期刊
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
卷 2, 期 2, 页码 1007-1010出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2014.03.022
关键词
Titanium-bearing blast furnace slag; SCR; Denitration; V-W-Ti catalyst
资金
- National High Technology Research and Development Program of China [2010AA065004]
- International Science and Technology Cooperation Program of China [OS2012ZR0410]
- The Special Foundation for Strategic Guide Science and Technology of The Chinese Academy of Sciences [XDA07010000]
Preparing SCR (selective catalytic reduction) catalyst from the titanium-bearing blast furnace slag not only realized the high-value utilization of the slag but also provided a low-cost method for V-W-Ti catalyst production. Titanium dioxide was extracted from titanium-bearing blast furnace slag and used as the carrier of V-W-Ti SCR catalyst. Although with 21% SiO2 and a little Al and Fe impurities, the slag-based SCR catalyst exhibited higher deNO(x) activity and wider active temperature range than commercial TiO2-based catalysts. Under the conditions of NO = 600 ppm, GHSV (gas hourly space velocity) = 24,000 h(-1), NH3/NO = 0.8 and O-2 = 3%, the slag-based SCR catalyst exhibited NO conversion of higher than 77% in the temperature range of 250-450 degrees C. For a test at 300 degrees C, the slag-based catalyst also showed outstanding catalytic stability in the flue gas containing 2000 ppm SO2 and 10% H2O. (C) 2014 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据