Pressurized Entrained Flow Gasification of Pulverized Biomass – Experiences from Pilot Scale Operation
One of the goals in the national energy strategy of Sweden is that the vehicle fleet should be independent of fossil fuels by 2030. To reach that goal and to domestically secure for supply of alternative fuels, one of the suggested routes is methanol production from forest residues via pressurized a...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
AIDIC Servizi S.r.l.
2016
|
Subjects: | |
Online Access: | https://doi.org/10.3303/CET1650055 https://doaj.org/article/3536e156a1f14602bd271ef31129add8 |
id |
ftdoajarticles:oai:doaj.org/article:3536e156a1f14602bd271ef31129add8 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:3536e156a1f14602bd271ef31129add8 2023-05-15T18:00:01+02:00 Pressurized Entrained Flow Gasification of Pulverized Biomass – Experiences from Pilot Scale Operation F. Weiland H. Hedman H. Wiinikka M. Marklund 2016-06-01T00:00:00Z https://doi.org/10.3303/CET1650055 https://doaj.org/article/3536e156a1f14602bd271ef31129add8 EN eng AIDIC Servizi S.r.l. https://www.cetjournal.it/index.php/cet/article/view/3212 https://doaj.org/toc/2283-9216 doi:10.3303/CET1650055 2283-9216 https://doaj.org/article/3536e156a1f14602bd271ef31129add8 Chemical Engineering Transactions, Vol 50 (2016) Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895 article 2016 ftdoajarticles https://doi.org/10.3303/CET1650055 2022-12-31T05:53:27Z One of the goals in the national energy strategy of Sweden is that the vehicle fleet should be independent of fossil fuels by 2030. To reach that goal and to domestically secure for supply of alternative fuels, one of the suggested routes is methanol production from forest residues via pressurized and oxygen blown entrained flow gasification. In this context, ongoing industrial research in a 1 MWth gasification pilot plant is carried out at SP Energy Technology Center (SP ETC) in Piteå, Sweden. The plant is operated with pulverized or liquid fuels at process pressures up to 10 bar and this work summarizes the experiences from over 600 hours of operation with forest based biomass fuels. This paper covers results from thorough process characterization as well as results from extractive samplings of both permanent gases and particulate matter (soot) from inside the hot gasifier. Furthermore, the challenges with pressurized entrained flow gasification of pulverized biomass are discussed. During the characterization work, four of the most important process parameters (i.e. oxygen stoichiometric ratio (?), fuel load, process pressure and fuel particle size distribution) were varied with the purpose of studying the effect on the process performance and the resulting syngas quality. The experimental results showed that the maximum cold gas efficiency (CGE) based on all combustible species in the syngas was 75% (at ?=0.30), whereas the corresponding value based only on CO and H2 (with respect to further MeOH synthesis from the syngas) was 70% (at ?=0.35). As expected, the pilot experiments showed that both the soot yield and soot particle size was reduced by increasing ?. One of the additional conclusions from this work was that; minimizing heat losses from the gasifier is of utmost importance to optimize the process performance regarding energy efficiency (i.e. CGE). Therefore, a well-insulated refractory lined gasifier is the primary alternative in regards to reactor design to maximize the CGE. Future development of ... Article in Journal/Newspaper Piteå Directory of Open Access Journals: DOAJ Articles |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895 |
spellingShingle |
Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895 F. Weiland H. Hedman H. Wiinikka M. Marklund Pressurized Entrained Flow Gasification of Pulverized Biomass – Experiences from Pilot Scale Operation |
topic_facet |
Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895 |
description |
One of the goals in the national energy strategy of Sweden is that the vehicle fleet should be independent of fossil fuels by 2030. To reach that goal and to domestically secure for supply of alternative fuels, one of the suggested routes is methanol production from forest residues via pressurized and oxygen blown entrained flow gasification. In this context, ongoing industrial research in a 1 MWth gasification pilot plant is carried out at SP Energy Technology Center (SP ETC) in Piteå, Sweden. The plant is operated with pulverized or liquid fuels at process pressures up to 10 bar and this work summarizes the experiences from over 600 hours of operation with forest based biomass fuels. This paper covers results from thorough process characterization as well as results from extractive samplings of both permanent gases and particulate matter (soot) from inside the hot gasifier. Furthermore, the challenges with pressurized entrained flow gasification of pulverized biomass are discussed. During the characterization work, four of the most important process parameters (i.e. oxygen stoichiometric ratio (?), fuel load, process pressure and fuel particle size distribution) were varied with the purpose of studying the effect on the process performance and the resulting syngas quality. The experimental results showed that the maximum cold gas efficiency (CGE) based on all combustible species in the syngas was 75% (at ?=0.30), whereas the corresponding value based only on CO and H2 (with respect to further MeOH synthesis from the syngas) was 70% (at ?=0.35). As expected, the pilot experiments showed that both the soot yield and soot particle size was reduced by increasing ?. One of the additional conclusions from this work was that; minimizing heat losses from the gasifier is of utmost importance to optimize the process performance regarding energy efficiency (i.e. CGE). Therefore, a well-insulated refractory lined gasifier is the primary alternative in regards to reactor design to maximize the CGE. Future development of ... |
format |
Article in Journal/Newspaper |
author |
F. Weiland H. Hedman H. Wiinikka M. Marklund |
author_facet |
F. Weiland H. Hedman H. Wiinikka M. Marklund |
author_sort |
F. Weiland |
title |
Pressurized Entrained Flow Gasification of Pulverized Biomass – Experiences from Pilot Scale Operation |
title_short |
Pressurized Entrained Flow Gasification of Pulverized Biomass – Experiences from Pilot Scale Operation |
title_full |
Pressurized Entrained Flow Gasification of Pulverized Biomass – Experiences from Pilot Scale Operation |
title_fullStr |
Pressurized Entrained Flow Gasification of Pulverized Biomass – Experiences from Pilot Scale Operation |
title_full_unstemmed |
Pressurized Entrained Flow Gasification of Pulverized Biomass – Experiences from Pilot Scale Operation |
title_sort |
pressurized entrained flow gasification of pulverized biomass – experiences from pilot scale operation |
publisher |
AIDIC Servizi S.r.l. |
publishDate |
2016 |
url |
https://doi.org/10.3303/CET1650055 https://doaj.org/article/3536e156a1f14602bd271ef31129add8 |
genre |
Piteå |
genre_facet |
Piteå |
op_source |
Chemical Engineering Transactions, Vol 50 (2016) |
op_relation |
https://www.cetjournal.it/index.php/cet/article/view/3212 https://doaj.org/toc/2283-9216 doi:10.3303/CET1650055 2283-9216 https://doaj.org/article/3536e156a1f14602bd271ef31129add8 |
op_doi |
https://doi.org/10.3303/CET1650055 |
_version_ |
1766168940394840064 |