Down Draft Gasification Modelling and Experimentation of Some Indigenous Biomass for Thermal Applications

Dutta, Parama; Pandey, Vivek Kumar; Das, Ashutosh; Sen, S.; Baruah, D.C.

doi:10.1016/j.egypro.2014.07.246

Cited by 53 publications

(18 citation statements)

References 19 publications

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“….973 ×10 -5 17254.4 -9061227 2 1.068×10 -3 10224.4 -6123081 81 3 5.7×10 5 Table 3-Optimum values of non-isothermal pyrolysis [18]. Figure 5-Comparison for gas volumetric composition (vertical axis) between the present work and other experimental work for same (feedstock, , and MC), (a) Rubber wood [27], (b) Wood pellets [36], (c) rice husk [37], (d) Bamboo [25], (e) Neem [25], and (f) saw dust [7] Figure 6-Comparisons between the experimental [28] and present work for the tar yield in producer gas.…”

Section: List Of Figures and Tablesmentioning

confidence: 86%

“…For example, it was reported in [16] that the height of reduction reduces with an increasing moisture content and air-to-fuel ratio. Figure 3(a) shows the relation between the moisture content and the reduction zone height for Gulmohar, Bamboo, and Neem [25]. It is clearly seen that as the moisture content increases, the height of the reduction zone decreases.…”

Section: Optimum Height Of the Reduction Zonementioning

confidence: 99%

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An integrated kinetic model for downdraft gasifier based on a novel approach that optimises the reduction zone of gasifier

Salem

Paul

2018

Biomass and Bioenergy

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Section: List Of Figures and Tablesmentioning

confidence: 86%

Section: Optimum Height Of the Reduction Zonementioning

confidence: 99%

An integrated kinetic model for downdraft gasifier based on a novel approach that optimises the reduction zone of gasifier

Salem

Paul

2018

Biomass and Bioenergy

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“…Modelling is used to simulate gasifier behaviour at different working conditions. Researchers used equilibrium models [9], and [10] based on one global reaction mechanism to predict the product gas composition and gasification temperature at some extend. However, equilibrium models are less accurate compared to kinetic models, and it also gives an over prediction for the higher heating value and H2 output with lower amounts of CO [11].…”

Section: Introductionmentioning

confidence: 99%

Detailed Kinetic Modelling for Tar Species Evolution in a Downdraft Gasifier

Salem¹,

paul²

2019

International Conference on Energy Harvesting, Storage, and Transfer

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Biomass is being used widely for energy production in various ways. One of the main schemes for energy production from biomass is gasification, and a powerful tool for optimising the behaviour of biomass gasifiers and also obtaining the required design for specific working conditions is the modelling. An integrated kinetic model was built by the authors ([1], and [2]), which enabled to simulate, design and optimise the processes of downdraft biomass gasifiers for the production of high quality syngas. In the current research presented in this paper, the kinetic code has been extended by including detailed chemical mechanisms for the tar evolution and formation inside the gasifier. The model incorporated the evolution of 4 main tar species from pyrolysis to combustion and gasification with the formation and kinetic reaction rates of benzene, naphthalene, toluene, and phenol tar compounds. The effect of varying moisture content (MC) and equivalence ratio (ER) is studied to find out the optimum working conditions leading to the reduction of tar amount in the producer gas from downdraft gasifiers. The results reveals that moderate ER of 0.3, with lower MC<10%, leads to the production of higher quality syngas with lower tar amounts.

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“…The techniques used in the conversion of the fuels to usable forms of energy are different and one of them is the biomass gasification technology. Out of these biomass gasification technologies, the fixed bed downdraft gasifier is more preferable due to low entrainment of particulates and lower tar content in the syngas as compared to other gasifier types [2]. The biomass material is mainly composed of cellulose, hemicellulose, lignin, and some extractives [3].…”

Section: Introductionmentioning

confidence: 99%

The Physical and Chemical Properties of Fine Carbon Particles-Pinewood Resin Blends and Their Possible Utilization

Melapi

Mamphweli

Katwire

et al. 2015

Journal of Chemistry

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The application of biomass gasification technology is very important in the sense that it helps to relieve the dwindling supply of natural gas from fossil fuels, and the desired product of its gasification process is syngas. This syngas is a mixture of CO and H2; however, by-products such as char, tar, soot, ash, and condensates are also produced. This study, therefore, investigated selected by-products recovered from the gasification process of pinewood chips with specific reference to their potential application in other areas when used as blends. Three samples of the gasification by-products were obtained from a downdraft biomass gasifier system and were characterized in terms of chemical and physical properties. FTIR analysis confirmed similar spectra in all char-resin blends. For fine carbon particles- (soot-) resin blends, almost the same functional groups as observed in char-resin blends appeared. In bomb calorimeter measurements, 70% resin/30% char blends gave highest calorific value, followed by 50% resin/50% soot blends with values of 35.23 MJ/kg and 34.75 MJ/kg consecutively. Provided these by-products meet certain criteria, they could be used in other areas such as varnishes, water purification, and wind turbine blades.

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Down Draft Gasification Modelling and Experimentation of Some Indigenous Biomass for Thermal Applications

Cited by 53 publications

References 19 publications

An integrated kinetic model for downdraft gasifier based on a novel approach that optimises the reduction zone of gasifier

An integrated kinetic model for downdraft gasifier based on a novel approach that optimises the reduction zone of gasifier

Detailed Kinetic Modelling for Tar Species Evolution in a Downdraft Gasifier

The Physical and Chemical Properties of Fine Carbon Particles-Pinewood Resin Blends and Their Possible Utilization

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