Last edited by Tebar
Wednesday, July 29, 2020 | History

4 edition of Origin and recovery of fine drops in batch gas-agitated liquid-liquid systems found in the catalog.

Origin and recovery of fine drops in batch gas-agitated liquid-liquid systems

Habibullah Shahrokhi

Origin and recovery of fine drops in batch gas-agitated liquid-liquid systems

by Habibullah Shahrokhi

  • 24 Want to read
  • 24 Currently reading

Published by National Library of Canada in Ottawa .
Written in


Edition Notes

Thesis (M.A.Sc.)--University of Toronto, 1993.

SeriesCanadian theses = Thèses canadiennes
The Physical Object
FormatMicroform
Pagination2 microfiches : negative.
ID Numbers
Open LibraryOL15114563M
ISBN 100315870516
OCLC/WorldCa46530149

Extraction is the process by which a product is dissolved or separated from a crude starting material. Some of the most common types of laboratory extraction are liquid-liquid extraction, solvent extraction, and solid-liquid extraction. For a more detailed guide on . The extraction of organics from water is fundamental in environmental, pharmaceutical, process, food, forensic, and other laboratories. Nearly all laboratories that perform organic analyses are equipped with a battery of separatory funnel (SF) and/or continuous liquid-liquid extractors (CLLEs) to conduct liquid-liquid extraction. For environmental laboratories that conduct liquid-liquid.

  Mixing of Gas Liquid Systems 1. GBH Enterprises, Ltd. Process Engineering Guide: GBHE-PEG-MIX Mixing of Gas Liquid Systems Information contained in this publication or as otherwise supplied to Users is believed to be accurate and correct at time of going to press, and is given in good faith, but it is for the User to satisfy itself of the suitability of the information for its own. Gas-Liquid And Liquid-Liquid Separators is divided into six parts: Part one and two covers fundamentals such as: physical properties, phase behaviour and calculations. Part three through five is dedicated to topics such as: separator construction, factors affecting separation, vessel operation, and separator operation considerations.

  A flow meter (or flow sensor) is an instrument used to measure linear, nonlinear, mass or volumetric flow rate of a liquid or a gas. When choosing flowmeters, one should consider such intangible factors as familiarity of plant personnel, their experience with calibration and maintenance, spare parts availability, and mean time between failure history, etc., at the particular plant site. Liquid sample recovery system to be installed horizontally at a level that allows natural draining from the analyzer drain and sample conditioning system header into the recovery tank. The system is provided without sun protection. If necessary, additional sun protection can be provided to protect the exd control box from the sun. Design basis.


Share this book
You might also like
programmed text to learn Gujrati

programmed text to learn Gujrati

Weeds in the Garden of Words

Weeds in the Garden of Words

magic of sound.

magic of sound.

The Eastern Front

The Eastern Front

State and society in Brazil

State and society in Brazil

Ashanti; a proud people

Ashanti; a proud people

Tumi Lake Map-Area District of Mackenzie Northwest Territories.

Tumi Lake Map-Area District of Mackenzie Northwest Territories.

Collins Complete Works of William Shakespeare

Collins Complete Works of William Shakespeare

Criminal Procedure Code of Guam and Public Law 13-187

Criminal Procedure Code of Guam and Public Law 13-187

Salesnet

Salesnet

Russia after Stalin.

Russia after Stalin.

Mounds and other ancient earthworks of the United States

Mounds and other ancient earthworks of the United States

Origin and recovery of fine drops in batch gas-agitated liquid-liquid systems by Habibullah Shahrokhi Download PDF EPUB FB2

The roles played by large gas bubbles in the generation and coalescence of liquid drops at a liquid‐liquid interface are elucidated. The amount of lower liquid entrained by individual bubbles and the resulting drop size distributions in the upper liquid phase are quantified for the three phase system: sunflower oil + 50 wt % decane, water + 50 wt % sugar, air, and qualitative theoretical Cited by: 6.

H. Shahrokhi, J.M. ShawThe origin of fine drop recovery in batch gas agitated liquid–liquid systems Chemical Engineering Science, 49 (24B) (), pp. Google ScholarCited by: 6. Gas‐agitated liquid‐liquid dispersions arise in applications as diverse as direct hydrogenation processes for bitumen and coal, and the manufacture of iron and steel.

The transfer of gas‐phase constitutents to the dispersed liquid phase and/or elution of dispersed‐phase drops have been identified as potential limiting phenomena in these Cited by: The hydrodynamics of fine dense liquid drop recovery from batch gas-agitated liquid–liquid dispersions has received comparatively little attention in the open literature even though such systems.

Fine drops pose a separation problem in batch gas-agitated liquid—liquid systems, such as pyrometallurgical and liquid—liquid extraction processes bec Cited by: 3. The hydrodynamics of batch gas-agitated liquid-liquid dispersions has received comparatively little attention in the open literature Such systems arise in diverse contexts but operate on the.

extraction column are the slip velocity, dispersed phase holdup, gas phase holdup, drop size distribution, and axial dispersion in the continuous phase. In the following text we will discuss the effects of these characteristics on the operation of non-mechanically gas-agitated liquid-liquid extraction columns.

It was shown that the backmixing is reduced when the spray column is operated with dense packing of drops. Another way of increasing the efficiency of a non-agitated extraction column is to introduce an inert gas (air, nitrogen, oxygen) as a mixing agent in the two-phase liquid-liquid (L-L) system.

Shahrokhi, Habibullah, "The Origin and Fate of Fine Drops in Batch Gas-Agitated Liquid-Liquid Dispersions", MASc University of Toronto. Dukhedin-Lalla, Leisl, "Phase Splitting and Synergy in Complex Hydrocarbon Systems",MSc University of Toronto.

Liquid/Liquid Extraction General description of the process Whereas distillation takes advantage of different volatilities means different distributions of a product in the liquid and the gas phase the liquid/liquid extraction is based on different solubilities means different distributions of a product in 2 co-existing liquid phases.

The Origin of Fine Drops in Batch Gas-Agitated Liquid-Liquid Systems. Chemical Engineering Science49(24), Abedi, S. J.; Dukhedin-Lalla, L.; Shaw, J. Impact of Impregnated Catalysts on Coal Particle Disintegration at Elevated Temperatures and Pressures. A bioreactor refers to any manufactured device or system that supports a biologically active environment.

In one case, a bioreactor is a vessel in which a chemical process is carried out which involves organisms or biochemically active substances derived from such organisms. This process can either be aerobic or bioreactors are commonly cylindrical, ranging in size from litres.

Spray columns: Liquid is dispersed in the form of fine spray into an empty column with gas upflow. The system is suitable for highly soluble gases, can also handle gas streams containing suspended impurities. Ultra low pressure drop for the gas phase.

Some limitations are. Abstract: Continuous gravity settlers are widely used for liquid–liquid separations in solvent extraction processes. In the present work, the effects of settler design [geometry, settling area (A), locations of inlet and outlet] and internals (baffles, picket fence.

Liquid-liquid extraction methods, however, are needed when factors such as low volatility, heat sensitive materials, high operating costs/investments, complex process sequences are involved.

Next, it is important to consider the solvent recovery aspects early in the project since they can affect the overall process economics. If the aqueous feed contains liquid-liquid extraction is usually a more economical solution than distillation for removal and recovery of acetic acid because the operating costs associated with distilling away the water far outweigh the capital costs of the liquid-liquid.

Liquid-liquid (or solvent) extraction is a countercurrent separation process for isolating the constituents of a liquid mixture. In its simplest form, this involves the extraction of a solute from a binary solution by bringing it into contact with a second immiscible solvent in which the solute is soluble.

N2 - Gas-liquid-liquid reaction systems may be encountered in several important fields of application as e.g. hydroformylation, alkylation, carboxylation, polymerisation, hydrometallurgy, biochemical processes and fine chemicals manufacturing.

However, the reaction engineering aspects of these systems have only been considered occasionally. Samir Diab, Nikolaos Mytis, Andreas vis, and Dimitrios orgis, Process Modelling, Design and Technoeconomic Liquid-Liquid Extraction (LLE) Optimisation for Comparative Evaluation of Batch vs.

Continuous Pharmaceutical Manufacturing of. liquid–liquid separation Batch settling cell Sedimentation Enhanced force field Coalescence Dispersion number several researches focused on the drop formation and drop motion To observe the separation of disperse liquid–liquid systems in centrifugal force field a new laboratory equipment is required.

Thus, and for a high level of. Many of the procedures were developed for batch-mode operations; some have been adopted for autobatch operations, while a number of continuous-mode procedures exist. Table 6 shows the wide variety of elements for which liquid-liquid extraction procedures are available.

Separation times vary from 2 s to several minutes, depending on the.General description of the process Solid/Liquid extraction process is a very common process in the pharmaceutical, cosmetic and food industry to obtain natural ingredients as e.g.

flavors and fragrances from natural raw material. The extraction can be carried out with cold or hot solvents.Introduction to Liquid-Liquid Extraction. Liquid-liquid extraction (also known as solvent extraction) involves the separation of the constituents (solutes) of a liquid solution by contact with another insoluble liquid.

Solutes are separated based on their different solubilities in different tion is achieved when the substances constituting the original solution is transferred.