progress of membrane separation technique in oil-bearing

Gas Separation Membranes

This book describes the tremendous progress that has been made in the development of gas separation membranes based both on inorganic and polymeric materials Materials discussed include polymer inclusion membranes (PIMs) metal organic frameworks (MOFs) carbon based materials zeolites as well as other materials and mixed matrix membranes

Sulfonyl PIM‐1: A diverse separation membrane with

A sulfone modified variant (soPIM‐1) of the first polymer of intrinsic microporosity has been studied through molecular simulations to analyze its applicability for adsorption‐based separations of diverse nonpolar quadrupolar and dipolar adsorbate species

The progress of polymeric membrane separation technique in

These techniques however required high energy consumption and with the rising cost of energy membrane separation is a good option as it require relatively low energy requirement Membrane separation technique is an emerging technique which garners the interest from academia and industry from last decade as an alternative method to produce

Oil

Oilbearing wastewater has been paid great attention to and its treatment processes such as physiochemical treatments biochemical treatments chemical treatments are reviewed Most advantages and disadvantages of most of the treatments are summarized and appraised respectively The latest research achievements and some prospects in this field are also presented

Oil/water separation techniques: a review of recent

Oil/water separation is a field of high significance as it has direct practical implications for resolving the problem of industrial oily wastewater and other oil/water pollution Therefore the development of functional materials for efficient treatment of oil-polluted water is imperative In this feature a Recent Review Articles Green Materials and Surfaces

Progress of membrane separation technique in oil

The membrane separation technique and its virtues and the progress of organic membranes inorganic membranes and complex membranes used in oil-bearing water treatment in oil field are briefly described The mechanism of demulsification and the influential factors in the process of oil-bearing water treatment and the reasons causing membrane fouling and the measures used to

Nanoenabled Bioseparations: Current Developments and

The use of nanomaterials in bioseparations has been recently introduced to overcome the drawbacks of the conventional methods Different forms of nanomaterials particularly magnetic nanoparticles (MNPs) carbon nanotubes (CNTs) casted nanoporous membranes and electrospun nanofiber membranes were utilized in biological separation for the aim of production of different biomolecules such as

Technologies for circulating tumor cell separation from

The importance of CTC separation technologies using whole blood samples In recent years several techniques have been used and applied for CTC detection enrichment and counting These techniques are based on different methods and tar-get distinctive physical (size density etc ) or biological (tumor markers) characteristics of extremely rare

AN OPTION FOR SPECIAL SEPARATION OPERATIONS : MEMBRANE

Membrane processes are alternative separation technologies to the conventional separation techniques such as distillation adsorption absorption and extraction The key factor in all membrane processes is the membrane which is used as the separation agent Membranes can be made of polymer glass metal or liquid and can be porous/nonporous symmetric/asymmetric or composite

A Review of Biorefinery Separations for Bioproduct

Novel separation techniques including solvent extraction in biphasic systems and reactive adsorption using zeolite and carbon sorbents membranes and chromatography have been developed In parallel with experimental efforts multiscale simulations have been reported for predicting solvent selection and adsorption separation

Membrane Operations

Membrane processes generally do not require a phase change to make a separation (with the exception of pervaporation) As a result energy requirements will be low unless a great deal of energy needs to be expended to increase the pressure of a feed stream in order to drive the permeating component(s) across the membrane

Electrospun flexible nanofibrous membranes for oil/water

Electrospun nanofibrous membranes featuring tunable wettability good flexibility high porosity and outstanding pore connectivity have received increasing attention In this review we aim to present the design and fabrication of electrospun flexible nanofibrous membranes with special wettability for oil/water separation

The Progress of Polymeric Membrane Separation Technique in

The oxygen air production are generally be achieved by pressure swing adsorption (PSA) and cryogenic distillation Both of the techniques are able to produce high purity oxygen level which is more than 95% with a production volume of 20 – 300 tons per day These techniques however required high energy consumption and with the rising cost of energy membrane separation is a good option as it

Reconstituting SNARE

The reconstitution of intracellular membrane fusion has made dramatic progress over the past 10–15 years After the introduction of successful reconstitutions of intracellular membrane fusion in bulk fusion assays single liposome methods have been developed that have lead to significant new insights into the molecular mechanism of

Ultrathin water

INTRODUCTION Ion separation with energy-efficient and environment-friendly membranes is essential in water environmental fields e g wastewater recycling and seawater and brackish water desalination () Polymers are by far the most widespread membrane materials largely owing to their easy processability and low cost () However traditional polymeric membranes for ion separation from

Recent progress in developments of membrane materials and

Helium is a valuable gas with unique properties and applications and still the prominent industrial source of helium is natural gas Because of several advantages of membrane-based separation processes over conventional methods as well as the lack of a comprehensive scientific report the present study aims to investigate the advances in design and modification of organic and inorganic

Review: Porous Metal Filters and Membranes for Oil–Water

Sep 12 2018The mechanism of oil–water separation by porous metal filter membranes with special wettability is the superwetting behaviour on the contact interfaces of the solid phase water phase and oil phase [] Since there is equilibrium between the oil–water interfacial tension and the permeating power from the intercepted liquid phase this special filter membrane can achieve a selective

Save Energy In Distillation

Mar 27 2018Progress in both membrane and adsorption materials has enhanced the prospects of hybrid separation by which we mean the use of either membranes or an adsorber in tandem with distillation The combination of these unit operations potentially can reduce the separation energy of some energy-intensive separations while still meeting the financial

Basic Principles of Membrane Technology__

The membrane processes are classified in chapter 6 according to the driving force They include: microfiltration ultrafiltration hyperfiltration pressure retarded osmosis piezodialysis gas separation pervaporation liquid membranes dialysis membrane distillation thermo-osmosis and electro-dialysis

Therapeutic Apheresis

Apheresis involves the removal of whole blood from an individual and its separation into components A specified component is retained and the remainder is returned to the individual Therapeutic apheresis is used to treat patients with a variety of disorders and has become a relatively common treatment modality The rationale and techniques for therapeutic apheresis as well as the care of

Review: applications effects and the prospects for

Sep 17 2019Electrospun nanofibrous mats own tremendous advantages and potential in membrane separation process due to their high porosity large pore size and unique interconnected structure However most of membranes reported in the literature were based on phase inversion substrate and there are few researches focused on applying electrospun nanofibrous mats on membrane separation

Techniques for extraction and isolation of natural

Apr 17 2018Natural medicines were the only option for the prevention and treatment of human diseases for thousands of years Natural products are important sources for drug development The amounts of bioactive natural products in natural medicines are always fairly low Today it is very crucial to develop effective and selective methods for the extraction and isolation of those bioactive natural

Frontiers

Frequent oil-leakage accidents and large quantities of oil-bearing wastewater discharge cause severe environmental pollution and huge economic losses Recently superwetting porous materials are successfully utilized to separate oil/water mixture (OWM) based on the different interfacial behavior of water and oil Here we summarize the recent development of efficient oil/water separation (OWS

Electrokinetic Phenomena of Modified

Experimental investigations of electrokinetic phenomena of modified polytetrafluoroethylene membranes in the oily sewage from oil field were performed by using the streaming potential method The zeta potentials of the membranes in the oily waste water are estimated on the basis of Helmholtz—Smoluchowski equation The experiment and calculation results show that the membranes

Progress in carbon dioxide separation and capture: a review

This article reviews the progress made in CO2 separation and capture research and engineering Various technologies such as absorption adsorption and membrane separation are thoroughly discussed New concepts such as chemical-looping combustion and hydrate-based separation are also introduced briefly Future directions are suggested

Membrane Separation Technology on Pharmaceutical

This study demonstrated the feasibility of implementing of MBR in pharmaceutical wastewater independently and concluded different applications of MBR in industries Membrane bioreactor (MBR) technology was a new wastewater treatment technology with a combination of membrane separation technology and biological treatment technology which had unique advantages on pharmaceutical

Analysis of Protein Separation Mechanism in Charged

The separation mechanism of proteins on a charged ultrafiltration membrane was analyzed using the extended Nernst–Planck (N-P) model The model was solved numerically based on experimental data during ultrafiltration of bovine serum albumin/BSA and hemoglobin at various pH (between 5 and 8) to obtain the flux parameter (J v) The flux parameter was used to determine the effective charge of

US20090306354A1

US20090306354A1 US12/512 453 US51245309A US2009306354A1 US 20090306354 A1 US20090306354 A1 US 20090306354A1 US 51245309 A US51245309 A US 51245309A US 2009306354 A1 US2009306354 A1 US 2009306354A1 Authority US United States Prior art keywords egg method egg shell shells membranes Prior art date 2005-01-18 Legal status (The legal status is

Gas Separation Membranes

This book describes the tremendous progress that has been made in the development of gas separation membranes based both on inorganic and polymeric materials Materials discussed include polymer inclusion membranes (PIMs) metal organic frameworks (MOFs) carbon based materials

High

– Membranes with high operating temperatures can be heat integrated to reduce thermal loss within the system – Membranes with high separation factor can reduce system complexity size and operating cost – Membrane reactors can reduce the cost of pressure vessels reduce catalyst volumes and overall capital and operating cost 6