The Use of Biobased Surfactant Obtained by Enzymatic Syntheses for Wax Deposition Inhibition and Drag Reduction in Crude Oil Pipelines
The Use of Biobased Surfactant Obtained by Enzymatic Syntheses for Wax Deposition Inhibition and Drag Reduction in Crude Oil Pipelines
复制标题
酶法合成生物基表面活性剂在原油管道蜡沉积抑制和减阻中的应用
DOI：
10.3390/catal6050061
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发表时间：
2016-04
期刊：
影响因子：
3.9
通讯作者：
Zhang Lei
中科院分区：
文献类型：
--
作者：
Wang Zhihua;Yu Xueying;Li Jiaxu;Wang Jigang;Zhang Lei
原油在提供世界能源供应方面发挥着重要作用，管道长期以来被认为是运输石油及其产品的最安全和最有效的手段。然而，运输过程也面临着沥青质-石蜡结构相互作用、管道压力损失和能源消耗的挑战。为了确定表面活性剂减阻添加剂在原油输送中的作用，采用酶法合成的生物基表面活性剂对不同原油进行了管道防蜡减阻实验。结果表明，添加表面活性剂后形成稳定的水包油乳状液，可显著提高稠油管道的输送能力。蜡的外观温度（WAT）和倾点进行了修改，并通过添加小浓度的表面活性剂添加剂，防止在低温下形成的联锁蜡晶体的空间填充网络。当添加剂浓度为100 mg/L时，轻质原油在管道中的最大降粘率为70%，减阻率为40%。并在大庆油田某轻质原油管道上进行了成功的现场应用。因此，在石油运输中使用通过酶合成获得的生物基表面活性剂是解决当前挑战的潜在方法，这可能导致显著的能源节约和运营成本的大幅降低。
Crude oil plays an important role in providing the energy supply of the world, and pipelines have long been recognized as the safest and most efficient means of transporting oil and its products. However, the transportation process also faces the challenges of asphaltene-paraffin structural interactions, pipeline pressure losses and energy consumption. In order to determine the role of drag-reducing surfactant additives in the transportation of crude oils, experiments of wax deposition inhibition and drag reduction of different oil in pipelines with a biobased surfactant obtained by enzymatic syntheses were carried out. The results indicated that heavy oil transportation in the pipeline is remarkably enhanced by creating stable oil-in-water (O/W) emulsion with the surfactant additive. The wax appearance temperature (WAT) and pour point were modified, and the formation of a space-filling network of interlocking wax crystals was prevented at low temperature by adding a small concentration of the surfactant additive. A maximum viscosity reduction of 70% and a drag reduction of 40% for light crude oil flows in pipelines were obtained with the surfactant additive at a concentration of 100 mg/L. Furthermore, a successful field application of the drag-reducing surfactant in a light crude oil pipeline in Daqing Oilfield was demonstrated. Hence, the use of biobased surfactant obtained by enzymatic syntheses in oil transportation is a potential method to address the current challenges, which could result in a significant energy savings and a considerable reduction of the operating cost.
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影响因子：
1.5
作者：
Azevedo, LFA;Teixeira, AM
通讯作者：
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影响因子：
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