Results 21 to 30 of about 280,068 (258)

The Limits of Delignification in Kraft Cooking

open access: yesBioResources, 2017
The perspective of the article is to explore kraft cooking at the limits of delignification, i.e. what degree of delignification is needed to obtain fibre liberation and what is the maximum degree of delignification possible in the kraft pulping stage ...
Elisabet Brännvall
doaj   +1 more source

User Interface and RF-Front End Design for Radio Direction Finding-Miniature Unmanned Air Vehicles (RDF-MUAV) [PDF]

open access: yes, 2020
Radio direction finding perform better at high altitude due to greater line of sight coverage. In this paper, the radio direction finding-miniature unmanned air vehicles (RDF-MUAVs) platform able to localize the beacon by accessing the direction of ...
A. Majid, Huda   +3 more
core   +1 more source

Impact of sulfidity on the kraft pulping of eucalyptus

open access: yes, 2020
This study aimed to evaluate the influence of white liquor sulfidity on the efficiency of the kraft pulping process. For this study, Eucalyptus spp. chips were used.
R. Gomes, F. G. D. S. Júnior
semanticscholar   +1 more source

Nonconventional Ca(OH) 2 treatment of bamboo for the reinforcement of cement composites [PDF]

open access: yes, 2020
This study compares the structural and morphological changes in Guadua angustifolia Kunth (GAK) fiber prepared in three different ways (chips, barkless and crushed) when non-conventional alkaline treatment is applied.
Ganjian, Esmaiel   +2 more
core   +1 more source

Replacement of softwood kraft pulp with ECF-bleached bamboo kraft pulp in fine paper

open access: yesBioResources, 2010
Non-wood fibers such as bamboo and wheat straw have been playing important roles in the pulp and paper industry in China. In this study an ECF-bleached bamboo kraft pulp was compared with a bleached softwood kraft pulp (NBSK) as the reinforcement pulp in fine paper production.
Guanglei Zhao   +4 more
openaire   +2 more sources

Improvements in pulp properties by alkali preextraction and subsequent kraft pulping with controlling H-factor and alkali charge [PDF]

open access: yesBioResources, 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  

Application of Alkaline Ionic Liquids in the Pretreatment Process of Eucalyptus Kraft Pulping

open access: yesBioResources, 2016
In order to explore the potential application of green solvent ionic liquids (ILs) in the kraft pulping process, eucalyptus wood was pretreated by [Mmim]DMP before normal pulping.
Yi Hou   +4 more
doaj   +1 more source

China’s High-yield Pulp Sector and Its Carbon Dioxide Emission: Considering the Saved Standing Wood as an Increase of Carbon Storage

open access: yesBioResources, 2014
The production of high-yield pulp in China has increased significantly in recent years. The well-known advantages of this type of pulp include low production cost, high opacity, and good paper formation.
Yanhong Gao, Jing Shen, Qun Li
doaj   +1 more source

INVESTIGATION OF PROPERTIES OF ETHANOL-ALKALI, KRAFT AND SODA PULPS PREPARED FROM WHEAT STRAW [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2006
Global concerns for preservation of forests and elimination of pollution from pulping and papermaking processes has led us to explore alternate fibrous resources other than wood and new environmentally begin pulping and bleaching processes for ...
Saeed Mahdavi   +2 more
doaj   +1 more source

Lignin engineering in forest trees [PDF]

open access: yes, 2019
Wood is a renewable resource that is mainly composed of lignin and cell wall polysaccharides. The polysaccharide fraction is valuable as it can be converted into pulp and paper, or into fermentable sugars.
Alvarenga Chanoca, Alexandra   +2 more
core   +1 more source

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