Downdraft Gasification of Oil Palm Frond: Effects of Temperature and Operation Time

Moni, Mohamad Nazmi Zaidi; Sulaiman, Shaharin Anwar

doi:10.3923/jas.2012.2574.2579

Cited by 7 publications

(9 citation statements)

References 6 publications

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“…Based on Table 6, it shows that each syngas yield improves (including combustible gases) by increasing the reactor temperature. Thus, the syngas CV also increases based on (3) [17] CV syngas = I CV n × Vol.%…”

Section: Effects Of Temperature On Gasification Yieldmentioning

confidence: 99%

“…The summation of all the gas component species will bear CV syngas . The typical CV n (gas species) used were: 13.1 MJ/Nm 3 for CO, 37.1 MJ/ Nm 3 for CH 4 , 11.2 MJ/Nm 3 for H 2 and 0 MJ/Nm 3 for CO 2 [17]. According to the correlation and CV contained in the gas component species, CO and CH 4 are favourable to increase the syngas CV.…”

Section: Effect Of Temperature On Syngas Yield Compositionmentioning

confidence: 99%

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Performance of oil palm frond gasification using medium‐scale downdraft gasification for electricity generation

Ariffin

Mahmood

Mohamed

et al. 2015

IET Renewable Power Generation

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This paper focuses on the performance of Oil Palm Frond (OPF) gasification, using a medium-scale downdraft gasification system with a reactor capacity of 500 kg of feedstock. The gasification process was carried out at standard operating conditions, with a feed rate of 158 kg/h and a reactor temperature range of 700-800°C. The performance of OPF gasification was evaluated by monitoring the composition of syngas components, the calorific value of the syngas, the syngas flow rate, and the gasification cold gas efficiency. The results show that the OPF gasification performance improves when the reactor temperature is increased. The syngas calorific value, syngas flow rate and gasification cold gas efficiency are in the range of 4.49-5.15 MJ/Nm 3 , 207-311 m 3 /hour, and 37-65% respectively. In terms of the syngas composition, CO, H 2 ,C H 4 , and CO 2 , are in the ranges 16.29-17.62%, 10.56-10.83%, 5.96-7.40%, and 17.96-18.35% respectively. The best syngas characteristics were obtained at the highest temperature of 770°C. At this temperature and feed rate, and using typical gas engine with 30% efficiency, the electricity that can be generated is calculated to be 136 kWe. Due to its favourable performance, OPF gasification with this scale is a promising process for renewable power generation.

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Section: Effects Of Temperature On Gasification Yieldmentioning

confidence: 99%

Section: Effect Of Temperature On Syngas Yield Compositionmentioning

confidence: 99%

Performance of oil palm frond gasification using medium‐scale downdraft gasification for electricity generation

Ariffin

Mahmood

Mohamed

et al. 2015

IET Renewable Power Generation

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“…The temperature range was relatively low when compared to the typical hearth temperature range during the gasification of OPF fuel that did not undergo any extensive drying process at 750-900°C and sometimes up to 1200°C 1,7 . The temperatures at drying and pyrolysis zones were found to be between 250-350°C respectively, which were also very low compared to typical OPF drying and pyrolysis zone temperatures of around 350-600°C.…”

Section: Temperature Profilementioning

confidence: 99%

Pre-treatment of oil palm frond biomass via extensive high temperature drying for gasification process

et al. 2017

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Abstract. Oil palm frond has been utilized as a solid biomass fuel for gasification to produce synthesis gas or syngas to be used for heat and power generation. A fuel pre-treatment method by means of extensively-drying OPF blocks at 150 o C and 200 o C for 4 hours was implemented to investigate the effects of the fuel in terms of drying efficiency and gasification performances. Tar, pyrolysis oil and condensates were found to be squeezed out by heat during drying, signifying volatilization of fuel at temperatures between water boiling point at 100 o C and fuel pyrolysis point at 280 o C. Syngas produced from the updraft gasification of extensively-dried OPF blocks was analyzed and tested for sustainable gas flares. The syngas was found to be composed of 16.5% CO, 10% CO2, 4% H2 and 0.9% CH4 and was produced at gasification temperatures lower than that exhibited by normal OPF blocks.

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“…At present, only one report (Lapuerta, Hernández, Pazo, & López, 2008) of a preliminary study of co-gasification of different biomasses can be found, in which the biomasses considered are limited to those available in Mediterranean countries. The gasification process can be complicated as it requires the biomass feedstock to have a low moisture content, typically below 15% (Moni & Sulaiman, 2013a). Different moisture content, as a result of different drying intensities or processes, may result in different syngas characteristics and quality (Atnaw, Sulaiman, & Yusup, 2011).…”

Section: Introductionmentioning

confidence: 99%

On the Diversification of Feedstock in Gasification of Oil Palm Fronds

Sulaiman¹,

Razali²,

Konda³

et al. 2014

J MECH ENG SCI

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Co-gasification of biomass can be beneficial since relying on only one type of biomass can interrupt operations if the supply of feedstock is disrupted for any reason. Despite this a gasifier system is usually designed for operation with only one specific feedstock. The gasifying of different biomasses can lead to failure or inefficiency. In this work the gasification of different forms of feedstock derived from oil palm frond was tested in an updraft gasifier that was specially designed for oil palm fronds. The feedstocks considered were dried frond blocks, briquetted fronds and overdried (at 150°C) frond blocks. The air flow rate was maintained to the value set for dried fronds in order to investigate the robustness of such configurations. The resulting syngas from the gasification was analyzed in terms of the composition of combustible gases and higher heating value (HHV). Overall, it was found that the altered forms of feedstock caused degradation in the syngas quality, which resulted in a decrease in the HHV of up to 65%.

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Downdraft Gasification of Oil Palm Frond: Effects of Temperature and Operation Time

Cited by 7 publications

References 6 publications

Performance of oil palm frond gasification using medium‐scale downdraft gasification for electricity generation

Performance of oil palm frond gasification using medium‐scale downdraft gasification for electricity generation

Pre-treatment of oil palm frond biomass via extensive high temperature drying for gasification process

On the Diversification of Feedstock in Gasification of Oil Palm Fronds

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