Temperature of catalytic combustion is 180-500, Purification is 90-99% with related initiative temperature. Volatile organic compounds(VOCS) refers to the benzene, alcohols, aldehydes, phenol, ether, ketone, and mephitic gas, etc. The main sources of VOCs is painting, printing, petroleum refining, pharmacy, plastic materials and gum polymer process. Treatment of VOCs is very important and ...