
595Oxygen Combustion in Cement Production
25.4 Process Modifications
The removal of air from the cement manufacturing pro-
cess will produce profound changes in the design of the
kiln. It is expected that the main components, the pre-
heater, kiln, and clinker cooler, will function in a similar
manner while using different uids. As such, conven-
tional rotary kilns may be converted, through retrot-
ting, into oxygen kilns. In this section, the basic design is
introduced and compared to a conventional kiln. Asim-
plied schematic of the oxygen combustion process is
presented in Figure 25.9.
25.4.1 Baseline System
The basic blocks of the cement kil ...