Characterization of Recycled Wood Chips, Syngas Yield, and Tar Formation in an Industrial Updraft Gasifier

Oveisi, Ehsan; Sokhansanj, Shahab; Lau, Anthony; Lim, Jim; Bi, Xiaotao; Preto, Fernando; Mui, Cliff

doi:10.3390/environments5070084

Cited by 23 publications

(12 citation statements)

References 31 publications

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“…Nevertheless, the be observed and modified in real time because of continuous operation of the pilot reactor used in our study. The differences between our results and are because of reactor type, but the influence of process parameters on other research studies [27,28].…”

Section: Syngas Compositioncontrasting

confidence: 89%

Process characterization and energy balance of air wood residues gasification using continuous operated pilot scale reactor

et al. 2020

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This work aimed to study the effect of gasification process operating conditions on syngas composition and properties, and process efficiency. A rotary kiln gasifier lab-scale pilot plant with capacity ≅ 30 kg/h and a power of 30 kWe was used for gasification tests applied to cherry wood at different loads, for a temperature of about 600°C, while the air was used as gasification agent for all tests. The syngas composition was measured and analyzed. The results have shown that conversion of wood cherry through gasification lead to a lean fuel gas of 3.5 MJ/Nm3 and installation characteristics have a major influence both on process and syngas properties. This is happened because the rotary kiln gasifier allows some air infiltrations, and consequently a high N2 content in the syngas composition. The energy balance of the cherry biomass gasification processes was calculated. It was found also that gas density varies slightly from 1.26 to 1.43 kg/m3, while the specific heat of the gas varies from 1.04 to 1.34 kJ/kgK.

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Section: Syngas Compositioncontrasting

confidence: 89%

Process characterization and energy balance of air wood residues gasification using continuous operated pilot scale reactor

et al. 2020

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“…High moisture content has an impact on the low heating value of the gas [45]. After drying, OPEFB is chopped manually with a size of 3×3 cm to facilitate the loading into the gasifier and within the range of recommendation for updraft gasifier [46]. OPEFB characteristics are known through proximate and ultimate analysis related to its use as an energy source.…”

Section: Feedstockmentioning

confidence: 99%

Catalytic gasification of oil palm empty fruit bunch by using Indonesian bentonite as the catalyst

Aprianti¹,

Faizal²,

Said³

et al. 2021

J Appl Eng Science

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Oil palm empty fruit bunch (OPEFB is one of the enormous waste expected to become a renewable energy source. This study aimed to convert OPEFB into syngas through a gasification process using bentonite as a catalyst. The effects of temperature and product gas catalysts were investigated, and the efficiency of the gasification process was summarized. The process has used an updraft gasifier at 350-550 °C and air as the gasification medium (ER 0.2). The results indicate that syngas can be produced by updraft gasifier. When the temperature increase, the H2 and CO rising. The highest H2 and CO content of 27.74% and 20.43% are obtained at 550°C when bentonite applied. HHV and LHV range of 3.38~12.79 MJ/Nm3 and 3.03~11.58 MJ/Nm3, respectively. The maximum carbon conversion efficiency (CCE) and cold gas efficiency (CGE) reach 85.49% and 82.34%. Bentonite has been able to increase the concentration of the gas composition especially H2 and CO and the heating value of syngas.

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“…Gas yang dihasilkan pada proses gasifikasi disebut gas produser yang kandungannya didominasi oleh gas CO, H 2 dan CH 4 [1]. Proses gasifikasi memerlukan medium gasifikasi berupa udara, oksigen dan uap air [2]. Proses gasifikasi bisa dimanfaatkan untuk menghasilkan energi alternatif yang bersumber dari biomassa yang melimpah seperti sekam padi dan bonggol jagung yang diproduksi pertahun masing-masing 57,05 juta ton dan 50,7 juta ton di Indonesia [3].…”

Section: Pendahuluanunclassified

Pengaruh Laju Aliran Udara Terhadap Konsentrasi Gas Mampu Bakar dan Daya Gasifikasi

Nurhilal¹

2019

JIIF

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Abstrak. Pada penelitian ini telah dianalisa CH4, CO dan H2 sebagai unsur dominan pada gas hasil gasifikasi dari sekam padi dan bonggol jagung. Tipe gasifikator yang digunakan adalah tipe updraft dengan udara sebagai medium gasifikasi dengan variasi laju udara 1-5 m/s. Pengukuran dilakukan dengan menggunakan sensor MQ2, MQ4 dan MQ8. Banyaknya bahan biomassa yang digunakan untuk 1 kali proses gasifikasi adalah 1 kg. Berdasarkan data hasil pengukuran temperatur gasifikasi tertinggi mencapai 866 ˚C dengan laju aliran udara 4,8 m/s. Untuk nilai konsentrasi rata-rata CH 4 , CO dan H 2 tertinggi untuk bonggol masing masing adalah 3791,4 ppm, 8959,4 ppm, dan 8267,1 ppm dengan laju aliran udara 5m/s. Untuk sekam padi diperoleh nilai rata-rata konsentrasi masing-masing adalah 6728 ppm 7497 ppm, dan 7617 ppm pada 3 m/s. Nilai daya terbesar untuk bonggol jagung adalah 11,6 kW pada laju aliran 5 m/s dan sekam padi adalah 2,51 kW pada laju aliran 3 m/s. Abstract.In this study CH4, CO and H2 have been analyzed as the dominant element in the gas gasification from rice husks and corncob. The type of gasifier used is the type of updraft with air as a gasification medium with variations in air velocity 1-5 m/s. Measurements are made using MQ2, MQ4 and MQ8 sensors. The amount of biomass material used for one gasification process is 1 kg. Based on the data of the highest gasification temperature measurements reaching 866 ˚C with an air flow rate of 4.8 m/s. The highest average concentration values of CH4, CO and H2 for humps were 3791.4 ppm, 8959.4 ppm and 8267.1 ppm with air flow rates of 5m / s. For rice husks, the average concentration values were 6728 ppm 7497 ppm and 7617 ppm at 3 m/s, respectively. The greatest power value for corncob is 11.6 kW at a flow rate of 5 m/s and rice husk is 2.51 kW at a flow rate of 3 m/s.

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Characterization of Recycled Wood Chips, Syngas Yield, and Tar Formation in an Industrial Updraft Gasifier

Cited by 23 publications

References 31 publications

Process characterization and energy balance of air wood residues gasification using continuous operated pilot scale reactor

Process characterization and energy balance of air wood residues gasification using continuous operated pilot scale reactor

Catalytic gasification of oil palm empty fruit bunch by using Indonesian bentonite as the catalyst

Pengaruh Laju Aliran Udara Terhadap Konsentrasi Gas Mampu Bakar dan Daya Gasifikasi

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