NDLI: Experiment and thermodynamic analysis on Q-phase cement clinker cogeneration from coal in pulverized coal combustion boiler

Content Provider	IEEE Xplore Digital Library
Author	Jiao You-zhou Wang Xuetao Pan Xiaohui
Copyright Year	2011
Description	Author affiliation: College of Vehicle and Motive Power Engineering, Henan University of Science and Technology, Luoyang, China 471003 (Wang Xuetao) \|\| College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, China 453002 (Jiao You-zhou; Pan Xiaohui)
Abstract	Taking Changguang coal as experimental coal type, carrying out the experiment of Q-phase cement clinker co-generated from high-sulfur coal on two-section multiphase reaction test stand and conducting XRD analysis on the mineral composition in co-generation clicker sample, it was found that the major mineral species in compositions of co-generation clinker are 2CaO·SiO2, Q phase and calcium sulphoaluminate (3CaO·3Al2O3·CaSO4). According to the Gibbs free enthalpy G of state function, conduct thermodynamic calculation on the mineral formation reaction probably occurring in the chemical compositions of Q-phase cement clinker co-generated from Changguang coal, especially, calculate and compare the formation reactions of high-temperature sulfur capture product 3CaO·3Al2O3·CaSO4 and Q-phase that was the characteristic mineral of co-generation, and compare the priority of mineral formation reactions of clicker. The findings show that, according to the chemical composition of clinker, the direct synthesis reaction of 2CaO·Al2O3·SiO2 will firstly occur, followed by the direct synthesis reaction of 2CaO·SiO2, the next is the indirect synthesis reaction of Q-phase, and the last is the indirect synthetic reaction of 3CaO·3Al2O3·CaSO4; the final main mineral compositions of co-generation clinker should be 2CaO·SiO2, Q phase and 3CaO·3Al2O3·CaSO4; the conclusion of thermodynamic analysis on co-generation clicker mineral formation reaction basically conforms to the mineral composition in experiment of Changguang coal co-generating Q-phase cement clinker.
Starting Page	1742
Ending Page	1746
File Size	683650
Page Count	5
File Format	PDF
ISBN	9781612847498
e-ISBN	9781612847528
DOI	10.1109/ICMREE.2011.5930671
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Thermodynamics Pulverized coal combustion boiler Sulfoaluminate Cogeneration High-sulphur Changguang coal Q-phase cement clinker Compounds Chemicals Thermodynamic
Content Type	Text
Resource Type	Article

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