Results 21 to 30 of about 3,990 (212)

Detailed Modeling of Kraft Pulping Chemistry. Delignification [PDF]

open access: yes, 2020
This work introduces a phenomena-based model for delignification in the kraft pulping process. The solubilization of lignin is described as a set of chemical reactions representing the entire chemistry of lignin degradation as well as dissolution of the ...
Kuitunen, S,   +14 more
core   +3 more sources

Ecofriendly Organosolv Process for Pulping of Tender Coconut Fibre

open access: yesCORD, 2015
The huge biomass generated by vendors of tender coconut is the broken husks refuse dumped along roads and highways in Kerala. These dumps become breeding grounds for diseased causing germs and carrier mosquitoes causing threat to human life.
Jincy P.J.   +2 more
doaj   +1 more source

Ozone Bleaching of Kraft Pulp

open access: yesJAPAN TAPPI JOURNAL, 1997
Recently, one of the greatest concerns of the world wide pulp and paper industries has been organo-chloro compounds discharged from bleach plants which use chlorine based bleaching chemicals. Although there are some debates on toxicities of organo-chloro compounds, we can find a distinct tendency in developing kraft pulp bleaching technologies which ...
Magara, Kengo   +2 more
openaire   +2 more sources

Chemistry of Kraft Pulping and Pulp Bleaching

open access: yesJAPAN TAPPI JOURNAL, 2000
Chemistry of kraft pulp production was summarized from considering recent environmental plans. Levels of dioxins and chloroform emission in regulations were shown first, and then chemical feature of lignin, reactions of lignin and carbohydrates during kraft pulping, structure of residual lignin in pulp, reactions of chlorine and chlorinated chemicals ...
openaire   +2 more sources

A Mechanistic Study of Bio‐Based Nanotemplated Carbon Nanofibers Derived From Water Processable Lignin Blends for Sustainable Energy Storage Applications

open access: yesAdvanced Materials, EarlyView.
As‐spun carbon materials produced from Lignosulfonate, gelatin, and alginate, selected for water solubility, and ability to produce templated sustainable carbon nanostructures. Gelatin and alginate are sacrificial during thermal processing, allowing the production of engineered high surface area nanostructures, which are further characterized for ...
Judith Miralda‐Jalle   +6 more
wiley   +1 more source

Modelagem e simulação da polpação kraft antraquinona [PDF]

open access: yes, 2000
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Química.Em indústrias de celulose, o processo dominante é a polpação Kraft.
Georg, Ivan Carlos
core  

Physicochemical, water, thermal and mechanical properties of cellulosed-based Kraft paper produced from five Malaysian bamboo species

open access: yesCarbohydrate Polymer Technologies and Applications
This study focuses on the chemical composition, physicochemical properties, water-holding capacity, thermal behaviour, and physical and mechanical characteristics of native bamboo species in Malaysia.
H.S.N. Hawanis   +7 more
doaj   +1 more source

Improving Pulping Performance as Well as Reducing Consumption and Increasing Efficiency via Microbial Consortium Pretreating Bamboo

open access: yesFermentation, 2023
The bio-refining process of bamboo is more challenging compared to wood due to its dense and stabilized complex polymer structure, as well as its abundance of degradation-resistant components. Consequently, the bio-refining of bamboo requires more energy
Chun Liu   +5 more
doaj   +1 more source

Dual‐Functional Sulfonated Nanocellulose for Proton Exchange Membranes With High Proton Conductivity at Low Humidity

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A scalable dual‐functional strategy yields simultaneously sulfonated and nanosized cellulose for proton exchange membranes with continuous hydrogen‐bond networks. These sustainable membranes exhibit low‐humidity proton conductivity twofold higher than Nafion 212, providing a robust solution for next‐generation fuel cells.
Nan Li   +6 more
wiley   +1 more source

Sulfite Treatments in RDH and Kraft Pulping [PDF]

open access: yes, 2003
This research is divided into two parts. First was sodium sulfite as a treatment agent in RDH and kraft pulping. Second was sodium sulfide as a treatment agent in modified kraft pulping.
Singh, Ajai
core  

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