High-efficient cellulosic butanol production from deep eutectic solvent pretreated corn stover without detoxification

Production of butanol from lignocellulosic biomass: recent advances, challenges, and prospects

“…58,59 In a short time (90 min) and with low energy consumption (120 C) and a deep eutectic solvent (DES) pretreatment process, total sugars were increased to 37.94 g L À1 (30.59 g L À1 glucose, 7.35 g L À1 xylose) at a low enzyme loading of 7.5 g of lter paper units (FPU) per L of pretreated corn stover (CS), and 13.65 g L À1 total ABE was achieved with high productivity (0.68 g L À1 h À1 ) and yield (0.38 g g À1 ) from DES-pretreated CS hydrolysate without any detoxication and sterilisation. 60 In addition, combinations of pretreatment method have been also employed and shown to exert synergic effects on the quality of resulting hydrolysate, including a high yield of monomeric sugars and low levels of inhibitors. 61,62 For example, aer pretreatment with optimised microwave-assisted alkali pretreatment followed by acid hydrolysis, 76.3% lignin removal, 21.1% hemicellulose and 71.9% cellulose were obtained at 640 W microwave power, 2.8% NaOH, and 19 min treatment time, producing 46.2 g L À1 of reducing sugar and 18.7 g L À1 ABE.…”

Efficient and selective removal of Pb(ii) from aqueous solution by a thioether-functionalized lignin-based magnetic adsorbent

“… 13 Although different polymers 14 such as polyacrylamide, polyacrylate and polystyrene have been introduced onto the surface of magnetic cores as shell layers for heavy metal removal, these fossil-based chemicals suffer from high energy consumption and non-degradability. Very recently, owing to the increasing requirements of sustainable development and continuous environmental awareness, 15,16 the search for low-cost and renewable magnetic composites with high removal capacity has become a challenge.…”

Adsorption of 5-Hydroxymethylfurfural, Levulinic Acid, Formic Acid, and Glucose Using Polymeric Resins Modified with Different Functional Groups

“…Petroleum, coal, and natural gas industries have made significant contributions to mankind and played a vital role in the sustainable development of economy and society. , However, owing to the declining supply and rising cost of fossil resources, combined with the global warming and climate change, great attention has been paid on sustainable routes to produce chemicals, solvents, and fuels from renewable lignocellulosic biomass. , Lignocellulosic biomass, as the maximum renewable plant biomass in nature, can be transformed into high value-added platform chemicals by chemical catalysis technology or biorefinery. , Among these attractive platform chemicals, 5-hydroxymethylfurfural (5-HMF) has drawn increasing interest as a potential biomass-derived platform chemical, which can be produced from C6 sugars (i.e., glucose and fructose) via acid catalysts. − Furthermore, 5-HMF can be used as a building block platform to synthesis high value-added chemicals currently being produced from fossil resources, such as levulinic acid (LA), 2,5-dimethylfuran, 2,5-furandicarboxylic acid, and 2,5-diformylfuran. − LA is one of United States Department of Energy’s top 12 platform chemicals because it can be used as spice raw materials, pesticide intermediates, animal feed, resin raw materials, coatings, and so forth . Formic acid (FA) is a biomass-derived organic acid, and it can be used in leather, dye, medicine, and rubber industries for its low cost and abundant supply …”

“…3,4 Lignocellulosic biomass, as the maximum renewable plant biomass in nature, can be transformed into high value-added platform chemicals by chemical catalysis technology or biorefinery. 5,6 Among these attractive platform chemicals, 5-hydroxymethylfurfural (5-HMF) has drawn increasing interest as a potential biomassderived platform chemical, which can be produced from C6 sugars (i.e., glucose and fructose) via acid catalysts. 7−14 Furthermore, 5-HMF can be used as a building block platform to synthesis high value-added chemicals currently being produced from fossil resources, such as levulinic acid (LA), 2,5-dimethylfuran, 2,5-furandicarboxylic acid, and 2,5-diformylfuran.…”