We are offering Hydrocarbon Removing Air Purifier. Detailed product description hydrocarbon removing air purifier 1.useful for gas purification 2.simple operation 3.safe and steady work 4.by dhl or ems hydrocarbon removing air purifier1.useful for gas purification 2.simple operation 3.safe and steady work4.by dhl or ems jo-4 hydrocarbon removing air purifier schematic diagram the inner diameter of stainless steel u-tube is 4mm. The filling inside of the u-tube is high-performance palladium catalyst and the height of the bed is about 7 8cm. Before the u-tube there is a 1m long, 4mm diameter stainless steel preheat tube, the furnace temperature is 350 500 c. Specification1 input hydrocarbon concentrations: