Techno-economic assessment of corn stover for hybrid bioenergy production: A sustainable approach

Ionic-liquid-Assisted Fabrication of Lignocellulosic Thin Films with Tunable Hydrophobicity

“…35 For wood powder, about 50 mg was transformed into a homogenous gel by using the above-stated NMR solvent mixture and sonicating in a water bath for 5 h. Quantitative and qualitative HSQC measurements of the resulting gels were obtained in 8 scans (with a longer recycle delay) and 32 scans per increment (∼1.5 h), respectively, using a 600 MHz NMR instrument fitted with a cryoprobe. The 2D 1 H/ 13 C HSQC acquisition parameters published by Mansfield et al were followed, 35 and data processing was conducted using Mnova v14.2 software (Mestrelab Research S.L., Santiago, Spain). The DMSO-d 6 cross-peak signal at (δC/δH) 39.5/2.5 ppm was used as a reference, and the sample spectra were processed by applying a baseline correction (third-order Bernstein polynomial fit), manual phase corrections, Gaussian and exponential apodization (F1: 90 Hz/−10 Hz, F2: 10 Hz/−0.5 Hz), and a spectrum size of 1024 (along t1 and t2).…”

“…Lignocellulosic bioenergy feedstock, such as perennial grasses (switchgrass), short rotation woody crops (hybrid poplar), and agricultural residues (corn stover), have the potential to supply ∼450 million tons of dry biomass annually in the U.S. for sustainable bioproduct manufacturing. − Our previous research has shown that whole lignocellulosic biomass, that is, hybrid poplar, could be successfully dissolved in ionic liquids like 1-ethyl-3-methylimidazolium acetate ([EMIM]­[OAc]) and regenerated to form thin films exhibiting a continuous 3D network with uniformly dispersed domains . Initially, ionic liquids like [EMIM]­[OAc], 1-allyl-3-methylimidazolium chloride ([AMIM]­[Cl]), 1-butyl-3-methylimidazolium chloride, and [EMIM]­[Cl] were investigated to dissolve and cast cellulosic films by virtue of disrupting and substituting the natural intra- and inter-molecular hydrogen bonds between the elementary fibrils. − Later, dialkylimidazolium ionic liquids were demonstrated to achieve a near-complete dissolution of whole biomass, such as southern yellow pine, bagasse, miscanthus, beech, poplar, and eucalyptus, by virtue of hydrogen bond disruption, π–π stacking with lignin aromatic rings, and formation of electron donor/electron acceptor complexes between cation, anion, and lignocellulose. , The direct dissolution of lignocellulosic biomass would facilitate downstream fractionation of cellulose and lignin for value addition or manufacturing of biobased materials like films, , fibers, , and hydrogels .…”

Calorific Value of Zea mays Biomass Derived from Soil Contaminated with Chromium (VI) Disrupting the Soil’s Biochemical Properties

“…The interest in Zea mays as a plant with phytoremediation potential, eventually used not only for bioethanol production but also for the production of biogas or for direct combustion, is probably stimulated by the high potential of maize yields, which reach up to 12-15 Mg plant d.m. per 1 ha [22,23], or the fact that maize is equipped with genes which endow it with tolerance to biotic and abiotic stresses [24]. It is not without reason that the number of farms growing maize is predicted to reach 227 million worldwide by the year 2030 [25].…”

Effects of Coal and Sewage Sludge Ashes on Macronutrient Content in Maize (Zea mays L.) Grown on Soil Contaminated with Eco-Diesel Oil

“…The high yielding potential of this plant, up to 30-50 Mg (megagrams) per 1 hectare [3], has stimulated interest in using maize in biochemical processes, i.e., biogas production (fresh mass, silage) or bioethanol production (grain) [4], but also in direct incineration and thermo-chemical processes, such as pyrolysis or gasification employed to produce methanol, biogas and pyrolytic oils [1]. The high calorific value of the biomass, in the range of approximately 15.5 to 18.1 MJ kg −1 , is an additional argument for using maize for energy purposes [3,5,6].…”