Characteristics of liquid products from hydrothermal liquefaction of typical crop straws under CO atmosphere
Characteristics of liquid products from hydrothermal liquefaction of typical crop straws under CO atmosphere
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CO气氛下典型农作物秸秆水热液化液体产物特征
DOI：
10.1179/1743967112z.00000000051
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发表时间：
2016-04
影响因子：
5.7
通讯作者：
Gao Jinsheng
中科院分区：
文献类型：
--
作者：
Wu Shiyong;Pen Wencai;Wu Youqing;Gao Jinsheng
在500 mL高压釜中对3种典型农作物秸秆（玉米秸秆、小麦秸秆和棉花秸秆）在CO气氛下进行水热液化。同时，采用元素分析、气相色谱-质谱联用和核磁共振氢谱等手段对液相产物的主要性质和化学组成进行了研究。在CO气氛下的水热液化中，典型农作物秸秆的转化率和液化产物的产率分别达到82？4-91？6%，35？8-39？5%，低氧含量（10？64比14 01%）、高H/C比（1？05-1？28)和微量的S和N有一个高热值之间的34？14和36？73千焦g 21 .气相色谱-质谱联用和核磁共振氢谱分析结果表明，脂多糖主要由酚类衍生物、长链烷烃和其他含氧化合物（羧酸、酮和酯）组成，还含有大量的脂肪族组分，是一种潜在的可再生燃料和化工原料。此外，还发现在水热液化过程中，烷氧基中的C-O键容易断裂，而酚羟基中的O不易脱除。
The hydrothermal liquefaction of three typical crop straws (corn, wheat and cotton straws) under CO atmosphere was carried out in a 500 mL autoclave. Simultaneously, the main properties and chemical compositions of the liquid products (LPs) were investigated by the elemental analysis, gas chromatography–mass spectrometry and 1 H nuclear magnetic resonance. In the hydrothermal liquefaction under CO atmosphere, the conversion of typical crop straws and the yield of LPs are respectively up to 82?4–91?6% and 35?8–39?5%, and the LPs with low O content (10?64–14?01%), high H/C ratio (1?05–1?28) and trace amounts of S and N have a high heating value between 34?14 and 36?73 kJ g 21 . The results of gas chromatography–mass spectrometry and 1 H nuclear magnetic resonance analyses show that the LPs are mainly composed of phenol derivatives, long chain alkanes and other O containing compounds (carboxylic acids, ketones and esters) and also contain a large amount of aliphatic fractions, suggesting that the LPs might be potentially valuable resources as renewable fuel and chemical feedstocks. In addition, it has been found that the cleavage of C–O bond in alkoxyl groups is easy in the hydrothermal liquefaction process, while the removal of O from phenolic hydroxyl group is difficult.
影响因子：
10.4
作者：
Sinag, Ali;Gulbay, Selen;Canel, Muammer
通讯作者：
Canel, Muammer