It’s introduced that these 22 projects involve revamp of flue gas DeSOx & DeNOx, VOC vent treatment, oil vapour recovery, odour treatment, and revamp of waste water treatment plant, etc. Furthermore, each investment for 5 projects of these, such as the 3000KTA FCC flue gas DeSOx & DeNOx, the refinery power station revamp for DeSOx & DeNOx and waste water treatment plant revamp, has exceeded 100 million Yuan. After the completion of these projects, the SO₂ emission can be reduced by 7200 tons, which equals to planting 4800 mu trees every year; the NOx emission can be reduced by 5100 tons, which equals to the total exhaust emissions of 240,000 vehicles; dust emission reduced by 700 tons and VOC emissions reduced by 2000 tons.