Denitrification of Flue Gas by Modified Active Semi-coke
Nitrogen oxides, released from coal-fired power plants, could result in serious environmental problems. Strict regulations have been enacted in many countries t℃ontrol such pollution. To meet the restrictive emissions requirements, many approaches were taken and now selective catalytic reduction (SCR) is the most common solution. Unfortunately, those flue gases cleaning equipment is not usually installed in china, even in large-scale thermal power plants, due to financial and technical restraints.Therefore, low-cost, high efficiency techniques are in urgent demand.The abandoned semi-coke, derived from lignite and bituminous coal produced in Fugu of Shanxi province, was prepared to absorb NOx and catalyze the oxidization of NO into NO2 with the small quantity of O2 in the flue gas.Some modification methods were taken to activate the raw semi-coke. Nitric acid activation could increased the specific surface area and the pore volume of the Fugu semi-coke greatly, and calcination at different temperature could changed the quantity and intensity of the alkali and acid on the surface,all of the properties have remarkable influence on the denitrification ability of the semi-coke. After the modification, the semi-coke possesses the merits of long persisting time and high efficiency. The removal rate of No could reach over 40%.
denitrification flue gas semi-coke oxidation
Guo Rui li Li Chunhu Yu Yingmin Song Qianqian
College of Chemistry and Chemical Engineering, Ocean University of China, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, P.R.China ,Qingdao 266100
国际会议
The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)
大连
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）