Oil Water Separation By Centrifugal Force

2015 ◽  
Vol 7 (1) ◽  
Author(s):  
Anshita Awasthi ◽  
Akansha Srivastava
Keyword(s):  
Crude Oil ◽  
Oil Spill ◽  
Oil Spills ◽  
Separation Efficiency ◽  
Petroleum Products ◽  
Offshore Platforms ◽  
Water Separation ◽  
Oil Water ◽  
Marine Areas ◽  
Drilling Rigs

An oil spill is the release of a liquid petroleum hydrocarbon into the environment, especially marine areas, due to human activity, and is a form of pollution. The term is usually applied to marine oil spills, where oil is released into the ocean or coastal waters, but spills may also occur on land. Oil spills may be due to releases of crude oil from tankers, offshore platforms, drilling rigs and wells, as well as spills of refined petroleum products (such as gasoline, diesel) and their by-products, heavier fuels used by large ships such as bunker fuel, or the spill of any oily refuse or waste oil. This paper deals with the problem of recovery of spilled crude oil. It has been observed that the separation efficiency is greater for high range of viscosity and oil water ratios. Separation efficiency data on tests of water versus diesel, crude oil, and IS0 460 gear oil will be presented for two sizes of separators. Oil spills can have disastrous consequences for society; both economically and environmentally. As a result of these consequences oil spill accidents can initiate intense media attention and political uproar. Despite substantial national and international policy improvements on preventing oil spills adopted in recent decades, large oil spills keep occurring.

scholarly journals Superwetting Polymeric Three Dimensional (3D) Porous Materials for Oil/Water Separation: A Review

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 806 ◽  
Author(s):  
Yihao Guan ◽  
Fangqin Cheng ◽  
Zihe Pan
Keyword(s):  
Porous Materials ◽  
Oil Spills ◽  
Mechanical Stability ◽  
Separation Efficiency ◽  
Three Dimensional ◽  
High Porosity ◽  
Water Separation ◽  
Term Operation ◽  
Oil Water Separation ◽  
Oil Water

Oil spills and the emission of oily wastewater have triggered serious water pollution and environment problems. Effectively separating oil and water is a world-wide challenge and extensive efforts have been made to solve this issue. Interfacial super-wetting separation materials e.g., sponge, foams, and aerogels with high porosity tunable pore structures, are regarded as effective media to selectively remove oil and water. This review article reports the latest progress of polymeric three dimensional porous materials (3D-PMs) with super wettability to separate oil/water mixtures. The theories on developing super-wetting porous surfaces and the effects of wettability on oil/water separation have been discussed. The typical 3D porous structures (e.g., sponge, foam, and aerogel), commonly used polymers, and the most reported techniques involved in developing desired porous networks have been reviewed. The performances of 3D-PMs such as oil/water separation efficiency, elasticity, and mechanical stability are discussed. Additionally, the current challenges in the fabrication and long-term operation of super-wetting 3D-PMs in oil/water separation have also been introduced.

scholarly journals Bioremediation of Total Petroleum Hydrocarbons (TPH) by Bioaugmentation and Biostimulation in Water with Floating Oil Spill Containment Booms as Bioreactor Basin

2021 ◽  
Vol 18 (5) ◽  
pp. 2226
Author(s):  
Khalid Sayed ◽  
Lavania Baloo ◽  
Naresh Kumar Sharma
Keyword(s):  
Crude Oil ◽  
Oil Spill ◽  
Petroleum Hydrocarbons ◽  
Biological Treatment ◽  
Oil Spills ◽  
Oil Pollution ◽  
Treatment Method ◽  
Petroleum Products ◽  
Total Petroleum Hydrocarbons ◽  
Petroleum Refinery Effluent

A crude oil spill is a common issue during offshore oil drilling, transport and transfer to onshore. Second, the production of petroleum refinery effluent is known to cause pollution due to its toxic effluent discharge. Sea habitats and onshore soil biota are affected by total petroleum hydrocarbons (TPH) as a pollutant in their natural environment. Crude oil pollution in seawater, estuaries and beaches requires an efficient process of cleaning. To remove crude oil pollutants from seawater, various physicochemical and biological treatment methods have been applied worldwide. A biological treatment method using bacteria, fungi and algae has recently gained a lot of attention due to its efficiency and lower cost. This review introduces various studies related to the bioremediation of crude oil, TPH and related petroleum products by bioaugmentation and biostimulation or both together. Bioremediation studies mentioned in this paper can be used for treatment such as emulsified residual spilled oil in seawater with floating oil spill containment booms as an enclosed basin such as a bioreactor, for petroleum hydrocarbons as a pollutant that will help environmental researchers solve these problems and completely clean-up oil spills in seawater.

TURBYLEC: DEVELOPMENT AND EXPERIMENTAL VALIDATION OF AN INNOVATIVE CENTRIFUGAL OIL – WATER SEPARATOR

2014 ◽  
Vol 2014 (1) ◽  
pp. 634-648
Author(s):  
G. Maj ◽  
M. Laurent ◽  
M. Mastrangeli ◽  
Y. Lecoffre
Keyword(s):  
Oil Spill ◽  
Experimental Validation ◽  
Separation Efficiency ◽  
Operating Conditions ◽  
Water Release ◽  
Water Separation ◽  
Water Separator ◽  
Oil Water ◽  
Separation Performances ◽  
Oil Spill Remediation

ABSTRACT An innovative oil/water separator (TURBYLEC) has been developed in the frame of the HOVERSPILLTM European project (Fast Air Cushion platform for Oil Spill Remediation), partly funded by the European Commission's 7th Framework Program. Conventional separation solutions are not appropriate to the remediation scenarios targeted by the HOVERSPILLTM project, mainly because low weight and compactness are absolutely required for transportation on a hovercraft. Namely, high separation efficiency, imposed to satisfy environmental legislation for water release, is particularly difficult to achieve with a compact separator when skimmed flow rate, oil content and density contrast are submitted to large variations. This paper describes the development of a customized patented centrifuge separator devoted to the specific needs of the HOVERSPILLTM project. Conceptual studies, prototype manufacturing and experimental validation are described. The TURBYLEC prototype tested at CEDRE's facilities has a bulk (size and weight) compatible with its integration on the HOVERSPILLTM platform. Tests results show that TURBYLEC matches with expected use (i.e. downstream of a non-selective skimmer). In this configuration, TURBYLEC separator shows very good oil / water separation performances for inlet oil contents up to 25%. In this range of operating conditions its cut diameter has been evaluated to 60 μm. In order to achieve the same separation performances as with TURBYLEC, which weighs only 70 kg (with liquids), it would be necessary to install an 8 m3 gravity separator. TURBYLEC separator has been developed for a very specific duty (i.e. for integration on an Hovercraft for Oil Spill remediation). Nevertheless, its proven performances render it particularly attractive, as a standalone system, for many other specific tasks in the field of oil spill remediation. It could also interest various other water treatment applications.

scholarly journals Recent Developments and Advancements in Graphene-Based Technologies for Oil Spill Cleanup and Oil–Water Separation Processes

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 87
Author(s):  
Salma Elhenawy ◽  
Majeda Khraisheh ◽  
Fares AlMomani ◽  
Mohammad K. Hassan ◽  
Mohammad A. Al-Ghouti ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oil Spill ◽  
Large Scale ◽  
Oil Spills ◽  
Petroleum Industry ◽  
Water Separation ◽  
Wide Range ◽  
Oil Water Separation ◽  
Oil Water ◽  
Oil Spill Cleanup

The vast demand for petroleum industry products led to the increased production of oily wastewaters and has led to many possible separation technologies. In addition to production-related oily wastewater, direct oil spills are associated with detrimental effects on the local ecosystems. Accordingly, this review paper aims to tackle the oil spill cleanup issue as well as water separation by providing a wide range of graphene-based technologies. These include graphene-based membranes; graphene sponges; graphene-decorated meshes; graphene hydrogels; graphene aerogels; graphene foam; and graphene-coated cotton. Sponges and aerogels modified by graphene and reduced graphene oxide demonstrated effective oil water separation owing to their superhydrophobic/superoleophilic properties. In addition, oil particles are intercepted while allowing water molecules to penetrate the graphene-oxide-coated metal meshes and membranes thanks to their superhydrophilic/underwater superoleophobic properties. Finally, we offer future perspectives on oil water separation that are hindering the advancements of such technologies and their large-scale applications.

scholarly journals Biomimetic fabrication of superhydrophobic loofah sponge: robust for highly efficient oil–water separation in harsh environments

RSC Advances ◽  
2018 ◽  
Vol 8 (43) ◽  
pp. 24297-24304 ◽  
Author(s):  
Mingguang Yu ◽  
Binbin Lin ◽  
Shangxian Chen ◽  
Qianjun Deng ◽  
Guang Liu ◽  
...  
Keyword(s):  
Crude Oil ◽  
Oil Spill ◽  
Harsh Environments ◽  
Oily Wastewater ◽  
Water Separation ◽  
Loofah Sponge ◽  
Oil Water Separation ◽  
Important Field ◽  
Oil Water ◽  
Crude Oil Spill

Oil/water separation has become an increasingly important field due to frequent industrial oily wastewater emission and crude oil spill accidents.

Improvements in the Dehydration Process of Heavy Crude Oil, Using CFD: Case Study Campo Quifa-Colombia

2018 ◽  
Author(s):  
Miguel Asuaje Tovar ◽  
Nelson Benítez ◽  
Dario Quintero ◽  
Myriam R. Gaviria ◽  
Eduardo Díaz ◽  
...  
Keyword(s):  
Crude Oil ◽  
Separation Efficiency ◽  
Homogeneous Model ◽  
Free Water ◽  
Separation Process ◽  
Water Separation ◽  
Knock Out ◽  
Computational Calculations ◽  
Oil Water Separation ◽  
Oil Water

Quifa is one of the largest heavy-oil fields in Colombia with a total fluids production of 1,320 KBPD with a water cut of 96.7% through 272 active wells, approximatively. Facilities to handle such amounts of water, have to deliver crude oil under market specifications and clean up the water prior to its reinjection, require several stages of oil-water separation. The first phase in oil water separation process is Free Water Knock Out vessels (FWKO), which are in charge of extracting to extract most of the water, frequently assisted by heat or chemical products which help gravity to perform the separation. The treated water (which contain still some oil) is then directed to the following stage separation carried out by the big tanks called skimmers, which are designed to clean the water down to a few ppm of oil. Nowadays, even though the advance on computational calculations has increased, these tanks are frequently designed using only the concept of time of residence and considering the internal velocities to be as low as possible, so that improve separation. For these last considerations, FWKOs and Skimmers could have internal components like manifold or baffles. The present work explains a CFD (Computational Fluids Dynamics) study of different internal manifolds configurations, which aimed to improve the fluid distributions and velocities inside the tanks of Quifa field. Simulations were performed by CFX commercial software under two-phase flow eulerian-eulerian homogeneous model. The optimum manifold configuration, achieves uniform static pressure and flow distribution across the entire main pipe, reducing secondary internal flows and hydraulic losses. Then, CFD calculations were carried out in the whole skimmer tank, using the original manifold and the improved one. Results show an increase in the separation process, due to the new internal velocity field. Supported by the simulations results, these geometrical improvements in the internal manifolds were applied/constructed in one of the skimmer tanks in Quifa Field. Field results show an improvement on separation efficiency, going from 38% average efficiency in the original tanks (Skim-10 and Skim-30), up to 87% in the modified one (Skim-30). The quality of exit-water was reduced from 300 ppm average up to 77 ppm. The flow capacity of the skimmer 30 has been improved and can handle up to 600 KBFPD. This represents 62% more capacity than Skimmer 10, and 42% more than Skimmer 20.

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.

Fabrication of hydrophobic NiFe2O4@poly(DVB-LMA) sponge via Pickering emulsion template method for oil/water separation

Soft Matter ◽  
2021 ◽  
Author(s):  
Caimei Zhao ◽  
Lei Chen ◽  
Chuanming Yu ◽  
Binghua Hu ◽  
Haoxuan Huang ◽  
...  
Keyword(s):  
Oil Spills ◽  
Low Cost ◽  
Pickering Emulsion ◽  
Template Method ◽  
Water Separation ◽  
Environment Friendly ◽  
Oil Water Separation ◽  
Oil Water ◽  
Cost Efficient

Super-hydrophobic porous absorbent is a convenient, low-cost, efficient and environment-friendly material in the treatment of oil spills. In this work, a simple Pickering emulsion template method was employed to fabricate...

A facile fabrication of superhydrophobic and superoleophilic adsorption material 5A zeolite for oil–water separation with potential use in floating oil

Open Physics ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 486-493
Author(s):  
Ting Liang ◽  
Biao Wang ◽  
Zhenzhong Fan ◽  
Qingwang Liu
Keyword(s):  
Separation Efficiency ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
Water Mixture ◽  
Water Separation ◽  
Oil Sorbent ◽  
Analysis Experiment ◽  
5A Zeolite ◽  
Oil Water ◽  
Potential Use

Abstract A facile method for fabricating superhydrophobic and superoleophilic powder with 5A zeolite and stearic acid (SA) is reported in this study. The effect of different contents of SA on contact angle (CA) was investigated. The maximum water CA was 156.2°, corresponding to the optimum SA content of 1.5 wt%. The effects of SA and the mechanism of modified 5A zeolite powder by SA were analyzed by sedimentation analysis experiment, FTIR analysis, particle size analysis, and SEM characterization. The SA-modified 5A zeolite was used as an oil sorbent to separate oil–water mixture with potential use in floating oil. The separation efficiency was above 98%.

Sign in / Sign up

Export Citation Format

Share Document