Results 11 to 20 of about 289 (151)

Comparative Evaluation of Additives in Softwood Fractionation: Impacts on Lignin Recovery and Pulp Quality. [PDF]

ChemSusChem
Chemical lignin stabilization during acid hydrotropic fractionation is shown to distinctly influence delignification, lignin quality, and pulp performance. Phenol enhances lignin removal, while thiol‐based modifier yields light‐colored lignin, high recovery, and strong pulp.
Sirviö JA, Sheridan E, Arjmandi D, Haverinen J, Tarasov D, Xu C, Ämmälä A, Räty J.   +7 more
europepmc   +2 more sources

Fractionation of Wood Biomass With Thiolactic Acid and Choline Chloride-Based Solvent Into White Lignin for Sustainable Cooling Applications. [PDF]

ChemSusChem
A novel and highly efficient wood biomass fractionation method was developed to produce white lignin, exhibiting the brightest color reported to date. The process yielded white lignin with high yield, excellent visible light reflectance, and elevated infrared emissivity, highlighting its potential as an active material for passive radiative cooling ...
Sirviö JA, Liao M, Arjmandi D, Haverinen J, Wu R, Jonsson MP, Xu C, Ämmälä A, Räty JP.   +8 more
europepmc   +2 more sources

One-Step Extreme Delignification to Simultaneously Produce High-Purity Cellulose and Phenolated Lignin. [PDF]

ChemSusChem
An extreme delignification strategy using a formic acid–phenol–water system enables the simultaneous production of high‐brightness cellulose fibers and highly reactive phenolic lignin from various biomass sources, providing a sustainable pathway for high‐value utilization of lignocellulosic biomass.
Zhang Y, Wu R, Ni S, Chen X, Wang Z, Li Z, Fu Y, Qin M, Xu C.   +8 more
europepmc   +2 more sources

Electrochemical Characteristics of Lignin in CTMP for Paper Battery Electrodes. [PDF]

ChemSusChem
Lignin naturally present in papers made of unbleached mechanical pulps is electrochemically active. Here, softwood chemi‐thermomechanical pulp (CTMP) is studied as an active cathode material for application in paper batteries. Proof‐of‐concept measurements are shown, and it is found that softwood CTMP fines exhibit competing oxidative electrochemical ...
Isacsson P, Björk E, Capanema E, Granberg H, Engquist I.   +4 more
europepmc   +2 more sources

Cellulose Nanofibril (CNF) Films and Xylan from Hot Water Extracted Birch Kraft Pulps

Applied Sciences, 2019
The effects of xylan extraction from birch kraft pulp on the manufacture and properties of cellulose nanofibril (CNF) films were here investigated. Hot water extractions of bleached and unbleached kraft pulps were performed in a flow-through system to ...
Marc Borrega, Hannes Orelma
doaj   +1 more source

Effect of H2O2 bleaching with ultrasonication on the properties of thermomechanical pulp and unbleached kraft pulp

Ultrasonics Sonochemistry, 2015
Abstract H2O2 was used in the final stage of a multistage bleaching process to increase ISO brightness by 2–3%, because of the poor selectivity and bleachability. However, concerns about the environmental load of the bleaching process have led to the efficient use of oxygen-derived compounds, with a concomitant decrease in the quantity of chlorine ...
Jin-Ho Seo, Hyoung-Jin Kim
openaire   +2 more sources

Energy Analysis of Bioethanols Produced from Dendrocalamus Latiflorus

Chemical Engineering Transactions, 2013
The Ma bamboo (Dendrocalamus latiflorus Munro) covers 152,300 ha in Taiwan, roughly of 7.2 % the overall forest area. This study calculated the energy and mass balance of Ma bamboo as a feedstock for bioethanol production.
H. Ko C, N. Wang Y, C. Chang F, Y. Lee C, H. Chen W, S. Hwang W   +5 more
doaj   +1 more source

Production and Characterization of Cnf and Lcnf, and Manufacture of Lcnf-nanostructured Packaging Papers

Chemical Engineering Transactions, 2019
Nanotechnology applied to pulp and paper sector enables production of nanostructured papers with excellent strength properties. The addition of lignocellulose nanofibrils (LCNF) to traditional kraft pulps is an attractive alternative for production of ...
Iara Demuner, Jorge Luiz Colodette, Fernando J.B. Gomes, Rubens C. Oliveira   +3 more
doaj   +1 more source

Ethanol Production from Hydrolyzed Kraft Pulp by Mono- and Co-Cultures of Yeasts: The Challenge of C6 and C5 Sugars Consumption

Energies, 2020
Second-generation bioethanol production’s main bottleneck is the need for a costly and technically difficult pretreatment due to the recalcitrance of lignocellulosic biomass (LCB).
Rita H. R. Branco, Mariana S. T. Amândio, Luísa S. Serafim, Ana M. R. B. Xavier   +3 more
doaj   +1 more source

Bleached kraft pulp production from Pinus tecunumanii (Eguiluz e Perry) Produção de polpa kraft branqueada de Pinus tecunumanii (Eguiluz e Perry)

Revista Árvore, 2005
The use of 12-year-old Pinus tecunumanii (Eguiluz e Perry) grown in Colombia was evaluated for bleached kraft pulp production. Kraft pulps of kappa number 30 ± 1 were produced, and oxygen delignified and bleached to 90% ISO with ECF processes.
Leonel F. Torres, Roberto Melo, Jorge Luiz Colodette   +2 more
doaj   +1 more source