Molecular Characterization Of Cellulosic Biomass Liquid Fuel Oil

Cellulosic biomass can be converted into liquid fuel through processing,which is of great significance for efficient utilization of biomass,reduction of environmental pollution and reduction of over-dependence on petroleum resources.At the same time,it is important to analyze and study the cellulosic biomass liquid fuel oil from the aspect of molecular composition and molecular structure.In order to complete the research on the molecular characterization of cellulosic biomass liquid fuel oil,this paper determined the detailed molecular composition and molecular structure characteristics of cellulosic biomass liquid fuel oil based on advanced molecular characterization methods,and mastered the molecular composition and molecular structure information of biomass fuel.For the biomass fuel produced in the process of converting cellulosic biomass into liquid fuel,a comprehensive evaluation study on the quality of biomass fuel was systematically carried out to master the physical and chemical characteristics of biomass oil.Based on GC-TOF/MS,NMR and FT-IR analysis methods,the molecular composition and structure of E92 gasoline and No.0 diesel fuel oil were studied in detail.It provides important basic data for analyzing the quality of all kinds of biomass and the quality of oil during the transformation process.In order to obtain the important information such as the average molecular structure parameters,the relative contents and distribution characteristics of various functional groups of biomass oil,E92gasoline and No.0 diesel fuel,this study adopted the cooperative utilization of ~1H-NMR,¹³C-NMR and FT-IR analysis methods to complement and verify the experimental results.The research method adopted in this paper can provide important reference for the study of oil molecular characterization.The results showed that the main components of cellulosic liquid fuel oil were alkanes,cycloalkanes,monocyclic aromatic hydrocarbons,polycyclic aromatic hydrocarbons and polycyclic aromatic hydrocarbons.FT-IR analysis showed that the composition of cellulosic liquid fuel oil was mainly a mixture of aliphatic hydrocarbon,aromatic hydrocarbon and alkylated aromatic hydrocarbon.The lipid structure of cellulosic liquid fuel oil mainly consists of methyl（-CH₃）and methylene（-CH₂-）,and the aromatic structure mainly consists of benzene ringⅢand benzene ring IV.At the same time,in this paper,the molecular characterization of cellulosic liquid fuel oil was systematically and comprehensively completed,and the detailed molecular composition and molecular structure information were obtained,and compared with E92 gasoline and No.0 diesel fuel.The comprehensive evaluation of cellulosic biomass oil quality can provide reference for the control of various conversion processes of cellulosic biomass liquid fuel.