Separations

Ionic Liquids: From Fundamental Researches to Industrial Applications

Nov 8, 2010

Suojiang Zhang

Ionic liquids (ILs) are a new class of substances exclusively composed of cations and anions, and they have shown unique physico-chemical properties differing from aqueous ionic solutions and high temperature molten salts. Although many attentions have been paid on ILs, the knowledge of ILs is...

Transesterification of Activated Sludge Oil by Ionic Liquid Supported Acid Catalysis

Nov 7, 2010

Patrisha J. Pham

Progress in the transesterification of vegetable oils has been achieved using ionic liquids. Ionic liquids have been found to provide an ideal medium for increasing the biodiesel yield, stabilizing the inorganic acid and removing the glycerol by-product. In this present study, transesterification...

Characterization of Thin Film Composite (TFC) and Dense Membranes Based On Disulfonated Random Poly (arylene ether sulfone) Copolymers for Water Purification

Nov 7, 2010

Ozma Lane

Thin film composite and dense membranes were produced by casting a blend of BPS-20 (20% disulfonated poly(arylene ether sulfone)) or BPS-32 (32% disulfonated poly(arylene ether sulfone)) and varying molecular weights of poly(ethylene glycol) oligomer onto porous Udel polysulfone foam. An additional...

Design and Control of Distillation Systems for Separating Azeotropes

March, 2010

Hands-on guidance for the design, control, and operation of azeotropic distillation systems Following this book's step-by-step guidance, readers learn to master tested and proven methods to overcome a major problem in chemical processing: the distillation and separation of azeotropes. Practical in...

Solubility Diffusivity and Swelling of Methanol in Short Side Chain Ionomeric Perfluorinated Polymers

Nov 11, 2009

Giulio Sarti

The sorption, diffusion and swelling properties of methanol vapor in a short-side-chain perfluorosulfonic acid ionomer (PFSI) membrane of equivalent weight 860 gpol/(mol(SO3H) were investigated at different activities and at temperatures between 35 and 65°C. The solubility isotherms can be well...

Adsorption of CO2-Containing Gas Mixtures Over Amine-Bearing Pore-Expanded MCM-41 Silica: Application to CO2 Separation and Purification

Nov 10, 2009

Youssef Belmabkhout

Adsorption technology such as pressure swing or temperature swing adsorption is widely used for purification and separation of gases (Ruthven et al., 1994). Adsorption is considered to be a competitive method for CO2 removal in comparison to other technologies, provided that highly selective...

Affinity Purification of Human Immunoglobulins A, G, and M by Hexamer Peptide Ligand

Nov 10, 2009

Zhou Liu

Antibody-based therapeutics account for a third of all new treatments in USA and the size of the therapeutic antibody market is projected to reach over 30 billion per year by 2010. Although most of antibodies in the market and in the clinical development are immunoglobulin-G-based drugs, more and...

A Validated Mathematical Model for the Simulation of Affinity Membrane Chromatography Process

Nov 10, 2009

Giulio Sarti

Membrane affinity chromatography is seriously considered as a possible alternative to bead based chromatography. Membrane chromatography is not limited by diffusion as the majority of chromatographic resins and therefore it is particularly suited for purifying large bio-molecules such as high...

Purification of Recombinant Plant-Made Proteins From Corn by Ultrafiltration

Nov 10, 2009

Matthew Aspelund

The use of corn as an expression host is an attractive system for the production of plant-made proteins. The use of plants lowers upstream costs making downstream the significant production cost. For some proteins, crossflow ultrafiltration could be a lower cost alternative. The potential for doing...

Gram-Scale Isolation of IEC Charge Variants Using Displacement Chromotography

Nov 10, 2009

Ryan Hutchinson

The pharmacokinetic profiles of monoclonal antibody charge variants are poorly understood because they differ only slightly from the “main” antibody species, are low in abundance, and extremely difficult to isolate in pure pools for intensive in vitro and in vivo studies. Because of this, the...

Assessing the Viability of Solid Sorbents for CO2 Capture From Coal-Fired Power Plants

Nov 10, 2009

Holly Krutka

Carbon capture and sequestration (CCS) can be an important component of reducing worldwide CO2 emissions from stationary point sources, such as coal-fired power plants. Aqueous amines and ammonia are being demonstrated for CO2 capture in a temperature swing cyclic process. Solid sorbents can also...

A Microfluidic Obstacle Course for Arraying and Detection of Microbeads, Lipobeads and Liposomes

Nov 10, 2009

Shahab Shojaei-Zadeh

Bead based microarrays are promising platforms for implementing the high throughput, multiplexed assaying of the binding interactions of biomolecules (for example the binding of antigens and antibodies, or the conjugation of membrane receptors with small molecule ligands). In these arrays, each...

Ionic Liquids

AIChE Webinar

Aug 26, 2009

Joan Brennecke

This webinar will cover the use of Ionic Liquids for both liquid and gas separations, emphasizing how the choice of anion, cation and functional groups can be used to tailor Ionic Liquids for specific separations.

The Ubiquitous Hydrocyclone Separator: Theory and Practice

AIChE Webinar

Feb 10, 2009

Charles Petty

The hydrocyclone separator, which was invented in 1891 (see E. Bretney, “Water Purifier”, U.S. Patent 453,105) is widely used in process engineering as a classifier, a clarifier, or a thickener.

Reactive Distillation Design and Control

October, 2008

After an overview of the fundamentals, limitations, and scope of reactive distillation, this book uses rigorous models for steady-state design and dynamic analysis of different types of reactive distillation columns and quantitatively compares the economics of reactive distillation columns with...

Advanced Membrane Technology and Applications

September, 2008

Advanced membranes-from fundamentals and membrane chemistry to manufacturing and applications A hands-on reference for practicing professionals, Advanced Membrane Technology and Applications covers the fundamental principles and theories of separation and purification by membranes, the important...

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