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Pettersson, Esbjörn
Publications (10 of 43) Show all publications
Salik, K., Weiland, F., Pettersson, E., Wiinikka, H., Wingren, A., Strandberg, M., . . . Nordin, A. (2016). Entrained flow gasification of torrefied lignocellulosic biomass (ed.). In: (Ed.), Proceedings of the 24th European Biomass Conference and Exhibition: . Paper presented at European Biomass Conference and Exhibition : 06/06/2016 - 09/06/2016 (pp. 1138-1142). Amsterdam: ETA Florence Renewable Energies
Open this publication in new window or tab >>Entrained flow gasification of torrefied lignocellulosic biomass
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2016 (English)In: Proceedings of the 24th European Biomass Conference and Exhibition, Amsterdam: ETA Florence Renewable Energies , 2016, p. 1138-1142Conference paper, Published paper (Refereed)
Abstract [en]

An extensive evaluation program was carried out within the European SECTOR project to evaluate the feasibility of torrefied and densified biomass in available entrained flow gasifiers. Different entrained flow reactors (both atmospheric and pressurized) in different scales, from lab scale to a 240 MW industrial gasifier were used for evaluation of torrefied materials as feedstock. Total behaviours of the new fuel throughout the whole supply chains and the EFG systems were evaluated and documented, including process behaviours in terms of operation, gas quality, products of incomplete gasification, etc. Results showed a significant improvement in fuel properties in terms of storage, logistics, milling and feeding behaviour by torrefaction and densification. Entrained flow gasification of the torrefied biomass was also shown to be feasible without any major showstoppers, even improving the gasification processes. Production of tars and other products of incomplete gasification were often found significantly reduced during gasification of torrefied material.

Place, publisher, year, edition, pages
Amsterdam: ETA Florence Renewable Energies, 2016
Series
EUBCE Proceedings, ISSN 2282-5819
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-63830 (URN)2-s2.0-85019683675 (Scopus ID)
Conference
European Biomass Conference and Exhibition : 06/06/2016 - 09/06/2016
Available from: 2017-06-09 Created: 2017-06-09 Last updated: 2018-05-02Bibliographically approved
Furusjö, E. & Pettersson, E. (2016). Mixing of Fast Pyrolysis Oil and Black Liquor: preparing an Improved Gasification Feedstock. Energy & Fuels, 30(12), 10575-10582
Open this publication in new window or tab >>Mixing of Fast Pyrolysis Oil and Black Liquor: preparing an Improved Gasification Feedstock
2016 (English)In: Energy & Fuels, ISSN 0887-0624, Vol. 30, no 12, p. 10575-10582Article in journal (Refereed) Published
Abstract [en]

Co-gasification of fast pyrolysis oil and black liquor can be used to increase the size and improve profitability of pulp mill integrated biorefineries. The acids present in pyrolysis oil limit the amount that can be mixed into black liquor without causing precipitation of the black liquor dissolved lignin. This work shows that a simple model based on pyrolysis oil total acid number, including weak phenolic acids, can be used to predict the maximum pyrolysis oil fraction in blends. The maximum oil fraction is 20–25% for typical pyrolysis oil but can be increased up to at least 50% mass, corresponding to 70% energy, by addition of base. Thermodynamic equilibrium calculations are used to understand the effects of blend composition, including any added base, on the performance of a commercial scale gasification process. A substantial increase in overall gasification efficiency is observed with increasing pyrolysis oil fraction.

National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-60581 (URN)10.1021/acs.energyfuels.6b02383 (DOI)000390072900060 ()2-s2.0-85006485760 (Scopus ID)
Funder
Swedish Energy Agency, 38026-1
Note

Validerad; 2017; Nivå 2; 2016-12-27 (andbra)

Available from: 2016-11-21 Created: 2016-11-21 Last updated: 2018-12-14Bibliographically approved
Wiinikka, H., Weiland, F., Pettersson, E., Öhrman, O., Carlsson, P. & Stjernberg, J. (2014). Characterisation of submicron particles produced during oxygen blown entrained flow gasification of biomass (ed.). Paper presented at . Combustion and Flame, 161(7), 1923-1934
Open this publication in new window or tab >>Characterisation of submicron particles produced during oxygen blown entrained flow gasification of biomass
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2014 (English)In: Combustion and Flame, ISSN 0010-2180, E-ISSN 1556-2921, Vol. 161, no 7, p. 1923-1934Article in journal (Refereed) Published
Abstract [en]

In this paper submicron particles sampled after the quench during 200 kW, 2 bar(a) pressurised, oxygen blown gasification of three biomass fuels, pure stem wood of pine and spruce, bark from spruce and a bark mixture, have been characterised with respect to particle size distribution with a low pressure cascade impactor. The particles were also characterised for morphology and elemental composition by a combination of scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS) and high resolution transmission electron microscopy/energy dispersive spectroscopy/selected area electron diffraction pattern (HRTEM/EDS/SAED) techniques. The resulting particle concentration in the syngas after the quench varied between 46 and 289 mg/Nm3 consisting of both carbon and easily volatile ash forming element significantly depending on the fuel ash content. Several different types of particles could be identified from classic soot particles to pure metallic zinc particles depending on the individual particle relation of carbon and ash forming elements. The results also indicate that ash forming elements and especially zinc interacts in the soot formation process creating a particle with shape and microstructure significantly different from a classical soot particle.

National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-3447 (URN)10.1016/j.combustflame.2014.01.004 (DOI)000337200700020 ()2-s2.0-84901625416 (Scopus ID)1451860f-0982-463f-b03f-8e4cfea8dd3b (Local ID)1451860f-0982-463f-b03f-8e4cfea8dd3b (Archive number)1451860f-0982-463f-b03f-8e4cfea8dd3b (OAI)
Note
Validerad; 2014; 20140128 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Olwa, J., Öhman, M., Pettersson, E., Boström, D., Okure, M. & Kjellström, B. (2013). Potassium retention in updraft gasification of wood (ed.). Paper presented at . Energy & Fuels, 27(11), 6718−6724
Open this publication in new window or tab >>Potassium retention in updraft gasification of wood
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2013 (English)In: Energy & Fuels, ISSN 0887-0624, E-ISSN 1520-5029, Vol. 27, no 11, p. 6718−6724-Article in journal (Refereed) Published
Abstract [en]

The release of compounds of K with producer gas during biomass gasification is known to play significant roles in fouling and high-temperature corrosion in boilers and high-temperature heat exchangers as well as blades in gas turbines that use producer gas as fuel. These phenomena are a major setback in the application of biomass fuel in combination with advanced process conditions. Updraft gasification provides gas filtering by the fuel bed with a gas cooling effect, conditions anticipated to create an avenue for K retention in the gasifier. The objective of this study was to determine the K retention potential of such gasifiers during wood gasification. Samples for the determination of the fate of K compounds included in the feedstock were collected from the generated producer gas using Teflon filters and gas wash bottles and also from wall deposits and ash residues. Analyses of samples were carried out using inductively coupled plasma–atomic emission spectrometry/mass spectrometry and X-ray diffraction methods. The finding was that about 99% of K was retained in the gasifier. K was found in the ash samples as a crystalline phase of K2Ca(CO3)2(s) (fairchildite). A possible reaction mechanism leading to the formation of K2Ca(CO3)2 is discussed in the paper. The 1% K understood as released, equivalent to 1200 ppbw content of K entrained in the producer gas stream, exceeds a known limit for application of the gas in conventional gas turbines. This would suggest application of the gas in an externally fired gas turbine system, where some limited K and other depositions in the heat exchanger can be relatively easy to handle.

National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-15843 (URN)10.1021/ef401179f (DOI)000327557800041 ()2-s2.0-84888360866 (Scopus ID)f672b95c-ecd2-4757-aaaa-cb366d061e18 (Local ID)f672b95c-ecd2-4757-aaaa-cb366d061e18 (Archive number)f672b95c-ecd2-4757-aaaa-cb366d061e18 (OAI)
Note
Validerad; 2013; 20131015 (ohmmar)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Öhrman, O., Weiland, F., Pettersson, E., Johansson, A.-C., Hedman, H. & Pedersen, M. (2013). Pressurized oxygen blown entrained flow gasification of a biorefinery lignin residue (ed.). Paper presented at . Fuel processing technology, 115, 130-138
Open this publication in new window or tab >>Pressurized oxygen blown entrained flow gasification of a biorefinery lignin residue
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2013 (English)In: Fuel processing technology, ISSN 0378-3820, E-ISSN 1873-7188, Vol. 115, p. 130-138Article in journal (Refereed) Published
Abstract [en]

Renewable fuels could in the future be produced in a biorefinery which involves highly integrated technologies. It has been reported that thermochemical conversion (gasification) of lignocellulosic biomass has a high potential for end production of renewable biofuels. In this work, lignin residue from biochemical conversion of wheat straw was gasified in an oxygen blown pressurized entrained flow gasifier (PEBG) at 0.25–0.30 MWth, 0.45 < λ < 0.5 and 1 bar (g). A video camera mounted inside the PEBG was used to observe the flame during start up and during operation. Hydrogen (H2), carbon monoxide (CO) and carbon dioxide (CO2) were the main gas components with H2/CO ratios varying during the gasification test (0.54–0.63). The methane (CH4) concentration also varied slightly and was generally below 1.7% (dry and N2 free). C2-hydrocarbons (< 1810 ppm) and benzene (< 680 ppm) were also observed together with low concentrations of hydrogen sulfide (H2S, < 352 ppm) and carbonyl sulfide (COS, < 131 ppm). The process temperature in the reactor was around 1200 °C. The slag seemed to consist of Cristobalite (SiO2) and Berlinite (AlPO4) and Na, Ca, Mg, K and Fe in lower concentrations. Cooling of the burner will be necessary for longer tests to avoid safety shut downs due to high burner temperature. The cold gas efficiency and carbon conversion was estimated but more accurate measurements, especially the syngas flow, needs to be determined during a longer test in order to obtain data on the efficiency at optimized operating conditions. The syngas has potential for further upgrading into biofuels, but will need traditional gas cleaning such as acid gas removal and water gas shifting. Also, higher pressures and reducing the amount of N2 is important in further work.

National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-14070 (URN)10.1016/j.fuproc.2013.04.009 (DOI)000324154600017 ()2-s2.0-84879084024 (Scopus ID)d61f6678-a4bc-42ee-b55a-54752409d2cd (Local ID)d61f6678-a4bc-42ee-b55a-54752409d2cd (Archive number)d61f6678-a4bc-42ee-b55a-54752409d2cd (OAI)
Note
Validerad; 2013; 20130513 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Boman, C., Nyström, R., Sandström, T., Blomberg, A., Wiinikka, H., Grönberg, C., . . . Strand, M. (2011). Emissioner från småskalig värmeproduktion med biobränslen: Ett samordnat projekt som berör hälsopåverkande partikel- och tungmetallutsläpp från tradionella och alternativa biobränslen (ed.). Paper presented at . Umeå: Umeå universitet
Open this publication in new window or tab >>Emissioner från småskalig värmeproduktion med biobränslen: Ett samordnat projekt som berör hälsopåverkande partikel- och tungmetallutsläpp från tradionella och alternativa biobränslen
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2011 (Swedish)Report (Other academic)
Place, publisher, year, edition, pages
Umeå: Umeå universitet, 2011. p. 23
Series
ETPC Report, ISSN 1653-0551 ; 11:05
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-22024 (URN)1338e191-bc94-4120-bbd8-a7cd55e0492c (Local ID)1338e191-bc94-4120-bbd8-a7cd55e0492c (Archive number)1338e191-bc94-4120-bbd8-a7cd55e0492c (OAI)
Note
Godkänd; 2011; 20111010 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-05-02Bibliographically approved
Unosson, J., Boman, C., Nyström, R., Pettersson, E., Langrish, J., Muala, A., . . . Bosson, J. (2011). Exposure to wood smoke increases arterial stiffness (ed.). In: (Ed.), (Ed.), Wärme aus Holz – Feinstaubemissionen: Scientific Contributions. Paper presented at European Aerosol Conference Satellite Workshop : Aerosols from domestic biomass heating, characterisation and toxicity - Critical pathways towards sustainability of biomass based heating 03/09/2011 - 04/09/2011.
Open this publication in new window or tab >>Exposure to wood smoke increases arterial stiffness
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2011 (English)In: Wärme aus Holz – Feinstaubemissionen: Scientific Contributions, 2011Conference paper, Meeting abstract (Other academic)
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-35606 (URN)a329d252-c7c6-47d7-9713-39758f038030 (Local ID)a329d252-c7c6-47d7-9713-39758f038030 (Archive number)a329d252-c7c6-47d7-9713-39758f038030 (OAI)
Conference
European Aerosol Conference Satellite Workshop : Aerosols from domestic biomass heating, characterisation and toxicity - Critical pathways towards sustainability of biomass based heating 03/09/2011 - 04/09/2011
Note
Godkänd; 2011; 20111022 (esbpet)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Boman, C., Mudway, I., Wiinikka, H., Pettersson, E., Nyström, R., Grönberg, C., . . . Sandström, T. (2011). In vitro screening of biomass combustion aerosol toxicity: Part 1: Oxidative potential (ed.). In: (Ed.), (Ed.), Wärme aus Holz – Feinstaubemissionen: Scientific Contributions. Paper presented at European Aerosol Conference Satellite Workshop : Aerosols from domestic biomass heating, characterisation and toxicity - Critical pathways towards sustainability of biomass based heating 03/09/2011 - 04/09/2011.
Open this publication in new window or tab >>In vitro screening of biomass combustion aerosol toxicity: Part 1: Oxidative potential
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2011 (English)In: Wärme aus Holz – Feinstaubemissionen: Scientific Contributions, 2011Conference paper, Meeting abstract (Other academic)
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-26923 (URN)030c3ed3-c004-4908-9bc1-697ced510afd (Local ID)030c3ed3-c004-4908-9bc1-697ced510afd (Archive number)030c3ed3-c004-4908-9bc1-697ced510afd (OAI)
Conference
European Aerosol Conference Satellite Workshop : Aerosols from domestic biomass heating, characterisation and toxicity - Critical pathways towards sustainability of biomass based heating 03/09/2011 - 04/09/2011
Note
Godkänd; 2011; 20111022 (esbpet)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-05-02Bibliographically approved
Boman, C., Nyström, R., Wiinikka, H., Grönberg, C., Öhrman, O., Pettersson, E., . . . Genberg, J. (2011). Inverkan av förbränningsteknik och bränsle på hälsofarligheten av partikelemissioner från småskalig biobränsleeldning (ed.). In: (Ed.), (Ed.), Emissioner från småskalig värmeförsörjning med biobränslen: Ett samordnat projekt som berör hälsopåverkande partikel- och tungmetallutsläpp från traditionella och alternativa biob. Paper presented at . Umeå: Umeå universitet
Open this publication in new window or tab >>Inverkan av förbränningsteknik och bränsle på hälsofarligheten av partikelemissioner från småskalig biobränsleeldning
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2011 (Swedish)In: Emissioner från småskalig värmeförsörjning med biobränslen: Ett samordnat projekt som berör hälsopåverkande partikel- och tungmetallutsläpp från traditionella och alternativa biob, Umeå: Umeå universitet , 2011Chapter in book (Other academic)
Place, publisher, year, edition, pages
Umeå: Umeå universitet, 2011
Series
ETPC Report, ISSN 1653-0551 ; 11:05
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-20382 (URN)47bbc491-8175-498d-aeae-725744909789 (Local ID)47bbc491-8175-498d-aeae-725744909789 (Archive number)47bbc491-8175-498d-aeae-725744909789 (OAI)
Note
Godkänd; 2011; 20111010 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-05-02Bibliographically approved
Nordin, E., Pagels, J., Eriksson, A., Nyström, R., Pettersson, E., Swietlicki, E., . . . Boman, C. (2011). On-line characterization of biomass aerosols from different combustion conditions (ed.). In: (Ed.), European Aerosol Conference: . Paper presented at European Aerosol Conference 2011 (Satellite Workshop) : 03/09/2011 - 04/09/2011.
Open this publication in new window or tab >>On-line characterization of biomass aerosols from different combustion conditions
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2011 (English)In: European Aerosol Conference, 2011Conference paper (Other academic)
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
urn:nbn:se:ltu:diva-33180 (URN)7fb96029-2298-4e03-9822-e27d8aa34495 (Local ID)7fb96029-2298-4e03-9822-e27d8aa34495 (Archive number)7fb96029-2298-4e03-9822-e27d8aa34495 (OAI)
Conference
European Aerosol Conference 2011 (Satellite Workshop) : 03/09/2011 - 04/09/2011
Note

Godkänd; 2011; 20110920 (esbpet)

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-02-16Bibliographically approved
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