Results 21 to 30 of about 274,187 (223)
BioResources, 2022 Hemicelluloses consume alkali during kraft pulping and dissolve in the black liquor as a low energy fuel. Acidic pre-hydrolysis of softwood chips removes hemicelluloses but preserves cellulose content prior to pulping.
Jingqian Chen +4 more
doaj +2 more sources
Revista Árvore, 2003 Neste estudo foram avaliados os efeitos do conteúdo e da natureza da lignina residual na eficiência e na seletividade do branqueamento com ozônio de polpa kraft convencional (kraft) e pré-deslignificada com oxigênio (kraft-O).
Elenice Pereira Maia +1 more
doaj +1 more source
Biomass & Bioenergy, 2019 Xylanase extract, produced by T. reesei QM9414 in a culture with sugarcane straw (SS) as substrate, was studied in the biobleaching of Kraft pulp associated with chemical bleaching. The biobleaching parameters optimization showed that 30 U/g of xylanases,
T. Campioni +4 more
semanticscholar +1 more source
Kraft Lignin: A Valuable, Sustainable Resource, Opportunities and Challenges.
ChemSusChem, 2023 Kraft lignin, a by-product from the production of pulp, is currently incinerated in the recovery boiler during the chemical recovery cycle, generating valuable bioenergy and recycling inorganic chemicals to the pulping process operation.
D. Argyropoulos +13 more
semanticscholar +1 more source
Sisal organosolv pulp as reinforcement for cement based composites
Materials Research, 2009 The present work describes non-conventional sisal (Agave sisalana) chemical (organosolv) pulp from residues of cordage as reinforcement to cement based materials.
Ana Paula Joaquim +3 more
doaj +1 more source
Comparison on the characteristics of Salix nigra Kraft and Soda pulp and paper [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2014 In this study pulp and hand sheets paper characteristics of Salix nigra wood kraft and soda pulp and paper were investigated. Average density of dry and bulk density wood were determined 0.35 and 150 kg/m3 and average fiber dimension consist of fiber ...
Lila Karami motaghi +2 more
doaj +1 more source
Nanomaterials, 2023 Due to environmental concerns regarding single-use plastic materials, major efforts are being made to develop new material concepts based on biodegradable and renewable resources, e.g., wood pulp. In this study, we assessed two types of wood pulp fibres,
Eirik Ulsaker Jacobsen +5 more
doaj +1 more source
Improvements in pulp properties by alkali preextraction and subsequent kraft pulping with controlling H-factor and alkali charge [PDF]
BioResources, 2012 The objective of this study was to determine the processing conditions for obtaining improved pulp properties from the kraft pulping process with an alkali pre-extraction stage.
Kyujeong Sim +4 more
doaj
Journal of Natural Fibers, 2022 The current study investigated the Ethiopian sugarcane bagasse during its delignification using the Kraft pulping process and bleaching by single stage hydrogen peroxide process.
Medhanit Mamaye +3 more
doaj +1 more source