News

Normally Reduced Pressure Distillation Unit: In 2005, in Yanshan 8 million tons/year Normally Reduced Pressure Distillation Unit, super duplex stainless steel was used for the tube bundles of initial top water cooler E-1510/1~4 and normal top water cooler E-1511/1~4, which solved the problem of corrosion of chlorine-containing medium.
Hydrogenation plant: In 2004, the heat exchanger E-102 between hot high fraction gas and low fraction oil of 1.4 million tons hydrocracking plant in Hainan and the steam generator E-403 of hot high fraction gas of 1.4 million tons/year hydrocracking plant in Qilu Petrochemical were made of duplex stainless steel, which have been well behaved in the complex corrosive environments such as high temperature, high pressure, pro-hydrogen and sulfur in the hydrogenation plant.
Vinyl chloride production plant: Qilu Petrochemical Company vinyl chloride plant oxygen chlorination reactor cooling snake tube using imported 2205 duplex stainless steel, Shanghai Petrochemical Company ethylene plant catalyst regeneration cooler using domestic similar DP3 steel 00C25Ni7Mo3WCuN duplex stainless steel as seawater cooler tube, have achieved good results.
Methanol synthesis device: 200,000 t of large and many sets of 100,000 t of the following small and medium-sized methanol synthesis reactor catalyst tube using 2205 duplex stainless steel pipe, Henan Coal Chemical Plant of pulverized coal gasification plant of several coolers are also used in imported 2205 steel pipe manufacturing.