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Sampling and Characterization of Sub-Micrometer High-Temperature Particles Present in the Product Gas from a Circulating Fluidized-Bed Biomass Gasifier

Nilsson, Patrik LU ; Meng, Xiangmei; Malik, Azhar LU ; de Jong, Wiebren; Gudmundsson, Anders LU ; Verkooijen, Adrian H. M. and Sanati, Mehri LU (2013) In Energy & Fuels 27(6). p.3290-3295
Abstract
The removal of particulate fine fractions by a proper high-temperature cleaning device is a very important issue in the development of the biorefinery concept. Therefore, in this investigation, particles from a 100 kW(th) steam-O-2 blown circulating fluidized-bed (CFB) gasifier were sampled and characterized. The sampling was performed with a specially designed heated dilution probe downstream of a high-temperature candle filter element. The dilution probe was followed by a bed of activated carbon to separate the condensed phase from the particle phase by reducing the supersahuation of the volatile material. Parallel measurements were performed by a scanning mobility particle sizer (SMPS) and sample collection by a cascade impactor... (More)
The removal of particulate fine fractions by a proper high-temperature cleaning device is a very important issue in the development of the biorefinery concept. Therefore, in this investigation, particles from a 100 kW(th) steam-O-2 blown circulating fluidized-bed (CFB) gasifier were sampled and characterized. The sampling was performed with a specially designed heated dilution probe downstream of a high-temperature candle filter element. The dilution probe was followed by a bed of activated carbon to separate the condensed phase from the particle phase by reducing the supersahuation of the volatile material. Parallel measurements were performed by a scanning mobility particle sizer (SMPS) and sample collection by a cascade impactor assembly to obtain information about the particle size distribution and elemental analysis, respectively. The measured particle mass was found to be dominated by coarse particles from bed material together with high amounts of potassium, which is thought to have penetrated through the filter. The aim of this work is to validate the developed particle measuring setup by performing physical and chemical characterization of the fine-particle fraction that is not captured by the filtering system to avoid the catalytic deactivation of the downstream upgrading processing. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Energy & Fuels
volume
27
issue
6
pages
3290 - 3295
publisher
The American Chemical Society
external identifiers
  • wos:000320911200045
  • scopus:84879393727
ISSN
0887-0624
DOI
10.1021/ef400444t
project
MERGE
language
English
LU publication?
yes
id
b8f3be91-cac9-4994-af07-09053d965bc2 (old id 3979188)
date added to LUP
2013-08-23 12:38:32
date last changed
2019-03-12 13:32:05
@article{b8f3be91-cac9-4994-af07-09053d965bc2,
  abstract     = {The removal of particulate fine fractions by a proper high-temperature cleaning device is a very important issue in the development of the biorefinery concept. Therefore, in this investigation, particles from a 100 kW(th) steam-O-2 blown circulating fluidized-bed (CFB) gasifier were sampled and characterized. The sampling was performed with a specially designed heated dilution probe downstream of a high-temperature candle filter element. The dilution probe was followed by a bed of activated carbon to separate the condensed phase from the particle phase by reducing the supersahuation of the volatile material. Parallel measurements were performed by a scanning mobility particle sizer (SMPS) and sample collection by a cascade impactor assembly to obtain information about the particle size distribution and elemental analysis, respectively. The measured particle mass was found to be dominated by coarse particles from bed material together with high amounts of potassium, which is thought to have penetrated through the filter. The aim of this work is to validate the developed particle measuring setup by performing physical and chemical characterization of the fine-particle fraction that is not captured by the filtering system to avoid the catalytic deactivation of the downstream upgrading processing.},
  author       = {Nilsson, Patrik and Meng, Xiangmei and Malik, Azhar and de Jong, Wiebren and Gudmundsson, Anders and Verkooijen, Adrian H. M. and Sanati, Mehri},
  issn         = {0887-0624},
  language     = {eng},
  number       = {6},
  pages        = {3290--3295},
  publisher    = {The American Chemical Society},
  series       = {Energy & Fuels},
  title        = {Sampling and Characterization of Sub-Micrometer High-Temperature Particles Present in the Product Gas from a Circulating Fluidized-Bed Biomass Gasifier},
  url          = {http://dx.doi.org/10.1021/ef400444t},
  volume       = {27},
  year         = {2013},
}