SS: High Pressure Gas-Liquid Separation: CO2 Droplets: One-Component Two-Phase System as Model Fluid for High-Pressure Hydrocarbon

2010 ◽  
Author(s):  
Pablo Matas Dupuy ◽  
Maria Fernandino ◽  
Hallvard Svendsen ◽  
Remko Westra
Keyword(s):  
High Pressure ◽  
Phase System ◽  
Liquid Separation ◽  
Two Phase ◽  
Model Fluid

CO2: One-Component Two-Phase System as Model Fluid for High-Pressure Hydrocarbon Systems

SPE Journal ◽  
2010 ◽  
Vol 16 (02) ◽  
pp. 482-488 ◽  
Author(s):  
P.M.. M. Dupuy ◽  
M.. Fernandino ◽  
H.F.. F. Svendsen ◽  
R.. Westra
Keyword(s):  
High Pressure ◽  
High Pressures ◽  
Saturation Pressure ◽  
Density Ratio ◽  
Flow Property ◽  
Basic Knowledge ◽  
Phase System ◽  
Present System ◽  
Two Phase ◽  
Model Fluid

Summary In the process of performing either scientific experiments or research and development related to the design and optimization of high-pressure liquid-from-gas separator units, both laboratory experiments and tests in prototypes are needed. In order to emulate the low interfacial tensions often experienced in high-pressure hydrocarbon systems, the use of carbon dioxide (CO2) as model fluid is studied. This paper describes how the CO2 system behaves at saturation conditions. It describes this system and compares it with traditional laboratory systems and real fluids (from the field). CO2 at saturation pressure under normal temperatures presents an interesting system with low interfacial tension, below 3 mN/m, while the liquid/gas-density ratio is approximately 3. The availability of the fluid (CO2) in research centers and academia is high. When planning a matrix of experiments as part of a database of reproducible laboratory fluids, the present system is an independent base vector ideal for studying the high-Weber/low-Reynolds-number regime. This paper shows how a dispersed CO2-droplet phase, representative of a hydrocarbon-gas/condensate system, can be achieved in the laboratory and used for studying collision outcomes. Results show that it is possible to obtain streams of droplets for droplet experiments. The mean diameter in the studied regime with the particular nozzle used was on the order of 100 µm, while the smallest droplets possible to track with the presented technique were approximately 40 µm. Droplet/wall-collision experiments were focused in this work. Both coalescence and bouncing were observed on both dry and wet walls. The absence of real fluid experiments at laboratory conditions generates a lack of basic knowledge about what is happening in real scrubbers. This system is proposed to be representative for a part of the flow-property region of interest in real gas/liquid scrubbers. This basic knowledge is fundamental when designing separation units at high pressures for gas-processing stages such as subsea gas-separation concepts.

scholarly journals Kinetic Study of 5-Hydroxymethylfurfural Synthesis from Fructose in High Pressure CO2–Water Two-Phase System

2018 ◽  
Vol 58 (1) ◽  
pp. 92-100 ◽  
Author(s):  
Hélène Labauze ◽  
Séverine Camy ◽  
Pascal Floquet ◽  
Bouchra Benjelloun-Mlayah ◽  
Jean-Stéphane Condoret
Keyword(s):  
High Pressure ◽  
Kinetic Study ◽  
Phase System ◽  
Two Phase ◽  
High Pressure Co2

scholarly journals High-pressure neutron study of the morphotropic lead-zirconate-titanate: Phase transitions in a two-phase system

2012 ◽  
Vol 112 (1) ◽  
pp. 014104 ◽  
Author(s):  
J. Frantti ◽  
Y. Fujioka ◽  
J. Zhang ◽  
S. Wang ◽  
S. C. Vogel ◽  
...  
Keyword(s):  
High Pressure ◽  
Phase Transitions ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Phase System ◽  
Two Phase ◽  
Zirconate Titanate

On the Problem of “Two-Phase” Activated Sludge

1991 ◽  
Vol 24 (7) ◽  
pp. 59-64 ◽  
Author(s):  
R. W. Szetela
Keyword(s):  
Activated Sludge ◽  
Single Phase ◽  
Phase System ◽  
Two Phase ◽  
Wastewater Treatment Process ◽  
Sludge Stabilization ◽  
Technological Advantage ◽  
In Series ◽  
State Models ◽  
Activated Sludge Systems

Steady-state models are presented to describe the wastewater treatment process in two activated sludge systems. One of these makes use of a single complete-mix reactor; the other one involves two complete-mix reactors arranged in series. The in-series system is equivalent to what is known as the “two-phase” activated sludge, a concept which is now being launched throughout Poland in conjunction with the PROMLECZ technology under implementation. Analysis of the mathematical models has revealed the following: (1) treatment efficiency, excess sludge production, energy consumption, and the degree of sludge stabilization are identical in the two systems; (2) there exists a technological equivalence of “two-phase” sludge with “single-phase” sludge; (3) the “two-phase” system has no technological advantage over the “single-phase” system.

Features of spatial shock-wave flows in vapor-gas-liquid mixtures

2014 ◽  
Vol 10 ◽  
pp. 27-31
Author(s):  
R.Kh. Bolotnova ◽  
U.O. Agisheva ◽  
V.A. Buzina
Keyword(s):  
Shock Wave ◽  
High Pressure ◽  
Shock Waves ◽  
Liquid Mixture ◽  
Liquid Mixtures ◽  
Pressure Vessels ◽  
Water Mixture ◽  
Two Dimensional ◽  
Nonstationary Processes ◽  
Two Phase

The two-phase model of vapor-gas-liquid medium in axisymmetric two-dimensional formulation, taking into account vaporization is constructed. The nonstationary processes of boiling vapor-water mixture outflow from high-pressure vessels as a result of depressurization are studied. The problems of shock waves action on filled by gas-liquid mixture volumes are solved.

Interphase distribution of 2-furylethylenes

1985 ◽  
Vol 50 (8) ◽  
pp. 1642-1647 ◽  
Author(s):  
Štefan Baláž ◽  
Anton Kuchár ◽  
Ernest Šturdík ◽  
Michal Rosenberg ◽  
Ladislav Štibrányi ◽  
...  
Keyword(s):  
Partition Coefficient ◽  
Partition Coefficients ◽  
Transport Rate ◽  
Phase System ◽  
Two Phase ◽  
Interphase Distribution ◽  
Distribution Kinetics ◽  
System 1 ◽  
Kinetics Of

The distribution kinetics of 35 2-furylethylene derivatives in two-phase system 1-octanol-water was investigated. The transport rate parameters in direction water-1-octanol (l1) and backwards (l2) are partition coefficient P = l1/l2 dependent according to equations l1 = logP - log(βP + 1) + const., l2 = -log(βP + 1) + const., const. = -5.600, β = 0.261. Importance of this finding for assesment of distribution of compounds under investigation in biosystems and also the suitability of the presented method for determination of partition coefficients are discussed.

Enhancing the Sensitivity of DNA and Aptamer Probes in the Dextran/PEG Aqueous Two-Phase System

2021 ◽  
Author(s):  
Qiaoshu Chen ◽  
Yanwen Zhang ◽  
Hui Chen ◽  
Jianbo Liu ◽  
Juewen Liu
Keyword(s):  
Phase System ◽  
Two Phase ◽  
Aqueous Two Phase System
Sign in / Sign up

Export Citation Format

Share Document