Results 41 to 50 of about 15,534 (146)

Precipitation of Lignin from Softwood Black Liquor: An Investigation of the Equilibrium and Molecular Properties of Lignin

BioResources, 2015
Extracting lignin from black liquor is an attractive option in modern pulp mills as a unit process for a combined biorefinery. The lignin obtained can be utilized as solid fuel or other high-value added products.
Weizhen Zhu, Hans Theliander
doaj   +1 more source

Hydrothermal processing of Kraft lignin for carboxylic acid production [PDF]

Journal of Environmental Chemical Engineering, 2019
This work was supported by the Employment, Industry and Tourism Office of Principality of Asturias (Spain) [project GRUPIN IDI/2018/000127]; the Spanish Ministry of Economy and Competitiveness (MINECO) [Project CTM2015-63864-R]; and FEDER funds from the European Union.
Lucía Pola, Sergio Collado, Paula Oulego, Mario Díaz   +3 more
openaire   +2 more sources

Impact of lignin and carbohydrate chemical structures on degradation reactions during hardwood kraft pulping processes [PDF]

BioResources, 2013
Most studies aimed at determining rates of hardwood delignification and carbohydrate degradation have focused on understanding the behavior of a single wood species.
Ricardo B. Santos, Hasan Jameel, Hou-min Chang, Peter W. Hart   +3 more
doaj  

Cinética da remoção dos extrativos da madeira de Eucalyptus grandis durante polpação Kraft = Kinetics of the removal of Eucalyptus grandis wood extractives during Kraft pulping

Acta Scientiarum: Technology, 2010
O trabalho teve por objetivo estudar a cinética da remoção dos extrativos da madeira de Eucalyptus grandis durante polpação Kraft. As polpações foram efetuadas em reatores tubulares de aço, usando-se madeira na forma de serragem nas seguintes condições ...
Camila Sarto, Cláudio Angeli Sansigolo
doaj  

Enhancing dissolving pulp quality of mixed raw materials through pre-hydrolysis kraft-cooking: A study on Acacia crassicarpa and Terminalia catappa

Communications in Science and Technology
Acacia crassicarpa wood is widely used in Indonesia as a raw material for dissolving pulp (DP) by the kraft-cooking process. Given that Indonesia has a rich variety and abundance of cellulose-rich wood, it is deemed crucial to research alternative raw ...
Yusnimar Sahan, Sri Wahdini Rahmi, Evelyn, Syamsu Herman, Chairul, Khairat, Hiroshi Ohi, Amun Amri   +7 more
doaj   +1 more source

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

BioResources, 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, Chao Liu, Junxin Xu, Youming Li, Songqing Hu   +4 more
doaj   +1 more source

PACT? process for treatment of kraft mill effluent

Water Science and Technology, 1997
The PACT TM process (powdered activated carbon addition to the activated sludge process) was evaluated for the treatment of Kraft pulp mill wastewater in a series of bench scale experiments. Possibly due to the relatively low strength wastewater, the PACT TM process with carbon doses between 0.5 and 1.0 g/L of influent only performed marginally ...
openaire   +1 more source

ESTUDO DA ADIÇÃO DA LIGNINA KRAFT NAS PROPRIEDADES MECÂNICAS DOS BRIQUETES DE RESÍDUOS DA INDÚSTRIA MOVELEIRA

Ciência Florestal, 2017
In order to improve global effectiveness of energy production, a strategy is the model of bio-refineries in which all the components of biomass are totally used to produce a range of products with aggregated value.
Adriana de Fátima Gomes Gouvêa, Ana Márcia Macedo Ladeira Carvalho, Cláudio Mudadu Silva, Angélica de Cássia Oliveira Carneiro, Paulo Fernando Trugilho, Fabiana Paiva de Freitas, Lumena Boroni Valadares, Claudia Marcia Gomes, Emerson Belarmino Costa   +8 more
doaj  

Optimising Energy Recovery in Hydrothermal Liquefaction of Radiata Pine and Kraft Mill Black Liquor

Chemical Engineering Transactions, 2018
The aim of this paper is to develop a heat exchanger network for hydrothermal liquefaction that is co-located with an existing Kraft pulp mill. Hydrothermal Liquefaction (HTL) is an energy-intensive process that operates at high temperature and pressure.
Benjamin H. Y. Ong, Timothy G. Walmsley, Martin J. Atkins, Michael R. W. Walmsley, James R. Neale, Petar S. Varbanov   +5 more
doaj   +1 more source

Catalyst-Free Depolymerization of Methanol-Fractionated Kraft Lignin to Aromatic Monomers in Supercritical Methanol

Energies
Lignin is considered a renewable source for the production of valuable aromatic chemicals and liquid fuel. Solvent depolymerization of lignin is a fruitful strategy for the valorization of lignin.
Shubho Ghosh, Masud Rana, Jeong-Hun Park
doaj   +1 more source