Slag properties of blending coal in an industrial OMB coal water slurry entrained-flow gasifier

Guo, Qinghua; Zhou, Zhijie; Wang, Fuchen; Yu, Guangsuo

doi:10.1016/j.enconman.2014.06.054

Cited by 41 publications

(20 citation statements)

References 29 publications

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“…Several researchers have studied the ash fusion temperatures or slag characteristics of different rank coals [12,13] and various biomasses [14,15]. However, only a few investigations [16,17] are closely related to the coal and biomass blending ash.…”

Section: Introductionmentioning

confidence: 98%

Influence of biomass addition on Jincheng coal ash fusion temperatures

Chen

Tang

Tian

et al. 2015

Fuel

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Section: Introductionmentioning

confidence: 98%

Influence of biomass addition on Jincheng coal ash fusion temperatures

Chen

Tang

Tian

et al. 2015

Fuel

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“…Thus, researchers should exert great effort to find ways of utilising lignite resources in an environmentally friendly and efficient manner [4]. Coal water slurry (CWS) fuel is widely used in various boilers and gasifiers, because similar to heavy oil, it can be conveniently and cleanly stored, transported, atomised and burned [5][6][7][8]. The process of producing CWS fuel from lignite for combustion and gasification is a promising technology in clean lignite utilisation.…”

Section: Introductionmentioning

confidence: 99%

Upgrading Chinese Shengli lignite by microwave irradiation for slurribility improvement

Zhou

Cheng

Wang

et al. 2015

Fuel

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“…The chemical composition of coal ash is important for slagging gasifiers because it affects ash fusibility, slag viscosity, and refractory life . Mineral evolutions in the gasifiers are often studied via thermodynamic calculation using modeling software such as FactSage, − but only the ash compositions of feed coal were selected as the input parameters for the calculation in those studies. As for the chemical composition of coal gasification slag, scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS) was often conducted to determine the chemistry of ash particles. , Li et al, Zhang et al, and Guo et al analyzed the chemical composition of coarse slag and fine slag in their research, but the data of the feed coals were absent.…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition Changes during the Commercial Entrained-Flow General Electric and Gaskombinat Schwarze Pumpe Coal Gasification Processes

et al. 2020

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The chemistry of the feed coals and coal gasification residues derived from the commercial entrained-flow General Electric (GE) and Gaskombinat Schwarze Pumpe (GSP) coal gasification plants in China was investigated by proximate and ultimate and X-ray fluorescence (XRF) spectrometer analyses. The chemical compositions of the feed coals and gasification residues derived from the commercial GE and GSP coal gasification plants provided an understanding of the behaviors of the chemical components during entrained-flow coal gasification. The fate of chemical compositions during the commercial entrained-flow coal gasification was evaluated through systematic sampling and chemical analyses. Although the feed coals used in the GE and GSP coal gasification plants were generally similar in properties, the coal gasification residue ashes derived from the GSP gasification were more heterogeneous than those from the GE gasification. However, more proportions of carbon in the feed coal were converted during the GSP coal gasification according to the unreacted carbon contents in the gasification residues indicated by the loss on ignition value. Si and Al were stable in both the GE and GSP gasification processes, while Mg, Na, and P tended to be more volatile. However, the ashes of the GE coal gasification residues and GSP coal gasification residues were respectively ferricalsialic and calsialic, as was mainly determined by the properties of the feed coals instead of the gasification technology. A comparison to previous research showed that the GE and GSP coal gasification residues have a potential for carbon recovery and being used as the raw materials of inorganic materials such as geopolymers.

show abstract

Slag properties of blending coal in an industrial OMB coal water slurry entrained-flow gasifier

Cited by 41 publications

References 29 publications

Influence of biomass addition on Jincheng coal ash fusion temperatures

Influence of biomass addition on Jincheng coal ash fusion temperatures

Upgrading Chinese Shengli lignite by microwave irradiation for slurribility improvement

Chemical Composition Changes during the Commercial Entrained-Flow General Electric and Gaskombinat Schwarze Pumpe Coal Gasification Processes

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