AIChE | The Global Home of Chemical Engineers

Making Smarter Clean-Tech Investments

October
2010
Management
William J. Grieco, Adam Javan
Appropriate due diligence can help investors sort through the hype and identify the most viable ventures.

Selecting a Heat Exchanger Shell

June
2011
Back To Basics
Thomas G. Lestina, P.E.
The first step in specifying a shell-and-tube heat exchanger is choosing the right shell to meet process requirements.

Basics of Centrifugal Pump Selection

May
2002
Fluids and Solids Handling
Bernadette Pyzdrowski, Drew B. Schiller, Kimberly Fernandez, Michael B. Smith
Tips for specification and operation that provide for cost-effectiveness and reliability.

Outsourcing Environmental Compliance

October
2002
Environmental Management
Stephen W. Blocki
Save money and reduce risks by contracting responsibility for maintaining compliance to a pollution-abatement expert.

Guidelines for Crystallizer Selection and Operation

October
2004
Reactions and Separations
Wayne Genck
Continuous crystallizers serve a wide range of applications in the chemical process industries. Optimize system performance by heeding these practical design and operating principles, which apply to the forced circulation (FC), draft-tube-baffle (...

Prepare Now for REACH Compliance

March
2005
Environmental Management
Beth Sirull
Pending legislation would require companies that make or use chemicals in the European Union to register those substances.

Designing a Facility for API Development

March
2006
Plant Design
Terrence Fay, Yasha Zelmanovich
Kilo labs are instrumental in scaling up the production of active pharmaceutical ingredients. This article discusses the critical factors that must be considered to design such a facility.

Mother Nature as both Doctor and Patient

November
2006
SBE Special Section
Edwin N. Lightfoot
Once we have grasped some essentials of this riotous, but surprisingly well ordered world, we shall find our transport phenomena background to have real utility.

Use Spreadsheets to Estimate Modeling Parameters

February
2008
Computational Methods
Tomas B. Co
Dynamic process modeling based on non-uniformly sampled data and multiple sampling runs, even for nonlinear systems, can be performed using spreadsheet implementations of the weighted-least-squares (WLSQ) and Runge-Kutta WLSQ methods.

Save Energy Through Automation

January
2010
Instrumentation
Douglas C. White
Identifying the right automation investments — those with low costs and high impacts — can result in millions of dollars in energy savings for petrochemical plants. <br>

Institute News

May
2012
Institute News
Read the latest Institute News reported by CEP.

Keeping Global Teams Going

February
2002
Career Catalyst
Lionel F. Laroche
Global teams can maintain their effectiveness by using the right communication tools, following good communication practices, working at building and maintaining trust, and taking cultural differences into account.

Use Sustainability Metrics to Guide Decision-Making

July
2002
Environmental Management
Beth R. Beloff, Earl  Beaver, Jeanette M. Schwarz
Sustainability provides a framework for integrating environmental, social and economic interests into effective business strategies.

Optimize Power Consumption in Aerobic Fermenters

May
2003
Reactions and Separations
Gregory T. Benz
By performing the necessary pilot work, and rigorously calculating the full-scale performance instead of using simple rules-of-thumb, significant energy savings can be achieved in fermenters.

Conduct Successful Team Meetings

November
2003
Career Catalyst
Barry M. Weinstein
Prepare effective agendas, minutes, status updates, and corrective action reports to make your meetings, as well as your projects, run more smoothly.

Getting Your Message Across

May
2004
Career Catalyst
Margaret Clarke Hunt, Denise Price Hosier
Engineers play an important role in the marketing of products, processes and services. Here's a short course on the basics of marketing communications to help you be effective in that role.

Consider Using Fluoropolymers in Biological Applications

December
2004
Materials
Lauri Jenkins, Sharon Libert, Victor Lusvardi
Even with the use of costly corrosion-resistant alloys, metal contamination continues to occur in the biologics industry, thus reducing product yield and activity. Fluoropolymers are emerging as a viable solution to this problem.

Right-Sizing Environmental Controls

June
2006
Environmental Management
E. Joseph Duckett
Size does matter - and bigger is not necessarily better when it comes to pollution control. It is more important to be the right size than the largest size.

Scaling Fixed-Bed Catalyzed Processes

March
2007
Reactions and Separations
Jonathan H. Worstell
The new parameter introduced here will yield more meaningful results when a fixed-bed reactor is scaled up for process development or scaled down for plant support.

Capturing Carbon from Existing Coal-Fired Power Plants

April
2009
Special Section
Jared P. Ciferno, Timothy E. Fout, Andrew P. Jones, James T. Murphy
DOE's National Energy Technology Laboratory is spearheading R&D on a variety of post-combustion and oxy-combustion technologies to cost-effectively achieve 90% CO2 capture.

Ionic Liquid Pretreatment

March
2010
SBE Special Section
Harvey W. Blanch, Bradley M. Holmes, Blake A. Simmons, Seema Singh
Ionic liquids show promise as lignocellulosic biomass solvents. But is this approach a scientific curiosity or a commercially viable biofuel pretreatment technology?

Engineering a Healthy Body

September
2010
Career Catalyst
Nick Hallale
These basic chemical engineering principles expose common weight loss myths and show you how to get into better shape efficiently and sustainably.

Chemical Engineering Perspectives on Vaccine Production

November
2011
SBE Special Section
John G. Aunins, Michael E. Laska, Jose M. Otero, Bret R. Phillips
Fundamental chemical and bioprocess engineering principles and tools will be key to developing and manufacturing vaccines and expanding their availability around the world.

Controlling Emissions During Cold Furnace Startup

February
2007
Environmental Management
Wes Bussman, Jianhui Hong, Charles E. Baukal Jr., Richard T. Waibel
High carbon monoxide emissions from a furnace while its temperature is being ramped up can exceed permit limits if appropriate measures are not taken. Here are a few suggestions.

Propel Your Pneumatic Conveying System to Higher Efficiency

April
2001
Fluids and Solids Handling
Francisco  Cabrejos, Herman  Purutyan, Thomas G. Troxel
For new and existing installations, there are many system and component choices available. Here’s how to narrow down the options to make the appropriate selection for optimal performance.

Give Memorable Presentations

January
2003
Career Catalyst
Robert W. Bly
These guidelines will help you prepare and deliver a more exciting presentation.

Handling Flammable Liquids

July
2003
Fluids and Solids Handling
James C. Mulligan
Identify electrostatic hazards associated with liquid processing and understand the precautions available to control them.

Control Commissioning Costs

August
2004
Management
D. P. Lal
This procedure for commissioning a large chemical complex can help reduce the time required and minimize expenses.

Understanding Management Styles

February
2005
Career Catalyst
Peter E. Friedes
Are you naturally a “relater” or a “requirer”? Understanding how you relate and require will help you make the changes you need to be a more effective manager.

Selecting Agitator Seals for Bioprocessing Applications

January
2008
Fluids and Solids Handling
Gregory T. Benz, William Ho Liam Teng
Issues such as sterility, isolation and contamination must be considered when choosing seals for use in biotech and pharmaceutical processes. This overview describes common types of seals and offers guidance on selecting the appropriate seal for...

Principles of Bioprocess Control

November
2009
SBE Special Section
Joseph S. Alford
The use of complex living organisms, process variation, and lack of real-time measurements of key parameters are some of the challenges involved in automating a bioprocess. This article explains an indirect approach to monitoring and controlling a...

Gazing into an Energy Crystal Ball

June
2010
On The Horizon
Vern W. Weekman Jr.
By mid-century, new energy sources could be integrated into the existing chemical-conversion infrastructure, but additional research is needed to fine-tune the technologies and improve efficiencies and economics.

Use Nitrogen Safely

March
2012
Safety
Dennis Croll, Paul Yanisko
Understanding the potential hazards and taking the proper precautions will allow you to reap such benefits as improved product quality and enhanced process safety.

Bioprinting: Directed Tissue Self-Assembly

December
2007
SBE Special Section
Vladimir Kasyanov, Roger Markwald, Vladimir Mironov
Imagine eliminating patient waiting lists for organ transplants. Bioprinting holds the promise of making this happen, but, must research must be done first.

Effectively Control Column Pressure

January
2001
Reactions and Separations
Andrew W. Sloley 
Maintaining proper pressure can play a crucial role in the stable operation of a distillation column. Here’s how to select the most appropriate pressure-control scheme.

Take Another Look at Steam Traps

June
2001
Fluids and Solids Handling
S. Raghavi  Chari
Think twice before installing a steam trap. In the case of superheated lines, steam traps may prove to be a waste of time, effort, and money

Air Heater Cleaning Simplified

October
2001
Heat Transfer
Brad Buecker
This high-pressure water washing technique can be used to clean Ljungstrom-type air heaters.

Get the Most for Your Emissions Testing Buck

November
2004
Environmental Management
Robert M. Neimeier
A successful emissions testing program involves understanding the purpose of the testing, preparing a request for proposal, eveloping a protocol and entrusting the job with the right person.

Industrial-Scale Flare Testing

May
2006
Environmental Management
Charles Baukal, Mahmoud Fleifil, Jianhui Hong, Robert Schwartz
Advanced flare testing at full scale can help to ensure that the system operates as designed. This article explains what's involved and the parameters that should be measured and evaluated to demonstrate performance, reliability and safety.

Prepare an Effective Intellecutal Property Business Plan

August
2009
Management
Steven R. Hansen
The intellectual property component of a business plan is instrumental in protecting and promoting engineering innovations. Here’s how chemical engineers can provide valuable input into the preparation of an IP business plan.

Evaluating and Documenting Tower Performance

February
2010
Reactions and Separations
Daniel R. Summers
A good performance evaluation can lead to a significant improvement in column performance and establish a basis for future tower evaluations. <br>

Use Oxygen to Improve Combustion and Oxidation

July
2010
Reactions and Separations
Nancy C. Easterbrook, Reed J. Hendershot, Timothy D. Lebrecht
Substituting oxygen for air is often a low-cost, easy-to-implement option that can reduce capital costs, lower emissions, and improve process flexibility and reliability.

Understand the Fundamentals of Wastewater Treatment

October
2011
Back To Basics
Mukesh Doble, Venkatachalam Geetha
Wastewater treatment technologies range from membrane filtration to UV radiation to activated sludge. Compare their advantages and disadvantages to select the appropriate methods for your application.

How Might Biofuels Impact the Chemical Industry?

March
2008
Special Section
William F. Banholzer, Mark E. Jones, Keith J. Watson
Considering the range of possibilities and constraints, a major transformation of the chemical industry's current capital structure is unlikely for at least a few decades.

Realize Greater Benefits from CFD

March
2001
Fluids and Solids Handling
Ahmad H. Haidari, Andre  Bakker,  Lanre M. Oshinowo
Computational fluid dynamics has moved from mainframes to PCs and laptops. Newer and better software lets you conduct analyses not possible before, and regular engineers, not just experts, can now carry out CFD.

Over 40? Make the Most of It!

August
2001
Career Catalyst
Bettina Seidman
Savvy employers are learning to value experienced engineers. Here's how you can take advantage of this trend.

Green Factories for Pharmaceuticals

January
2003
Special Section
Rita D'Aquino
A number of companies are honing techniques to produce a wide variety of pharmaceuticals, such as therapeutic proteins and monoclonal antibodies in plants.

How Sustainable are Your PSM Processes?

June
2003
Safety
R. Bruce Hartman, Martin C. Welch
Use this audit procedure to evaluate the current performance of your process safety management processes as well as their future viability.

Knock, Knock. Who’s There? The EPA Inspector!

July
2004
Environmental Management
Lee D. Hoffman ,  Ronald W. Zdrojeski
Preparation and training can help minimize your facility’s — and your own — vulnerability to criminal prosecution for environmental violations.

Designing a Scrubber to Control Emergency Releases

July
2005
Environmental Management
Jeffrey Michael Forde, Joseph W. Hower., Anne McQueen, Sunil Ojha
Here are guidelines for determining the scope of the control system, sizing the enclosure, and specifying the scrubber design.

Simplify Wastewater Treatment Process Design

January
2006
Environmental Management
Elli Maria Barampouti, Sofia Mai, Apostolos Vlyssides
Unlike time-consuming conventional methods, this approach to designing a dissolved air flotation (DAF) plant requires only the physical characteristics of the flocs — their size and density, flowrate and temperature.

Avoid the Pitfalls of Bioprocess Development

August
2006
Process Development
Mukesh Doble
This article presents the challenges that an engineer might encounter when designing or scaling up bioprocesses and offers practical solutions, including those cited in literature.

Selecting and Using Bolted Head Closures

April
2007
Fluids and Solids Handling
John C. Birkmire, P.E.
Proper design, fabrication, assembly and operation of a pressure vessel closure are essential to ensuring product containment, integrity and quality.

Obtain the Best Physical Property Data

May
2009
Fluids and Solids Handling
Kevin G. Joback
Physical property values are essential for many chemical engineering tasks. This article reviews sources of physical property data, discusses the use of experimental methods to measure properties, and details several types of estimation techniques.

Preparing Invention Disclosures

April
2010
Management
William D. Hall
The patent process can be a costly journey down a long and winding road. An invention disclosure serves as a roadmap for preparing the patent application and ultimately obtaining a valid, enforceable patent.

Integrate Compressor Performance Maps into Process Simulation

June
2011
Computational Methods
Grant Stephenson
Transforming the performance maps to a reduced coordinate system that is independent of suction conditions and rotational speeds allows these curves to be accurately incorporated into a process simulator.

Pages

Subscribe to AIChE | The Global Home of Chemical Engineers