Green liquor ( GL ) was used as a sulfide rich liquor to impregnate Southern pine wood chips in a pretreatment step for kraft pulping. A central composite experimental design was applied to investigate relationships between pretreatment conditions, chemical absorption, pulping selectivity, and primary pulp qualities. The derived equations provided a correlation between the independent cooking v...

BACKGROUND Xylan has been identified as a physical barrier which limits cellulose accessibility by covering the outer surface of fibers and interfibrillar space. Therefore, tracking xylan is a prerequisite for understanding and optimizing lignocellulosic biomass processes. RESULTS In this study, we developed a novel xylan tracking approach using a two-domain probe called OC15 which consists o...

The kraft process is applied to wood chips for separation of lignin from the polysaccharides within lignocellulose for pulp that will produce a high quality paper. Black liquor is a pulping waste generated by the kraft process that has potential for downstream bioconversion. However, the recalcitrant nature of the lignocellulose resources, its chemical derivatives that constitute the majority o...

Abstract The effect on softwood fiber wall nanostructure of kraft cooking, oxygen delignification and refining was evaluated by X-ray scattering. A recently developed simulation method for modelling small angle scattering (SAXS) data used to estimate the apparent average sizes solids (AAPS) interstitial spaces in (AACS). Fiber saturation point wide were also calculate pore volume crystallite si...

Chemical and morphological characterization of different parts of banana plant(Musa paradisica) (peduncle, leaf stalk and pseudo stem) were carried out in orderto assess their potentiality for chemical pulp. Each portion was tested forextractives, sodium hydroxide solubility, ash, lignin, cellulose and pentosancontents as well as their fiber length and width. These segmented parts werecharacter...

Lignin is a precursor of humus, and by-product the pulp paper industry. This study investigated synthesis soil conditioning materials from industrial lignins (kraft, soda sulphite), through ammoxidation. The were characterized ammoxidized in 1 L Parr reactor at 80 °C, 10 barg, for 4 h, with 7 wt% ammonia lignin reaction mixture. A plant trial assessment products was conducted over four weeks. N...