Two series of pour point depressants(PPD) for crude oils were synthesis. One was acrylic acid esters (C\-\{18\} and C\-\{18-30\})-maleic anhydride copolymer aminolysed by successively reacting with C\-\{18\}-C\-\{30\}...Two series of pour point depressants(PPD) for crude oils were synthesis. One was acrylic acid esters (C\-\{18\} and C\-\{18-30\})-maleic anhydride copolymer aminolysed by successively reacting with C\-\{18\}-C\-\{30\} amine. The other was a maileic anhydride-alpha-olefins copolymer aminolysed by successively reacting with C\-\{18\}-C\-\{30\} amine. Adding 100ppm of PPD to Daqing crude oil combined with heat treating resulted a pour point depression of 19 to 22 ℃. When samples 100×10\+\{-6\} were added to Liaohe, Renqiu, Xinjiang, Daqing crude oil, results show that they have very good pour point depressing effects.展开更多
文摘Two series of pour point depressants(PPD) for crude oils were synthesis. One was acrylic acid esters (C\-\{18\} and C\-\{18-30\})-maleic anhydride copolymer aminolysed by successively reacting with C\-\{18\}-C\-\{30\} amine. The other was a maileic anhydride-alpha-olefins copolymer aminolysed by successively reacting with C\-\{18\}-C\-\{30\} amine. Adding 100ppm of PPD to Daqing crude oil combined with heat treating resulted a pour point depression of 19 to 22 ℃. When samples 100×10\+\{-6\} were added to Liaohe, Renqiu, Xinjiang, Daqing crude oil, results show that they have very good pour point depressing effects.
