Investigation of yields and qualities of pyrolysis products obtained from oil palm biomass using an agitated bed pyrolysis reactor

Palamanit, Arkom; Khongphakdi, Phonthip; Tirawanichakul, Yutthana; Phusunti, Neeranuch

doi:10.18331/brj2019.6.4.3

Cited by 61 publications

(20 citation statements)

References 48 publications

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“…The results directly correlated with feedstock types, whereas pyrolysis or copyrolysis temperatures also could have been manipulated. Based on results from this study, it can be seen that the moisture content still present in the biochar was not zero, even when pyrolyzed at a high temperature, which agrees with previous studies by Kabir et al (2017) and Palamanit et al (2019). Both of these prior studies reported moisture contents in the range 2.40-4.42 (wt%).…”

Section: Proximate Analysis and Bulk Densitysupporting

confidence: 89%

“…However, the moisture content had a certain impact on biochar yield, while a higher moisture in the biomass was favorable for the biochar yield from processing at a higher pressure (Nanda et al 2016). The volatile matter in biochar was reduced as temperature increased, as this is the comparatively light molecular weight components in liquid or gas form (Palamanit et al 2019). It can be seen that the volatile matter in biochar still remained in the range 4.32-14.40 (wt%), indicating that the pyrolysis was incomplete while full decomposition would need more time or higher temperatures.…”

Section: Proximate Analysis and Bulk Densitymentioning

confidence: 99%

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Characteristics and agrarian properties of biochar derived from pyrolysis and co-pyrolysis of rubberwood sawdust and sewage sludge for further application to soil improvement

Ali

Palamanit

Techato

et al. 2021

Preprint

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This study investigated the characteristics of biochars derived from pyrolysis of rubberwood sawdust and sewage sludge, and co-pyrolysis of these feedstocks at the ratios of 50:50 and 75:25. All feedstocks were pyrolyzed at 550°C in slow pyrolysis with a moving bed pyrolysis reactor. Then, the investigated characteristics of biochar samples were determined and are reported. The rubberwood sawdust biochar (RWSB) had a higher in carbon content (86.70 wt%) and was lower in oxygen content (7.89 wt%), while sewage sludge biochar (SSB) had a higher ash content (65.61 w%) and a low carbon content (24.27 wt%). The weight losses of biochars were observed in TGA while the DTG graphs show degradation rate of biochar produced in pyrolysis specific conditions. RWSB had a lower content of Si, Fe, K, Na and P than SSB as observed by XRF. The pH of RWSB, SSB and the blends (50:50, 75:25) of biochars was in the range 8.41–10.02. High carbon content of the biochar confirms potential for its use in carbon sequestration. The large pore volumes and specific surface areas of biochars were found by SEM and BET. The available functional groups in biochars were C–O, C = C, and C–H as confirmed by FTIR. Water holding capacity (WHC) and water releasing ability (WRA) of RWSB, SSB, and the blends (50:50 and 75:25) of biochars were 1.01–3.08 (mL/g) and 1.19–52.42 (wt%), respectively. In this study, our results show that blending woody and non-woody based biochars can help address nonpoint source contaminants in environment. So, these all findings should develop as tune to parameters of thermal degradation of biomass and bio-biowaste with sustain and eco-friendly biochar production.

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Section: Proximate Analysis and Bulk Densitysupporting

confidence: 89%

Section: Proximate Analysis and Bulk Densitymentioning

confidence: 99%

Characteristics and agrarian properties of biochar derived from pyrolysis and co-pyrolysis of rubberwood sawdust and sewage sludge for further application to soil improvement

Ali

Palamanit

Techato

et al. 2021

Preprint

Self Cite

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“…17)-2.00 mm (ref. 18) particle size, and dehydrated in a hot air oven at 105 C to reduce the moisture content to approximately 8.5% wet basis. 17 The materials for pyrolysis need controlled moisture or water amount that during pyrolysis results in steam reforming.…”

Section: Methodsmentioning

confidence: 99%

“…It is used to fabricate dielectric lms for capacitors and metal-oxide-semiconductor (MOS) transistors. 18 Crystals could form with chemical or ionic bonds. In the presence of an electric eld, electronic polarization and atomic polarization are the two dominant types that play important roles in silica and oxide compounds, while dipolar polarization is usually not present in silica, oxides or silicate compounds.…”

Section: Dielectric Propertiesmentioning

confidence: 99%

Activated carbon and palm oil fuel ash as microwave absorbers for microwave-assisted pyrolysis of oil palm shell waste

et al. 2020

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“…Bio-oil or pyrolytic oil with an appropriate water content can be used directly as fuel in boilers, upgraded into fuel for internal combustion engines, or turned into a high-value product for food and chemical processes (Bridgwater, 2012;Bridgwater and Peacocke, 2000). Besides, the bio-char and pyrolytic gas can be used as biofuels to generate heat or power for use in pyrolysis or other processes (Palamanit et al, 2019). There is no need to post-treatments for both of bio-char and pyrolytic gas and they can be utilized directly as heat source through the direct burning.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Pyrolytic Gas Production Generated by Slow Pyrolysis Using a Fixed-Bed Prolyzer

Zahra

El-Wahab

Tawfik

2021

Zagazig Journal of Agricultural Research

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The biomass slow pyrolysis using the fixed-bed pyrolyzer is a simple and inexpensive technique that can be used in small farms comparing to the complex and expensive technology of the fast pyrolysis. However, slow pyrolysis primary produces bio-char and lower yields of bio-oil and pyrolytic gas. Thus, there is urgent need to enhance pyrolytic gas production under the slow pyrolysis conditions on the account of bio-char due to the advantage of using the gas in wide applications in farm. Hence, this work aims to fabricate and operate a small-scale fixed bed pyrolyzer to enhance the pyrolytic gas productivity from the ground pieces of Mango trees Pruning Logs (MPLs) under slow pyrolysis conditions (heating rate of 0.01-1 ºC/s, vapor residence time of 4 min.) and full absence of oxygen. The pyrolytic gas production was investigated under different final pyrolysis temperatures of 300,350 and 400°C, particle length ranges of 1-5, 10-15 and 20-25 mm. The obtained results revealed that, the increase of pyrolysis temperature from 300-400°C and decrease of the ground MPL length from 20-25 to 1-5 mm was accompained with explicit increment in the pyrolytic gas concentration, gas yield, higher heating value of pyrolytic gas (HHV g ) and energy conversion efficiency by about 34.28%, 61.15%, 12.68% and 66.10%, respectively along to high concentrations of the combustible gases )e.i. H 2 , CH 4 ). Additionally, the optimal cost per energy unit of pyrolytic gas (0.085 EGP/MJ or 0.005 $/MJ) is lower than cost per energy unit of the natural gas and LPG by about 11.45% and 75.07%, respectively.

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Investigation of yields and qualities of pyrolysis products obtained from oil palm biomass using an agitated bed pyrolysis reactor

Abstract: Please cite this article as: Palamanit A., Khongphakdi P., Tirawanichakul T., Phusunti N. Investigation of yields and qualities of pyrolysis products obtained from oil palm biomass using an agitated bed pyrolysis reactor.

Cited by 61 publications

References 48 publications

Characteristics and agrarian properties of biochar derived from pyrolysis and co-pyrolysis of rubberwood sawdust and sewage sludge for further application to soil improvement

Characteristics and agrarian properties of biochar derived from pyrolysis and co-pyrolysis of rubberwood sawdust and sewage sludge for further application to soil improvement

Activated carbon and palm oil fuel ash as microwave absorbers for microwave-assisted pyrolysis of oil palm shell waste

Enhancing the Pyrolytic Gas Production Generated by Slow Pyrolysis Using a Fixed-Bed Prolyzer

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