共查询到20条相似文献,搜索用时 78 毫秒
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《应用化工》2022,(8)
利用苯甲酰氯与咪唑啉中间体反应,合成了一种新型原油集输用苯甲酰胺-乙基-油酸咪唑啉缓蚀剂YSHSJ-2。利用表面张力仪研究了合成的缓蚀剂YSHSJ-2表面性能,利用失重法研究了缓蚀剂YSHSJ-2缓蚀效果的影响因素。结果表明,合成的缓蚀剂的cmc=48.87 g/L,γ_(cmc)=30.25 m N/m,θ=51.25°,Γ_m=504.54×10(-8)mol/m(-8)mol/m2,在30℃,4%HCl下,缓蚀剂浓度为100 mg/L时,缓蚀率高达87.69%。在相同的缓蚀剂浓度下,温度越高、盐酸浓度越大,缓蚀率逐渐变小,缓蚀效果变差。合成的缓蚀剂YSHSJ-2可以很好的吸附在集输设备及管道的表面,可有效地缓解集输设备及管道的腐蚀速率。 相似文献
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《化学工业与工程技术》2021,(1):51-54
针对西部某油田含CO_2原油集输管道腐蚀现象严重的问题,以不饱和脂肪酸、三乙烯四胺和氯苯甲烷为原料合成了一种咪唑啉型缓蚀剂,并将咪唑啉型缓蚀剂与非离子表面活性剂进行复配研制出一种新型抗CO_2缓蚀剂KW-101。考察了含水率、温度、流速以及CO_2分压对缓蚀率的影响,室内试验结果表明:随着含水率、温度、流速和CO_2分压的增大,缓蚀剂KW-101的缓蚀率逐渐降低,当试验温度为50℃、流体含水率为80%、流速为3 m/s、CO_2分压为1.5 MPa时,缓蚀率仍可以达到80%以上。现场应用结果表明:在含CO_2原油集输管道中注入200 mg/L的缓蚀剂KW-101后,挂片的腐蚀速率可以降低至0.006 mm/a,达到了良好的缓蚀效果。 相似文献
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针对西部某油田含CO2原油集输管道腐蚀现象严重的问题,以不饱和脂肪酸、三乙烯四胺和氯苯甲烷为原料合成了一种咪唑啉型缓蚀剂,并将咪唑啉型缓蚀剂与非离子表面活性剂进行复配研制出一种新型抗CO2缓蚀剂KW-101.考察了含水率、温度、流速以及CO2分压对缓蚀率的影响,室内试验结果表明:随着含水率、温度、流速和CO2分压的增大... 相似文献
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以月桂酸、三乙烯四胺、甲醛和苯乙酮为原料,合成了月桂酸咪唑啉曼尼希碱缓蚀剂,并对产品进行了红外表征。采用静态失重法对合成的咪唑啉曼尼希碱缓蚀剂进行缓蚀性能测试。实验结果表明,缓蚀率随着缓蚀剂使用浓度的增加而增加,缓蚀剂浓度超过1250mg/L后,缓蚀率增加非常缓慢。缓蚀剂在10%盐酸溶液中,用量1250mg/L,腐蚀温度为40℃、60℃和80℃时,缓蚀率分别达到94.18%、88.16%和63.54%。极化曲线测试结果表明,阴极电位变的更负,阳极电位变化不大。因此,合成的缓蚀剂是以抑制阴极为主的混合型缓蚀剂。交流阻抗测试结果表明,缓蚀剂的加入可以提高金属表面电荷转移电阻,对碳钢表面进行了有效防护。 相似文献
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刘陈宇 《化学工业与工程技术》2012,33(5):58-60
介绍了企业在实施原油优化调合系统中为了稳定原油性质、实时优化调合配方、实现在线原油调合而开发的原油快速评价模块。通过该模块的使用,大大降低了原油评价的时间,能稳定、实时地检测各调合支路及总路的原油评价性质,为优化调合模块提供了准确的性质数据,实现了调合配方的实时优化,达到原油的在线调合目标,提高了装置运行的平稳率,为企业优化生产、降本增效提供了有力支撑。 相似文献
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Kazuo Sugaya Osamu Nakayama Naoyuki Hinata Koichi Kamekura Akira Ito Kazuaki Yamagiwa Akira Ohkawa 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2001,76(6):603-611
Removal of quinoline, which is typical of nitrogen‐containing compounds in crude oil, was achieved by a biodegradation reaction by Comamonas sp TKV3‐2‐1. The aerobic strain, Comamonas sp TKV3‐2‐1, which can grow utilizing quinoline as the sources of both carbon and nitrogen, degraded quinoline to 2‐hydroxyquinoline, finally to water‐soluble substances. The degradation reaction of 2‐hydroxyquinoline was revealed to be regarded as a rate‐limiting step controlling the overall reaction of biodenitrogenation process of quinoline in crude oil. The degradation rate of 2‐hydroxyquinoline in a stirred fermenter had a maximum of 211 mg 2‐hydroxyquinoline g‐cell?1 h?1 when the portion of crude oil in the reaction mixture, the cell concentration and the rotational speed of agitation impeller were 83.3%(v/v), 28.5 gdm?3 and 11.7 s?1, respectively. After the reaction was completed, the crude oil and the cell suspension could be separated efficiently by centrifuging. The possibility of constructing a bioprocess for removing quinoline in crude oil under storage is also discussed. © 2001 Society of Chemical Industry 相似文献
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This paper discusses the results of development work on the control of crude oil dilution in palm oil mills. The importance
of crude oil dilution in palm oil mills is clearly shown by a simple cost-benefit analysis. Preliminary results from a three-phase
decanter trial have shown that, besides a clarification system using horizontal or vertical clarifiers, dilution control is
also important to a decanter system.
A practical approach to the automatic control of crude oil dilution using a flow ratio control system is discussed in depth
in this paper. Results obtained from the evaluation of Doppler and magnetic flowmeters have shown that the major obstacle
in automatic control of crude oil dilution, i.e., the selection of a suitable flowmeter to measure crude oil flow, has been
overcome. 相似文献
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《Journal of the American Oil Chemists' Society》1926,3(11):375-375
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