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                            Technical superiority
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                            Intellectual property list of SQPEC-Technical development achievements
                            S/N Technical development achievements and technical superiority Certification No.
                            1 Package technique of BR  
                            2 ESBR package technique  
                            3 NBR package technique  
                            4 Package technique for 80ktpa MEK plant  
                            5 Production technique of MTBE  
                            6 Technique of propylene production with PDH  
                            7 Butane/isobutene dehydrogenation technique  
                            8 Package technique for high-efficiency sulphur unit  
                            9 Production technique for butadiene with butene oxo-hydrogenation  
                            10 Comprehensive utilization technique of mixed C4  
                            11 Petrochemical waster water advance treatment and cyclic utilization  
                            12 Package technique for styrene/ethyl-benzene  
                            13 Package technique for AN  
                            14 Butene-1 production technique with C4 from refinery as raw material  
                            15 Technology of dichloroethane production with chlorination of thin ethylene