Recent Advances in Lignin Extraction Recovery from Natural Lignocellulosic Biomass into Environmentally Friendly Biofuel and Biochemical

Abstract

Lignin is an essential structural component that is present in all vascular plants. It is essential for the development of connective tissues because it confers stiffness, strength, and resistance to external stimuli like infections. Lignin has a variety of economic applications, and its extraction might lead to the development of several novel applications. Therefore, it is of the utmost significance to develop efficient and long-lasting solutions for lignin extraction from biomass. Following pretreatment, lignin was characterized utilizing EDS (Environmental Design Space), SEM (Scanning Electron Microscopy), proximate and ultimate analyses. For this reason, one of the objectives of the current study is to examine optimized lignin extraction by Chemical extraction method from different biomass including; sugarcane bagasse, rice straw, and wheat straw. The greatest yield was obtained by adjusting the time and temperature in a material-to-material ratio of 1:20 during the pre-treatment process that was utilized to extract the lignin. The initial series of trials were conducted at temperatures ranging from 400 to 650 °C without the use of any inert gas for fluidization. Finally, different lignin yield like 8% by rice straw and 7% by wheat straw as well as 6 % by sugarcane bagasse was obtained.