Oxygen enrichment at California Portland Cement Company's Mojave Plant

Abstract

This is a review of the oxygen enrichment experience from the California Portland Cement Company, Mojave Plant. For approximately three years of operation, oxygen enrichment has been supplied by imported liquid oxygen, Recently, an onsite generation plant was commissioned and put into service. This paper will analyze injection strategy, refractory adjustments, production increases, and relative cost factors. Discussion will include the onsite generation which utilizes vacuum swing absorption technology. Finally, ongoing efforts to optimize combustion with oxygen injection in the calciner will be reviewed.