No abstract

Recently, a continuous rising awareness among human community to an environmental issue had changed the frame of current scenario and shifted a whole attention of research community towards the sustainable energy options & selecting the greener-solvents technology like Ionic-Liquids (ILs). An ionic-liquid technology known to augment the biorefineries pre-processing step mainly targeted to dissolute the complex and rigid structure of lignocellulosic biomass and promote to produce an economically valuable biofuels. 1-Butyl-3methylimidazolium acetate [BMIM][COO−] and 1-Butyl-3-methylimidazolium chloride [BMIM][Cl−] (ILs) were extensively studied in a current research study. Studied Ionic-liquids have a great capacity to fractionate the plant cellular components by employing the process of delignification, as it can be depicted through an evaluation of degree of cellulose-crystallinity index. Current study exploits an aqueous-ionic-liquid technology, where a combined reaction mixture of deionized-water, ionic-liquids (ILs) and biomass load-size were used in (1:10:1) ratio under vacuum. An observed result of the study determined the Total reducing sugar (TRS) content and residual lignin yield after employing the ILs pretreatment. It estimate yield of Total reducing sugar (46.6%) and residual lignin (36.25498%) in S-12 shell biomass pretreated with [BMIM][COO−] at 120°C for 2.5h under vacuum. Although, Taguchi approach significantly notified the affect of process parameters during the ILs pretreatment processing. In this context, water-content (wt%) had found the most dominant physical factor instead of, temperature and time-duration. This research study also finds the S-12[BMIM][COO−], an effective biomass candidate compared to other studied biomasses to achieve the high biofuel yield in a cost-effective manner.