Comparison of entrained flow gasification behaviour of Victorian brown coal and biomass

Sripada, Pramod; Xu, Tao; Kibria, M.A.; Bhattacharya, Sankar

doi:10.1016/j.fuel.2017.04.058

Cited by 46 publications

(31 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, several initiatives to replace fossil fuels with alternative renewable fuels have been taken into consideration (Ribeiro et al 2015). Among the various technologies for energy production from renewable sources, the biomass combustion can represent a valid alternative technology of fossil fuels (Sripada et al 2017) (Giuliano et al 2018a). Shrestha and Shakya (2012) showed that the implementation of the cost minimization energy system MARKAL, based on the market allocation framework, reduces the local pollutant emissions, improving the efficiency of the national overall energy consumption.…”

Section: Industrial Sectormentioning

confidence: 99%

Mitigation strategies for reducing air pollution

Sofia

Gioiella²,

Lotrecchiano

et al. 2020

Environ Sci Pollut Res

158

View full text Add to dashboard Cite

Today, it is increasingly recognized that air pollution hurts human health. Consequently, efficient mitigation strategies need to be implemented for substantial environmental and health co-benefits. A valid approach to reducing the air pollution effects on the environment and human health is proposed. Specific guidelines have been elucidated by differentiating them on the base of the final stakeholders (citizens, enterprises, and public authorities), of the emission sources (transport, household energy, industry, and energy generation sector, agriculture, and shipping area), and of the field of implementation (urban and extra-urban context). This paper can provide useful information for governments for the implementation of a strategic plan focused on emphasizing multi-pollutant emission reductions and overall air pollution-related risk.

show abstract

Section: Industrial Sectormentioning

confidence: 99%

Mitigation strategies for reducing air pollution

Sofia

Gioiella²,

Lotrecchiano

et al. 2020

Environ Sci Pollut Res

158

View full text Add to dashboard Cite

show abstract

“…However, for power production, instead of chemical composition, the heating value of the product gases are rather crucial. 15 The LHV and CGE of the product gases were determined using the following equations:…”

Section: Calculation Of Lhv and Cgementioning

confidence: 99%

“…22 The decrease in the LHV with increasing reactant concentration is attributed to the unreacted reactant in the syngas resulting in the lower concentration of combustible gases. 15 At 1000 C, the LHV of the syngas from steam gasification was determined to be 60%, 70% and 80% higher than that of CO 2 gasification under 10, 20 and 40 vol.% reactants, respectively. The higher heating value from steam gasification is clearly due to the H 2 and CH 4 rich syngas compared to that of CO rich syngas in CO 2 gasification.…”

mentioning

confidence: 94%

“…3,10,11 An estimated 22% higher thermal efficiency and 25% lower CO 2 emission is reported using black coal in an integrated gasification combined cycle (IGCC) power plant, resulting in the lower CO 2 emission of 370 kg/MWh e . 7,12 Numerous studies [13][14][15][16][17][18][19] have been conducted to investigate the entrained flow gasification of coal and biomass using air, oxygen, steam and CO 2 . The results of CO 2 gasification showed that the yield of CO increases whereas H 2 decreases with increasing CO 2 -to-coal ratio.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of reactant types (steam, CO ₂ and steam + CO ₂ ) on the gasification performance of coal using entrained flow gasifier

Shahabuddin

Bhattacharya

2021

Int J Energy Res

Self Cite

View full text Add to dashboard Cite

This study investigates the gasification behaviour of bituminous coal using different reactants of CO 2 , steam and a mixture of CO 2 and steam under entrained flow gasification conditions at temperatures of 1000 C and 1200 C with atmospheric pressure. The major gas constituents of the syngas were measured using online micro-GC with a model number Varian 490, whereas the minor pollutant gases were analysed using Kitagawa gas detection tubes. A maximum carbon conversion of 86% was achieved under steam gasification at a temperature of 1200 C compared to 74% from CO 2 gasification. The higher carbon conversion from steam gasification is due to the higher gasification reactivity than CO 2 gasification. At 1000 C, the lower heating value (LHV) from steam gasification was determined to be 60%, 70% and 80% higher than that of CO 2 gasification using the reactant concentrations of 10, 20 and 40 vol. %, respectively. Using a stoichiometric 50/50 ratio of CO 2 and steam, the yield of H 2 , CO and CH 4 were increased by 56%, 106% and 35% compared to that of pure CO 2 gasification. At 1000 C, the LHV under mixed reactant condition is close to the LHV from the pure steam gasification at 1200 C. In steam gasification, increasing the temperature by 200 C from 1000 C decreases the LHV by 17 and 10% using 10 and 20 vol.% steam. The higher heating value from steam gasification is due to the H 2 and CH 4 -rich syngas compared to CO-rich syngas in CO 2 gasification. The BET surface area of the solid char from steam gasification is about 17 and two times higher than that of CO 2 gasification at 1000 C and 1200 C, respectively.

show abstract

“…A variety of research papers are available in the literature that present investigation of bark as a feedstock for entrained flow gasification in different experimental and pilot units. In a paper by Sripada et al (2017), the gasification behavior of Pine bark was evaluated and compared with that of Victorian brown coal. A small‐scale experimental reactor was applied with a feeding rate of 1‐g feedstock per minute.…”

Section: Introductionmentioning

confidence: 99%

Bark as feedstock for dual fluidized bed gasifiers-Operability, efficiency, and economics

et al. 2019

View full text Add to dashboard Cite

Summary The demand for biofuels and biochemicals is expected to increase in the future, which will in turn increase the demand for biomass feedstock. Large gasification plants fueled with biomass feedstock are likely to be a key enabling technology in a resource‐efficient, bio‐based economy. Furthermore, the costs for producing biofuels and biochemicals in such plants could potentially be decreased by utilizing inexpensive low‐grade residual biomass as feedstock. This study investigates the usage of shredded tree bark as a feedstock for the production of biomethane in the GoBiGas demonstration plant in Gothenburg, Sweden, based on a 32 MWth industrial dual fluidized bed gasification unit. The plant was operated with bark feedstock for 12 000 hours during the period 2014 to 2018. Data from the measurement campaign were processed using a stochastic approach to establish the plant's mass and energy balances, which were then compared with operation of the plant with wood pellets. For this comparison, an extrapolation algorithm was developed to predict plant performance using bark dried to the same moisture content as wood pellets, ie, 8%w.b. Plant operation with bark feedstock was evaluated for operability, efficiency, and feedstock‐related cost. The gas quality achieved during the test period was similar to that obtained for operation with wood pellets. Furthermore, no significant ash sintering or agglomeration problems were observed more than 750 hours of operation. The calculated biomass‐to‐biomethane efficiency is 43% to 47% (lower heating value basis) for operation with wet bark. However, the predicted biomass‐to‐biomethane efficiency can be increased to 55%–65% for operation with bark feedstock dried to 8% moisture content, with corresponding feedstock costs in the range of 24.2 to 32.7 EUR/MWh; ie, a cost reduction of about 40% compared with wood pellets.

show abstract

Comparison of entrained flow gasification behaviour of Victorian brown coal and biomass

Cited by 46 publications

References 30 publications

Mitigation strategies for reducing air pollution

Mitigation strategies for reducing air pollution

Effect of reactant types (steam, CO ₂ and steam + CO ₂ ) on the gasification performance of coal using entrained flow gasifier

Bark as feedstock for dual fluidized bed gasifiers-Operability, efficiency, and economics

Contact Info

Product

Resources

About

Comparison of entrained flow gasification behaviour of Victorian brown coal and biomass

Cited by 46 publications

References 30 publications

Mitigation strategies for reducing air pollution

Mitigation strategies for reducing air pollution

Effect of reactant types (steam, CO 2 and steam + CO 2 ) on the gasification performance of coal using entrained flow gasifier

Bark as feedstock for dual fluidized bed gasifiers-Operability, efficiency, and economics

Contact Info

Product

Resources

About

Effect of reactant types (steam, CO ₂ and steam + CO ₂ ) on the gasification performance of coal using entrained flow gasifier