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《应用化工》2022,(2):376-379
为高效快速处理聚驱采油污水,采用不同清水剂、按照平台污水处理流程-缓冲罐、斜板除油器、气浮选器及双介质过滤器等处理单元组成的工艺流程,在流程不同位置加入清水剂处理含聚采油污水。结果表明,非离子清水剂RPEO的除油率优于DPEO,阴离子清水剂CH-2的除油率优于CH-1和CH-3;RPEO和CH-2的除油率分别为97.1%和95.0%,RPEO和CH-2最佳的加药位置分别为含聚采油污水处理设备中的加药位置1和加药位置2。优化的"100 mg/L RPEO+50 mg/L CH-2"复配清水剂处理含聚采油污水的除油率达99.9%,二者复配后能提升含聚采油污水的处理效果。在流程处理单元设备中,加入RPEO/CH-2复配清水剂,斜板除油器出口污水的除油率达99.8%,除油效率高。 相似文献
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针对胜利油田东一含聚污水处理站现有重力自然除油处理工艺不能满足含聚污水的处理需求,而采用加药混凝重力沉降工艺处理含聚污水又会带来产生大量含聚污泥等处置难题,开展多流态梯级强化气浮法物理法除油工艺室内模拟试验研究,确定了多流态梯级强化气浮除油器在最佳运行参数:循环压力为0.11 MPa、气水比为4.17下,原水含油3 684.00 mg/L,含聚量184 mg/L时,一级多流态梯级强化气浮工艺出水含油量为110 mg/L,两级气浮出水出水含油量为50 mg/L,除油率为98.6%。实现了含聚污水的物理法高效除油,处理过程中,除去的原油全部回收,无污泥产生,应用前景广阔。 相似文献
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采用共沉淀法合成出Fe_3O_4/氧化石墨烯(GO)纳米复合材料,然后通过静电作用将聚二烯丙基二甲基氯化铵(PDDA)修饰在Fe_3O_4/GO表面,制备出一种新型除油剂PDDA/Fe3O4/GO,并考察了Fe3O4与GO配比、p H、温度、反应时间和除油剂投加量等因素对除油效果的影响。实验结果表明:PDDA/Fe_3O_4/GO不仅除油性能良好,而且除油速度快;在室温20℃、反应时间10 min、投加质量浓度为300 mg/L的条件下,可将油田污水中的油降至50 mg/L以下。该除油剂具有制备方法简单、除油速度快、易于操作、可重复利用等特点,为油田污水处理提供了一种新的研究思路。 相似文献
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含聚污水的高效分离处理是注聚采出液处理的热点难点之一。结合LD10-1平台斜管除油器V-3010的设计运行参数,探讨了污水含聚量为200 mg/L时、斜管除油器中斜管倾角600、500、450和污水停留分离时间20 min时的斜管除油率为60.8%~72.5%,悬浮物去除率为56.37%~66.21%;斜管倾角500时和污水停留分离时间15~40 min时的斜管除油率为59.8%~79.5%,悬浮物去除率为54.23%~73.48%。污水含聚量在50~600 mg/L变化时斜管倾角500的除油率为75.91~61.7%,模拟现场流程与核桃壳过滤器串联使用后,处理后水中粒径中值的分布范围0.972~26.16μm。 相似文献
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《工业水处理》2015,(8)
为了解决国内某油田SAGD采油污水油水分离的难题,对SAGD采油污水的水质特性和乳化特性进行研究,针对该污水开发并筛选出最优的高效破乳剂,考察了投加量对污水破乳效果的影响,并进行破乳-絮凝复配试验。试验结果表明:该油田SAGD采油污水的油、悬浮物、硫、Fe2+含量均较高,乳化程度严重且具有极强的乳化稳定性,油水分离困难;当破乳温度为65℃、停留时间为2 h时,投加500 mg/L无机药剂2#时除油率为87.7%,在破乳后的水样中投加2.5 mg/L的PAM6#,油可降至27.0 mg/L,悬浮物降至9.8 mg/L,处理后水样达到该油田回注水的水质标准。 相似文献
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Dinesh Singh J. K. Gehlawat Musti S. Rao 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》1990,47(2):127-136
Oslefins and diolefins are important intermediates in the petrochemical industry and the future promises a further substantial increase in demand. While several catalysts have been formulated in the past for the abstraction of hydrogen from butenes and propylene, these catalysts are inefficient in the abstraction of first hydrogen from butane. Bismuth molybdates (β and γ-phases) containing iron oxide and supported on alumina are used as catalysts in the present investigation on the oxidative dehydrogenation of n-butane. Effects of catalyst content, temperature and oxygen: n-butane ratio on conversion and selectivity to butadiene and (C4H8 + C4H6) are studied in the following ranges of experimental conditions: β-bismuth molybdate/100 mol support I(K), 3–9; γ-bismuth molybdate/100 mol support I(K), 5-20; temperature, 400–500°C; O2: butane ratio, 0.6:1.7. 相似文献
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考登钢作为一种高耐候结构钢,广泛应用于各个领域。在火力发电方面,考登钢主要应用在工作环境比较恶劣的烟气加热器和空气预热器中。考登钢表面涂搪的目的就是进一步提高其耐腐蚀性能,延长使用寿命。为了提高考登钢元件的使用寿命,对考登钢表面涂搪瓷的可行性、密着性能、瓷釉、工艺控制、质量保证等方面进行了研究。 相似文献
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A viscometer used to measure the viscosity of 10 μl of a liquid, must be miniaturized down, and the liquid velocity gradient in the channel used to determine the viscosity coefficient. Two major factors that affect the liquid velocity are the mechanical forces exerted by the mechanical motors and electromagnetic forces. In this study, electrowetting on dielectric (EWOD) is adopted to drive liquids. Variously sized electrodes on a chip, and two shapes of channel are employed to measure the velocity gradient to determine the viscosity coefficient. The device is fabricated by microelectromechanical system (MEMS) technology. The dielectric layer used in EWOD has a high dielectric constant, BST (Ba0.7Sr0.3TiO3), to reduce the required applied voltage; its surface is coated with hydrophobic polymer, polytetrafluoro-ethylene (PTFE, Teflon® AF DuPont). Experimental results demonstrate that liquids can be pulled at 660 μm/s in linear channels by applying a voltage of 15 V. 相似文献
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In reexamining medium effects on photochemical reactions, we have emphasized those on unequilibrated excited species such as the Franck-Condon species. Despite recent advances in femtochemistry, such a discussion in molecular photochemistry is uncommon, and the problem remains challenging on account of the extremely short-lived excited species. However, in such cases, a small perturbation resulting from, for example, weak guest-host interactions could turn into a determining factor in dictating the course of a photochemical channel of deactivation. Examples of medium-directed diabatic processes have been examined with this idea in mind. A modified view on rhodopsin photoisomerization is presented along with the consideration that confinement does not necessarily lead to inhibition of reactions of the trapped substrate. 相似文献
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研究了温度和pH值对漆酶酶活以及漆酶处理纤维压制纤维板性能的影响。结果表明,pH较低、温度较高时漆酶酶活较高,压制的纤维板强度性能较好。但温度太高(60~80℃),延长加热时间,漆酶稳定性变差,酶活明显降低,压制纤维板的强度下降。 相似文献
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探讨了株化集团在企业管理及改革等方面的经验。该公司为适应市场经济的变革制订了科学的发展规划、思路和目标;确定了目标管理实施方案和各项制度;强化销售工作和质量管理,加大科技投入,加强科技创新活动;理顺各种关系,做好各项有关工作,使企业的经济效益和对社会的贡献逐年增大。 相似文献