AIChE

Is Your Cold Lime Softener Effective?

December
2007
Reactions and Separations
Loraine Huchler
If your plant's utility system is experiencing problems, the culprit may be the clarifier. Understanding how to diagnose and correct off-spec clarifier operation will allow downstream units to function more efficiently and reliably.

Green Reactors

August
2008
Reactions and Separations
Mukesh Doble
Compare these microreactor technologies, along with the intrinsic advantages and disadvantages of miniaturization, to achieve process intensification.

Saluting AIChE’s Centenarians

November
2008
Centennial
In honor of AIChE’s 100th birthday, we recognize two members who have each celebrated more than 100 birthdays.

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.

Selecting Entrainers for Azeotropic Distillation

March
2009
Reactions and Separations
Lionel O’Young, Madhura Chiplunkar, Vivek Julka
This systematic methodology uses residue curve maps to identify and evaluate substances that can facilitate distillation by breaking an azeotrope.

Driving Profitability with Swaps and Exchanges

June
2009
Management
Frank Erzinger
Swap and exchange programs can significantly reduce logistics costs, as well as an organization’s carbon footprint. Despite its potential, the technique is often constrained by commercial, technical and operational concerns.

Using Genomic Tools to Improve the Production of Biologics

November
2009
SBE Special Section
Nitya M. Jacob, Wei-Shou Hu, Bernard Liat Wen Loo, and Miranda Yap , Wei shou Hu
Recombinant DNA technology transforms mammalian cells into factories for protein-based therapeutics. New techniques provide chemical engineers with a better understanding of the process as well as the cells themselves.

Communicating the Cost of Product and Process Development

February
2010
Management
John Anderson
Decision-makers often require cost estimates for products and processes at the earliest stages of development — when many cost-determining factors remain uncertain. Identifying variables that impact cost estimates, and putting them in context, will...

Understanding Electromagnetic Flowmeters

May
2010
Instrumentation
Ronald W. DiGiacomo
Consisting of a flow tube, field-generating coils, electrodes, and a transmitter, a magmeter accurately measures the flowrate of conductive fluids over a wide range of conditions.

Choosing Specialty Metals for Corrosion-Sensitive Equipment

July
2010
Back To Basics
Dean Gambale
Specialty metals should be considered for processes that push beyond the corrosion limits of steel. New composites and surface alloy technologies expand the options for defending against corrosion.

Developing Cell Therapy Biomanufacturing Processes

November
2010
SBE Special Section
Jon A. Rowley
Establishing scalable technology platforms that allow for varying levels of production throughout the different stages of clinical testing can minimize process development timelines, drug-comparability risks, and — ultimately — costs.

Apply Six Sigma for Process Improvement and Problem-Solving

March
2011
Back To Basics
George Liebermann
Many manufacturing processes are not run as efficiently as they could be. The Six Sigma methodology provides a foundation for continuous improvement and for solving quality, operational, and other problems.

Developing Screening Cost Estimates

July
2011
Process Development
Richard P. Palluzi, P.E.
Making decisions based on estimates derived from weak data is counterproductive. Use this established methodology to prepare scoping and screening cost estimates for pilot plants quickly and accurately.

Chemical Parks: Industry Landscaping à la Germany

October
2011
Global Outlook
Chemical parks are synergistic environments for the companies located there — thanks to integration of infrastructure and shared resources and distribution networks. In Europe, Germany’s central location and unique geography have contributed to the...

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