Chemical Engineering Practice

Process Intensification: Has Its Time Finally Come?

October
2003
On The Horizon
Costas Tsouris, Joseph V. Porcelli
Many new technologies are being developed, but several important barriers must be overcome before process intensification is widely adopted.

Selecting a Membrane Filtration System

December
2004
Fluids and Solids Handling
Frank Parma , Wu Chen
Proper design and scaleup of a membrane filtration system requires an understanding of the availability of membrane material, pore size and module configurations. These practical guidelines will help in the selection process.

A Strategy for Excellence in Process Development

October
2008
Process Development
Lionel O'Young, Vaibhav V. Kelkar
Here is how to integrate overall process development activities and identify practices that facilitate commercial process development.

Simplify Experimental Design

January
2010
Computational Methods
Joseph F. Louvar
Save time and money by using this approach to fractional-factorial design of experiments (DOE) for studies involving six or seven variables. <br>

Implementing an IACS Patch-Management Program

May
2011
Information Technology
Kevin Staggs
Maintain state of the art industrial automation and control systems (IACS) by using these steps to support an effective patch management program and implement it with minimum risk.

Working with Non-Ideal Gases

March
2003
Fluids and Solids Handling
Jimmy Peress
Here are two proven methods for predicting gas compressibility factors.

Apply Solubility Theory for Process Improvements

March
2004
Reactions and Separations
Michael J. Gentilcore
For solid compounds that dissolve in solvents but do not ionize, the thermodynamics of solubility can provide valuable predictions and insights.

Improve and Maintain Cooling Tower Efficiency

April
2005
Heat Transfer
James L. Willa
Changing maintenance and/or operating procedures can significantly increase cooling tower performance without major capital expenditures. Here are some tips for ensuring proper design and operation of major tower components.

Increase Powder Flow via Gas Injection

July
2006
Fluids and Solids Handling
Herman Purutyan, John W. Carson, Thomas G. Troxel
Fluidization and air-assisted discharge are two ways to optimize fine-solids handling. However, the choice of technology is as important as designing and operating the system properly.

Use Model-Predictive Control to Improve Distillation Operations

January
2008
Instrumentation
Daniel R. Webb, Robert D. Rounding, Robert J. Conroy, Umesh Mathur
This methodology, based on steady-state and dynamic simulation, can be used to develop the necessary models— and avoid disruptive and costly step testing to the extent feasible.

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.

Choose the Right Electric Motors for Hazardous Locations

November
2011
Back To Basics
Uriah Van Amerom
Risks associated with operating an electric motor in hazardous areas range from production downtime to injury and death. Learn how to assess the operating environment and select the appropriate motor.

Accurately Predict the VLE of Thiol-Hydrocarbon Mixtures

September
2004
Reactions and Separations
Chorng H. Twu, Vince Tassone, Wayne Sim
This methodology can be used to calculate vapor-liquid equilibria (VLE) between thiols and hydrocarbons at any composition, temperature or pressure to improve gasoline fractionation processes.

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