Catalytic hydroconversion of a wheat straw soda lignin: Characterization of the products and the lignin residue

Lignin degradation and stability: Volatile Organic Compounds (VOCs) analysis throughout processing

“…Ltd. and was used as received (without drying). Lignin's elemental composition in terms of carbon, hydrogen, oxygen, nitrogen, sulfur, sodium, water and ash contents is well studied in literature [18,24,31]. Its moisture content is in the range of 2e3% and its ash content is ranging from 2 to 5% [24,31].…”

“…1. Aromatic (a) and oxygenated aliphatic regions (b) These are residues of wheat straw lignin, incompletely extracted by the mild alkaline hydrolysis, as also identified in another study [31]. The 2D correlation { 13 C/ 1 H} HSQC identified substructures are assembled in Fig.…”

Kinetic study of the conversion of 2-methoxyphenol over supported Re catalysts: Sulfide and oxide state

“…Besides, the use of lignocellulosic compounds as a precursor of carbonaceous materials has gained interest due to its low cost and high availability [5][6][7][8]. Catalytic hydrodeoxygenation (HDO) has been demonstrated as an interesting and effective route to improve the properties of biomass-derived oil.…”

“…Pyrolysis of lignocellulosic biomass leads to compounds which have the potential to constitute an alternative source of fuel (bio-oil) and value-added chemicals [1][2][3][4]. Valorization of biomass is based on the production of chemicals like phenols or aromatics (BTX: benzene, toluene, xylene) from the lignin polyphenolic structure [5].…”

Thermochemical Conversion of Lignin for Fuels and Chemicals: A Review

“…Again by analogy with the coal (or lignite) hydroconversion, iron sulfide catalysts were employed to convert a eucalyptus lignin into liquids with different types of solvents [88]. Recent work on the hydroconversion of a wheat straw soda lignin over sulfide NiMo-based catalyst in tetralin showed that a part of lignin residue can be still solubilized in the liquid phase and only a specific product recovery protocol can allow to separate this partially converted lignin fraction [89].…”