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- wax pour point 蜡凝固点
- It has excellent pour point since it contains no wax, having a good thermal stability. 它具有优良的倾点,因为它不包含任何蜡,具有良好的热稳定性。
- The mostly used solvent Dewaxing (SDW) process uses MEK/toluene to remove wax (various forms of paraffins) by crystallization and filtration to achieve the desired pour point. 其中最为通用的就是使用炳酮(MEK)/甲苯溶剂,经由冷冻结晶和过滤用以脱腊(各种石腊烃)的方式,以得到希望的流动点目标。
- Conventional Catalytic Dewaxing (CDW) processes lower base oil (or gas oil) pour point by using a zeolite containing catalyst to selectively cracle wax mainly to naphtha and LPG. 吾人亦可利用传统的触媒脱腊程序,使用择形性触媒,把腊裂解为轻油和LPG,以降低基础油(或制气油)的流动点。
- The effects of alkyl-naphthalene which is one of the pour point depressants (PPD) on the amount of wax precipitated from the simulation oil are studied in this work. 研究了降凝剂(PPD)对模拟油中蜡析出的影响,用高速离心机对特定温度下析出的蜡进行了分离,得到了加剂前后不同温度下的析蜡量;
- The main features of the crude oil in fault block Shen 84 of Shenyang oil field are high wax content, high pour point, and low contents of gum and asphaltine. 沈阳油田沈84断块原油的主要特点是高含蜡、高凝固点,低胶质和低沥青质含量。
- The characteristic groups of polymeric pour point depressant(PPD)were analyzed by FT-IR and NMR techniques.The crystallization properties of various types of wax and PPD were measured by XRD. 采用红外光谱仪、核磁共振波谱仪对聚合物的合成特征基团进行了表征,并采用X射线衍射仪对不同型号蜡及降凝剂的结晶性能进行了分析测试。
- Depression of the pour point of diesel oil and improve its fluidity in subzero. 降低各种柴油的冷凝点和冷滤点,提高其低温流动性。
- A pour point depressant (PPD) for improving the cold fluidity of diesel oils was studied. 摘要对柴油降凝剂进行了研究,降凝剂为苯乙烯、顺丁烯二酸酐及正十八胺三元共聚物。
- PPA-69 vibrating type pour point analyzer can automatically determine the pour point of oil product stream on line. PPA-69型振动式倾点分析仪是在线测定油品倾点(凝点)的自动化仪器,其样机经多年的现场试用和不断改进,已制成了防爆型仪器,其流路为全封闭式结构,在一定的条件下,不需样品处理和回收系统。
- A terpolymer of styrene,diisooctyl maleate,octadelyl acrylate was synthesized as pour point depressant for base-oils. 合成了苯乙烯-马来酸二异辛酯-丙烯酸十八酯三元共聚物用作基础油降凝剂。
- This study provides parameters for EOR experiment of high pour point oil reservoir. 该研究可以为高凝油藏提高采收率试验提供参考。
- At last,we discuses the use of pour point depressant and viscosity reducer for super viscosity crude oil. 同时对特稠油的降凝降粘应用作了一定探讨。
- Synthesis and purification of long chain alkyl acrylate as intermediate of pour point depressant were introduced . 介绍了降凝剂中间体丙烯酸高碳醇酯的合成和产品分离提纯方法。
- Practice shows that it is effective to apply this technology to heavy oil, high pour point oilfoeld extration. 实践表明,对于开采难度大的稠油、高凝油油田,采用井下热水循环工艺是一项行之有效的工艺技术。
- The copolymers of EFMA have effects on pour point depression and viscosity reduction of waxy crude oil. 合成了EFMA降凝剂,并考察了它的合成条件和降凝效果。
- An application of wheel flow simulator in the evaluation of pour point depressant is described in this paper. 探讨了用转轮流动模拟器评价原油降凝剂的效果和模拟输油管道输送添加降凝剂含蜡原油的工业性试验的可行性。
- This paper studies shear effect on the viscosity and gel point of Daqing waxy crude beneficiated* by pour point depressant (PPD) through experiments. 通过管流剪切、过泵剪切模拟试验以及管输模拟试验,研究了剪切作用对加剂大庆原油粘度和凝点的影响。
- The pour point depressant(PPD)and drag reduction agent(DRA)play a key role in the oil transportation in Kelamayi Oilfield. “两剂”(降凝剂和减阻剂)在克拉玛依油田原油外输中发挥了非常重要的作用。
- The Gargoyle Arctic Oil group has good oxidation stability, low pour point, good demulsibility and excellent resistance to foaming. 佳高冷冻机油有良好的抗氧化性能,凝点低,抗乳化性能良好及有极佳之抗泡沫性能。