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The Effect of Moisture Content on the Tar Characteristic of Wood Pellet Feedstock in a Downdraft Gasifier

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Division of Mechanical Science and Engineering, Graduate School of Natural Science and Technology, Kanazawa University, Natural Science Research Building 3, Kakuma-machi, Kanazawa 920-1192, Japan
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Department of Mechanical Engineering, Engineering Faculty, Universitas Negeri Semarang, Sekaran Gunung Pati, Semarang 50229, Indonesia
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Department of Mechanical Engineering, University of Agriculture and Forestry, Hue University, Hue City 49100, Vietnam
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Department of Computer and Informatics Engineering, Politeknik Negeri Jakarta, Depok 16425, Indonesia
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Division of Environmental Engineering Science, Graduate School of Science and Technology, Gunma University, Tenjin-cho, Kiryu-shi, Gunma 376-0011, Japan
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(8), 2760; https://doi.org/10.3390/app10082760
Received: 12 March 2020 / Revised: 28 March 2020 / Accepted: 13 April 2020 / Published: 16 April 2020
(This article belongs to the Section Energy)
This study examined the tar characteristic of wood pellet using a downdraft gasifier system. The wood pellet was used as a feedstock with a variation of moisture content between 2 to 6 wt. %. Tar sample was taken using the JP 2009-40885 method. Gas chromatography mass spectrometry and gravimetric analysis were used to identify and to analyze the tar sample, respectively. The results show that an increase in moisture content slightly decreased the total concentration of tar formation on the nine tar compounds of the biomass. Additionally, the lowest moisture content produced the highest amount of light tar on tar classification. The amount of light tar indicates the ease of ignition in the gasifier. Therefore, this condition will minimize the failure-of-equipment problem because of no clogs in the gasifier equipment. The lowest moisture content had the lowest tar density, and this minimized the deposit of tar in the gasifier. Therefore, the lowest moisture content had low tar production in the biomass gasification process using wood pellets. View Full-Text
Keywords: wood pellet; moisture content; tar formation; tar classification; tar density wood pellet; moisture content; tar formation; tar classification; tar density
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MDPI and ACS Style

Naryanto, R.F.; Enomoto, H.; Vo Cong, A.; Fukadu, K.; Zong, Z.; Delimayanti, M.K.; Chunti, C.; Noda, R. The Effect of Moisture Content on the Tar Characteristic of Wood Pellet Feedstock in a Downdraft Gasifier. Appl. Sci. 2020, 10, 2760.

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