China: KHD has reported NOx emissions consistently below 50mg/Nm3 at Tianrui’s 2.0Mt/yr Weihui integrated cement plant in Henan province, where its Pyroredox gasifying reactor has been installed between the kiln inlet chamber and preheater calciner. The NOx reduction after several months of operation was 66%, while reagent usage fell by 78% compared to with the plant’s selective non-catalytic reducer without a Pyroredox fitted. No extra power or fuel was used and production was unaffected. The Pyroredox requires two to four weeks’ downtime for its installation and is now operational at multiple cement plants across China.
KHD shares test success with NOx emission reducer
Written by Global Cement staff
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