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Quantitative analysis of multi-component gases mixture
evolved in combined TG-FTIR |
| CHEN Ling-hong, WU Xue-cheng, ZHOU Hao, CEN Ke-fa |
| State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China |
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Abstract To quantitatively investigate multicomponent gases evolved by continuous or overlapping thermal reactive processes, a method to determine evolved rates of multicomponent gases was developed from temporal infrared functional group profiles using a combined system of Thermogravimetry and Fourier transform infrared (TGFTIR). The influence of flow rates of carrier gas on quantitative calculating results of multicomponent gas products was discussed by taking example for the gases such as carbon dioxide, carbon monoxide, and sulfur dioxide evolved from soot and oxygen reaction. The calculation results indicate that the loss of reactive gas and the occurrence of trace gases products during thermal reaction can be ignored with appropriate flow rate of carrier gas for determination of the evolved rates of multicomponent gases products. An approximate quantitative method can be used to identify quickly the evolved rates of gases when some components weakly or even do not absorb infrared energy during thermal reaction process．
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Published: 21 September 2010
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热重红外联用多组分混合气体产物定量分析
考虑基本结构的多功能属性,以粒度更细的基本操作表达功能元,基于功能层和结构层的动态划分与优化匹配,提出一种创新增强型功能行为结构(FBS)模型.以商空间三元素表达功能、功能属性和功能拓扑连接与时序关系,基于商空间不同粒度之间的转换,给出构建功能分解与或树的商空间数学描述.以基本操作表达基本结构的多功能属性,建立基本结构知识库,将结构层和功能层的基本操作之属性作为元素,构造功能结构匹配矩阵,根据属性元素最大匹配度得到功能结构最优匹配方案.
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