MAV和复配柴油降凝剂的制备
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摘要
以马来酸酐、醋酸乙烯酯、丙烯酸高级酯为原料单体合成一种三元共聚物MAV降凝剂。采用单因素法研究反应温度、投料比和引发剂BPO用量对0#柴油降凝效果的影响。结果表明,反应温度80℃,投料比马来酸酐∶丙烯酸高级酯∶醋酸乙烯酯为1∶1∶2,引发剂BPO用量1.5 g时,0#柴油冷滤点均降低6℃。研究了MAV与不同的分散剂复配制得降凝剂的效果,结果表明采用分散剂6501(1∶1.5)复配时,具有较好的降滤效果,降低冷滤点8℃。
A kind of tripolymer MAV was synthesized from maleic anhydride,vinyl acetate and acrylic alkylwas. The influence of reaction temperature,monomer ratio and initiator dosage on depressant effect of synthesized depressant was investigated with single- factor experiment. The respective best condition was as follows: temperature was 80 ℃,n( maleic anhydride) ∶n( Vinyl acetate) ∶n( Acrylic alkylwas) = 1∶1∶2,intiator dosage was 1. 5 g. All depressants can reduce CFPP of 0 # diesel 6 ℃. MAV was mixed with different dispersant. The effect of the mixtures on CFPP was studied. The results showed that the mixture of MAV and 6501( 1 ∶1. 5) had better effect. It can reduce CFPP of 0 #diesel 8 ℃.
A kind of tripolymer MAV was synthesized from maleic anhydride,vinyl acetate and acrylic alkylwas. The influence of reaction temperature,monomer ratio and initiator dosage on depressant effect of synthesized depressant was investigated with single- factor experiment. The respective best condition was as follows: temperature was 80 ℃,n( maleic anhydride) ∶n( Vinyl acetate) ∶n( Acrylic alkylwas) = 1∶1∶2,intiator dosage was 1. 5 g. All depressants can reduce CFPP of 0 # diesel 6 ℃. MAV was mixed with different dispersant. The effect of the mixtures on CFPP was studied. The results showed that the mixture of MAV and 6501( 1 ∶1. 5) had better effect. It can reduce CFPP of 0 #diesel 8 ℃.
引文
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[2]刘树清.聚乙烯蜡用作柴油流动性改进剂的研究[J].石油炼制与化工,1991,25(1):58-61.
[3]张大钧,朱同荣,许白敏,等.柴油流动改进剂的制备方法[P].中国:1073187,1993-06-16.
[4]廖克俭,张金辉,闫峰,等.ESMVA降凝剂的研制[J].石油化工高等学校学报,1996,9(3):8-11.
[5]薛兆民,张爱阳.丙烯酸酯和醋酸乙烯酯二元共聚物的合成、表征与降凝助滤效果[J].临沂师范学院学报,2002,24(6):25-27.
[6]祝春兰,张建光,林玉娟.SMA与高级混合醇酯化树脂的研制[J].石油与天然气,1997,26(1):57-59.
[7]丁庆伟,陈高华,张钒.EVAS柴油降凝剂的合成及降凝作用[J].辽宁化工,2004,33(9):515-517.
[8]廖克俭,张金辉,闫光绪.Es MOVS柴油降凝剂的研制[J].精细化工,1996,13(5):19-21.
[9]张金辉,廖克俭,魏毅.MOAS柴油降凝剂的研究[J].抚顺石油学院学报,1996,16(2):18-21.