A　series　of　supported　vanadium-titanium　denitrification　catalysts　were　prepared　by　impregnation　method　with　foam　metal　as　carrier　for　NH3-SCR　of　NOx　at　low　temperature.　Effects　of　pH,　slurry　concentration,　catalyst　loading　rate,　face　velocity　and　O2　concentration　on　catalytic　performance　were　studied.　The　results　showed　that　when　immersion　concentration　was　30g/100mL　and　filtration　speed　was　0.7m/min,　the　pressure　drop　was　300Pa　and　NOx　removal　efficiency　was　98%　at　200°C.　The　foam　catalytic　filter　was　put　into　the　bag　dust　collector,　which　had　the　function　of　simultaneous　removing　particulate　and　NOx.　When　filtration　velocity　was　0.7m/min,　NOx　removal　efficiency　reached　95.5%　at　200°C　and　it　had　good　water　resistance.　The　results　provided　the　basis　for　further　pilot　experiment.　©　2020　Published　under　licence　by　IOP　Publishing　Ltd.