Exergy analysis of biomass-to-synthetic natural gas (SNG) process via indirect gasification of various biomass feedstock

Vitasari, CR Caecilia; Juraščík, Martin; Ptasinski, KJ Krzysztof

doi:10.1016/j.energy.2010.09.026

Cited by 96 publications

(48 citation statements)

References 13 publications

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“…Gasification is the main source of irreversibility in the system which is in agreement with findings of Vitasari et al [11]. The exergy loss due to the drying is insignificant at low feed biomass moisture contents of below 30% which is also in line with the findings of Vitasari et al [11]. However, the exergy loss increases with feed biomass moisture contents dramatically and the exergy loss from drying is higher than the gasification with feed biomass moisture content is at 50% or higher.…”

Section: The Energy and Exergy Analysis Of The Systemsupporting

confidence: 82%

“…The total exergy loss by the system increases significantly by increasing the feed biomass moisture content. Gasification is the main source of irreversibility in the system which is in agreement with findings of Vitasari et al [11]. The exergy loss due to the drying is insignificant at low feed biomass moisture contents of below 30% which is also in line with the findings of Vitasari et al [11].…”

Section: The Energy and Exergy Analysis Of The Systemsupporting

confidence: 82%

“…For calculating the exergy efficiency of an integrated system; there are two approaches. In one approach, the system is assumed as a black box and exergy efficiency is calculated as the ratio of total exergy of useful product to the total exergy input [11,37]. In another approach, the role of individual unit operations in total exergy efficiency of the integrated system is determined [38,39] which is used in this study.…”

Section: Energy and Exergy Efficiencies Of An Integrated Systemmentioning

confidence: 99%

“…They concluded that while heat consumption is similar in different systems, the irreversibility rate depends on the system configuration and temperature of the drying medium. Vitasari et al [11] conducted an exergy analysis on biomass to synthetic natural gas via DFB biomass gasification system. However, their focus was on a methanation reactor rather than DFB biomass gasification.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Analysis of Operation Parameters in a Dual Fluidized Bed Biomass Gasifier Integrated with a Biomass Rotary Dryer: Development and Application of a System Model

Puadian

Pang

2014

Energies

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An integrated system model was developed in UniSim Design for a dual fluidized bed (DFB) biomass gasifier and a rotary biomass dryer using a combination of user-defined and built-in unit operations. A quasi-equilibrium model was used for modelling biomass steam gasification in the DFB gasifier. The biomass drying was simulated with consideration of mass and energy balances, heat transfer, and dryer's configuration. After validation using experimental data, the developed system model was applied to investigate: (1) the effects of gasification temperature and steam to biomass (S/B) ratio on the gasification performance; (2) the effect of air supplied to the fast fluidized bed (FFB) reactor and feed biomass moisture content on the integrated system performance, energy and exergy efficiencies. It was found that gasification temperature and S/B ratio have positive effects on the gasification yields; a H 2 /CO ratio of 1.9 can be achieved at the gasification temperature of 850 °C with a S/B ratio of 1.2. Consumption of excessive fuel in the system at higher biomass feed moisture content can be compensated by the heat recovery such as steam generation while it has adverse impact on exergy efficiency of the system.

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Section: The Energy and Exergy Analysis Of The Systemsupporting

confidence: 82%

Section: The Energy and Exergy Analysis Of The Systemsupporting

confidence: 82%

Section: Energy and Exergy Efficiencies Of An Integrated Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of Operation Parameters in a Dual Fluidized Bed Biomass Gasifier Integrated with a Biomass Rotary Dryer: Development and Application of a System Model

Puadian

Pang

2014

Energies

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show abstract

“…At high CO 2 partial pressure, SNG upgrade by absorption using physical solvents becomes attractive [7]. The Selexol process (using DEPG, a mixture of dimethyl ethers of polyethylene glycol) has been considered as a feasible alternative to membrane process for CO 2 capture from SNG [7,9,10].…”

Section: Introductionmentioning

confidence: 99%

Novel pressure and temperature swing processes for CO2 capture using low viscosity ionic liquids

Zubeir

Lacroix

Meuldijk

et al. 2018

Separation and Purification Technology

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Substitute Natural Gas ( SNG )

2015

Efficiency of Biomass Energy

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Exergy analysis of biomass-to-synthetic natural gas (SNG) process via indirect gasification of various biomass feedstock

Cited by 96 publications

References 13 publications

Analysis of Operation Parameters in a Dual Fluidized Bed Biomass Gasifier Integrated with a Biomass Rotary Dryer: Development and Application of a System Model

Analysis of Operation Parameters in a Dual Fluidized Bed Biomass Gasifier Integrated with a Biomass Rotary Dryer: Development and Application of a System Model

Novel pressure and temperature swing processes for CO2 capture using low viscosity ionic liquids

Substitute Natural Gas ( SNG )

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