Modeling of biomass gasification: A review

Baruah, Dipal

doi:10.1016/j.rser.2014.07.129

Cited by 307 publications

(161 citation statements)

References 39 publications

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“…(2) and maximum (3) of gas evolution variants and for the period of residual char gasification (1, right axis). b) Equilibrium pressures of CO2 for MgCO3 (Mg, right axis) and CaCO3 (Ca, left axis) compared with partial pressures of CO2 for the steady state (2) and maximum (3) of gas evolution variants and for the period of residual char gasification (1) In the next Figure 5b, the equilibria between carbonates and oxides of calcium and magnesium are compared with partial pressures of CO 2 characteristic for discussed variants of experimental situation. It should be emphasized that equilibrium pressures over magnesium and calcium carbonates are very different -equilibrium constant of the reaction MgCO 3 = MgO + CO 2 increases from 934 at 600ºC to 2.19·10 4 at 900ºC (right axis in Fig.…”

Section: Hsc Software Calculations and Discussionmentioning

confidence: 99%

“…Fundamentals of biomass pyrolysis as well as technologies of gasification and gas cleaning have been reviewed many times, for example by Van de Velden et al [1], Baruah and Baruah [2], Sharma et al [3], Heidenreich and Foscolo [4], Ruiz et al [5], Abdoulmoumine et al [6], Shen and Yoshikawa [7], Chan and Tanksale [8], Xu et al [9], Lan et al [10]. Quality of biomass syngas is crucial for the syngas applications, particularly in small or medium scale units.…”

Section: Introductionmentioning

confidence: 99%

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Steam gasification of oat with conversion of tars on clay catalyst and gas cleaning by condensation of steam

Zabłocka-Malicka

Szczepaniak

Zielińska

et al. 2016

Ecological Chemistry and Engineering S

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Gasification of oat grains with steam at normal pressure has been performed in a laboratory scale. Experiments were carried out in a vertical quartz reactor, with a steady flow of the steam and immediate tars conversion at 900ºC on the catalytic bed prepared from local clay with simple additives. Condensation of steam excess enabled essential elimination of non-volatile components of the gas stream. Condensates were analyzed with GC-MS. The highest level of organic compounds was detected in experiment with non-catalytic bed of small quartz pieces (90.2 mg/15 g of oat grains) and successful decreased by 86% for original clay without additives (precursors), 94% for clay with magnesium precursor, 97% with iron and more than 99% with calcium one.

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Section: Hsc Software Calculations and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Steam gasification of oat with conversion of tars on clay catalyst and gas cleaning by condensation of steam

Zabłocka-Malicka

Szczepaniak

Zielińska

et al. 2016

Ecological Chemistry and Engineering S

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“…Decomposition, partial oxidation, and various other chemical reactions occur during gasification, involving heat and mass transfer processes. Biomass gasification has gained attention worldwide due to its capacity to handle a wide range of biomass feedstocks and its high efficiency of energy conversion [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Air-Steam Biomass Gasification Process Based on Thermodynamic Equilibrium Model

Eri

Zhao

2017

Energies

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Abstract:In the present work, the air-steam biomass gasification model with tar has been developed based on the equilibrium constants. The simulation results based on two different models (with and without tar) have been validated by the experimental data. The model with tar can well predict the tar content in gasification; meanwhile, the predicted gas yield (GY), based on the model with tar, is much closer to the experimental data. The energy exchange between the gasifier and the surrounding has been studied based on the dimensionless heat transfer ratio (DHTR), and the relationship between DHTR and the process parameters is given by a formula. The influence of process parameters on the syngas composition, tar content, GY, lower heating value (LHV), and exergy efficiency have been researched.

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“…The process of gasification is relatively complicated and involves a large number of chemical and physical processes (Baruah and Baruah 2014). The gasification process takes place in four stages called drying, pyrolysis, oxidation, and reduction.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Parametric Study for Maximizing Heating Value of Gasification Syngas

et al. 2017

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There are a number of experimental and theoretical studies on the energy conversion of oil palm derivative biomass. Moreover, the potential of this abundant biomass residue for renewable energy in major producing countries in Southeast Asia has been well documented. In this study, the results of an equilibrium model of downdraft gasification of oil palm fronds (OPF), developed using the Aspen Plus chemical process simulator software, and its validation are presented. In addition, an optimization of the major output parameter of importance (i.e., the higher heating value of syngas) with respect to the main operating parameters (i.e., temperature, equivalence ratio (ER), and moisture content) was performed. The response surface method (RSM) was used to determine the mathematical relationship between the response of interest, which was the heating value of syngas, and the operating conditions. This method was used to further determine the conditions that would lead to optimum higher heating values of syngas. Optimum values identified by RSM were: oxidation zone temperature of 1000 °C, moisture content in the range of 4%, and an equivalence ratio of 0.35. These optimum operating conditions and the corresponding higher heating value of syngas were found to correspond with the experimental results.

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Modeling of biomass gasification: A review

Cited by 307 publications

References 39 publications

Steam gasification of oat with conversion of tars on clay catalyst and gas cleaning by condensation of steam

Steam gasification of oat with conversion of tars on clay catalyst and gas cleaning by condensation of steam

Numerical Investigation of the Air-Steam Biomass Gasification Process Based on Thermodynamic Equilibrium Model

Modeling and Parametric Study for Maximizing Heating Value of Gasification Syngas

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