安全环保型防蜡剂研究及性能评价
发布时间:2018-03-12 19:22
本文选题:环保防蜡剂 切入点:含蜡量 出处:《东北石油大学》2017年硕士论文 论文类型:学位论文
【摘要】:石油在当今社会的发展中占据着至关重要的地位,社会的发展对石油能源的需求与日俱增。我国多数原油属于高凝点原油,原油的这种物性为原油的开采与运输带来了一定的困难。通过添加防蜡剂的方式改变原油的低温流动性,可以降低原油的开采难度,节约运输成本。由于目前使用的防蜡剂存在二次污染的问题,本文通过研究两种模拟油对安全环保型防蜡剂的性能,为原油的开采与防蜡剂的研制提供一定的理论依据。通过研究溶剂对防蜡剂效果的影响得出-35#柴油具有很好的溶解性能,并且环保污染小。采用-35#柴油作为环保型防蜡溶剂,将环保型防蜡剂作用于含蜡量不同的模拟油,通过改变反应时间、反应温度、加剂量来研究对防蜡剂的防蜡效果的影响。实验表明针对含蜡量为15%与25%的模拟油最佳反应条件为:反应时间为40min;反应温度为60℃;加剂量为300ppm。针对含蜡量为35%的模拟油最佳反应条件为:反应时间为40min;反应温度为60℃;加剂量为400ppm。将两种防蜡剂作用于胶质含量不同的模拟油,通过改变加剂量得出羧酸酯类防蜡剂对高胶质含量模拟油具有较好地降凝效果,凝点下降26℃。将防蜡剂WI-1加入到胶质含量不同的模拟油中,改变处理温度与反应温度得出以下结论:反应温度对防蜡剂作用于模拟油的降粘效果具有较大程度的影响,处理温度为65℃、反应温度为60℃时模拟油粘度最小。防蜡剂WI-1针对胶质含量为16.11%的模拟油粘度可降低约40mm2/s。防蜡剂WI-1对不同胶质含蜡量的模拟油在防蜡率的改善方面得出以下结论:加剂量为300ppm时,胶质含量介于3-5%之间防蜡剂WI-1具有最佳的防蜡效果,醋酸乙烯酯类防蜡剂在加剂量为300ppm时对模拟油-2防蜡率最高为65.9%。通过正交实验得出以下结论:从影响程度大小来说,加剂量反应时间防蜡剂反应温度;防蜡剂PI40:EVA32:PMA复配的最佳比例为6:3:1,使用-35#柴油作为防蜡溶剂可以达到既环保又安全的目的;复配后的防蜡剂溶于-35#柴油,配制比例为6:3:1的防蜡剂FI-2降凝效果最佳,在加剂量为400ppm时,凝点降低24℃。在反应时间为40min,反应温度为60℃,加剂量为400ppm时,将复配型防蜡剂FI-2即PI40:EVA32:PMA比例为6:3:1作用于油样芳葡86-S-026时防蜡效果最佳,防蜡率最高可达到83.6%。
[Abstract]:Oil plays a vital role in the development of today's society, and the demand for petroleum energy is increasing with the development of society. Most of the crude oil in China belongs to high freezing point crude oil. This physical property of crude oil has brought some difficulties to the exploitation and transportation of crude oil. By adding a wax-proof agent to change the low temperature fluidity of crude oil, it can reduce the difficulty of crude oil exploitation. Saving transportation cost. Because of the problem of secondary pollution of the wax inhibitor used at present, this paper studies the performance of two kinds of simulated oil to the safety and environmental protection type wax inhibitor. This paper provides some theoretical basis for the exploitation of crude oil and the development of waxproof agent. By studying the influence of solvent on the effect of waxproof agent, it is concluded that the diesel oil has good solubility and little environmental pollution. By changing the reaction time and reaction temperature, the environmental antiwaxant was applied to the simulated oil with different wax content. The optimum reaction conditions for the simulated oil with wax content of 15% and 25% were as follows: reaction time 40 min, reaction temperature 60 鈩,
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