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合成了一种阳离子型清水剂,并对其结构进行了红外谱图、核磁共振谱图表征分析,结果表明该产品与目标产物结构一致。在南海某油田对其净水性能做了现场瓶试试验,在投加量为14 mg/L时,其净水效果良好,下层水中含油质量浓度为79 mg/L。在和多种清水剂的对比试验中发现,该产品的处理效果优于其他几种药剂。 相似文献
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通过评价筛选以及现场应用试验,研究了絮凝剂Q-202在海上某油田污水处理系统的应用效果,确定了絮凝剂Q-202的加注浓度。试验结果表明,在絮凝剂Q-202加注量为17mg/L、清水剂加注量为14mg/L时,污水处理系统各级流程保持稳定,斜板除油器以及气浮选器出口污水含油明显降低,注水缓冲罐出口含油值稳定在10mg/L左右,满足国家排放标准要求。 相似文献
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为解决海上油田水处理流程中斜板除油器出水水质波动大问题,进行清水剂优化实验,进行了药剂配伍性、除油效果室内实验,并在现场工艺流程中应用。新药剂BHQ-435与原药剂BHQ-133、BHQ-391配伍性良好,药剂混合分布均匀、无絮凝物产生;清水剂BHQ-435在加入浓度为15~20μL/L时,水中含油值降幅明显,除油效果好,当浓度超过20μL/L后,含油值变化不大;清水剂BHQ-435在目前流程状态和处理量下,注入量为15μL/L,即可保证斜板除油器的除油效果。 相似文献
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试验根据大庆油田含油污水的水质特性,开展改性聚四氟乙烯膜精细过滤技术处理油田含油污水的探索性小型试验装置现场试验,通过试验确定改性聚四氟乙烯膜精细过滤应用于大庆油田含油污水处理技术上是可行的。现场试验结果表明,经改性聚四氟乙烯膜精细过滤处理后的出水水质能够达到大庆油田低渗透率油层回注水水质控制指标(即:含油质量浓度≤8.0mg/L、悬浮固体质量浓度≤3.0mg/L、颗粒粒径中值≤2.0μm),并初步确定了改性聚四氟乙烯膜精细过滤器的结构和设计参数,为下一步的放大试验奠定了基础。 相似文献
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化学驱产出液处理一直是困扰渤海Z油田的难题。针对使用疏水缔合聚合物的Z油田,开展破乳剂、反相破乳剂及清水剂的筛选及评价,并开展各类药剂的浓度梯度实验,从而优化筛选出适合该油田的产出液处理药剂,并确定各类药剂的最佳使用浓度。结果表明:在与现场工况完全一致的情况下,以脱水速率、油水界面情况、油中含水、脱出水水质为主要评价指标,优选出脱水效果较好的PRJ-3破乳剂,其最佳加药浓度为110mg/L;优选出性能较好的反相破乳剂FPR-1和FPR-7,它们与破乳剂PRJ-3有良好的协同性,最佳加药浓度为300mg/L;筛选出具有良好净水效果的清水剂QSJ-1、QSJ-2和QSJ-3,且当净水剂加入浓度为200mg/L时即可发挥较好的清水效果,能较好地净化C平台斜板除油器前的生产污水。 相似文献
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渤海N油田原油为重质稠油,稠油密度高,油水密度差小,同时由于气浮设备结构不合理,增加了油水分离难度。通过研究及现场改造,将射流气浮更改为微气浮、罐体内部分隔为3级混合区+浮选分离区及在第3级浮选分离区加装斜板除油装置、优化收油结构,提高了设备的处理效果。当进水含油质量浓度小于800 mg/L时,出水含油质量浓度可以降低到40 mg/L以下;当进水含油质量浓度为140~200 mg/L时,出水含油质量浓度可稳定在16 mg/L以下。为最终处理后污水满足回注标准奠定基础。 相似文献
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乙烯酮(双乙烯酮)是十分重要的化工中间体,其下游产品较多。江苏某化工厂开发生产乙烯酮(双乙烯酮)下游产品三十多个,年生产规模三万多吨,是国内以乙烯酮(双乙烯酮)为中间体生产精细化学品的综合骨干企业。针对乙烯酮(双乙烯酮)下游产品废水特点,该厂结合企业实际,开展了产品优化,结构调整,清洁生产,资源循环利用,节水降耗等工作,从源头削减了污染物的生产。同时投资二千多万元新建预处理装置三套,6000m3/d废水生化处理装置一套,使全厂乙烯酮(双乙烯酮)下游产品的废水得到了有效的治理。 相似文献
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D. G. Gordeev L. F. Gudarenko M. V. Zhernokletov V. G. Kudel’kin M. A. Mochalov 《Combustion, Explosion, and Shock Waves》2008,44(2):177-189
A semi-empirical equation of state for metals is described. Its capabilities are demonstrated by the example of the equation
of state for aluminum. New experimental data are presented on the location of the isentrope of aluminum for unloading from
the state at p = 229.71 GPa on the shock adiabat to an aerogel (SiO2) of density 0.08 g/cm3.
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Translated from Fizika Goreniya i Vzryva, Vol. 44, No. 2, pp. 61–75, March–April, 2008. 相似文献
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Jorge Marcelo Romero Soledad Bustillo Hugo Enrique Ramirez Maisuls Nelly Lidia Jorge Manuel Eduardo Gómez Vara Eduardo Alberto Castro Alicia H. Jubert 《International journal of molecular sciences》2007,8(7):688-694
A thermochemical rather simple experimental technique is applied to determine the enthalpy of formation of Diperoxide of ciclohexanone. The study is complemented with suitable theoretical calculations at the semiempirical and ab initio levels. A particular satisfactory agreement between both ways is found for the ab initio calculation at the 6–311G basis This set level. Some possible extensions of the present procedure are pointed out. 相似文献
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A perturbation viscometer is a differential capillary viscometer that measures the logarithmic viscosity gradient of the viscosity-composition curve for gas mixtures. Measurements are made at different gas mixture compositions. Integration of the logarithmic viscosity gradients measured over the full composition range gives the mixture viscosity relative to the viscosity of one of the pure components of the gas mixture. This method is attractive because, for measurements of equal precision, integration of the gradients is potentially an order of magnitude more precise than measurement of the viscosities directly. It can also work at high and low temperatures and perhaps high pressures.The perturbation viscometer has been used to make measurements on ideal gas mixtures at ambient and elevated temperatures. The situation is more complicated when the gas mixtures are non-ideal. Extra effects due to density differences, molar volume change on mixing and differential thermal expansion may be measured in addition to the desired viscosity change producing systematic errors in the results. Thus, a more sophisticated apparatus is required. The standard perturbation viscometer has been modified to separate out the extra effects to permit measurement of the true change in viscosity. In addition, the theoretical operation of the modified apparatus has been revised to account for the design changes to permit calculation of the viscosity-composition profiles from the results.The apparatus has been tested using helium-HFC-125 mixtures and two new viscosity-composition profiles are presented for these mixtures at 23 and . Internal consistency tests have been used to confirm that the data produced are of high quality with an estimated uncertainty in the viscosity ratio data at of 0.9% and at of 1.5%. 相似文献
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醋酸纤维素取代基分布与性质的关系 总被引:9,自引:0,他引:9
分析了以吡啶为溶剂的醋酸纤维素的13C-NMR核磁共振谱,得出了三种不同位置羟基的取代度。结合X—射线和DSC分析,初步说明具有相同取代度但未经水解和经过水解的醋酸纤维素(CA) 性质上的差异是由于三个羟基上的取代度分布不同及消晶程度差异所致。 相似文献