Publications by Klas Engvall
S. Ding et al., "Time-resolved alkali release during steam gasification of char in a fixed bed reactor," Fuel, vol. 356, pp. 129528, 2024.
E. Farah et al., "Controlling the Activity and Selectivity of HZSM-5 Catalysts in the Conversion of Biomass-Derived Oxygenates Using Hierarchical Structures : The Effect of Crystalline Size and Intracrystalline Pore Dimensions on Olefins Selectivity and Catalyst Deactivation," Topics in catalysis, vol. 66, no. 17-18, pp. 1310-1328, 2023.
Y. Ge et al., "Effect of fresh bed materials on alkali release and thermogravimetric behavior during straw gasification," Fuel, vol. 336, 2023.
F. Li et al., "Energy, Cost, and Environmental Assessments of Methanol Production via Electrochemical Reduction of CO2 from Biosyngas," ACS Sustainable Chemistry and Engineering, vol. 11, no. 7, pp. 2810-2818, 2023.
Y. Ge et al., "Impacts of fresh bed materials on alkali release and fuel conversion rate during wood pyrolysis and char gasification," Fuel, vol. 353, 2023.
Y. Ge et al., "Online monitoring of alkali release during co-pyrolysis/gasification of forest and agricultural waste: Element migration and synergistic effects," Biomass and Bioenergy, vol. 172, pp. 106745-106745, 2023.
S. Ding, E. Kantarelis and K. Engvall, "Potassium-Induced Phenomena and Their Effects on the Intrinsic Reactivity of Biomass-Derived Char during Steam Gasification," ACS Omega, vol. 8, no. 32, pp. 29131-29142, 2023.
M. Rovira Sacie, K. Engvall and C. Duwig, "Sensitivity analysis of an ammonium salt formation model applied to pollutant removal in marine diesel exhaust gases," Fuel, vol. 332, 2023.
Y. Ge et al., "Effects of used bed materials on char gasification : Investigating the role of element migration using online alkali measurements," Fuel processing technology, vol. 238, pp. 107491-107491, 2022.
S. Mesfun, K. Engvall and A. Toffolo, "Electrolysis Assisted Biomass Gasification for Liquid Fuels Production," Frontiers in Energy Research, vol. 10, 2022.
Z. Musavi et al., "Experimental and Numerical Investigation of Flow Field and Soot Particle Size Distribution of Methane-Containing Gas Mixtures in a Swirling Burner," ACS Omega, vol. 7, no. 1, pp. 469-479, 2022.
M. Rovira, K. Engvall and C. Duwig, "Identifying key features in reactive flows : A tutorial on combining dimensionality reduction, unsupervised clustering, and feature correlation," Chemical Engineering Journal, vol. 438, 2022.
Y. Ge et al., "Real-time monitoring of alkali release during CO2 gasification of different types of biochar," Fuel, vol. 327, 2022.
A. Phounglamcheik et al., "CO2 Gasification Reactivity of Char from High-Ash Biomass," ACS Omega, vol. 6, no. 49, pp. 34115-34128, 2021.
M. Rovira, K. Engvall and C. Duwig, "Detailed numerical simulations of low-temperature oxidation of NOx by ozone," Fuel, vol. 303, 2021.
N. Mirzaei et al., "Flexible production of liquid biofuels via thermochemical treatment of biomass and olefins oligomerization : A process study," Chemical Engineering Transactions, vol. 86, 2021.
C. Zhou, C. Rosén and K. Engvall, "Fragmentation of dolomite bed material at pressurized conditions in the presence of H2O and CO2 : Implications for pressurized fluidized bed gasification," Fuel, vol. 285, 2021.
L. C. M. Ruivo et al., "Iron-based catalyst (Fe2-xNixTiO5) for tar decomposition in biomass gasification," Fuel, vol. 300, 2021.
M. Rovira, K. Engvall and C. Duwig, "Proper orthogonal decomposition analysis of the large-scale dynamics of a round turbulent jet in counterflow," Physical Review Fluids, vol. 6, no. 1, 2021.
C. Zhou, P. Yrjas and K. Engvall, "Reaction mechanisms for H2O-enhanced dolomite calcination at high pressure," Fuel processing technology, vol. 217, 2021.
D. T. Pio et al., "Tar formation during eucalyptus gasification in a bubbling fluidized bed reactor : Effect of feedstock and reactor bed composition," Energy Conversion and Management, vol. 229, 2021.
S. Ding, E. Kantarelis and K. Engvall, "Effects of Porous Structure Development and Ash on the Steam Gasification Reactivity of Biochar Residues from a Commercial Gasifier at Different Temperatures," Energies, vol. 13, no. 18, 2020.
C. Zhou, C. Rosén and K. Engvall, "Fragmentation of dolomite bed material at elevated temperature in the presence of H2O & CO2 : Implications for fluidized bed gasification," Fuel, vol. 260, 2020.
C. Zhou, C. Rosén and K. Engvall, "Fragmentation of dolomite bed material at elevated temperature in the presence of H2O & CO2: Implications for fluidized bed gasification," Fuel, vol. 260, pp. 116340, 2020.
A. Pavlenko and K. Engvall, "Hydrocarbon Synthesis During Methane Pyrolysis," Rocznik Ochrona Srodowiska, vol. 22, no. 1, pp. 196-202, 2020.
A. Hernandez et al., "Preferential adsorption of K species and the role of support during reforming of biomass derived producer gas over sulfur passivated Ni/MgAl2O4," Energy & Fuels, vol. 34, no. 9, pp. 11103-11111, 2020.
M. Golda-Cepa et al., "Recent progress on parylene C polymer for biomedical applications : A review," Progress in organic coatings, vol. 140, 2020.
M. Rovira, K. Engvall and C. Duwig, "Review and numerical investigation of the mean flow features of a round turbulent jet in counterflow," Physics of fluids, vol. 32, no. 4, 2020.
F. Montecchio et al., "Fluid dynamics modelling of UV reactors in advanced oxidation processes for VOC abatement applications," Chemical Engineering Journal, vol. 369, pp. 280-291, 2019.
S. Mesfun et al., "Integration of an electrolysis unit for producer gas conditioning in a bio-synthetic natural gas plant," Journal of energy resources technology, vol. 141, no. 1, 2019.
K. Marks et al., "Investigation of the surface species during temperature dependent dehydrogenation of naphthalene on Ni(111)," Journal of Chemical Physics, vol. 150, no. 24, 2019.
F. Montecchio, M. Bäbler and K. Engvall, "Development of an irradiation and kinetic model for UV processes in volatile organic compounds abatement applications," Chemical Engineering Journal, vol. 348, pp. 569-582, 2018.
W. Wan et al., "Experimental and modelling studies on condensation of inorganic species during cooling of product gas from pressurized biomass fluidized bed gasification," Energy, vol. 153, pp. 35-44, 2018.
W. Wan, K. Engvall and Y. Weihong, "Model investigation of condensation behaviors of alkalis during syngas treatment of pressurized biomass gasification," Chemical Engineering and Processing, vol. 129, pp. 28-36, 2018.
Z. Musavi et al., "Modelling and optimization of a small diesel burner for mobile applications," Energies, vol. 11, no. 11, 2018.
W. Wan, K. Engvall and Y. Weihong, "Novel Model for the Release and Condensation of Inorganics for a Pressurized Fluidized-Bed Gasification Process : Effects of Gasification Temperature," ACS Omega, vol. 3, no. 6, pp. 6321-6329, 2018.
M. U. Bäbler et al., "Modeling and pilot plant runs of slow biomass pyrolysis in a rotary kiln," Applied Energy, vol. 207, pp. 123-133, 2017.
M. Ghadami Yazdi et al., "Naphthalene on Ni(111) : Experimental and Theoretical Insights into Adsorption, Dehydrogenation, and Carbon Passivation," The Journal of Physical Chemistry C, vol. 121, no. 40, pp. 22199-22207, 2017.
C. Zhou, C. Rosén and K. Engvall, "Selection of dolomite bed material for pressurized biomass gasification in BFB," Fuel processing technology, vol. 159, pp. 460-473, 2017.
C. Zhou, C. Rosén and K. Engvall, "Selection of dolomite bed material for pressurized biomass gasification in BFB," Fuel processing technology, vol. 167, pp. 511-523, 2017.
F. Montecchio et al., "Surface treatments of metal supports for photocatalysis applications," Applied Surface Science, vol. 401, pp. 283-296, 2017.
C. Zhou, C. Rosén and K. Engvall, "Biomass oxygen/steam gasification in a pressurized bubbling fluidized bed : Agglomeration behavior," Applied Energy, vol. 172, pp. 230-250, 2016.
F. Montecchio et al., "Development of a stagnation point flow system to screen and test TiO2-based photocatalysts in air purification applications," Chemical Engineering Journal, vol. 306, pp. 734-744, 2016.
P. Haghighi Moud et al., "Equilibrium potassium coverage and its effect on a Ni tar reforming catalyst in alkali- and sulfur-laden biomass gasification gases," Applied Catalysis B : Environmental, vol. 190, pp. 137-146, 2016.
Z. S. Musavi, L. J. Pettersson and K. Engvall, "Modeling, Design, and Verification of a Burner for Partial Oxidation of Biomass Product Gas in an Autothermal Reformer," Industrial & Engineering Chemistry Research, vol. 55, no. 36, pp. 9687-9697, 2016.
M. Golda-Cepa et al., "Multifunctional PLGA/Parylene C Coating for Implant Materials : An Integral Approach for Biointerface Optimization," ACS Applied Materials and Interfaces, vol. 8, no. 34, pp. 22093-22105, 2016.
R. Sadegh-Vaziri et al., "A medium-scale 50 MWfuel biomass gasification based bio-SNG plant : A Developed Gas Cleaning Process," Energies, vol. 8, no. 6, pp. 5287-5302, 2015.
M. Golda-Cepa, K. Engvall and A. Kotarba, "Development of crystalline-amorphous parylene C structure in micro-and nano-range towards enhanced biocompatibility : the importance of oxygen plasma treatment time," RSC Advances, vol. 5, no. 60, pp. 48816-48821, 2015.
P. H. Moud et al., "Effect of gas phase alkali species on tar reforming catalyst performance : Initial characterization and method development," Fuel, vol. 154, pp. 95-106, 2015.
M. Golda-Cepa et al., "Microbiological investigations of oxygen plasma treated parylene C surfaces for metal implant coating," Materials science & engineering. C, biomimetic materials, sensors and systems, vol. 52, pp. 273-281, 2015.
L. Norberg Samuelsson et al., "Model-free rate expression for thermal decomposition processes : The case of microcrystalline cellulose pyrolysis," Fuel, vol. 143, pp. 438-447, 2015.
A. V. González Arcos et al., "Promoted RhPt bimetallic catalyst supported on δ-Al2O3 and CeO2-ZrO2 during full-scale autothermal reforming for automotive applications: Post-mortem characterization," Applied Catalysis A : General, vol. 491, pp. 8-16, 2015.
V. Nemanova et al., "Co-gasification of petroleum coke and biomass," Fuel, vol. 117, no. Part A, pp. 870-875, 2014.
M. Golda-Cepa et al., "LDI-MS examination of oxygen plasma modified polymer for designing tailored implant biointerfaces," RSC Advances, vol. 4, no. 50, pp. 26240-26243, 2014.
V. Nemanova and K. Engvall, "Tar Variability in the Producer Gas in a Bubbling Fluidized Bed Gasification System," Energy & Fuels, vol. 28, no. 12, pp. 7494-7500, 2014.
M. Ahmadi, E. E. Svensson and K. Engvall, "Application of Solid-Phase Microextraction (SPME) as a Tar Sampling Method," Energy & Fuels, vol. 27, no. 7, pp. 3853-3860, 2013.
M. Ahmadi et al., "Development of a PID based on-line tar measurement method : Proof of concept," Fuel, vol. 113, pp. 113-121, 2013.
M. Gołda et al., "Oxygen plasma functionalization of parylene C coating for implants surface : Nanotopography and active sites for drug anchoring," Materials science & engineering. C, biomimetic materials, sensors and systems, vol. 33, no. 7, pp. 4221-4227, 2013.
E. Robert et al., "Acoustophoresis in gases : Effect of turbulence and geometrical parameters on separation efficiency," Journal of the Acoustical Society of America, vol. 132, 2012.
M. Cieślik et al., "Engineering of bone fixation metal implants biointerface - Application of parylene C as versatile protective coating," Materials science & engineering. C, biomimetic materials, sensors and systems, vol. 32, no. 8, pp. 2431-2435, 2012.
T. Nordgreen et al., "Iron-based materials as tar depletion catalysts in biomass gasification : Dependency on oxygen potential," Fuel, vol. 95, no. 1, pp. 71-78, 2012.
M. Cieclik et al., "Parylene coatings on stainless steel 316L surface for medical applications - Mechanical and protective properties," Materials science & engineering. C, biomimetic materials, sensors and systems, vol. 32, no. 1, pp. 31-35, 2012.
V. Nemanova et al., "Biomass gasification in an atmospheric fluidised bed : Tar reduction with experimental iron-based granules from Höganäs AB, Sweden," Catalysis Today, vol. 176, no. 1, pp. 253-257, 2011.
T. Liliedahl et al., "Defluidisation of fluidised beds during gasification of biomass," Biomass and Bioenergy, vol. 35, no. SUPPL. 1, pp. S63-S70, 2011.
M. Ahmadi et al., "Development of an on-line tar measurement method based on photo ionization technique," Catalysis Today, vol. 176, no. 1, pp. 250-252, 2011.
M. Cieslik et al., "Silane-parylene coating for improving corrosion resistance of stainless steel 316L implant material," Corrosion Science, vol. 53, no. 1, pp. 296-301, 2011.
K. Engvall et al., "Upgrading of raw gas from biomass and waste gasification : Challenges and opportunities," Topics in catalysis, vol. 54, no. 13-15, pp. 949-959, 2011.
M. Cieślik et al., "Metal release and formation of surface precipitate at stainless steel grade 316 and Hanks solution interface - Inflammatory response and surface finishing effects," Corrosion Science, vol. 51, no. 5, pp. 1157-1162, 2009.
A. Kotarba et al., "High pressure desorption of K+ from iron ammonia catalyst migration of the promoter towards Fe active planes," Catalysis Letters, vol. 95, no. 1-2, pp. 93-97, 2004.
P. B. Monkhouse et al., "Phase discrimination of alkali species in PCFB combustion flue gas using simultaneous monitoring by surface ionisation and photofragmentation fluorescence," Fuel, vol. 82, no. 4, pp. 365-371, 2003.
K. O. Davidsson et al., "A surface ionization instrument for on-line measurements of alkali metal components in combustion : Instrument description and applications," Energy and Fuels, vol. 16, no. 6, pp. 1369-1377, 2002.
M. Zevenhoven-Onderwater et al., "The ash chemistry in fluidised bed gasification of biomass fuels. Part I : Predicting the chemistry of melting ashes and ash-bed material interaction," Fuel, vol. 80, no. 10, pp. 1489-1502, 2001.
M. Hagström, K. Engvall and J. B. C. Pettersson, "Desorption Kinetics at Atmospheric Pressure : Alkali Metal Ion Emission from Hot Platinum Surfaces," Journal of Physical Chemistry B, vol. 104, no. 18, pp. 4457-4462, 2000.
J. Wang, K. Engvall and L. Holmlid, "Cluster KN formation by Rydberg collision complex stabilization during scattering of a K beam off zirconia surfaces," Journal of Chemical Physics, vol. 110, no. 2, pp. 1212-1220, 1999.
K. Engvall, A. Kotarba and L. Holmlid, "Long-range diffusion of K promoter on an ammonia synthesis catalyst surface - Ionization of excited potassium species in the sample edge fields," Journal of Catalysis, vol. 181, no. 2, pp. 256-264, 1999.
A. Kotarba et al., "In situ characterization of an iron catalyst by potassium ion desorption and electron emission measurements," Reaction Kinetics and Catalysis Letters, vol. 63, no. 2, pp. 219-224, 1998.
K. Engvall et al., "Potassium promoter in industrial ammonia synthesis catalyst : Studies by surface ionization," Applied Catalysis A: General, vol. 134, no. 2, pp. 239-246, 1996.
A. Kotarba et al., "Angular resolved neutral desorption of potassium promoter from surfaces of iron catalysts," Surface Science, vol. 342, no. 1-3, pp. 327-340, 1995.
K. Engvall, A. Kotarba and L. Holmlid, "Emission of excited potassium species from an industrial iron catalyst for ammonia synthesis," Catalysis Letters, vol. 26, no. 1-2, pp. 101-107, 1994.
L. Holmlid et al., "A new approach to loss of alkali promoter from industrial catalysts : Importance of excited states of alkali," Studies in Surface Science and Catalysis, vol. 75, no. C, pp. 795-807, 1993.
K. Engvall and L. Holmlid, "Field ionisation of excited alkali atoms emitted from catalyst surfaces," Applied Surface Science, vol. 55, no. 4, pp. 303-308, 1992.
K. Engvall, L. Holmlid and P. G. Menon, "Comparative loss of alkali promoter by desorption from two catalysts for the dehydrogenation of ethyl benzene to styrene," Applied Catalysis, vol. 77, no. 2, pp. 235-241, 1991.
K. Engvall et al., "Loss of alkali promoter by desorption from promoted vanadium oxide catalysts," Catalysis Letters, vol. 11, no. 1, pp. 41-48, 1991.
J. Lundin et al., "Mechanism of potassium loss by desorption from an iron oxide catalyst for the styrene process," Catalysis Letters, vol. 6, no. 1, pp. 85-93, 1990.
M. Pach et al., "Development of a Laboratory Unit to Study Internal Injector Deposits Formation," in 16th International Conference on Engines and Vehicles, ICE 2023, 2023.
M. Rovira, K. Engvall and C. Duwig, "Large Eddy Simulation of Precession of a Non-swirling Turbulent Jet in a Counterflow," in ERCOFTAC Series, 2020, pp. 77-83.
L. Ruivo et al., "Catalytic upgrading of biomass-derived raw gas in fluidized bed gasifiers," in European Biomass Conference and Exhibition Proceedings, 2019, pp. 551-558.
S. Ding, K. Engvall and E. Kantarelis, "Secondary tar cracking in fixed bed using char residues from the wood gasification," in European Biomass Conference and Exhibition Proceedings, 2019.
S. Mesfun et al., "Integration of an electrolysis unit for producer gas conditioning in a bio-SNG plant," in 30th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2017, 2017.
A. Phounglamcheik et al., "Pyrolysis of Wood in a Rotary Kiln Pyrolyzer : Modeling and Pilot Plant Trials," in 8th International Conference on Applied Energy, ICAE 2016, Beijing, China, 8 October 2016 through 11 October 2016, 2017, pp. 908-913.
E. Dahlquist et al., "Modelling and simulation of biomass conversion processes," in 2013 8TH EUROSIM CONGRESS ON MODELLING AND SIMULATION (EUROSIM), 2015, pp. 506-512.
E. Robert et al., "Acoustic separation of sub-micron particles in gases," in Proceedings of Meetings on Acoustics : Volume 19, Issue 1, June 2013, 2013, p. 045020.
E. Robert et al., "Turbulence and geometric effects on the efficiency of continuous acoustic particle separation in a gas," in Proceeding of International Conference on MultiphaseFlows, ICMF2013, 2013.
P. Viklund et al., "Corrosion resistance of 304L, 310S and APMT in simulated biomass gasification environments," in European Corrosion Congress 2011, EUROCORR 2011, 2011, pp. 1035-1043.
M. Ahmadi et al., "Develompent of an online tar measuring method using ionization potential," in 2nd International symposium on Air Pollution Abatement Catalysis. Cracow, 8-10 Sep, 2010, 2010.
P. H. Moud, K. Andersson and K. Engvall, "Biomass-derived gas-phase alkali as a tar reforming catalyst promoter in sulfur-laden biomass gasification gas," Abstracts of Papers of the American Chemical Society, vol. 251, 2016.
P. H. Moud et al., "Role of alkali in heterogeneous catalysis for gas cleaning in stationary and mobile applications," Abstracts of Papers of the American Chemical Society, vol. 249, 2015.
Kapitel i böcker
K. Engvall, T. Liliedahl and E. Dahlquist, "Biomass and black liquor gasification," in Technologies for Converting Biomass to Useful Energy : Combustion, Gasification, Pyrolysis, Torrefaction and Fermentation, : CRC Press, 2013, pp. 175-216.
M. Rovira, K. Engvall and C. Duwig, "Combining ozone and UV-light for energy efficient removal of SOx in low-temperature flue gas," (Manuscript).
S. Ding, E. Kantarelis and K. Engvall, "Potassium-induced phenomena and their effects on the intrinsic reactivity of biomass-derived char during steam gasification.," (Manuscript).
M. Rovira, K. Engvall and C. Duwig, "Sensitivity analysis of an ammonium salt formation model applied to pollutant removal in marine diesel exhaust gases," (Manuscript).
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