Mathematical modelling of a staged pulverized coal gasification using O2/CO2 mixtures

Autor:	I G Donskoy
Rok vydání:	2021
Předmět:	History Pulverized coal-fired boiler Waste management Environmental science Computer Science Applications Education
Zdroj:	Journal of Physics: Conference Series. 2057:012064
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/2057/1/012064
Popis:	Conversion of pulverized coal in a two-stage gasifier is studied. When considering carbon capture power plants, mixtures of oxygen with carbon dioxide may be used as a gasification agent. Carbon dioxide is a gasification agent, so characteristics of the gasification process change significantly compared to gasification in oxygen-nitrogen mixtures. The conversion efficiency is determined by the thermophysical factor (change in the heat capacity of the gas mixture and transfer coefficients) and the concentration factor (increase in the concentration of the gaseous reagent). The ratio of primary and secondary fuel consumption determines the leading stage of the process. The influence of process efficiency on oxygen concentration is estimated in the range of 21–30 vol. %.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5fec7a1bbdd0dafd1d94ff2a8f4588cc https://doi.org/10.1088/1742-6596/2057/1/012064 Zobrazit plný text záznamu