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Preliminary studies of lignocellulosics and waste fuels for fixed bed gasification

Journal Article:

Abstract

This study was carried out to understand the decomposition behaviour of a range of biofuel and waste feedstock during gasification in a downdraft gasifier. A laboratory scale large sample thermogravimetric analyser (LSTA) is used which allows the data on burn-out characteristics of different fuel particles to be measured under agitated conditions. The conditions chosen simulate the combustion behaviour in a gasifier for a range of biofuels and wastes, namely hazelnut, pistachio, and peanut shells, wood chips and sewage sludge pellets. From this data the activation energy is calculated for a heating rate of 20{sup o}C/min. It was found that, as the weight loss increases, the activation energy decreases. In addition the influence of a range of gasification air/N{sub 2} levels on constituents of the gas released during hazelnut shell decomposition was observed. It was found that the composition of the product gases consisted of CH{sub 4}, H{sub 2}, CO, CO{sub 2}, C{sub 2}H{sub 4}, C{sub 2}H{sub 6}. This was analysed as function of time for hazelnut shells showing that the primary products are H{sub 2}, CO, CH{sub 4} and CO{sub 2}. (author)
Authors:
Olgun, H; [1]  Dogru, M; Howarth, C R; [2]  Malik, A A [3] 
  1. Marmara Research Center, Kocaeli (Turkey). Energy Systems and Environmental Research Institute
  2. University of Newcastle (United Kingdom). Dept. of Chemical and Process Engineering
  3. University of Northumbria, Newcastle (United Kingdom). Dept. of Chemical and Life Science
Publication Date:
Jul 01, 2001
Product Type:
Journal Article
Reference Number:
EDB-01:077612
Resource Relation:
Journal Name: International Journal of Global Energy Issues; Journal Volume: 15; Journal Issue: 3-4; Other Information: PBD: 2001
Subject:
09 BIOMASS FUELS; BIOMASS; CELLULOSE; GASIFICATION; PYROLYSIS; PARAMETRIC ANALYSIS; PACKED BEDS; DECOMPOSITION; AGRICULTURAL WASTES; NUTS; WOOD FUELS; SEWAGE SLUDGE
OSTI ID:
20187410
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0954-7118; IJGIE7; TRN: GB0150837
Submitting Site:
GB
Size:
page(s) 264-280
Announcement Date:

Journal Article:

Citation Formats

Olgun, H, Dogru, M, Howarth, C R, and Malik, A A. Preliminary studies of lignocellulosics and waste fuels for fixed bed gasification. United Kingdom: N. p., 2001. Web.
Olgun, H, Dogru, M, Howarth, C R, & Malik, A A. Preliminary studies of lignocellulosics and waste fuels for fixed bed gasification. United Kingdom.
Olgun, H, Dogru, M, Howarth, C R, and Malik, A A. 2001. "Preliminary studies of lignocellulosics and waste fuels for fixed bed gasification." United Kingdom.
@misc{etde_20187410,
title = {Preliminary studies of lignocellulosics and waste fuels for fixed bed gasification}
author = {Olgun, H, Dogru, M, Howarth, C R, and Malik, A A}
abstractNote = {This study was carried out to understand the decomposition behaviour of a range of biofuel and waste feedstock during gasification in a downdraft gasifier. A laboratory scale large sample thermogravimetric analyser (LSTA) is used which allows the data on burn-out characteristics of different fuel particles to be measured under agitated conditions. The conditions chosen simulate the combustion behaviour in a gasifier for a range of biofuels and wastes, namely hazelnut, pistachio, and peanut shells, wood chips and sewage sludge pellets. From this data the activation energy is calculated for a heating rate of 20{sup o}C/min. It was found that, as the weight loss increases, the activation energy decreases. In addition the influence of a range of gasification air/N{sub 2} levels on constituents of the gas released during hazelnut shell decomposition was observed. It was found that the composition of the product gases consisted of CH{sub 4}, H{sub 2}, CO, CO{sub 2}, C{sub 2}H{sub 4}, C{sub 2}H{sub 6}. This was analysed as function of time for hazelnut shells showing that the primary products are H{sub 2}, CO, CH{sub 4} and CO{sub 2}. (author)}
journal = {International Journal of Global Energy Issues}
issue = {3-4}
volume = {15}
journal type = {AC}
place = {United Kingdom}
year = {2001}
month = {Jul}
}