Thermal Decomposition Behavior Study of Two Agricultural Solid Wastes for Production of Bio-Fuels by Pyrolysis Technology

Parveen, Momtaz; Islam, Md. Robiul; Haniu, Hiroyuki

doi:10.1299/jtst.6.132

Cited by 14 publications

(3 citation statements)

References 15 publications

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“…As a result, new energy sources, which are renewable and environmentally friendly, have attracted interest. Biomass energy technology amongst others is a promising option (1,2) .…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Investigation of Intra-Particle Heat Transfer and Tar Decomposition during Pyrolysis of Wood Biomass

Okekunle

Pattanotai

Watanabe

et al. 2011

JTST

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Pyrolysis of cylindrical woody biomass has been investigated both numerically and experimentally with emphasis on intra-particle heat transfer and tar decompostion. In experiment, wood cylinder of 8 mm diameter and 9 mm length was pyrolyzed in an infrared reactor exposed to both convective and radiative heat fluxes in argon environment. The final reactor temperature was 973 K, and heating rate was 5, 10 and 30 K/s. Three K-type thermocouples were located in the sample to measure intra-particle temperature history. The weight fraction history and intra-particle temperature profiles were measured at different runs. Tar was obtained at a cold trap. In calculation, a two-dimensional, unsteady state single particle model was developed and used to simulate the pyrolysis process. Wood cylinder was modeled as an isotropic porous solid. Solid mass conservation equations were solved by using first-order Euler Implicit Method. Gas phase mass conservation equations and energy conservation equation were discretised by finite volume method. In order to investigate the effect of intra-particle heat transfer, simulations were carried out, first, by considering temperature gradient and second, by assuming uniform temperature within the sample. When temperature gradient was considered, simulation results were in good agreement with experimental data. When uniform intra-particle temperature was used in the simulation, simulation results were quite different from experimental measurements, the degree of difference increasing with increase in heating rate. Both calculation and experiment showed tar yield decreased with increasing heating rate. This was because tar formation reaction and intra-particle tar decomposition reactions were enhanced by increase in heating rate but the latter was dominant. It was shown that intra-particle heat transfer and tar decomposition played an important role in pyrolysis characteristics of wood cylinder.

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“…As a result, new energy sources, which are renewable and environmentally friendly, have attracted interest. Biomass energy technology amongst others is a promising option (1,2) .…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Investigation of Intra-Particle Heat Transfer and Tar Decomposition during Pyrolysis of Wood Biomass

Okekunle

Pattanotai

Watanabe

et al. 2011

JTST

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“…The tamarind seed is pulverized into TSP, and it is used as a chemical for making a firecracker. The chemical composition of the TSP is as follows, Carbon (47.76 %) and Oxygen (42.39 %) (Parveen et al, 2011). It also contains polysaccharides, tannins, proteins and has a gross calorific value of 21 MJ/Kg.…”

Section: Methodsmentioning

confidence: 99%

Investigation of emission behaviour for tamarind seed powder-based firecracker

Manikandan

Shanmugavel

2022

JART

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In the fireworks industry during the bursting of firecrackers, people are affected by health issues by inhaling the chemical particulates matter. When bursting of a firecracker, fuel is mixed with oxygen and releases energy in the form of heat and also contaminated gases. Tamarind seed powder-based fire crackers have been taken for analysis and an emission test was performed. For existing firecrackers, the rate of emissions like CO, CO2, HC, O2, PEF is in the range of 0.032, 0.020, 15, 28.13, and 0.546. For Tamarind seed powder-based firecracker the emission range is reduced compared to the normal firecracker and the emission test results are 0.018, 0.10, 6, 22.12, and 0.546. From the emission test results, the discharge rate of CO and HC, and O2 is reduced for modified firecracker composition. So the Tamarind seed powder-based firecracker influences less emission rate and makes the environment cleaner.

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“…Biomass has continued to attract interest as a viable alternative (Jahirul et al, 2012). Energy crops, agricultural residues, solid and municipal wastes have been identified as potential biomass feedstock for biofuels production through biochemical and thermochemical processes (Parveen et al, 2011). Thermochemical processes are used quite often because they are capable of giving solid, liquid and gaseous biofuels simultaneously (Di Blasi et al, 1999; , Babu and Chaurasia, 2004).…”

Section: Introductionmentioning

confidence: 99%

Effect of Chicken Type and Reactor Temperature on Biofuel Yields from Pyrolysis of Poultry Litter

Okekunle

Itabiyi

Olafimihan

et al. 2019

ESJ

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Efficient management of poultry litter resulting from the ever growing agricultural industry is key to saving the global environment. In this study, effect of chicken type and reactor temperature on biofuel yields from pyrolysis of poultry litter has been studied. Samples of fresh droppings of broiler and layer chickens were collected from the poultry farm of Ladoke Akintola University of Technology, Ogbomoso, SouthWestern Nigeria. The samples were sun dried for two days and afterwards oven-dried at a temperature of 105 o C for 10 minutes. Samples of 40 g each were pyrolyzed at four different reactor temperatures (300, 400, 500 and 600 o C) for 15 minutes. The yield of pyro-oil and pyro-gas from the litter of the two chicken types increased with reactor temperature while char yield decreased with it. Pyro-oil yield from broiler litter was higher than that from layer litter at all temperatures while pyro-gas yield from layer litter was higher than that from broiler litter at all the conditions studied. The highest yield of pyro-oil (65.10% at 600 o C) was obtained from broiler litter while the highest yields of char (42.12% at 300 o C) and pyro-gas (25.7% at 600 o C) were recorded for layer litter. The presence of alkali metals in different proportions in broiler and layer litter was identified to have influenced pyrolysis secondary reactions. Cellulose, hemicellulose and lignin may also be in different percentages in the two types of chicken litter.

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Thermal Decomposition Behavior Study of Two Agricultural Solid Wastes for Production of Bio-Fuels by Pyrolysis Technology

Cited by 14 publications

References 15 publications

Numerical and Experimental Investigation of Intra-Particle Heat Transfer and Tar Decomposition during Pyrolysis of Wood Biomass

Numerical and Experimental Investigation of Intra-Particle Heat Transfer and Tar Decomposition during Pyrolysis of Wood Biomass

Investigation of emission behaviour for tamarind seed powder-based firecracker

Effect of Chicken Type and Reactor Temperature on Biofuel Yields from Pyrolysis of Poultry Litter

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