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Phounglamcheik, AekjuthonORCID iD iconorcid.org/0000-0001-8372-4386
Publications (10 of 12) Show all publications
Kreitzberg, T., Phounglamcheik, A., Haugen, N. E., Kneer, R. & Umeki, K. (2019). A Shortcut Method to Predict Particle Size Changes during Char Combustion and Gasification under regime II Conditions. Combustion Science and Technology
Open this publication in new window or tab >>A Shortcut Method to Predict Particle Size Changes during Char Combustion and Gasification under regime II Conditions
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2019 (English)In: Combustion Science and Technology, ISSN 0010-2202, E-ISSN 1563-521XArticle in journal (Refereed) Epub ahead of print
Abstract [en]

In most industrial applications, combustion and gasification of char progresses under regime II conditions. Unlike in other regimes, both particle size and density change simultaneously in regime II due to non-uniform consumption of carbon inside the particles. In this work, mathematical predictions of diameter changes in regime II were made by a one-dimensional simulation tool, where transient species balances are resolved locally inside the particle. This simulation is computationally expensive and usually not appropriate for the implementation in comprehensive CFD simulations of combustion or gasification processes. To overcome this restraint, an alternative shortcut method with affordable computation time has been developed and validated against the detailed model. This method allows the calculation of diameter changes during combustion and gasification from precalculated effectiveness factors. Additionally, the change of particle size has been investigated experimentally in a single particle converter setup. Therein, particles are fixed on a sample holder placed in the hot flue gas of a flat flame burner. Size and temperature trends are optically assessed by a 3CCD camera.

Place, publisher, year, edition, pages
Taylor & Francis, 2019
Keywords
combustion, gasification, char conversion, biomass, particle size change
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-76792 (URN)10.1080/00102202.2019.1678919 (DOI)000492714600001 ()
Available from: 2019-11-20 Created: 2019-11-20 Last updated: 2019-11-21
Phounglamcheik, A. (2018). Biocarbon for fossil coal replacement. (Licentiate dissertation). Luleå: Luleå University of Technology
Open this publication in new window or tab >>Biocarbon for fossil coal replacement
2018 (English)Licentiate thesis, comprehensive summary (Other academic)
Alternative title[sv]
Biokol for ersättning av fossil kol
Abstract [en]

This research aims to provide a full view of knowledge in charcoal production for fossil coal replacement. Charcoal from biomass is a promising material to replace fossil coal, which is using as heating source or reactant in the industrial sector. Nowadays, charcoal with quality comparable to fossil coal is produced by high-temperature pyrolysis, but efficiency of the production is relatively low due to the trade-off between charcoal property and yield by pyrolysis temperature. Increasing charcoal yield by means of secondary char formation in pyrolysis of large wood particles is the primary method considering in this work. This research has explored increasing efficiency of charcoal production by bio-oil recycling and CO2 purging. These proposed techniques significantly increase concentration and extend residence time of volatiles inside particle of woodchip resulting extra charcoal. Characterization of charcoals implies negligible effect of these methods on charcoal properties such as elemental composition, heating value, morphological structure, and chemical structure. Besides, reactivity of charcoal slightly increased when these methods were applied. A numerical model of pyrolysis in a rotary kiln reactor has been developed to study the effect of design parameters and conditions in reactor scale. The simulation results showed fair prediction of temperature profiles and products distribution along the reactor length. Nonetheless, to deliver full knowledge in charcoal production, further works are planned to be done at the end of this doctoral research.

Place, publisher, year, edition, pages
Luleå: Luleå University of Technology, 2018
Series
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757
Keywords
Biomass pyrolysis, charcoal, bio-oil recycling, CO2 utilization, reactivity, rotary drum
National Category
Energy Engineering Chemical Engineering Engineering and Technology
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-71324 (URN)978-91-7790-242-3 (ISBN)978-91-7790-243-0 (ISBN)
Presentation
2018-12-11, Lueå University of Technology, Luleå, 10:56 (English)
Opponent
Supervisors
Available from: 2018-10-25 Created: 2018-10-24 Last updated: 2020-02-24Bibliographically approved
Phounglamcheik, A. & Umeki, K. (2018). Change in size and density of a biomass char during heterogeneous reactions. In: : . Paper presented at 25th International conference on Chemical Reaction Engineering, Florence, Italy, 20-23 May 2018.
Open this publication in new window or tab >>Change in size and density of a biomass char during heterogeneous reactions
2018 (English)Conference paper, Oral presentation with published abstract (Refereed)
National Category
Chemical Engineering Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-70426 (URN)
Conference
25th International conference on Chemical Reaction Engineering, Florence, Italy, 20-23 May 2018
Available from: 2018-08-15 Created: 2018-08-15 Last updated: 2018-08-16Bibliographically approved
Phounglamcheik, A., Wang, L., Romar, H., Broström, M., Ramser, K., Skreiberg, Ø. & Umeki, K. (2018). Effects of pyrolysis oil recycling and reaction gas atmosphere on the physical properties and reactivity of charcoal from wood. In: : . Paper presented at 22nd International Symposium on Analytical and Applied Pyrolysis, Kyoto, Japan, 3-8 June 2018.
Open this publication in new window or tab >>Effects of pyrolysis oil recycling and reaction gas atmosphere on the physical properties and reactivity of charcoal from wood
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2018 (English)Conference paper, Oral presentation with published abstract (Refereed)
National Category
Bioenergy Renewable Bioenergy Research Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-70428 (URN)
Conference
22nd International Symposium on Analytical and Applied Pyrolysis, Kyoto, Japan, 3-8 June 2018
Available from: 2018-08-15 Created: 2018-08-15 Last updated: 2018-08-16Bibliographically approved
Phounglamcheik, A., Wretborn, T. & Umeki, K. (2018). Increasing efficiency of charcoal production with bio-oil recycling. Energy & Fuels, 32(9), 9650-9658
Open this publication in new window or tab >>Increasing efficiency of charcoal production with bio-oil recycling
2018 (English)In: Energy & Fuels, ISSN 0887-0624, E-ISSN 1520-5029, Vol. 32, no 9, p. 9650-9658Article in journal (Refereed) Published
Abstract [en]

Charcoal from biomass is a promising alternative for fossil coal. Although its quality increases at high pyrolysis temperature, charcoal yield decreases, meaning lower economic performances of charcoal production processes. This work aims at demonstrating potential methods to increase charcoal yield while keeping its quality at satisfying levels. We suggested the recycling of bio-oil from pyrolysis process as a primary measure. In addition, we also investigated in detail the consequence of utilizing CO2 instead of N2 as reaction media under practical conditions (i.e. thick particles). An experimental investigation was carried out in a macro-thermogravimetric (macro-TG) reactor. Sample (woodchips, bio-oil, and woodchips embedded with bio-oil) was exposed to the reaction temperature either instantaneously (isothermal condition) or by slow heating (slow pyrolysis) in controlled gas flows of N2 and CO2. The results showed that char yield increases with the bio-oil recycling on wood chips at all pyrolysis temperatures (300–700 °C). By 20% of bio-oil embedding on wood chips, charcoal yield increased by 18.3% on average. The increase of charcoal yield was not only because of the increase in reactants, but also due to the synergetic effect between bio-oil and wood chips upon physical contact. Bio-oil recycling had negligible effects on the property of charcoal, such as carbon content and heating value. Although CO2 did not affect primary pyrolysis, it had effects on mass transfer processes. As a result, significantly higher char yield was obtained from pyrolysis in CO2 than in N2 by ensuring a good contact of volatiles and solid surface (i.e. usage of thick particles and slow heating). This study suggests that we can achieve high charcoal yield while maintaining the similar charcoal property by bio-oil recycling, CO2 purging, use of thick particles, and slow heating.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2018
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-70583 (URN)10.1021/acs.energyfuels.8b02333 (DOI)000445711700071 ()2-s2.0-85052873835 (Scopus ID)
Note

Validerad;2018;Nivå 2;2018-10-15 (johcin) 

Available from: 2018-08-24 Created: 2018-08-24 Last updated: 2018-10-24Bibliographically approved
Phounglamcheik, A., Pitchot, R., Andefors, A., Norberg, N. & Umeki, K. (2018). Production of metallurgical charcoal from biomass pyrolysis: pilot-scale experiment. In: : . Paper presented at 22nd International Symposium on Analytical and Applied Pyrolysis, Kyoto, Japan, June 3-8 2018.
Open this publication in new window or tab >>Production of metallurgical charcoal from biomass pyrolysis: pilot-scale experiment
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2018 (English)Conference paper, Oral presentation with published abstract (Refereed)
National Category
Bioenergy Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-70427 (URN)
Conference
22nd International Symposium on Analytical and Applied Pyrolysis, Kyoto, Japan, June 3-8 2018
Available from: 2018-08-15 Created: 2018-08-15 Last updated: 2018-08-16Bibliographically approved
Toloue Farrokh, N., Suopajärvi, H., Mattila, O., Umeki, K., Phounglamcheik, A., Romar, H., . . . Fabritius, T. (2018). Slow pyrolysis of by-product lignin from wood-based ethanol production: A detailed analysis of the produced chars. Energy, 164, 112-123
Open this publication in new window or tab >>Slow pyrolysis of by-product lignin from wood-based ethanol production: A detailed analysis of the produced chars
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2018 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 164, p. 112-123Article in journal (Refereed) Published
Abstract [en]

Slow pyrolysis as a method of producing a high-quality energy carrier from lignin recovered from wood-based ethanol production has not been studied for co-firing or blast furnace (BF) applications up to now. This paper investigates fuel characteristics, grindability, moisture uptake and the flow properties of lignin chars derived from the slow pyrolysis of lignin at temperatures of 300, 500 and 650 °C (L300, L500 and L650 samples respectively) at a heating rate of 5 °C min-1. The lignin chars revealed a high mass and energy yield in the range of 39-73% and 53-89% respectively. Pyrolysis at 500 °C or higher, yielded lignin chars with low H/C and O/C ratios suitable for BF injection. Furthermore, the hydrophobicity of lignin was improved tremendously after pyrolysis. Pyrolysis at high temperatures increased the sphericity of the lignin char particles and caused some agglomeration in L650. Large and less spherical particles were found to be a reason for high permeability, compressibility and cohesion of L300 in contrast to L500 and L650. L300 and L500 chars demonstrated high combustibility with low ignition and burnout temperatures. Also, rheometric analysis showed that L500 has the best flow properties including low aeration energy and high flow function.

Place, publisher, year, edition, pages
Elsevier, 2018
Keywords
Biomass, Lignin, Slow pyrolysis, Combustion
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-70639 (URN)10.1016/j.energy.2018.08.161 (DOI)000448098600010 ()2-s2.0-85053151162 (Scopus ID)
Note

Validerad;2018;Nivå 2;2018-09-21 (svasva)

Available from: 2018-08-29 Created: 2018-08-29 Last updated: 2019-09-13Bibliographically approved
Suopajärvi, H., Umeki, K., Mousa, E., Hedayati, A., Romar, H., Kemppainen, A., . . . Fabritius, T. (2018). Use of biomass in integrated steelmaking: Status quo, future needs and comparison to other low-CO2 steel production technologies. Applied Energy, 213, 384-407
Open this publication in new window or tab >>Use of biomass in integrated steelmaking: Status quo, future needs and comparison to other low-CO2 steel production technologies
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2018 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 213, p. 384-407Article in journal (Refereed) Published
Abstract [en]

This paper provides a fundamental and critical review of biomass application as a reducing agent and fuel in integrated steelmaking. The basis for the review is derived from the current process and product quality requirements that also biomass-derived fuels should fulfill. The availability and characteristics of different sources of biomass are discussed and suitable pretreatment technologies for their upgrading are evaluated. The existing literature concerning biomass application in bio-coke making, blast furnace injection, iron ore sintering and production of carbon composite agglomerates is reviewed and research gaps filled by providing insights and recommendations to the unresolved challenges. Several possibilities to integrate the production of biomass-based reducing agents with existing industrial infrastructures to lower the cost and increase the total efficiency are given. A comparison of technical challenges and CO2 emission reduction potential between biomass-based steelmaking and other emerging technologies to produce low-CO2 steel is made.

Place, publisher, year, edition, pages
Elsevier, 2018
Keywords
Steel industry, Blast furnace, Biomass, Biomass upgrading, Bioenergy, CO2 emission reduction
National Category
Chemical Engineering Environmental Engineering Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-67413 (URN)10.1016/j.apenergy.2018.01.060 (DOI)000425576900034 ()2-s2.0-85042720586 (Scopus ID)
Note

Validerad;2018;Nivå 2;2018-02-05 (andbra)

Available from: 2018-01-29 Created: 2018-01-29 Last updated: 2019-08-16Bibliographically approved
Phounglamcheik, A., Wretborn, T. & Umeki, K. (2017). Biomass pyrolysis with bio-oil recycle to increase energy recovery. In: : . Paper presented at 25th European Biomass Conference and Exhibition, EUBCE 2017, Stockholm, Sweden, 12-15 June 2017 (pp. 1388-1392). ETA-Florence Renewable Energie
Open this publication in new window or tab >>Biomass pyrolysis with bio-oil recycle to increase energy recovery
2017 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This study aims at increasing char yield by recycling bio-oil without negative impact on char qualities, i.e. carbon content and heating value. Pyrolysis experiments on spruce and birch chips were carried in a macro-thermogravimetric analyzer. To examine the effect of bio-oil recycle, dried raw woodchips, pure bio-oil, and woodchips impregnated with bio-oil (10, 20 and 25% on mass basis) were compared. The experiments were carried out by introducing sample into the reaction zone with the flow of N2 and at the temperature range of 300 to 600 ˚C. Pyrolysis of the bio-oil impregnated woodchip gave higher char yield than the pyrolysis of raw woodchip. By the 20% (m/m) bio-oil impregnation, char yield increased by 18.9% (spruce) and 19.1% (birch) on average from the raw woodchip pyrolysis. In addition, the char yield from bio-oil impregnated woodchips was higher than the interpolated char yield of raw woodchips and bio-oil, indicating that synergy effect exists by bio-oil impregnation compared with mere recycling of bio-oil. However, high heating rate corresponded to high temperature pyrolysis, i.e. above 400 ˚C, created cavities and breakages on woodchips, which minimized the secondary reaction. Neither carbon content nor heating value of char was influenced by bio-oil impregnation. Energy yield also showed improvement by increasing bio-oil recycling ratio. For example, energy yield of char from woodchips at the temperature of 340 ˚C increased from 48.4% with raw woodchips to 64.5% by woodchips with 25% of bio-oil impregnation.

Place, publisher, year, edition, pages
ETA-Florence Renewable Energie, 2017
Series
European biomass conferences and exhibition proceedings, ISSN 2282-5819
Keywords
Pyrolysis, biomass, biochar, bio-oil, blast furnace
National Category
Chemical Process Engineering Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-65214 (URN)10.5071/25thEUBCE2017-3CV.2.6 (DOI)2-s2.0-85043757982 (Scopus ID)978-88-89407-17-2 (ISBN)
Conference
25th European Biomass Conference and Exhibition, EUBCE 2017, Stockholm, Sweden, 12-15 June 2017
Funder
Interreg Nord, 20200224
Available from: 2017-08-21 Created: 2017-08-21 Last updated: 2019-08-16Bibliographically approved
Phounglamcheik, A., Umeki, K. & Wretborn, T. (2017). Biomass pyrolysis with bio-oil recycle to increase energy recovery in biochar. In: : . Paper presented at 25th European Biomass Conference and Exhibition, Stockholm, 12-15 June 2017.
Open this publication in new window or tab >>Biomass pyrolysis with bio-oil recycle to increase energy recovery in biochar
2017 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

ABSTRACT: This study aims at increasing char yield by recycling bio-oil without negative impact on char qualities, i.e. carbon content and heating value. Pyrolysis experiments on spruce and birch chips were carried in a macro-thermogravimetric analyzer. To examine the effect of bio-oil recycle, dried raw woodchips, pure bio-oil, and woodchips impregnated with bio-oil (10, 20 and 25% on mass basis) were compared. The experiments were carried out by introducing sample into the reaction zone with the flow of N2 and at the temperature range of 300 to 600 ˚C. Pyrolysis of the bio-oil impregnated woodchip gave higher char yield than the pyrolysis of raw woodchip. By the 20% (m/m) bio-oil impregnation, char yield increased by 18.9% (spruce) and 19.1% (birch) on average from the raw woodchip pyrolysis. In addition, the char yield from bio-oil impregnated woodchips was higher than the interpolated char yield of raw woodchips and bio-oil, indicating that synergy effect exists by bio-oil impregnation compared with mere recycling of bio-oil. However, high heating rate corresponded to high temperature pyrolysis, i.e. above 400 ˚C, created cavities and breakages on woodchips, which minimized the secondary reaction. Neither carbon content nor heating value of char was influenced by bio-oil impregnation. Energy yield also showed improvement by increasing bio-oil recycling ratio. For example, energy yield of char from woodchips at the temperature of 340 ˚C increased from 48.4% with raw woodchips to 64.5% by woodchips with 25% of bio-oil impregnation.

Keywords
pyrolysis, biomass, bio-oil, blast furnace
National Category
Chemical Engineering Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-66443 (URN)
Conference
25th European Biomass Conference and Exhibition, Stockholm, 12-15 June 2017
Available from: 2017-11-07 Created: 2017-11-07 Last updated: 2019-04-03Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-8372-4386

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