Drying Kinetics of Indonesian Peat

Palamba, Pither; Ramadhan, Mohamad Lutfi; Pamitran, Agus Sunjarianto; Prayogo, Gatot; Kosasih, Engkos Achmad; Nugroho, Yulianto Sulistyo

doi:10.14716/ijtech.v9i5.805

Cited by 12 publications

(6 citation statements)

References 16 publications

(19 reference statements)

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“…Higher activation energy values for agricultural peat suggest that agricultural peat requires more energy in comparison to virgin peat to undergo the same process. The activation energy of virgin peat indicated that it was easier for the peat to reach oxygen (Palamba et al, 2018). In simpler terms, virgin peat exhibits a higher flammability contrasted with agricultural peat.…”

Section: Combustion Of Virgin Peatmentioning

confidence: 99%

Thermal Decomposition and Combustion Analysis of Malaysian Peat Soil Samples Using Coats Redfern Model-free Method

Musa,

Jamil,

Mohd Tohir

et al. 2024

JST

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This research investigates the thermal decomposition behaviour of Malaysian peat soil through thermogravimetric analysis at varying heating rates. The study aims to analyse the thermal kinetics of decomposition for distinct peat soil types under inert and oxidative atmospheres while considering the role of available oxygen. The investigation encompasses virgin and agricultural peat, employing a non-isothermal thermogravimetric analysis technique to evaluate thermal decomposition characteristics and compute kinetic parameters using the Coats Redfern model-free approach. The pyrolysis profiles reveal three primary stages: moisture evaporation (30–180°C), organic component decomposition (200–500°C), and mineral decomposition (600–800°C). Virgin peat experiences a 43% mass loss during pyrolysis, while agricultural peat shows a 46% mass loss, emphasising insights into thermal behaviour and consistent decomposition patterns across peat types. Combustion profiles exhibit three main stages: dehydration (30–180°C), oxidative pyrolysis transforming organic matter into volatiles and char (200–300°C), and subsequent char oxidation (300–500°C). The study determines average activation energy trends, measuring 14.87 kJ/mol for virgin peat and 5.37 kJ/mol for agricultural peat under an inert atmosphere, and 28.89 kJ/mol for virgin peat and 36.66 kJ/mol for agricultural peat under an oxidative atmosphere. The research introduces an innovative two-step reaction model elucidating peat thermal decomposition kinetics (excluding dehydration), including a discussion on the impact of oxygen availability on kinetic parameters. These findings essential peat fire smouldering modelling, contributing to peat combustion behaviour for effective strategies to reduce peat fire risks.

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Section: Combustion Of Virgin Peatmentioning

confidence: 99%

Thermal Decomposition and Combustion Analysis of Malaysian Peat Soil Samples Using Coats Redfern Model-free Method

Musa,

Jamil,

Mohd Tohir

et al. 2024

JST

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“…Indonesia has the largest peatland area in the tropics, especially on the islands of Sumatra, Kalimantan, and Papua (Palamba et al, 2018). Indonesia's peatland area is estimated at 21 million hectares, which covers 70% of the total peatland area in Southeast Asia and 50% of the total tropical peatland area in the world (Bay et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…However, the availability of suitable land for infrastructure development is limited (Ramdhan, 2018). This situation often occurs, especially on the islands of Sumatra, Kalimantan, and Papua, which have a significant distribution of peatlands (Palamba et al, 2018). Therefore, infrastructure development on peatlands is often unavoidable (Waruwu et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Bacteria Pseudomonas taiwanensis as a decomposing agent of peat fiber

Gulo,

Amalia,

Mase

et al. 2023

J. Edubiotik

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Efforts are needed to accelerate the decomposition of peat fiber to reduce the fiber content through bioaugmentation using Pseudomonas taiwanensis bacteria so that it can reduce the high-water content of peat fiber. The research aimed to determine the effect of adding Pseudomonas taiwanensis bacteria on the decomposition of peat fiber. This research is a laboratory experimental research. The research sampling location was in Bereng Bengkel Village, Palangkaraya. The parameters observed included fiber content, fiber size distribution, and peat fiber decomposition speed following the Peat Testing Manual. The research instrument was an observation sheet for fiber content, size distribution, and peat fiber decomposition speed. Research data was analyzed using descriptive statistical analysis. The results showed that adding 15% Pseudomonas taiwanensis bacteria with a curing period of 28 days in fibrous peat resulted in the highest reduction in fiber content, from the initial condition of 61.14% to 12.33%. This variation also shows a decrease in coarse and medium fiber content and a significant increase in fine fiber content. The decomposition rate for this variation shows good consistency. The conclusion was that adding 15% Pseudomonas taiwanensis bacteria with a curing period of 28 days showed optimal results in accelerating the decomposition of peat fiber through the bioaugmentation method.

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“…Peat fires are related to the opening of agricultural land so that peat becomes very dry and burning. This fire phenomenon is caused by smoldering combustion, where the burning is moving slowly, lowtemperature, does not form a flame, supported by heat from oxygen that burns fuel [8,9], and drying kinetic properties of the peat [10]. Because of that, the results of burning smoldering against peat are very poisonous and often not detected, making it difficult to overcome the fire.…”

Section: Introductionmentioning

confidence: 99%

Thermal Imaging Study on The Effect of Permeability on Smouldering Behaviour of a Tropical Peat

Pratantyo

Prayogo

Pamitran

et al. 2021

ARFMTS

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Smouldering is a slow-burning, low-temperature, flameless combustion, and frequently happens in peatland fires. The smouldering spread occurs because of the parameter achievement in oxygen supply, generated heat, and heat released to the environment. The condition of porous and fibrous peat soils makes oxygen supply easily happens. The difficulty of getting to the location of the burning peatland is one of the problems to extinguish the fire. This study aims to observe with thermal imaging study the effect of peat permeability on smouldering behaviour of a tropical peat sample. Mechanical compaction was applied to reduce permeability and pore value in the central of the peat soil. Then, peat soil is ignited to create the smouldering propagation through the compacted peat area. The combustion process that occurs on the surface is observed by a visual camera and an Infrared FLIR Thermal Camera. The initial results showed a reduction in the smouldering spread rate on the compacted soil region as compared to the undisturbed peat smouldering region. Nevertheless, smouldering combustion of peat still occurred in all regions of the reactor, once the smouldering front could penetrate the compacted region.

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Drying Kinetics of Indonesian Peat

Cited by 12 publications

References 16 publications

Thermal Decomposition and Combustion Analysis of Malaysian Peat Soil Samples Using Coats Redfern Model-free Method

Thermal Decomposition and Combustion Analysis of Malaysian Peat Soil Samples Using Coats Redfern Model-free Method

Bacteria Pseudomonas taiwanensis as a decomposing agent of peat fiber

Thermal Imaging Study on The Effect of Permeability on Smouldering Behaviour of a Tropical Peat

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