Changyi Petrochemical’s 1.4-million-ton-per-year DCC unit fume treatment was recently named a municipal environmental protection project in Weifang city. The project conducted denitration, desulfurization and dusting of flue gas from waste heat boilers, denitration units, desulfurization dusting and wastewater treatment units. It will bring sulfur dioxide, nitrogen oxides and dust contents in flue gas in line with the new national standards on waste discharge.