scholarly journals Rheological and Emulsification Behavior of Xinjiang Heavy Oil and Model Oils

2016 ◽  
Vol 9 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Jiaqiang Jing ◽  
Jiatong Tan ◽  
Haili Hu ◽  
Jie Sun ◽  
Peiyu Jing
Keyword(s):  
Pressure Gradient ◽  
Crude Oil ◽  
Mineral Oil ◽  
Crude Oils ◽  
Water Separation ◽  
Oil Emulsion ◽  
Silicon Oil ◽  
Oil Water ◽  
Model Oil ◽  
White Mineral

Transparent model oils are commonly used to study the flow patterns and pressure gradient of crude oil-water flow in gathering pipes. However, there are many differences between the model oil and crude oils. The existing literatures focus on the flow pattern transition and pressure gradient calculation of model oils. This paper compares two most commonly used model oils (white mineral oil and silicon oil) with Xinjiang crude oil from the perspectives of rheological properties, oil-water interfacial tensions, emulsion photomicrographs and demulsification process. It indicates that both the white mineral oil and the crude oils are pseudo plastic fluids, while silicon oil is Newtonian fluid. The viscosity-temperature relationship of white mineral oil is similar to that of the diluted crude oil, while the silicon oil presents a less viscosity gradient with the increasing temperature. The oil-water interfacial tension can be used to evaluate the oil dispersing ability in the water phase, but not to evaluate the emulsion stability. According to the Turbiscan lab and the stability test, the model oil emulsion is less stable than that of crude oil, and easier to present water separation.

Self-cleaning poly(L-dopa)-based coatings with exceptional underwater oil repellency for crude oil/water separation

2020 ◽  
Vol 510 ◽  
pp. 145402 ◽  
Author(s):  
Hao Zhang ◽  
Li Yu ◽  
Xiaohong Ma ◽  
Yapei Peng ◽  
Junqing Hu ◽  
...  
Keyword(s):  
Crude Oil ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Self Cleaning

Preparation of Membrane Zeolite MCM-22 and Evaluation Process Oil/Water Separation

2015 ◽  
Vol 820 ◽  
pp. 605-608
Author(s):  
A. Santos Barbosa ◽  
A.S. Barbosa ◽  
M.G.F. Rodrigues
Keyword(s):  
Continuous Flow ◽  
Membrane Separation ◽  
Secondary Growth ◽  
Evaluation Process ◽  
Zeolite Membrane ◽  
Water Separation ◽  
Oil Emulsion ◽  
X Ray ◽  
Growth Method ◽  
Oil Water

The objective of this work was prepared by secondary growth method, and evaluate the ability of the MCM-22 zeolite membrane separation system in oil / water in a continuous flow system. The zeolite membrane MCM-22 was characterized by different techniques: X-Ray Spectrometry Energy Dispersive (EDX), X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). A continuous flow was used. The test for measuring mass flow of water / oil emulsion was conducted in peristaltic pump, wherein the membrane zeolite MCM-22 was tested. Through the results, we can observe the efficiency of the method used in the preparation of zeolite membrane and was also observed that the zeolite MCM-22 membrane, obtained by secondary growth method showed removal percentages equivalent to the standards required by Resolution 392 CONAMA.

Effects of the Dispersed Phase on Oil/Water Wax Deposition

2013 ◽  
Vol 135 (4) ◽  
Author(s):  
Pengyu Wang ◽  
Wei Wang ◽  
Jing Gong ◽  
Yuanxin Zhou ◽  
Wei Yang
Keyword(s):  
Particle Size ◽  
Crude Oil ◽  
Dispersed Phase ◽  
Wax Deposition ◽  
Waxy Crude Oil ◽  
Water Emulsion ◽  
Oil Emulsion ◽  
Wax Content ◽  
Oil Water ◽  
Water Cut

In the study of the foundation of the oil / water wax deposition experiment, the emulsification characteristics of crude oil emulsion with high wax content have gradually become the hot research area. In the current research of emulsification characteristics of oil/water emulsion, the attention has been focused on the study of the effects of water cut, stirring speed, particle size distribution on the viscosity of waxy crude oil emulsion in the experiment, in which heavy oil and simulated oil are adopted as the working fluids. In this study, the emulsion with different water cut and stirred by different speed was prepared under three different temperature conditions, the temperature above the wax appearance temperature (WAT), near the WAT, and below the WAT. The polarization microscope and rotary viscometer were applied to measure the effects of the particle size of the dispersed phase and waxy crystal distribution on the oil/water emulsion viscosity. The results suggest that preparing the temperature for crude oil emulsion with high wax content has an important influence on the emulsion microstructure. This study lays the foundation for further study of oil/water two phase dynamic wax deposition experiments.

scholarly journals WEATHERING EXPERIMENT ON SPILLED CRUDE OILS USING A CIRCULATING WATER CHANNEL

1995 ◽  
Vol 1995 (1) ◽  
pp. 435-422 ◽  
Author(s):  
Tsutomu Tsukihara
Keyword(s):  
Crude Oil ◽  
Water Content ◽  
Sea Water ◽  
Water Channel ◽  
Crude Oils ◽  
Oil Emulsion ◽  
Circulating Water ◽  
Water In Oil Emulsion

ABSTRACT Crude oil spilled in the sea is mixed with the sea water by the wind and waves resulting in increases in its water content and viscosity as time passes. We have constructed a small, transfer type circulating water channel of an elliptical cuit-track form. Using an attached circulating unit, together with a war tunnel, artificial waves are generated to enable simulation corresponding to the natural circumstances in the sea. The experiment disclosed the following results.Drastic changes in the properties (water content and viscosity) of the oil depend on the power of waves.Contrasting processes are observed between heavy and light crude oils during weathering.Heavy crude oils form a massive water-in-oil emulsion (mousse) with increases in both water content and viscosity.Light crude oils behave differently at summer sea temperatures,

scholarly journals Optimization of (RP6000 and MAKS-9150) demulsifiers for separation of water from (Kirkuk / baba, Khbbaz) crude oil emulsion

2020 ◽  
Vol 10 (4) ◽  
pp. 69-84
Author(s):  
Dr. Mueyyed Akram Arslan ◽  
Dr. Ghassan Burhan Yaqoob
Keyword(s):  
Crude Oil ◽  
Emulsion Stability ◽  
Ph Effect ◽  
Test Method ◽  
Water Separation ◽  
Oil Emulsion ◽  
Bottle Test ◽  
Oil Emulsions

In this study oil-soluble (RP6000 and MAKS-9150) emulsion breakers have been selected for separation of water from Kirkuk / baba (50oC), Khbbaz (40oC) crude oil emulsions and their activity measured using the Bottle test method at different concentration and found the activity of RP6000 demulsified best than MAKS-9150 emulsion breakers. RP6000 separated water (100%) in (15)min., (40)ppm and in (60)min., (20)ppm of demulsified for Kirkuk/ baba Crude oil and for khbbaz Crude oil the (100%) water separation was in (15)min., (80)ppm and in (30)min., (60)ppm and PH effect, salinity, temperature and density of emulsion stability depending on literature were explained for Optimization.

scholarly journals Preparation and Application in Crude Oil-Water Separation of Clay-Based Membranes

2021 ◽  
Vol 24 (4) ◽  
Author(s):  
Mykaell Yan Muniz de Souza ◽  
Hélio de Lucena Lira ◽  
Lisiane Navarro de Lima Santana ◽  
Miguel Angel Rodríguez
Keyword(s):  
Crude Oil ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water

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.

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