Effects of inorganic salts on pretreatment of Miscanthus straw

Promoting Effect of Sodium Chloride on the Solubilization and Depolymerization of Cellulose from Raw Biomass Materials in Water

“…This result further corroborates the results of ESI‐MS and GPC, which showed that NaCl could promote the depolymerisation of cellulose to yield liquid oligomers with low molecular weights (concentrated between 200 and 400 Da) but was not effective for the further conversion of oligomers to monomer products. This result also agrees well with published results that NaCl is not effective (or at least not as effective as FeCl 3 or CuCl 2 ) in the conversion of cellulose to produce monomer products 7a. 9…”

“…Besides, it is considered that NaCl contributes to the solubilization of cellulose and to the disruption of the chemical bonds between cellulose and either hemicellulose or lignin. This result is remarkably distinct from those reported in the literature, which indicate that NaCl is either ineffective or scarcely effective in cellulose conversion 7a. 9 The almost complete conversion of cellulose from raw biomass materials in the NaCl‐H 2 O system suggests that it could represent a new green system that uses H 2 O as a solvent to dissolve cellulose and that it could thereby replace expensive ILs.…”

“…More recently, a few reports have used NaCl as an additive for cellulose dissolution, and conversion was observed to occur 8. However, any additional functions of NaCl were ignored, and it is commonly believed that, in the absence of other catalysts, NaCl shows either no effect or only a modest promotion of cellulose dissolution 7a. 9 To the best of our knowledge, there are few studies on the dissolution or conversion of cellulose in aqueous NaCl solution, even though NaCl‐H 2 O could be considered a green system.…”

Effect of Reaction Factors on Reducing Sugar Production from Enteromorpha intestinalis Using Solid Acid Catalyst

“…바이오매스로부터 바이오에너지로의 전환을 위해서는 바이오매스의 단량체로의 가수분해가 중요한 공정 중에 하나이며, 이러한 가수분 해는 바이오매스와 촉매의 특성, 그리고 공정의 변수에 따라 영향을 받는다 [9][10][11][12]. 해조류에서 유용한 성분을 회수하기 위해서는 온수나 산, 알칼리 또는 효소를 이용하였으나, 최근에는 이온성 액체, 고압 액화추출, 마이크로웨이브 조사 등의 방법이 이루어지고 있다 [2][3][4]7,8,[13][14][15].…”

Low‐temperature, Low‐Energy, and High‐Efficiency Pretreatment Technology for Large Wood Chips with a Redox Couple Catalyst

“…The production of second-generation biofuels from lignocellulosic sourcesi samajor concern for industry and academia from at echnology-development perspective. [8][9][10][11][12] In the recent past, severalp retreatment methods have been reported for biomass using steam explosion, [13] such as the sulfite pretreatment to overcome recalcitranceo fl ignocelluloses (SPORL) process, [14] hydrotropes, [15] hot-compressed water pretreatment, [16] dilute acid, [17] inorganic salt, [18] and lime, [19] to remove or alter lignin and hemicellulose and to improvet he enzymatic accessibility of the substrate. The polysaccharides present in wood, which is ad ominant lignocellulosicb iomass, depolymerize upon mild enzymatic hydrolysis or acid hydrolysis to produce the corresponding monosaccharides such as glucose, xylose,a nd mannose.…”