EU-demonstration project BioCoComb for biomass gasification and co-combustion of the product-gas in a coal-fired power plant in Austria

Mory, A.; Zotter, T.

doi:10.1016/s0961-9534(98)00026-9

Cited by 22 publications

(4 citation statements)

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“…The performance of ECN's pilot CFB gasifier in terms of thermal efficiency, carbon conversion, and tar concentration in the product gas appears to be typical for 25 20, 4 10, 24 27, 16 and 100 1 MW th ). This comparison showed that the values of the main performance indicators (thermal efficiency, carbon conversion, tars in the product gas) were similar and, more importantly, did not dependent on the capacity.…”

Section: Experimental Set-ups and Measurement Techniquesmentioning

confidence: 99%

Experimental Fact-Finding in CFB Biomass Gasification for ECN's 500 kW_th Pilot Plant

Kersten

Prins

Drift

et al. 2003

Ind. Eng. Chem. Res.

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CFB biomass gasification has been studied by experimentation with ECN's pilot facility and a cold-flow model of this plant. Data obtained by normal operation of this plant and the results of some special experiments have provided new insight into the behavior of circulating fluidized bed reactors and CFB biomass gasifiers in particular. It has been found, for instance, that char gasification reactions and reform reactions of lower hydrocarbons do not proceed in an atmospheric CFB. Moreover, it appears that the axial and radial mixing of gas and solids is not ideal and that the coupling between the prevailing solids circulation rate, the gas velocity (profile), and the solids hold-up does not provide optimal reactor conditions. As a consequence, problems are observed in practice, such as insufficient thermal efficiency and an excessive concentration of contaminants (e.g., tars) in the product gas of CFB gasifiers. A two-dimensional engineering reactor model has been developed, partially on the basis of the results obtained from measurements with the pilot plant and the cold-flow model. The predictions of this model are in good agreement with the observed overall performance of the plant, as well as the measured axial and radial gas concentration profiles inside the riser. A novel multistage fluidized bed reactor concept has been tested (at laboratory and pilot scale) to investigate whether the problems encountered in conventional CFB gasifiers could be resolved. In this novel reactor, a separate char combustion zone is created that results in a significant increase of the thermal efficiency.

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Section: Experimental Set-ups and Measurement Techniquesmentioning

confidence: 99%

Experimental Fact-Finding in CFB Biomass Gasification for ECN's 500 kW_th Pilot Plant

Kersten

Prins

Drift

et al. 2003

Ind. Eng. Chem. Res.

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“…Gasification technology is now gaining popularity with implementation of integrated gasification combined cycles (IGCC) becoming more imminent. While large-scale applications are found in Finland and Austria, parallel application with biomass is still under development stage [2,5,6].…”

Section: Introductionmentioning

confidence: 99%

Bubbling fluidized bed biomass gasification—Performance, process findings and energy analysis

Lim

Alimuddin

2008

Renewable Energy

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Bubbling fluidized bed gasifiers (BFG) has potential for rural electrification projects especially in third world countries where biomass supplies are abundant from agricultural, wood industries and where electricity supply from the grid is not available. In this paper the performance of a BFG was observed in terms of its thermal output. Gas chromatography (GC) was used to check the gas composition. The size of the wood chips was irregular but mostly falls in the range of 30 mm in both length and width, with the thickness at an average of 3.0 mm. It showed that the gas produced had an energy content of 4.74 MJ/m 3 at a bed temperature of 733 1C, with the equivalence ratio at 0.23. The resulting thermal efficiency was 61.32% with a thermal output of 355.55 kW th . For village electrification projects, this thermal output is able to supply 100 kW e through a diesel generator, enough for electricity consumption in 100 households. An energy balance of the system was done to determine its work potential. It was found that the heat loss was 29.64%. A Shankey diagram of the energy distribution of the BFG system shows that the rest of the thermal output is not utilized and exits the system in the form of char and tarry liquids. Condensates were collected for high-performance liquid chromatograph (HPLC) analysis. It was found that phenol was high when the bed temperature was 450 1C, which makes the outlet condensate very soluble in water and can cause water contamination. r

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“…The indirect co-firing requires a separate biomass boiler for further steam utilization process [1]. The gasification process, on the other hand has high fuel flexibility due to the combination of the gasification of solid biomass or other fuels and combustion of the fuel gas product in the boiler [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Temperature Profile Assessment of Sub-Bituminous Coal by Using a Single Burner Combustion Test Facility

Samsuri

Hasini

Noor

et al. 2020

ARFMTS

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This paper presents a thermogravimetric analysis and combustion test for different coals used in a coal-fired power plant in Malaysia. The main objective is to investigate the suitability of adopting a newly-introduced sub-bituminuous coal in an existing boiler furnace commonly firing standard design coals. In order to ensure that the new coal will not give an adverse effect to the boiler, detail analytical and thermal performance of the new coal is investigated, together with design and other limiting coals. The combustion test was performed in a scaled down, 150kW, single swirl burner combustion test facility available in TNB Research Sdn. Bhd. In the study, combustion gas temperature at different sectors downstream of burner region is measured to determine the peak temperature for all tested coals. Based on the investigation, it was noted that coal with the highest fixed carbon content gives the highest temperature measure at all sectors. Similarly, coal with the lowest fixed carbon gives the lowest temperature. The temperature profile for the newly tested coal was found to be comparable to the design and limiting value coals. Even though it was observed that the temperature given by the new coal is the highest slightly downstream of the burner, the temperature was observed to be decreases as combustion gas flow downstream of the combustor rig. Based on the observation it can be said that the new coal is suitable to be used by the existing boiler furnace.

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EU-demonstration project BioCoComb for biomass gasification and co-combustion of the product-gas in a coal-fired power plant in Austria

Cited by 22 publications

References 0 publications

Experimental Fact-Finding in CFB Biomass Gasification for ECN's 500 kW_th Pilot Plant

Experimental Fact-Finding in CFB Biomass Gasification for ECN's 500 kW_th Pilot Plant

Bubbling fluidized bed biomass gasification—Performance, process findings and energy analysis

Temperature Profile Assessment of Sub-Bituminous Coal by Using a Single Burner Combustion Test Facility

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EU-demonstration project BioCoComb for biomass gasification and co-combustion of the product-gas in a coal-fired power plant in Austria

Cited by 22 publications

References 0 publications

Experimental Fact-Finding in CFB Biomass Gasification for ECN's 500 kWth Pilot Plant

Experimental Fact-Finding in CFB Biomass Gasification for ECN's 500 kWth Pilot Plant

Bubbling fluidized bed biomass gasification—Performance, process findings and energy analysis

Temperature Profile Assessment of Sub-Bituminous Coal by Using a Single Burner Combustion Test Facility

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Product

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Experimental Fact-Finding in CFB Biomass Gasification for ECN's 500 kW_th Pilot Plant

Experimental Fact-Finding in CFB Biomass Gasification for ECN's 500 kW_th Pilot Plant