棉秆催化热解差异研究及预测
Research and Prediction of Catalytic Pyrolysis Difference of Cotton Stalk

本文旨在探究脱硫灰为催化剂下，棉秆、纤维素和木质素热解过程中不同混合比例与热解产物间的关系，为棉秆的高效利用和可持续发展提供部分理论支持。本文通过t检验，发现脱硫灰对棉秆中纤维素和木质素生成的热解产物均有不同促进。同时使用配对样本T检验对脱硫灰与纤维素和木质素两种组合得到的热解产物与热解气进行差异性分析。发现在相同混合比例下，纤维素与木质素的热解产物和热解气大多数都具有显著性差异。通过建立多项式回归拟合，用于研究混合比例对脱硫灰/纤维素热解的影响，模型系数表明混合比例对热解产物产率及热解气体产量有较大影响。此外，本文还采用灰色预测对不同混合比例下脱硫灰/棉秆的热解产物的产率进行了预测。
The purpose of this paper is to explore the relationship between different mixing ratios and pyrolysis products in the pyrolysis process of cotton stalk, cellulose and lignin with desulfurized fly ash as catalyst, and to provide some theoretical support for the efficient utilization and sustainable development of cotton stalk. In this paper, through t test, it was found that the desulfurized fly ash had different promotion effects on the pyrolysis products of cellulose and lignin in cotton stalk. At the same time, the paired sample T test was used to analyze the difference between the pyrolysis products and pyrolysis gas obtained by the combination of desulfurized fly ash and cellulose and lignin. It was found that most of the pyrolysis products and pyrolysis gases of cellulose and lignin had significant differences at the same mixing ratio. By establishing polynomial regression fitting, the influence of mixing ratio on the pyrolysis of desulfurization DFA/CE was studied. The model coefficients showed that the mixing ratio had a great influence on the yield of pyrolysis products and the yield of pyrolysis gas. In addition, the yield of pyrolysis products of desulfurization DFA/CS stalk under different mixing ratios was predicted by grey prediction.