Search form

Separations

Improving Reverse Osmosis Performance

September
2010
Reactions and Separations
Loraine Huchler
Follow these guidelines for monitoring, evaluating, and troubleshooting RO units to ensure reliable and efficient system operation.

Oxygen and Nitrogen: Onward and Upward

January
2009
News Feature
Suzanne Shelley
Innovative advances continue to benefit all three of today's air separation technologies, helping to reduce power consumption and capital costs, and, in turn, expand their markets.

Using Chromatography to Separate Complex Mixtures

December
2010
Back To Basics
Nathalie Fraud
Purifying high-value mixtures, such as pharmaceuticals, can be an expensive undertaking. Choosing the correct chromatography methods can improve purity and reduce processing time and cost.

Converting a Commercial Distillation Column into a Research Tower

July
2005
Reactions and Separations
Ralph Weiland
Operating a column under actual distillation conditions is important for obtaining commercially valid hydraulic data. This article describes how a column was modified to operate in either a production or a research mode to collect hydraulic and mass...

Choosing Trays and Packings for Distillation

September
2009
Back To Basics
Bruce S. Holden , Mark Pilling
Tower-related problems can be difficult, time-consuming, and expensive to diagnose and fix. Here’s how to avoid difficulties and improve operating efficiency.

Preparation and Testing of Adsorbents for the Separation of Ionic Liquids From HMF

Oct 18, 2011
Yuxiang Rao
HMF is an important chemical product since it has the potential to be used as a feedstock to replace petroleum-derived aromatics for production of a range of specialty chemicals and plastics.In this work, we will demonstrate an economically-viable, ionic liquid catalytic process for conversion of...

Novel Zeolite Membranes for Energy-Efficient Air Dehumidification and Conditioning

Oct 17, 2011
Rong Xing
Traditional vapor compression air conditioners have very high power consumption for cooling of hot and humid air due to condensation of a large amount of water inside the cooler. We have developed a novel zeolite membrane supported on a thin (~50 micrometer thick) porous metal sheet to remove water...

Ionic Liquids: A Potential Role In the Sulfur Family of Thermochemical Cycles

Oct 16, 2011
Nick AuYeung
The Sulfur-family of thermochemical water splitting cycles has already been identified as an ideal application of ionic liquid solvents for SO 2 absorption. 1 Here, ionic liquids are proposed as suitable reaction media in both the Sulfur-Sulfur cycle (a new cycle based upon the Sulfur-Iodine Cycle...

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...

Pages

Subscribe to Separations