A5032730165- Lignin and Wood Chemistry
- Advanced Cellulose Research Studies
- Biofuel production and bioconversion
- Enzyme-mediated dye degradation
- Natural Fiber Reinforced Composites
- Plant Gene Expression Analysis
- Catalytic Processes in Materials Science
- Nanocomposite Films for Food Packaging
- Wood Treatment and Properties
- Textile materials and evaluations
Aalto University
2013-2016
Abstract Special oxygen delignification experiments were performed in a differentially operated continuous stirred tank reactor (CSTR). Because the dissolved and alkali concentrations are constant, rate of lignin removal may be determined from content outflow stream measured by UV absorption. The kinetics at different temperatures, pressures caustic on softwood kraft pulps kappa numbers. first order residual [hexenuronic acid (HexA) corrected], follow Langmuir-type behavior for adsorption...
Abstract Pulp was treated with cellulase, and the chemical, physical, optical properties of refined pulps in paper sheets were measured terms degree polymerization cellulose, tensile strength, elongation, burst light scattering, brightness. The thermally for 20 60 min at 225°C presence 1% 75% (v/v) water vapor. cellulase treatment intensified fibrillation fibers reduced specific energy consumption during refining. It demonstrated based on retention value that refining modified water-bonding...
The effects of two pulp pretreatments, impregnation with ascorbic acid (AA) or purified kraft lignin (KL), on bleached refining were investigated by examining and testing handsheets made from these pulps.The AA pretreatment the amplified depolymerization cellulose notably impaired strength properties handsheets.The enhanced upon combination intensive refining.Furthermore, heat treatments (at 225 °C, 30 min, in water vapor atmospheres 1 75% (v/v)) promoted total color difference impregnated...