Henrik Thunman

2024

Method development and evaluation of product gas mixture from a semi-industrial scale fluidized bed steam cracker with GC-VUV

2023

Fluidized bed steam cracking of rapeseed oil: exploring the direct production of the molecular building blocks for the plastics industry

2023

Decarbonising the iron and steel industries: Production of carbon-negative direct reduced iron by using biosyngas

2023

Plant and system-level performance of combined heat and power plants equipped with different carbon capture technologies

2023

Comparing bed materials for fluidized bed steam cracking of high-density polyethylene: Olivine, bauxite, silica-sand, and feldspar

2023

Correlations between product distribution and feedstock composition in thermal cracking processes for mixed plastic waste

2023

A comparative exergy-based assessment of direct air capture technologies

2023

Developing a parametric system model to describe the product distribution of steam pyrolysis in a Dual Fluidized bed

2023

Thermochemical Energy Storage with Integrated District Heat Production—A Case Study of Swede

2023

Thermochemical recycling of tall oil pitch in a dual fluidized bed

2023

Effect of biomass ash on preventing aromatization of olefinic cracking products in dual fluidized bed systems

2022

Achieving Adequate Circulation in Chemical Looping Combustion─Design Proposal for a 200 MWth Chemical Looping Combustion Circulating Fluidized Bed Boiler

2022

Unraveling the hydrocracking capabilities of fluidized bed systems operated with natural ores as bed materials

2022

Thermochemical recycling of plastics – Modeling the implications for the electricity system

2022

Co-recycling of natural and synthetic carbon materials for a sustainable circular economy

2022

Thermochemical conversion of polyethylene in a fluidized bed: Impact of transition metal-induced oxygen transport on product distribution

2021

Mapping the effects of potassium on fuel conversion in industrial-scale fluidized bed gasifiers and combustors

2021

Development of Oxygen Transport Properties by Olivine and Feldspar in Industrial-Scale Dual Fluidized Bed Gasification of Woody Biomass

2021

Steam gasification of biomass – Typical gas quality and operational strategies derived from industrial-scale plants

Future applications of circulating fluidized-bed technology

2021

Investigation of steam regeneration strategies for industrial-scale temperature-swing adsorption of benzene on activated carbon

2021

Production of negative-emissions steel using a reducing gas derived from dfb gasification

Industrial-scale benzene adsorption: assessment of a baseline one-dimensional temperature swing model against online industrial data

A fast-solving particle model for thermochemical conversion of biomass

2020

Dual Fluidized Bed Gasification Configurations for Carbon Recovery from Biomass

Magnetic separation of ilmenite used as oxygen carrier during combustion of biomass and the effect of ash layer buildup on its activity and mechanical strength

2020

Effects of bed aging on temperature signals from fixed-bed adsorbers during industrial operation

2020

Shedding light on the governing mechanisms for insufficient CO and H2 burnout in the presence of potassium, chlorine and sulfur

Methane synthesis

Impacts of Bed Material Activation and Fuel Moisture Content on the Gasification Rate of Biomass Char in a Fluidized Bed

The gobigas plant

Self‐Cleaning Surfaces for Heat Recovery During Industrial Hydrocarbon‐Rich Gas Cooling: An Experimental and Numerical Study

2019

Circular use of plastics-transformation of existing petrochemical clusters into thermochemical recycling plants with 100% plastics recovery

Thermochemical Recycling of Automotive Shredder Residue by Chemical-Looping Gasification Using the Generated Ash as Oxygen Carrier

Bark as feedstock for dual fluidized bed gasifiers. Operability, efficiency, and economics

2019

Economic assessment of advanced biofuel production via gasification using cost data from the GoBiGas plant

2018

Advanced biofuel production via gasification – lessons learned from 200 man-years of research activity with Chalmers’ research gasifier and the GoBiGas demonstration plant.

Upscaling Effects on Char Conversion in Dual Fluidized Bed Gasification

Comparing the structural development of sand and rock ilmenite during long-term exposure in a biomass fired 12 MWth CFB-boiler

Detailed simulations of heterogeneous reactions in porous media using the Lattice Boltzmann Method

2018

A Scale-Up Project for Operating a 115 MWth Biomass-Fired CFB boiler with Oxygen Carriers as Bed Material

2018

Influence of in-bed catalysis by ash-coated olivine on tar formation in steam gasification of biomass

Effect of ash circulation on the performance of a dual fluidized bed gasification system

2018

Bed material as a catalyst for char gasification: The case of ash-coated olivine activated by K and S addition

Valorization of Automobile Shredder Residue Using Indirect Gasification

Mechanism for Migration and Layer Growth of Biomass Ash on Ilmenite Used for Oxygen Carrier Aided Combustion

Fate of Polycyclic Aromatic Hydrocarbons during Tertiary Tar Formation in Steam Gasification of Biomass

2018

GoBiGas demonstration – a vital step for a large-scale transition from fossil fuels to advanced biofuels and electrofuels

Finely resolved numerical simulations of reactive flow in porous media

Two-phase flow patterns and condensation on wetted surfaces for innovative self-cleaning heat exchangers: experiments and numerics

Applicability of a kinetic model for catalytic conversion of tar and light hydrocarbons using process-activated ilmenite

Skoglig bioenergi central i klimatarbetet

Control of the solids retention time by multi-staging a fluidized bed reactor

12,000 Hours of Operation with Oxygen-Carriers in Industrially Relevant Scale (75,000 kWth).

Experience of more than 1000 h of operation with oxygen carriers and solid biomass at large scale

Validation of the oxygen buffering ability of bed materials used for OCAC in a large scale CFB boiler

Volatile gases from biomass pyrolysis under conditions relevant for fluidized bed gasifiers

A conversion-class model for describing fuel conversion in large-scale fluidized bed units

Comparing the structural development of sand and rock ilmenite during long-term exposure in a biomass fired 12 mWthCFB-boiler

Packed-Bed Reactor Characterization of Steam-Regenerated Solvent Adsorbers for Raw-Gas Cleaning

The role of fuel mixing on char conversion in a fluidized bed

2017

Efficiency Comparison of Large-Scale Standalone, Centralized, and Distributed Thermochemical Biorefineries

Selective oxidation processes for ultra-efficient fuel and waste conversion, materials recycling, gas synthesis and processing.

Mass transfer under segregation conditions in fluidized beds

2017

Performance of large-scale biomass gasifiers in a biorefinery, a state-of-the-art reference

Recirculation of reactive fines – an optimization strategy for existing dual fluidized bed gasification systems

Gasification Reaction Pathways of Condensable Hydrocarbons

Göteborg Energi: Vehicle Fuel From Organic Waste

Improved syngas processing for enhanced Bio-SNG production: A techno-economic assessment

2016

Influence of Surrounding Conditions and Fuel Size on the Gasification Rate of Biomass Char in a Fluidized Bed

Well-to-wheel analysis of bio-methane via gasification, in heavy duty engines within the transport sector of the European Union

Terahertz Spectroscopy Instrumentation for Thermal Bio-Mass Conversion

Influence of Fuel Ash Characteristics on the Release of Potassium, Chlorine, and Sulfur from Biomass Fuels under Steam-Fluidized Bed Gasification Conditions

Process Simulation of Dual Fluidized Bed Gasifiers Using Experimental Data

Understanding the start-up- knowledge transfer from bed material testing at Chalmers to the operation of the gobigas gasification unit

Impact of Biomass Ash-Bauxite Bed Interactions on an Indirect Biomass Gasifier

Use of Alkali-Feldspar as Bed Material for Upgrading a Biomass-derived Producer Gas from a Gasifier

Mechanism and Kinetic Modeling of Catalytic Upgrading of a Biomass-Derived Raw Gas: An Application with Ilmenite as Catalyst

The role of fuel mixing on char conversion in a fluidized bed

2016

Comparing Active Bed Materials in a Dual Fluidized Bed Biomass Gasifier: Olivine, Bauxite, Quartz-Sand, and Ilmenite

Importance of Decomposition Reactions for Catalytic Conversion of Tar and Light Hydrocarbons: An Application with an Ilmenite Catalyst

2015

Challenges and opportunities in the Eulerian approach to numerical simulations of fixed-bed combustion of biomass

2015

Transforming the energy system in Västra Götaland and Halland – linking short term actions to long term goals

2015

Impact of oxygen transport on char conversion in dual fluidized bed systems

2015

Experimental Investigation of Volatiles-Bed Contact in a 2-4 MWth Bubbling Bed Reactor of a Dual Fluidized Bed Gasifier

Diversity of chemical composition and combustion reactivity of various biomass fuels

Characteristics of olivine as a bed material in an indirect biomass gasifier

Production of Activated Carbon within the Dual Fluidized Bed Gasification Process

Experimental and Numerical Investigation of the Dynamics of Loop Seals in a Large-Scale DFB System under Hot Conditions

Using a manganese ore as catalyst for upgrading biomass derived gas

2015

Conversion of Condensable Hydrocarbons in a Dual Fluidized Bed Biomass Gasifier

2015

Monitoring the Bed Material Activation in the GoBiGas-Gasifier

2015

Behaviour of biomass particles in a large scale (2-4MWth) bubbling bed reactor

2015

Design of an integrated dryer and conveyor belt for woody biofuels

Ash Properties of Ilmenite Used as Bed Material for Combustion of Biomass in a Circulating Fluidized Bed Boiler

Investigation of Natural and Synthetic Bed Materials for Their Utilization in Chemical Looping Reforming for Tar Elimination in Biomass-Derived Gasification Gas

2014

Process activated ilmenite as catalyst for cleaning of biomass producer gas

Effects of Steam on the Release of Potassium, Chlorine, and Sulfur during Char Conversion, Investigated under Dual-Fluidized-Bed Gasification Conditions

Co-Feeding of Natural Gas in Pyrolysis Plants Producing Biofuels - GHG Savings and Economic Impact

2014

Process activated ilmenite as catalyst for cleaning of biomass producer gas

2014

Advanced Gas Cleaning using Chemical-Looping Reforming (CLR)

Using Ilmenite To Reduce the Tar Yield in a Dual Fluidized Bed Gasification System

2014

A 1-dimensional model of indirect biomass gasification in a dual fluidised bed system

Terahertz Gas Spectrometer

Online Measurement of Elemental Yields, Oxygen Transport, Condensable Compounds, and Heating Values in Gasification Systems

Method for online measurement of the CHON composition of raw gas from biomass gasifier

Terahertz Spectroscopy for Real-Time Monitoring of Water Vapor and CO Levels in the Producer Gas From an Industrial Biomass Gasifier

Using a manganese ore as catalyst for upgrading biomass derived gas

The effect of oxygen transport by catalytic bed materials in biomass gasification

Evaluation of Performance of Industrial-Scale Dual Fluidized Bed Gasifiers Using the Chalmers 2–4-MWth Gasifier

Assessment of the Solid-Phase Adsorption Method for Sampling Biomass-Derived Tar in Industrial Environments

Measurment of Gas Flow and Carbon Conversion in Chalmers 2-4MWth DFB Gasifier

CFD simulations of biofuel bed conversion: A submodel for the drying and devolatilization of thermally thick wood particles

Ilmenite and Nickel as Catalysts for Upgrading of Raw Gas Derived from Biomass Gasification

Bio-SNG Production via Gasification - Process Integration Aspects for Improving Process Performance

Single particle modelling for implementation into CFD

Using an oxygen-carrier as bed material for combustion of biomass in a 12-MWth circulating fluidized-bed boiler

Transforming and Release of Potassium, Chlorine, and Sulfur from Wheat Straw under Conditions Relevant for Dual Fluidized Bed Gasification

Transformation and Release of Potassium, Chlorine, and Sulfur from Wheat Straw under Conditions Relevant to Dual Fluidized Bed Gasification

A computationally efficient particle submodel for CFD-simulations of fixed-bed conversion

Experiences from the first 5 years of operation in Chalmers gasifier

Online Detection of H2O and CO in the Humid Raw Gas from the Gasifier Using Terahertz Spectroscopy

2013

Exergy-based comparison of indirect and direct biomass gasification technologies within the framework of bio-SNG production

Comparing three materials for secondary catalytic tar reforming of biomass derived gas

Development of a particle submodel for CFD-simulations of fixed-bed combustion

2012

Hydrogen from Biomass Gasification for Utilization in Oil Refineries

Manganese oxide as catalyst for tar cleaning of biomass-derived gas

2012

Fuel Quality Analysis for Biogas Utilization in Heavy Duty Dual Fuel Engines

2012

Fuel Quality Analysis for Biogas Utilization in Heavy Duty Dual Fuel Engines

Use of Nickel Oxide as a Catalyst for Tar Elimination in a Chemical-Looping Reforming Reactor Operated with Biomass Producer Gas

2012

Extending existing combined heat and power plants for synthetic natural gas production

On-line monitoring of fuel moisture-content in biomass-fired furnaces by measuring relative humidity of the flue gases

Dual fluidized bed system for sulphur removal from biomass derived product gas

Measures to Reduce Grate Material Wear in Fixed-Bed Combustion

Characterization and prediction of biomass pyrolysis products

Continuous Catalytic Tar Reforming of Biomass Derived Gas with Simultaneous Catalyst Regeneration

Producer Gas Cleaning in a Dual Fluidized Bed Reformer using Two Catalysts

CFD modelling of bed shrinkage and channelling in fixed-bed combustion

Chalmers gasification plant - Overview and recent experiences

Energy efficient selective reforming of hydro carbons

Framtida utmaningar att lösa inom förgasning av biomassa

Pilot Gasifier for GoBiGas and Thermochemical Biomass Conversion

Zero-dimensional modeling of indirect fluidized bed gasification

GoBiGas and other gasification activities at Chalmers

Zero‐dimensional modeling of indirect fluidized bed gasification

Chalmers pilot gasifier an overview.

Biomassaförgasning integrerad med kraftvärme - erfarenheter från en demoanläggning i Chalmers kraftcentral

Chalmers gasification plant - Overview and recent experiences

Highly efficient electricity generation from biomass by integration and hybridization with combined cycle gas turbine (CCGT) plants for natural gas

Models for gaseous radiative heat transfer applied to oxy-fuel conditions in boilers

Dual Fluidised Bed for Catalytic Cleaning of Biomass Gas

Evaluation of Fluid Dynamics In a Hot and a Cold System of Interconnecting Fluidised Beds

Tar Cleaning with Chemical Looping Reforming

Biomass Retrofitting a Natural Gas-Fired Plant to a Hybrid Combined Cycle (HCC)

FIRST EXPERIENCES WITH THE NEW CHALMERS GASIFIER

The new Chalmers research-gasifier

Seminarium Förbränning av biobränsle på rost

Process analysis of an oxygen lean oxy-fuel power plant with co-production

Evaluation of fluid dynamics in a hot and a cold system of interconnecting fluidised beds

2008

Integration aspects for synthetic natural gas production from biomass based on a novel indirect gasification concept

Evaluation of gas radiation modelling in oxy-fired furn

Stresses in a Cylindrical Wood Particle Undergoing Devolatilization in a Hot Bubbling Fluidized Bed

Estimation of gas phase mixing in packed beds

Influence of intraparticle gradients in modeling of fixed bed combustion

FÖRBRÄNNING AV BIOBRÄNSLE PÅ ROST

Prediction of gas composition in biomass gasifiers.

A cost effective concept for generation of heat, electricity and transport fuel from biomass in fluidized bed boilers – using existing energy infrastructure

CO-COMBUSTION IN AN OXYFUEL POWER PLANT WITH SYNTHESIS GAS PRODUCTION

Sensitivity Analysis of a Fixed Bed Combustion Model

Inhomogeneous Flow Conditions and Bed Collapse in Fixed-Bed Combustion

Oxyfuel power plant with co-production of DME - A bridging technology

Structural collapses and inhomogeneous flow conditions in fixed-bed conbustion

2006

Solids Distribution and Gas Concentrations in the Furnace of a CFB Boiler during Co-Combustion of Bituminous Coal with Municipal Sewage Sludge

Combustion Disturbances in the Fuel Bed of Grate Furnaces

A model for simulation of fixed bed combustion

Gas composition in a fixed bed of biofuel.

Influence of intra-particle gradients in modelling of fixed bed combustion

2006

Measuring the External Solids Flux in a CFB boiler

Förbränningsförlopp i en bädd av biobränsle III

Reactor residence time analysis with CFD

Matematisk modellering med inriktning på förlopp i biobränsleeldade rostpannor

Seminarium om förbränning av biobränsle på rost

2005

PRODUCTION OF FINES DURING CO-COMBUSTION OF COAL WITH BIOMASS FUELS BY FRAGMENTATION AND ATTRITION

Limitations of the porous medium approximation in modelling of fixed bed combustion

BiofuelGS Annual Report 2005

Influence of size and density of fuel on combustion in a packed bed

Ignition rares in fixed biofuel beds- a model based on combustion front theory

Technology Assesment - new technologies for future energy pathways

Current situation and new technologies for future European energy pathwayes

A CFD simulation of a 31 MW district heating boiler

Combustion Disturbances Related to the Fuel Bed in Grate Furnaces

BiofuelGS annual report

Separation of drying and devolatilization during conversion of solid fuels

Seminarium om omvandling av biomassa i rosteldade eldstäder, 28 sep 2004

Biofuel Combustion

Analysis of the combustion in a 1 to 15 MWth grate fired furnace with low emission of NOx and unburnt

Seminarium om förbränning i rostpannor 12 maj 2004

Some apects concerning the scale up of a downdraft gasifier

Indo-Swedish Workshop on Biofuel Conversion

BIOBRÄNSLEFÖRBRÄNNING Energimyndighetens program för småskalig biobränsleförbränning

Influence of Fuel Size on Combustion in a Packed Bed

Influence of Fuel Density on the Conversion Rate of a Fixed Biofuel Bed Operated in a Counter-Current Mode

Co-current and counter-current fixed bed combustion of biofuel - a comparison

Extractive gas analysis from a burning fixrd brd biofuel bed ---method and measurements

Conversion of biofuels on fixed beds on a grate

Conversion of single fuel particles with special focus on biofuels

Biobränsleförbränning

Combustion of wood particles - a model for Eulerian calculations

Modeling of the combustion front in a countercurrent fuel converter

Erfarenheter från mätningar i, och beräkningar av fliseldade rostpannor

Thermal conductivity of wood - models for different stages of combustion

Combustion of biofuels in a fixed bed - a comparison between model and measurement

Dispersion of Wood Fuel in a Stationary FLuidized Bed Boiler

PDF Modelling of gas phase combustion in grate furnaces.

An estimation of the spatial resolution when measuring gas concentrations inside a converting packed fuel bed

Estimation of Solids Mixing in a Fluidized-Bed Combustor

Combustion process in a biomass fuel bed --experimental results

Principles and Models of Solid Fuel Combustion

Thermal conductivity of wood during different stages of combustion

Combustion processes in a biomass fuel bed - experimental results

Composition of Volatile Gases and Thermochemical Properties of Wood for Modeling of Fixed or Fluidized Beds

Ignition and propagation of a reaction front in cross-current bed combustion of wet biofuels

Ignition and propagation of a reaction front in cross-current bed combustion of wet biofuels

Reduction of nitrogen oxide emissions from wood chip grate furnaces

Reduction of nitrogen oxide emissions from wood chip grate furnaces

Activity 3.1.3 Modelling and verifying experiments on the whole furnace

Comparison between CFD Calculation and Measurement on a Grate Boiler burning Biofuel

Fuel loading of a fluidized bed combustor

Loading and Size Distribution of Fuel in a Fluidised Bed Combustor

Nordic Seminar on Thermochemical Conversion of Solid Fuels

Impact of heat and mass transfer on combustion of a fuel particle in CFB boilers

The Fuel Loading of Fluidized Bed Combustor

Particle loading in a fluidized bed combustor