Effect of nanoV2O5, nanoFe2O3 and nanoV2O5/Fe2O3 on selective catalytic reduction of NO over a modified AC catalyst. (2016)

• Record Type: Journal Article
• Authors: Yang, Juanjuan; Qiang, Min; Li, Wei; Fu, Weiyi; Zhang, Long; Lei, Jingjing
• Is Part Of: International journal of oil, gas and coal technology. Volume 11:Number 4(2016)
• Page Start: 387
• Page End: 396
• Publication Date: 2016
• Subjects: activated coke -- NO removal -- nitrogen oxide -- nitric oxide -- coal catalyst -- vanadium oxide -- V2O5 -- iron oxide -- ferric oxide -- Fe2O3 -- micropores -- selective catalytic reduction -- SCR catalysts -- pore structure -- nanomaterials -- nanotechnology -- denitration rates; Petroleum as fuel -- Periodicals; Gas as fuel -- Periodicals; Coal -- Periodicals; Biomass energy -- Periodicals; Hydrogen as fuel -- Periodicals; 662.6
• Languages: English
• ISSNs: 1753-3309

Abstract

The study on columnar activated coke (AC) modified by H2 O2 and HNO3 (HAC) has shown that, compared to original sample AC, the BET surface area and micro-pore area of HAC increased 162.8 m 2 /g and 143.8 m 2 /g respectively. Three types of low temperature selective catalytic reduction (SCR) catalysts were developed by loading on HAC with nano-V2 O5, nano-Fe2 O3 and nano-V2 O5 /Fe2 O3, respectively. All those catalysts samples were characterised by BET area and pore structure analysis, XRD, TEM and SEM. Under the same conditions: 500 ppm NO, 500 ppm NH3, 5% O2, N2 balance, 6, 000 L/(Kg • h), 200°C, an investigation has been made over the NO removal performances of some samples and the results showed that the denitration rates of AC, HAC, V2 O5 /AC, Fe2 O3 /AC and V-Fe/AC are 14.73%, 51.67%, 59.25%, 64.93% and 67.85%, respectively. The best denitration performance was achieved by V-Fe/AC catalyst, which represents an increase of 53.12% compared to original AC. [Received: September 22, 2014; Accepted: May 22, 2015]