Review Article

Recent Development of Catalysts for Removal of Volatile Organic Compounds in Flue Gas by Combustion: A Review

Table 2

Non-noble metal based catalysts in the recent literature.

CatalystActive phase concentration (wt%)VOC concentration (ppm)VOC total conversion (°C)1Gas flow2Publication year

50Toluene 3,500Around 25060 mL/min2004 [60]
CuO/Al2O35Toluene 4,000Around 3503,600 mL h−1 g−12004 [61]
CuCsHY1.3 Cu, 5.5 CsToluene 800Below 45024,200 h−12007 [62]
LaCoO320Benzene 1,700
Toluene 1,700
Around 450
Around 350
60,000 mL h−1 g−12007 [63]
MnCu/FeCr Alloy35 (Mn/Cu ratio 1 : 1) washcoating solutionToluene 265Below 35010,000 h−12008 [64]
Mn-CeO225Toluene 600Below 26050 cm3/min2008 [65]
Cu/Mn-CeO22.54Benzene 20035030,000 mL h−1 g−12008 [66]
Cu-Mn/MCM-41Not reportedToluene 3,500Around 35060 cm3/min2008 [67]
Mn/Al2O311.25Toluene 10000Around 380100 mL/min2009 [68]
Mn3O4Pure phaseToluene 1,000 Below 250100 cm3/min2010 [69]
Ca/Mn3O40.5Benzene 2,000
Toluene 2,000
Around 250
Around 270
100 cm3/min2010 [69]
Na88Al88Si104O384Pure phaseo-Xylene 1,360 Around 32018,000 h−12010 [70]
Cu0.13Ce0.87Pure phaseToluene 1,000 Around 25090,000 h−12011 [21]
Cu-Ce/Al2O315 Cu, 75 CeToluene 1,000 Around 320200 cm3/min2011 [71]
Mn-Ce/Al2O330 Mn, 40 CeToluene 1,000 Around 320200 cm3/min2011 [71]
Cu-Mn/Al2O310 Cu, 60 MnToluene 1,000 Below 300200 cm3/min2011 [71]
CoMn/Activated Carbon20 (Mn/Co ratio 1.5)Toluene 10,000 Ethylbenzene 10,000
Benzene 10,000
>98.7% at 250
>90% at 250
<10% at 350
66,000 mL h−1 g−1 2015 [72]

1The temperatures were extracted from relevant figures given in the literature and exact values are difficult to be presented here.
2Due to the lack of dimension for the reactors used in literature, it is difficult to convert all the gas flow with the same units.