一种沥青分散剂的研制及对油浆阻垢性能的评价
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摘要
采用聚异丁烯基丁二酰亚胺、咪唑和水杨醛为原料制备了一种新型沥青分散剂,考察了原料配比、反应温度和反应时间对产品阻垢性能的影响;采用傅里叶红外光谱对产品结构进行表征;采用经典失重法考察产品的缓蚀性能;考察了阻垢剂各组分配比对油浆阻垢性能的影响。结果表明:沥青分散剂的最佳合成条件为:n(聚异丁烯基丁二酰亚胺):n(咪唑):n(水杨醛)=2∶2∶1,反应温度140℃,反应时间5h;红外光谱分析表明合成的样品为目的产物;合成的沥青分散剂具有良好的热稳定性,在200~380℃内未出现热失重情况;具有较好的阻垢性能,当加入量(w)为150μg/g时,对油浆的阻垢率可达79.0%;并具有较好的缓蚀性能,缓蚀率为84.6%。
A new type of asphalt dispersant was prepared by using polyisobutylene succinimide,imidazole,and salicylaldehyde as materials and characterized by FT-IR.The effects of molar ratio of the material,reaction time and temperature on the scale inhibition performance of the product were investigated;the weight loss analysis was used to test the corrosion inhibition performance of product;and the effect of the ratio of scale inhibitor components on the asphaltene inhibition was discussed.The results show that the best synthetic conditions for asphalt dispersant are:mole ratio of 2∶2∶1for polyisobutylene succinimide∶imidazole∶salicylaldehyd,and reaction time of 5hat 140℃.IR spectrum shows that the desired product is synthesized;No thermal weight loss in 200—380℃indicates the good thermal stability of the product.When 150μg/g product was added,the asphaltene inhibition rate is up to 79.0%,and the corrosion-inhibiting rate is up to 84.6%.
A new type of asphalt dispersant was prepared by using polyisobutylene succinimide,imidazole,and salicylaldehyde as materials and characterized by FT-IR.The effects of molar ratio of the material,reaction time and temperature on the scale inhibition performance of the product were investigated;the weight loss analysis was used to test the corrosion inhibition performance of product;and the effect of the ratio of scale inhibitor components on the asphaltene inhibition was discussed.The results show that the best synthetic conditions for asphalt dispersant are:mole ratio of 2∶2∶1for polyisobutylene succinimide∶imidazole∶salicylaldehyd,and reaction time of 5hat 140℃.IR spectrum shows that the desired product is synthesized;No thermal weight loss in 200—380℃indicates the good thermal stability of the product.When 150μg/g product was added,the asphaltene inhibition rate is up to 79.0%,and the corrosion-inhibiting rate is up to 84.6%.
引文
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[9]宋军,杨敬一,苏晓琳,等.新型油溶性沥青质分散剂抑制重质原油沥青质沉积的研究[J].石油炼制与化工,2016,47(4):36-41
[10]丁秋炜.一种沥青分散剂的制备及性能分析[J].石油炼制与化工,2016,46(9):71-74
[11]梅玉芬.胶质沥青质分散剂的研制与应用[J].内蒙古石油化工,2009,35(20):37-38
[2]李晓辉.沥青质相分离行为与抑制基础研究[D].山东:中国石油大学(华东),2008
[3]阮哲,王祺来.沥青质沉积机理研究综述[J].当代化工,2016,45(1):125-128
[4]Ghaffar A M A,Kabel K I,Farag R K,et al.Synthesis of poly(dodecyl phenol formaldehyde)-b-poly(oxypropylene)block copolymer,and evaluation as asphaltene inhibitor and dispersant[J].Research Chemical Intermediates,2015,41(1):443-455
[5]Kabel K I,Abdelghaffar A M,Farag R K,et al.Synthesis and evaluation of PAMAM dendrimer and PDPF-b-POP block copolymer as asphaltene inhibitor/dispersant[J].Research on Chemical Intermediates,2015,40(5):457-474
[6]廉培庆,马翠玉,高敏,等.沥青质沉积特征及控制策略研究进展[J].科学技术与工程,2015,15(16):101-107
[7]孟邱,闫慧,黄玮,等.催化裂化装置的腐蚀与防护[J].精细化工中间体,2011,41(1):8-10
[8]赵继昌.T02ZG-1油浆阻垢剂在重油催化裂化装置上的应用[J].石油石化节能,2011(1):25-27
[9]宋军,杨敬一,苏晓琳,等.新型油溶性沥青质分散剂抑制重质原油沥青质沉积的研究[J].石油炼制与化工,2016,47(4):36-41
[10]丁秋炜.一种沥青分散剂的制备及性能分析[J].石油炼制与化工,2016,46(9):71-74
[11]梅玉芬.胶质沥青质分散剂的研制与应用[J].内蒙古石油化工,2009,35(20):37-38