Comprehensive Appraisal Of Technology Plan Of Revamp Project In Daqing ABS Plant

ABS is a kind of tertiary resin copolymerized with acrylonitrile, butadiene and styrene. It is compromised with 50% styrene and a proportion of butadiene and acrylonitrile. So it has the property of luster, electricity and flexibility of the polystyrene, the property of toughness, low temperature resistance of the polybutadiene, the property of heat resistance and chemistry resistance of the polyacrylonitrile. Now ABS is the most common used engineering plastics among the world which is used in the areas of car making, communication machines, home electrical machines and life consumptions.The scale of the 50 kt/y ABS plant in CNPC Daqing Petrochemical Complex built in August 1997 is samall, and the technology is very old, polymerization time of the latex of the butadiene is long, ABS graft polymerization time is long, and the blending ratio of SAN in ABS product is as low as 60 percent, while with the advanced technology the SAN ratio can reach 75 percent, higher the SAN blending ratio is, lower the cost is. So many factors result in the ABS product in Daqing high cost, high energy consumption. In addition, the special feed for ABS production is not enough, production procedure is long, polymerization time is long, product quality is unstable, which lead ABS product high cost, low quality, lack in market competition, and the enterprise benefit is bad. Due to the development of ABS technology in our country is late, Daqing ABS plant updated the technology and revamps the plant to make the plant more rational from energy consumption and material consumption. But the color of ABS particle is not as good as that abroad, the yellowness index is a little higher, that affects the quality of the product, and the price is a little lower.As the development of production technology of ABS plant and the increase of the ability of self process technology research and development, at the time of shortage of ABS products of high quality, CNPC Daqing Petrochemical Complex revamped the existing 50 kt/y ABS plant...