Study on Tar Generation from Downdraft Gasification of Oil Palm Fronds

One of the most challenging issues concerning the gasification of oil palm fronds (OPF) is the presence of tar and particulates formed during the process considering its high volatile matter content. In this study, a tar sampling train custom built based on standard tar sampling protocols was used t...

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Main Authors: Atnaw, Samson Mekbib, Kueh, S. C., Sulaiman, S. A.
Format: Citation Index Journal
Published: Hindawi Publishing Corporation 2014
Subjects:
Online Access:http://eprints.utp.edu.my/10556/1/Hindawi%20-%20Tar%20-%20Samson%20%26%20Kueh%20.pdf
http://eprints.utp.edu.my/10556/
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Institution: Universiti Teknologi Petronas
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spelling my.utp.eprints.105562017-01-19T08:20:59Z Study on Tar Generation from Downdraft Gasification of Oil Palm Fronds Atnaw, Samson Mekbib Kueh, S. C. Sulaiman, S. A. TJ Mechanical engineering and machinery One of the most challenging issues concerning the gasification of oil palm fronds (OPF) is the presence of tar and particulates formed during the process considering its high volatile matter content. In this study, a tar sampling train custom built based on standard tar sampling protocols was used to quantify the gravimetric concentration of tar (g/Nm³) in syngas produced from downdraft gasification of OPF. The amount of char, ash and solid tar produced from the gasification process was measured in order to account for the mass and carbon conversion efficiency for downdraft gasification of OPF. Elemental analysis of the char and solid tar samples was done using ultimate analysis machine, while the relative concentration of the different compounds in the liquid tar was determined making use of a liquid gas chromatography (GC) unit. In addition, the cleaning efficiency of a proposed syngas cleaning system was determined by comparing the tar concentration in raw gas and cleaned gas samples. Average tar concentration of 4.928 g/Nm³ and 1.923 g/Nm³ was obtained for raw gas and cleaned gas samples respectively. Tar concentration in the raw gas sample obtained from downdraft gasification of OPF was found to be higher compared to results for other biomass materials, which could be attributed to its higher volatile matter percentage. Average cleaning efficiency of 61% which is comparable to that of sand bed filter and venturi scrubber cleaning systems reported in literature was obtained for the cleaning system proposed in the current study. Hindawi Publishing Corporation 2014-01-02 Citation Index Journal PeerReviewed application/pdf http://eprints.utp.edu.my/10556/1/Hindawi%20-%20Tar%20-%20Samson%20%26%20Kueh%20.pdf Atnaw, Samson Mekbib and Kueh, S. C. and Sulaiman, S. A. (2014) Study on Tar Generation from Downdraft Gasification of Oil Palm Fronds. [Citation Index Journal] http://eprints.utp.edu.my/10556/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Atnaw, Samson Mekbib
Kueh, S. C.
Sulaiman, S. A.
Study on Tar Generation from Downdraft Gasification of Oil Palm Fronds
description One of the most challenging issues concerning the gasification of oil palm fronds (OPF) is the presence of tar and particulates formed during the process considering its high volatile matter content. In this study, a tar sampling train custom built based on standard tar sampling protocols was used to quantify the gravimetric concentration of tar (g/Nm³) in syngas produced from downdraft gasification of OPF. The amount of char, ash and solid tar produced from the gasification process was measured in order to account for the mass and carbon conversion efficiency for downdraft gasification of OPF. Elemental analysis of the char and solid tar samples was done using ultimate analysis machine, while the relative concentration of the different compounds in the liquid tar was determined making use of a liquid gas chromatography (GC) unit. In addition, the cleaning efficiency of a proposed syngas cleaning system was determined by comparing the tar concentration in raw gas and cleaned gas samples. Average tar concentration of 4.928 g/Nm³ and 1.923 g/Nm³ was obtained for raw gas and cleaned gas samples respectively. Tar concentration in the raw gas sample obtained from downdraft gasification of OPF was found to be higher compared to results for other biomass materials, which could be attributed to its higher volatile matter percentage. Average cleaning efficiency of 61% which is comparable to that of sand bed filter and venturi scrubber cleaning systems reported in literature was obtained for the cleaning system proposed in the current study.
format Citation Index Journal
author Atnaw, Samson Mekbib
Kueh, S. C.
Sulaiman, S. A.
author_facet Atnaw, Samson Mekbib
Kueh, S. C.
Sulaiman, S. A.
author_sort Atnaw, Samson Mekbib
title Study on Tar Generation from Downdraft Gasification of Oil Palm Fronds
title_short Study on Tar Generation from Downdraft Gasification of Oil Palm Fronds
title_full Study on Tar Generation from Downdraft Gasification of Oil Palm Fronds
title_fullStr Study on Tar Generation from Downdraft Gasification of Oil Palm Fronds
title_full_unstemmed Study on Tar Generation from Downdraft Gasification of Oil Palm Fronds
title_sort study on tar generation from downdraft gasification of oil palm fronds
publisher Hindawi Publishing Corporation
publishDate 2014
url http://eprints.utp.edu.my/10556/1/Hindawi%20-%20Tar%20-%20Samson%20%26%20Kueh%20.pdf
http://eprints.utp.edu.my/10556/
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