id	keyword
esrj-21090	clinker
esrj-21090	coal
esrj-21090	rietveld
esrj-21090	analysis
esrj-21090	method
esrj-21090	combustion
esrj-21090	phases
esrj-21090	spontaneous
esrj-21090	figure
esrj-21090	powder
esrj-21090	quintero
esrj-21090	cerrejón
esrj-21090	rocks
esrj-21090	material
esrj-21090	ite