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Study on an alternative approach for the preparation of wood vinegar from the hydrothermolysis process of cotton stalk

机译:棉秸秆水热溶液制备木醋的替代方法研究

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摘要

The yield and pH of the refined aqueous product (RAP) prepared by the hydrothermolysis of cotton stalk (CS) were investigated using response surface methodology with the variation of three parameters: CS/water ratio of 0.05-0.15w/w, temperature of 180-280 degrees C, and retention time of 0-30 min. At the best formulation (0.05w/w, 264.36 degrees C and 0 min), the yield and pH of RAP were 82.8% and 3.95, respectively. Additionally, the organic compounds contained in RAP prepared under the respective optimal formulation (pH: 0.05w/w, 251.43 degrees C and 0 min, yield: 0.05w/w, 280.00 degrees C and 0 min) were determined by gas chromatography and mass spectrometry. The results show that the kinds of compounds in RAP are identical or similar to those in the wood vinegar (WV), but their contents is slightly higher than that of the WV. In sum, it is feasible that RAP has the enormous potential to be utilized as WV probably because of its higher quality and value than WV.
机译:使用响应表面方法研究了通过三个参数的变化来研究通过棉茎(CS)水解的精制水性产物(RAP)的产率和pH:CS /水比为0.05-0.15W / W,温度为180 -280℃,保留时间为0-30分钟。 在最佳配方(0.05W / W,264.36℃和0分钟),RAP的产率和pH分别为82.8%和3.95。 另外,通过气相色谱和质量测定,在相应的最佳制剂(pH:0.05W / W,251.43℃和0 min)下制备的RAP中包含的有机化合物(pH:0.05w / w,251.43,产率:0.05w / w,280.00℃和0 min)。 光谱法。 结果表明,RAP中的各种化合物与木醋(WV)中的种类相同或相似,但它们的内容物略高于WV的内容物。 总而言之,RAP具有巨大的潜力,可能是由于其高质量和价值高于WV。

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