Results 71 to 80 of about 743 (161)
An effective process for the chemical-biotechnological utilization of barley husks is reported. A first treatment with sulfuric acid (prehydrolysis) allowed the solubilization of hemicelluloses to give xylose-containing liquors (suitable to make ...
A.B. MOLDES, J.M. CRUZ, J.M. DOMÍNIQUEZ
doaj
Background In the kraft-based dissolving pulp production process, pre-hydrolysis liquor (PHL) is produced, which contains hemicelluloses, lignin, furfural and acetic acid.
Jiachuan Chen +5 more
doaj +1 more source
The chemical composition of marabou (Dichrostachys cinerea) wood and its treatment with acetic acid were investigated. Two different treatment approaches, direct acetosolv and combined acid prehydrolysis/acetosolv, were evaluated.
Rocha, George J M +14 more
core +1 more source
Prehydrolysis was used as the first treatment of bamboo materials for producing high dissolving pulp for textile applications. In this paper, green bamboo (Dendrocalamopsis oldhami) was hydrolyzed in water, and the hydrolysis process was optimized.
Xiaojuan Ma +3 more
doaj
The growing demand for rayon and cellulosic products has resulted in the conversion of a number of kraft pulp mills into dissolving pulp mills in recent years.
Laboni Ahsan +3 more
doaj +1 more source
Continuous Prehydrolysis in Sulfate Process for Preparation of Dissolving Pulp
In the preparation of dissolving sulfate pulp by the conventional batch system, the digestion is about three cycles per day, and the acid treatment (prehydrolysis) and alkaline cooking (sulfate cooking) are both carried out in a single digester. This process could be improved markedly by separating the prehydrolysis process from the alkaline cooking ...
Horio, Masao, Takahama, Michihiro
openaire +2 more sources
This work deals with the recovery of phenolic compounds from the solid residue obtained after the prehydrolysis of trimming vine ...
A. Torrado +5 more
core +1 more source
Residual lignin present in alkali pulps prepared from oil palm (Elaeis guineensis) empty fruit bunch was isolated using an enzymatic method and characterized successfully by pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS).
Yin Ying H'ng +4 more
doaj +1 more source
Acidification of prehydrolysis liquor and spent liquor of neutral sulfite semichemical pulping process [PDF]
Acidification has been commercialized for producing kraft lignin from black liquor of kraft pulping process. This work intended to evaluate the effectiveness of acidification in extracting lignocelluloses from the spent liquor of neutral sulfite ...
Dashtban, Mehdi +7 more
core +1 more source
Water prehydrolysis can be used as a pretreatment to extract hemicelluloses and lignin from biomass prior to its conversion into value-added products. In this study, the effects of operational conditions such as reactor system, flow, particle size, and ...
Sixta, Herbert +5 more
core +1 more source

