。同时，通过衰减全反射-傅立叶变换红外光谱仪，热重分析和扫描电子显微镜分析了花生壳和液化残渣的性质。多糖通过C-O键断裂而降解，木质素通过留下包括β-O-4、4-O-5和二苯并二恶英单元在内的主要键而分解。花生壳中的纤维断裂，残留物中未降解的成分失去了网络结构。 （C）2016威利期刊公司

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