Design and Analysis for Partition Plate of Gravity Oil-Water Separator

2014 ◽  
Vol 675-677 ◽  
pp. 669-673
Author(s):  
Hong Jun Liu ◽  
Guang Zheng Jia ◽  
Yong Peng Cai ◽  
Shi Peng Chen
Keyword(s):  
Flow Field ◽  
Internal Structure ◽  
Velocity Vector ◽  
Separation Efficiency ◽  
Water Separation ◽  
Water Separator ◽  
Oil Water Separation ◽  
Working Principle ◽  
Oil Water

The internal structure and the working principle of gravity oil-water separator used for self-circulation well-flushing equipment were given. Based on CFD, the flow field was calculated and analyzed with partition plate settings. The influences on separation efficiency were analyzed, according to velocity vector diagrams and oil drop trajectory diagrams. The results show that the location of the primary partition plate is installed more reasonable, the efficiency of separation is more advantage. Also, the structure and size of the primary partition plate and the size of the auxiliary partition plate can influence the efficiency of oil-water separation regularly.

Optimization of Flow Deflector Quantities for Gravity Oil-Water Separator

2014 ◽  
Vol 675-677 ◽  
pp. 685-688 ◽  
Author(s):  
Hong Jun Liu ◽  
Guang Zheng Jia ◽  
Shi Peng Chen ◽  
Yong Peng Cai
Keyword(s):  
Flow Field ◽  
Internal Structure ◽  
Velocity Vector ◽  
Separation Efficiency ◽  
Optimal Value ◽  
Water Separator ◽  
Working Principle ◽  
Oil Water ◽  
Flow Deflector

The internal structure and the working principle of gravity oil-water separator used for self-circulation well-flushing equipment were introduced. Based on CFD, the flow field was calculated and analyzed with different quantities of horizontal deflectors and inclined deflectors in the separator. According to velocity vector diagrams and oil drop trajectory diagrams with different number of horizontal deflectors and inclined deflectors, the influence rules on separation efficiency were analyzed. The results show that the separation efficiency is improved gradually with the amount of horizontal deflectors increased, and the optimal value of separation efficiency is 3 inclined deflectors.

Design and Simulation Optimization of the Gravity Oil-Water Separator

2014 ◽  
Vol 955-959 ◽  
pp. 2756-2759
Author(s):  
Lei Qiu ◽  
Ji Hai Duan
Keyword(s):  
Flow Field ◽  
Separation Efficiency ◽  
Water Separation ◽  
Perforated Plates ◽  
Water Separator ◽  
Field Uniformity ◽  
Oil Water Separation ◽  
Oil Water ◽  
Back Mixing ◽  
Inclined Plates

An oil/water separator with inlet component, perforated plates and coalesence internals was designed in this paper. The influence of the perforated plates on the flow field and the structures of coalesence component on the oil/water separation were simulated by commercial software FLUENT. The results show that the perforated plates can prevent turbulence and eliminate back-mixing flow effectively. And the flow field uniformity was the best,when the distance between the two plates was 140mm.The separator with inclined plates had the highest separation efficiency of the three structures.

scholarly journals Dodecyl Mercaptan Functionalized Copper Mesh for Water Repellence and Oil-water Separation

2021 ◽  
Vol 18 (4) ◽  
pp. 887-899
Author(s):  
Yanling Tian ◽  
Jiekai Feng ◽  
Zexin Cai ◽  
Jiaqi Chao ◽  
Dawei Zhang ◽  
...  
Keyword(s):  
Separation Efficiency ◽  
Synthesis Process ◽  
Water Separation ◽  
Oil Water Separation ◽  
One Step ◽  
Oil Water ◽  
Water Repellence ◽  
Copper Mesh ◽  
Dodecyl Mercaptan

AbstractReckless discharge of industrial wastewater and domestic sewage as well as frequent leakage of crude oil have caused serious environmental problems and posed severe threat to human survival. Various nature inspired superhy-drophobic surfaces have been successfully applied in oily water remediation. However, further improvements are still urgently needed for practical application in terms of facile synthesis process and long-term durability towards harsh environment. Herein, we propose a simple one-step dodecyl mercaptan functionalization method to fabricate Super-hydrophobic-Superoleophilic Copper Mesh (SSCM). The prepared SSCM possesses excellent water repellence and oil affinity, enabling it to successfully separate various oil-water mixtures with high separation efficiency (e.g., > 99% for hexadecane-water mixture). The SSCM retains high separating ability when hot water and strong corrosive aqueous solutions are used to simulate oil-water mixtures, indicating remarkable chemical durability of the dodecyl mercaptan functionalized copper mesh. Additionally, the efficiency can be well maintained during 50 cycles of separation, and the water repellence is even stable after storage in air for 120 days, demonstrating the reusability and long-term stability of the SSCM. Furthermore, the functionalized mesh also shows good mechanical robustness towards abrasion by sandpaper, and oil-water separation efficiency of > 96% can be obtained after 10 cycles of abrasion. The reported one-step dodecyl mercaptan functionalization could be a simple method for increasing the water repellence of copper mesh, and thereby be a great candidate for treating large-scale oily wastewater in harsh environments.

scholarly journals Fabricated of Superhydrophobic Silanized Melamine Sponge with Photochromic Properties for Efficiency Oil/Water Separation

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Peng Hong ◽  
Zhu Liu ◽  
Yang Gao ◽  
Yubin Chen ◽  
Mingxun Zhuang ◽  
...  
Keyword(s):  
Large Scale ◽  
Separation Efficiency ◽  
Low Cost ◽  
Water Repellency ◽  
Dip Coating ◽  
Absorption Capacity ◽  
Photochromic Properties ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water

Superhydrophobic sponge as potential absorbing material for oil/water separation is attracting great attention recently. However, there are still some challenges to feasibly fabricate superhydrophobic sponge with large scale and low cost. Herein, a novel photochromic superhydrophobic melamine sponge (PDMS-SP sponge) is fabricated by facilely dip-coating and thermocuring of hydroxyl-terminated polydimethylsiloxanes mixed with photochromic spiropyran. FT-IR, EDS, and XPS results confirm the successful coating of PDMS-SP upon melamine sponge. The resultant sponge not only possesses excellent water repellency with a contact angle of 154.5° and oil-water separation efficiency with an oil absorption capacity of 48–116 folds of itself weight, but also shows photochromic phenomenon between colorless and purple when it is successively exposed to UV irradiation and visible light.

scholarly journals PP/TiO2 Melt-Blown Membranes for Oil/Water Separation and Photocatalysis: Manufacturing Techniques and Property Evaluations

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 775 ◽  
Author(s):  
Fei Sun ◽  
Ting-Ting Li ◽  
Haitao Ren ◽  
Qian Jiang ◽  
Hao-Kai Peng ◽  
...  
Keyword(s):  
Separation Efficiency ◽  
Decomposition Temperature ◽  
Particle Dispersion ◽  
Tio2 Content ◽  
Scanning Calorimetry ◽  
Water Separation ◽  
Photocatalytic Effect ◽  
Oil Water Separation ◽  
Oil Water ◽  
Manufacturing Techniques

This study aims to produce polypropylene (PP)/titanium dioxide (TiO2) melt-blown membranes for oil/water separation and photocatalysis. PP and different contents of TiO2 are melt-blended to prepare master batches using a single screw extruder. The master batches are then fabricated into PP/TiO2 melt-blown membranes. The thermal properties of the master batches are analyzed using differential scanning calorimetry and thermogravimetric analysis, and their particle dispersion and melt-blown membrane morphology are evaluated by scanning electron microscopy. TiO2 loaded on melt-blown membranes is confirmed by X-ray diffraction (XRD). The oil/water separation ability of the melt-blown membranes is evaluated to examine the influence of TiO2 content. Results show that the thermal stability and photocatalytic effect of the membranes increase with TiO2 content. TiO2 shows a good dispersion in the PP membranes. After 3 wt.% TiO2 addition, crystallinity increases by 6.4%, thermal decomposition temperature increases by 25 °C compared with pure PP membranes. The resultant PP/TiO2 melt-blown membrane has a good morphology, and better hydrophobicity even in acetone solution or 6 h ultraviolet irradiation, and a high oil flux of about 15,000 L·m−2·h−1. Moreover, the membranes have stabilized oil/water separation efficiency after being repeatedly used. The proposed melt-blown membranes are suitable for mass production for separating oil from water in massively industrial dyeing wastewater.

scholarly journals Facile Fabrication of Magnetic, Durable and Superhydrophobic Cotton for Efficient Oil/Water Separation

Polymers ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 442 ◽  
Author(s):  
Mingguang Yu ◽  
Qing Wang ◽  
Wenxin Yang ◽  
Yonghang Xu ◽  
Min Zhang ◽  
...  
Keyword(s):  
Separation Efficiency ◽  
Water Repellency ◽  
Cotton Fabrics ◽  
Ammonia Solution ◽  
Hot Water ◽  
Water Contact ◽  
Water Separation ◽  
Efficient Strategy ◽  
Oil Water Separation ◽  
Oil Water

In this paper, we present a facile and efficient strategy for the fabrication of magnetic, durable, and superhydrophobic cotton for oil/water separation. The superhydrophobic cotton functionalized with Fe3O4 magnetic nanoparticles was prepared via the in situ coprecipitation of Fe2+/Fe3+ ions under ammonia solution on cotton fabrics using polyvinylpyrrolidone (PVP) as a coupling agent and hydrophobic treatment with tridecafluorooctyl triethoxysilane (FAS) in sequence. The as-prepared cotton demonstrated excellent superhydrophobicity with a water contact angle of 155.6° ± 1.2° and good magnetic responsiveness. Under the control of the external magnetic field, the cotton fabrics could be easily controlled to absorb the oil from water as oil absorbents, showing high oil/water separation efficiency, even in hot water. Moreover, the cotton demonstrated remarkable mechanical durable properties, being strongly friction-resistant against sandpaper and finger wipe, while maintaining its water repellency. This study developed a novel and efficient strategy for the construction of magnetic, durable, and superhydrophobic biomass-based adsorbent for oil/water separation, which can be easily scaled up for practical oil absorption.

Comparison of Different Grid Structures for the Hydrocyclone Flow Field Simulation

2013 ◽  
Vol 353-356 ◽  
pp. 3399-3402
Author(s):  
Guang Dong Guo ◽  
Song Sheng Deng ◽  
Wei Xing Hua
Keyword(s):  
Flow Field ◽  
Single Phase ◽  
Unstructured Grid ◽  
Water Separation ◽  
Memory Space ◽  
Structured Grid ◽  
Oil Water Separation ◽  
Oil Water ◽  
Hybrid Grid ◽  
Made In

In the CFD(computational fluid dynamics) study of hydrocyclones, the grid is a important factor to predicting the flow field. An attempt has been made in this study, in the same turbulence model and boundary conditions, three different structures of grid, the structured grid, the unstructured grid and the hybrid grid, are compared for the predictions of the axial, radial and tangential velocities. It has been observed that the memory space structured grid is large, and there are much number grid of the unstructured grid. The structured grid led to an improved turbulence field prediction and thereby to predict the velocity fields of single phase flow field more accurately. The unstructured grids is used to simulate the process of oil-water separation.

Scaly bionic structures constructed on a polyester fabric with anti-fouling and anti-bacterial properties for highly efficient oil–water separation

RSC Advances ◽  
2016 ◽  
Vol 6 (90) ◽  
pp. 87332-87340 ◽  
Author(s):  
Y. W. Liu ◽  
C. H. Zhang ◽  
Z. Q. Wang ◽  
X. Fu ◽  
R. Wei
Keyword(s):  
Separation Efficiency ◽  
Polyester Fabric ◽  
Water Separation ◽  
Highly Efficient ◽  
Oil Water Separation ◽  
Oil Water ◽  
Underwater Superoleophobicity

Scaly structure bionic structured on the fabric with superhydrophilicity and underwater superoleophobicity. The modified fabric showed excellent separation efficiency for various oil–water mixtures which could solve oil–water separation issue.

Investigating the effect of surface composition and morphology on oil/water separation efficiency of sponges coated with polymer nanocomposites

2018 ◽  
Vol 40 (S1) ◽  
pp. E431-E439 ◽  
Author(s):  
Mahdi Akhavan ◽  
Iman Hejazi ◽  
Javad Seyfi ◽  
Samira Ghiyasi ◽  
Seyyed Saeed Ghorashi ◽  
...  
Keyword(s):  
Polymer Nanocomposites ◽  
Surface Composition ◽  
Separation Efficiency ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Effect Of Surface
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