Hans Theliander

2025

Heterogenous Diffusion and Reaction Model of Kraft Delignification at the Cell Wall Level

2024

Influence of Hardwood Lignin Blending on the Electrical and Mechanical Properties of Cellulose Based Carbon Fibers

2024

Kraft pulping of model wood chips: Local impact of process conditions on hardwood delignification and xylan retention

2024

A comparative study of the cell wall level delignification behaviour of four Nordic hardwoods during kraft pulping

2023

Capillary forces exerted by a water bridge on cellulose nanocrystals: the effect of an external electric field

2023

The influence of transition metal ions on the oxidation of kraft pulp using hydrogen peroxide under mildly acidic conditions

2023

Fouling characteristics of microcrystalline cellulose during cross-flow microfiltration: Insights from fluid dynamic gauging and molecular dynamics simulations

2023

Monitoring Membrane Fouling Using Fluid Dynamic Gauging: Influence of Feed Characteristics and Operating Conditions

2023

On the hydrothermal depolymerisation of kraft lignin using glycerol as a capping agent

2023

Using guaiacol as a capping agent in the hydrothermal depolymerisation of kraft lignin

2023

Kraft cooking of birch wood chips: Differences between the dissolved organic material in pore and bulk liquor

2023

Dissolution of wood components during hot water extraction of spruce

2023

Effect of plasma treatment on electrochemical performance of lignin-based carbon fibers

2023

Electro-assisted filtration of microfibrillated cellulose: the impact of the degree of fibrillation

In situ microstructural evolution of spruce wood during soda pulping using synchrotron X-ray tomography

2022

Physical properties of kraft pulp oxidized by hydrogen peroxide under mildly acidic conditions

Swift Kraft lignin depolymerisation under hydrothermal conditions

2022

Structure of Filter Cakes during the Electroassisted Filtration of Microfibrillated Cellulose

2021

Towards understanding kraft lignin depolymerisation under hydrothermal conditions

2021

Micro/nano-structural evolution in spruce wood during soda pulping

2021

Electroassisted Filtration of Microfibrillated Cellulose: Insights Gained from Experimental and Simulation Studies

Tailoring the physical characteristics of solution blown cellulosic nonwovens by various post-treatments

2021

Dissolution of wood components during hot water extraction of birch

2021

Using Isopropanol as a Capping Agent in the Hydrothermal Liquefaction of Kraft Lignin in Near-Critical Water

2021

The challenge of predicting spinnability: Investigating benefits of adding lignin to cellulose solutions in air-gap spinning

Dewatering microcrystalline cellulose: The influence of ionic strength

2021

Hardwood kraft pulp fibre oxidation using acidic hydrogen peroxide

2021

Disassociated molecular orientation distributions of a composite cellulose–lignin carbon fiber precursor: A study by rotor synchronized NMR spectroscopy and X-ray scattering

Wettability of cellulose surfaces under the influence of an external electric field

2020

Modification of softwood kraft pulp fibres using hydrogen peroxide at acidic conditions

2019

Pretreatment and Cooking of Forest Residues

2019

Differences in Swelling of Chemical Pulp Fibers and Cotton Fibers - Effect of the Supramolecular Structure

Identifying breach mechanism during air-gap spinning of lignin–cellulose ionic-liquid solutions

2019

Microstructures of cellulose coagulated in water and alcohols from 1-ethyl-3-methylimidazolium acetate: contrasting coagulation mechanisms

The effect of pH adjustment on the properties and pressure filtration characteristics of bauxite residue slurries

2019

Mass transport during coagulation of cellulose-ionic liquid solutions in different non-solvents

Predictions of Pair Interaction Potentials between Kraft Lignin Macromolecules in Black Liquors by Utilization of a Modified Poisson−Boltzmann Approach

2019

Acid Precipitation of Kraft Lignin from Aqueous Solutions: The Influence of pH, Temperature, and Xylan

2019

Acid precipitation of kraft lignin from aqueous solutions: the influence of anionic specificity and concentration level of the salt

2019

Mass transport and yield during spinning of lignin-cellulose carbon fiber precursors

Dry-jet wet-spun lignin-based carbon fibre precursors: Phenomena and properties

A STUDY OF KRAFT LIGNIN ACID PRECIPITATION IN AQUEOUS SOLUTIONS USING FOCUSED BEAM REFLECTANCE MEASUREMENT (FBRM (R))

2018

Hydrothermal liquefaction of kraft lignin in sub-critical water: the influence of the sodium and potassium fraction

Hydrothermal Liquefaction of Kraft Lignin in Subcritical Water: Influence of Phenol as Capping Agent

2018

Electroosmotic dewatering of cellulose nanocrystals

Local properties of filter cakes formed from pH-adjusted bauxite residue slurries

Carbohydrate content of black liquor and precipitated lignin at different ionic strengths in flow-through kraft cooking

Improved yield of carbon fibres from cellulose and kraft lignin

2017

Characterization of a dusting lime kiln – A mill study

About structural changes of lignin during kraft cooking and the kinetics of delignification

2017

VARIABILITY IN LIME-MUD FEED RATE INDUCED IN THE LIME-MUD FILTER: CONSEQUENCES AND ACTIONS

Accelerated aging of bio-oil from lignin conversion in subcritical water

Characterization of a dusting lime kiln - A mill study

Diffusion in Ionic Liquid-Cellulose Solutions during Coagulation in Water: Mass Transport and Coagulation Rate Measurements

Hydrothermal pretreatment of wood by mild steam explosion and hot water extraction

Local filtration properties of microcrystalline cellulose: Influence of an electric field

2017

Chemisorption of air CO2 on cellulose: an overlooked feature of the cellulose/NaOH(aq) dissolution system

2017

Thermal stability of low and high Mw fractions of bio-oil derived from lignin conversion in subcritical water

Filtration properties of kraft lignin: The influence of xylan and precipitation conditions

Modelling filtration processes from local filtration properties: The effect of surface properties on microcrystalline cellulose

2017

Development of an efficient route for combined recycling of PET and cotton from mixed fabrics

The Influence of Ionic Strength on the Electroassisted Filtration of Microcrystalline Cellulose

The sorption of monovalent cations onto norway spruce: Model studies using wood flour and LiCl solution

2017

The Development of a Wood-based Materials-biorefinery

Local filtration properties of Kraft lignin: The influence of residual xylan

Effect of pH on Kraft Lignin Depolymerisation in Subcritical Water

2016

Acid hydrolysis of cellulosic fibres: Comparison of bleached kraft pulp, dissolving pulps and cotton textile cellulose

The impact of ionic strength on the molecular weight distribution (MWD) of lignin dissolved during softwood kraft cooking in a flow-through reactor

Lignin separation from kraft black liquor by combined ultrafiltration and precipitation: a study of solubility of lignin with different molecular properties

Storage stability of bio-oils derived from the catatytic conversion of kraft lignin in subcritical water

Parameters Affecting the Cross-Flow Filtration of Dissolved LignoBoost Kraft Lignin

2016

Storage Stability of Bio-oils Derived from the Catalytic Conversion of Softwood Kraft Lignin in Subcritical Water

Using 2D NMR to characterize the structure of the low and high molecular weight fractions of bio-oil obtained from LignoBoost (TM) kraft lignin depolymerized in subcritical water

Local and average filtration properties of kraft softwood lignin

Towards a wood based material biorefinery - A demonstrator

2015

Precipitation of lignin from softwood black liquor: An investigation of the equilibrium and molecular properties of lignin

Local filtration properties of kraft lignin: influence of ligning-carbohydrate complex

Coagulation of EmimAc-cellulose solutions: dissolution-precipitation disparity and effects of non-solvents and cosolvent

Filtration in bio-refineries may imply challenges: Methodology to understand and overcome these challenges

The influence of ionic strength on the local filtration properties of titanium dioxide

Editorial: Cellulose dissolution and regeneration: systems and interactions

Local filtration properties of microcrystalline cellulose

Chemical pretreatment of wood chips: A comparative study of mild steam explosion and hot water extraction

Structural changes in spruce wood during different steps of steam explosion pretreatment

Estimation of the deprotonation degree of phenolic groups on kraft lignin

Subcritical water de-polymerization of Kraft lignin: A process for future biorefineries. Structural characterization of bio-oil and solids

The molecular properties and carbohydrate content of lignins precipitated from black liquor

Production of a pure lignin product, Part 3: Distribution and removal of inorganics from softwood lignin

Extraction of hemicelluloses from fiberized spruce wood

Effects of surface structure on the filtration properties of microcrystalline cellulose

Investigation and Characterization of Lignin Precipitation in the LignoBoost Process

2014

Experimental determination of the diffusion of monovalent cation into wood:Effects of micro-cracks,wood structure,impregnation time and temperature on local concentration profiles

Analyses of wood components in mild steam explosion liquors from spruce

Effect of sodium ion concentration profile during softwood kraft pulping on delignification rate, xylan retention and reactions of hexenuronic acids

2014

The effect of temperature on the catalytic conversion of Kraft lignin using near-critical water

2014

Kraft Lignin Depolymerization in Near-Critical Water: Effect of Changing Co-Solvent

2014

Lignin Structure and Aggregation Behavior in a Two-Component Ionic Liquid Solvent System

Production of a pure lignin product part 2: Separation of lignin from membrane filtration permeates of black liquor

Production of a pure lignin product part 1, distribution and removal of inorganics from Eucalyptus globulus kraft lignin

Combustion properties of reduced-lignin black liquors

2014

Catalytic depolymerisation and conversion of Kraft lignin into liquid products using near-critical water

2014

Solvation behavior of cellulose and xylan in the MIM/EMIMAc ionic liquid solvent system – parameters for small scale solvation

Ice templated and cross-linked xylan/nanocrystalline cellulose hydrogels

2013

Determination of the diffusion of monovalent cations into wood under isothermal conditions based on LiCl impregnation of Norway spruce

Study of the dissolution behavior of wood components in ionic liquid based solutions

2013

Experimental determination of the diffusion of monovalent cation into wood: Effects of temperature and impregnation time on concentration profiles

2013

Fractionation of Technical Lignin: Molecular Mass and pH Effects

Local solidosity of microcrystalline cellulose during dead-end filtration and sedimentation

Impact of ionic strength on delignification and hemicellulose removal during kraft cooking in a small-scale flow-through reactor

2013

Preparation of Absorbent Foam Based on Softwood Kraft Pulp: Advancing from Gram to Kilogram Scale

High Temperature TEMPO Oxidation in a Heterogeneous Reaction System: An Investigation of Reaction Kinetics, Pulp Properties, and Disintegration Behavior

Investigation of skin formation during filtration of micro crystalline cellulose

Focused Beam Reflectance Measurements (FBRM) for in‐situ characterization of wood components in solid‐liquid dispersions

Mild steam explosion followed by kraft cooking and oxygen delignification of spruce (Picea abies)

2013

A comparison of softwood and birch kraft pulp fibers as raw materials for production of TEMPO-oxidized pulp, MFC and superabsorbent foam

Production of a pure lignin product, part 1: Distribution and removal of inorganics in eucalyptus globulus kraft lignin

Catalytic Depolymerisation and Conversion of Kraft Lignin to Liquid Products Using Near-Critical Water

Filtration properties and skin formation of micro-crystalline cellulose

2012

Mild Steam Explosion and Chemical Pre-Treatment of Norway Spruce

2012

Reinforced absorbent material: a cellulosic composite of TEMPO-oxidized MFC and CTMP fibres

Nanoreinforced xylan-cellulose composite foams by freeze-casting

Ice templated xylan-nanocrystalline cellulose aero/hydrogels

2012

Absorbent materials based on kraft pulp: Preparation and material characterization

On the local filtration properties of microcrystalline cellulose during dead-end filtration

Mild steam explosion: A way to activate wood for enzymatic treatment, chemical pulping and biorefinery processes

2012

Experimental determination of the diffusion of monovalent cation into wood under isothermal conditions

2011

Equilibrium of lignin precipitation

Different sodium ion concentration profiles during kraft cooking -Impact on delignification and carbohydrate removal

Zeta-potential and local filtration properties: Constitutive relationships for TiO(2) from experimental filtration measurements

Kraft delignification - Recent findings regarding the impact of non-reacting ions in the cooking liquor

Local filtration properties for hard-to-filter compressible materials

Pyrolysis oils from CO2 precipitated Kraft lignin

Extraction of hemicelluloses after chemical pretreatment combined with mild steam explosion

Characterization of spruce wood chips after mild steam explosion

2011

Filtration of Lignin from a Lignocellulose-Based Ethanol Pilot Plant

Filtration of lignin from a lignocellulose based ethanol pilot plant

The lignoboost process: Solubility of lignin

The effect of ionic strength on the kinetics of the kraft pulping of softwood

Characterization of CO2 precipitated Kraft lignin to promote its utilization

White liquor production: A comparison of the causticizing stages using gasifier and recovery boiler produced green liquor

Xylan sorption kinetics at industrial conditions Part 1. Experimental results

Correlations for the viscosity of lignin lean black liquor

Filtration of lignin from lignocellulose based ethanol production

Xylan sorption kinetics at industrial conditions Part 2. Modeling

Application of the pitzer method in estimating the properties of black liquor solutions - A summary

The influence of hemicelluloses during the precipitation of lignin in kraft black liquor

The recovery of cooking chemicals: The white liquor preparation plant

Influence of experimental parameters on local and filtrate properties of kraft pulp displacement washing

Changes in viscosity and boiling point elevation of black liquor when a fraction of lignin is removed - consequences in the evaporation stage

Recovery of cooking chemicals: The treatment and burning of black liquor

Impact of dissolved sodium salts on kraft cooking reactions

Using the Pitzer method to estimate the boiling point rise in black liquor solutions

Can the delignification rate be affected by previously applied cooking conditions?

Fractionation of processed spruce wood obtained in the production of ethanol

An investigation of process parameters during lignin precipitation from kraft black liquors: a step towards an optimised precipitation operation

Optimal Industrial Birch Black Liquor for Xylan Sorption

Towards a general kraft delignification model

Controlled exchange of cooking liquor compositions during cooking: Effect on delignification and degradation reactions of carbohydrates

Various dissolved sodium salts in kraft cooking liquors - Influence on cooking kinetics

Lignin from hardwood black liquor - a combination of membrane filtration and LignoBoost technique for improved process capacity and lignin quality

Assessment of reaction kinetic models describing delignification fitted to well-defined kraft cooking data

Influence of hemicelluloses during precipitation of lignin from kraft black liquor

Effect of Pulping Conditions on the Rates of Formation and Degradation of Hexenuronic Acid in Scots Pine

Xylan sorption kinetics for industrial applications

Solubility and Solid-Phase Composition in Na2CO3-Na2SO4 Solutions at Boiling Temperature: A Modeling Approach

Withdrawing lignin from black liquor by precipitation, filtration and washing

Pitzer method for estimating the boiling point rise in black liquor solutions

Boiling Point Rise Calculations in Sodium Salt Solutions

Ways to increase the knowledge of mechanisms during alkaline cooking

Evaluating two test methods used for characterizing leaching properties

The compression of pulp before and during brown stock washing - Its influence on fibre properties

Solubility and solid phase composition in boiling-temperature Na2CO3.Na2SO4 solutions - A modelling approach

Model for solubility and solid-phase composition in high-temperature Na2CO3-Na2SO4 solutions

Filtration properties of lignin precipitated from black liquor

A New Experimental Technique for Determining Local Dispersion Coefficient in Displacement Washing

Kinetic modelling of (galacto)glucomannan degradation during alkaline cooking of softwood

Properties of lignin depleted black liquor and sulphur content in lignin

Precipitation and filtration of lignin from black liquor of different origin

Reaction kinetics of softwood kraft delignification –General considerations and experimental data

Investigating the influence of pulp types on washing using a new measurement technique

Effect of precipitation conditions on properties of lignin from lignoboost process

Treatment process for MSW combustion fly ash, laboratory and pilot plant experiments

Lignoboost: a novel process for extraction of lignin as biofuel from the kraft paper pulp process

Sustainable use of bio-fuel by recycling ash to the forests: Treatment of biofuel ash

Investigating the influence of bed structure on pulp displacement washing using an in-situ measurement technique

Modification of precipitated kraft lignin through the addition of calcium - Reduction of SO2 emissions

A novel method for washing lignin precipitated from kraft black liquor - Laboratory trials

Experimental Investigation of black liquor pyrolysis using single droplet TGA

Degradation/dissolution of softwood hemicellulose during alkaline cooking at different temperatures and alkali concentrations

Validation of predicted local profiles in cake filtration

The lignoboost process - Comments on key-operations

Effect of precipitation conditions on properties of lignin from the LignBoost process

Evaluating Reaction Kinetic Models Using Well-Defined Kraft Delignification Data

An improved method for washing lignin precipitated from kraft black liquor - the key to a new biofuel

Lignin precipitation from kraft black liquors: kinetics and carbon dioxide absorption

Investigating the influence of bed structure on pulp washing using a novel measurement technique

Kinetics of formation and degradation of hexenuronic acid in

Removal of metal ions from wood chips during acidic leaching 2: Modeling leaching of calcium ions from softwood chips

Kinetics of delignification under constant kraft cooking conditions

Washing lignin precipitated from kraft black liquor

A Master´s Programme in Environmentally Sustainable Process Technology

Pressure and concentration profiles in filter cake consisting of core/shell latex particle

Towards a ”Smart Growth” Strategy for Sustainable Development

Removal of metal ions from wood chips during acidic leaching 1: Comparison between Scandinavian softwood, birch and eucalyptus

Viscosity and boiling point elevation of black liquor: consequences when lignin is extracted from the black liquor

2. Modification of precipitated kraft lignin through the addition of calcium – reduction of SO2 emission.

Process Efficiency with Entropy -The Recovery Cycle in the Kraft Pulp Process

Use of kraft recovery cycle residues in mineralization of forest- Controlling leaching rates of easily/limited soluble species

Conversion of sulfur during pressurized pyrolysis and gasification of black liquor with direct causticization using titanates

Second-law Analysis Applied to a Kraft Pulp Mill

Recycling of Solid Residues to the Forest: Experimental and theoretical study of the release of sodium from lime mud and green liquor dregs aggregates

Mass and energy balances for a conventional recovery cycle and for a recovery cycle using borate or titanates

Filtration properties of lignin precipitated from black liquor

“Environmentally Sustainable Process Technology” An international Master’s programme at Chalmers University of Technology, Sweden: Experiences from the start up, realisation and evaluation of a new education in Sweden

The leaching of NaOH from 4:5-sodium-titanate produced in an autocausticization process: Kinetics and Equilibrium

Displacement washing of lime mud: tailing effects

An experimental and numerical study of the turbulent flow behavior in the near wall and bottom regions in an axially stirred vessel.

Displacement washing of lime mud