High Quality Syngas Production with Supercritical Biomass Gasification Integrated with a Water–Gas Shift Reactor

Sarafraz, M.M.; Safaei, Mohammad Reza; Jafarian, Mehdi; Goodarzi, Marjan; Arjomandi, Maziar

doi:10.3390/en12132591

Cited by 30 publications

(11 citation statements)

References 56 publications

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“…Moreover, the Profitability Index (PI) of the CARSOXY cycle is 1.72, while it is only 1.28 for the air-driven cycle [19]. Moreover, as reported in the literature [19], CARSOXY gas turbine cycles facilitate excellent opportunity to utilize water-gas-shift (WGS) reactors to reduce carbon monoxide emissions and potentially increase syngas production if integrated with biomass gasification, as reported by the reference [26]. Other integration scenarios also demonstrate high potential to couple CARSOXY power plant with liquid chemical looping gasification (LCLG) systems such as those reported by the references [27,28].…”

Section: Setupmentioning

confidence: 99%

Parametric Study of Various Thermodynamic Cycles for the Use of Unconventional Blends

2020

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This paper aims to conduct a parametric study for five gas turbine cycles (namely, simple, heat exchanged, free turbine and simple cycle, evaporative, and humidified) using a CO2-argon-steam-oxyfuel (CARSOXY) mixture as a working fluid to identify their optimal working conditions with respect to cycle efficiency and specific work output. The performance of the five cycles using CARSOXY is estimated for wet and dry compression, and a cycle is suggested for each range of working conditions. The results of this paper are based on MATLAB codes, which have been developed to conduct the cycle analysis for CARSOXY gas turbines, assuming a stoichiometric condition with an equivalence ratio of 1.0. Analyses are based on the higher heating value (HHV) of methane as fuel. This paper also identifies domains of operating conditions for each cycle, where the efficiency of CARSOXY cycles can be increased by up to 12% compared to air-driven cycles. The CARSOXY heat exchanged cycle has the highest efficiency among the other CARSOXY cycles in the compressor pressure ratio domain of 2–3 and 6–10, whereas, at 3–6, the humidified cycle has the highest efficiency. The evaporative cycle has intermediate efficiency values, while the simple cycle and the free turbine-simple cycle have the lowest efficiencies amongst the five cycles. Additionally, a 10% increase in the cycle efficiency can be theoretically achieved by using the newly suggested CARSOXY blend that has the molar fractions of 47% argon, 10% carbon dioxide, 10% H2O, and 33% oxyfuel at low compressor inlet temperatures, thus theoretically enabling the use of carbon capture technologies.

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Section: Setupmentioning

confidence: 99%

Parametric Study of Various Thermodynamic Cycles for the Use of Unconventional Blends

2020

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“…In addition, the energetic and exergy performance of a new configuration of liquid chemical looping gasification (LCLG) [8] and syngas production with supercritical biomass gasification [9] and investigations of toluene methylation to para-xylene [10]. There has been a significant shift in harnessing the heat and fluids conversion for various HVAC applications [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Thermophysics Analysis of Office Buildings with a Temperature–Humidity Coupling Strategy Under Hot-Arid Climatic Conditions

Bensafi

Ameur²,

Kaid

et al. 2021

Int J Thermophys

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This study investigates the determining parameters of thermal comfort of office in an arid hot-arid environment of Bechar, located in the northwestern region of Algeria, in which the vertical walls of the room and the roof are subjected to solar irradiations and the floor is considered to be adiabatic. The solar flux is calculated by the ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers) method. The predicted results are validated against the experimental results of the meteorological station of the ENERGARID research laboratory at the University of Bechar (Algeria). The characteristics of the ambient air flow are performed by using the computational fluid dynamics (CFD) software (Fluent). The flow fields, thermal fields, and humidity are investigated. An elaborated computer program (with Delphi language) is utilized to evaluate the temperature–humidity coupling as the most essential factors of the thermal comfort. A significant impact of dynamic temperatures and humidity on thermal comfort has been observed, especially in this hot-arid environment. Besides, a considerable effect of the flow velocity has been remarked. From the obtained results and to provide the best thermal comfort in such arid regions, the range of air velocity inside the building is recommended to be between 0.2 m·s−1 and 0.3 m·s−1.

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“…Gasification is an attractive alternative technology to achieve high quality syngas. This technology is a thermal conversion process that converts biomass into synthetic gas [17]. Unlike biomass materials, gaseous fuels can be distributed by pipeline from the plant to elsewhere.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of combustion of low-calorific producer gas from small scale biomass gasification within porous burner

Jirakulsomchok¹,

Wongchang²,

Prasartthong³

2021

Journal of Thermal Engineering

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The aim of this experimental study is to investigate the combustion low-calorific producer gas within porous burner. The small scale downdraft biomass gasification for rural area was performed to produce gaseous fuel. Three types of wood in Thailand were used as raw materials to produce producer gas, i.e. Acacia-mangium, White popinac and Eucalyptus. The low heating values of producer gas were in the range of 3800-4232 kJ.kg -1 that are difficult to burn in conventional burner. Tapered and bilayer porous burners were used to overcome this limitation. The effects of air preheating modes, equivalence ratio and firing rate on thermal structure and pollutant emission were revealed. The results showed that the complete combustion with low emission of low-calorific producer gas was accomplished with low firing rate in the range of 2.8 -3 kW. Both CO and NO x emission were less than 160 ppm for all of tests. The combustion within tapered porous burner emitted small CO emission nearly zero for all of equivalence ratios. The tar reduction was 99.5% by combustion within porous burner.

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High Quality Syngas Production with Supercritical Biomass Gasification Integrated with a Water–Gas Shift Reactor

Cited by 30 publications

References 56 publications

Parametric Study of Various Thermodynamic Cycles for the Use of Unconventional Blends

Parametric Study of Various Thermodynamic Cycles for the Use of Unconventional Blends

Thermophysics Analysis of Office Buildings with a Temperature–Humidity Coupling Strategy Under Hot-Arid Climatic Conditions

Experimental study of combustion of low-calorific producer gas from small scale biomass gasification within porous burner

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