AIChE | The Global Home of Chemical Engineers

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.

Update

March
2012
News Update
Updates in this issue include: State of the Union Address Identifies Importance of Manufacturing and Energy to U.S. Economy Scorpions Inspire Tough Surface Nanorods Line Up for Assembly Nanosphere Structure Boosts Light Absorption Zeolite Catalyst...

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.

Properly Clean Out Your Organic Heat-Transfer Fluid System

May
2001
Heat Transfer
Ander  Beain, Jay  Heidari,  Conrad  Gamble
Follow these guidelines for applying side-stream filtration to on-line cleaning, and chemical or mechanical cleaning to equipment that has been drained of fluid.

Profiting From Your Pumping System

September
2003
Fluids and Solids Handling
Aimee McKane  , Vestal Tutterow,  Don Casada
Identify ways to minimize the lifecycle costs of your pumping system

Sparking Creativity

March
2005
Career Catalyst
James D. Weith
Try some of these strategies to light your creative fires and to fan their flames.

Who Done It? The ABCs of Environmental Forensics

March
2006
Environmental Management
Jeffrey Bolin, Matthew Schroeder, Michael Sklash
These tools and techniques can be used to make sense of soil or groundwater contamination - where it came from, who is responsible for it, and how to fairly allocate the costs to clean it up.

Bioprocess Design for a Novel Vaccine

November
2006
SBE Special Section
Barry C. Buckland
The challenges of vaccine development are not limited to identification of suitable antigens, adjuvants and delivery methods, but include regulatory, technical and manufacturing hurdles in translating a vaccine candidate to the clinic.

Effectively Manage the Lifecycle of a Product

July
2007
Information Technology
Baha Korkmaz, Marty Martin
By incorporating the batch standards S88 and S95 into the entire product lifecycle, companies can optimize their processes and project management. This enables them to rapidly get their products to market — a critical factor in staying competitive.

Eliminate Iteration from Flow Problems

March
2008
Fluids and Solids Handling
John D. Barry
This article introduces a novel approach to solving flow and pipe-sizing problems based on two new dimensionless quantities that are independent of line size and flow.

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>

Understanding Steam Traps

February
2011
Back To Basics
James R. Risko
Steam trap failure can affect process operations and reduce profits. Choosing the right steam traps can improve reliability and reduce cost.

Harnessing Natural Energy

March
2008
Special Section
Travis W. Walker
Before solar and wind energy can be widely exploited, a method for storing the energy provided by these intermittent sources and releasing it as demand arises must be developed.

Keys to Bioreactor Selection

March
2002
Reactions and Separations
John A. Williams
A few basic types of bioreactor designs are used to produce a wide range of products, from antibiotics to foods to fuels. Here's how to pick the best options for your application.

Applying Bus Technologies in Process Control

December
2002
Instrumentation
Ed Smigo
Fieldbus technologies have become increasingly popular in process control applications. This article highlights the practical applications and economics of various buses, so that an engineer can choose the best one for his or her process.

Ensure Proper Design and Operation of Multi-Pass Trays

June
2005
Reactions and Separations
Mark Pilling
To function properly at optimum capacity and efficiency, multi-pass trays must be designed so that the liquid and vapor flows are properly balanced. This article provides guidance on how to achieve that.

Fundamentals of Effective Leadership

June
2006
Career Catalyst
Richard J. Kinsley
To become a leader people want to follow, focus on the team's objectives, avoid self-deception, build strong relationships, and enable others to achieve the team's goals.

Modular Mini-Plants: A New Paradigm

March
2007
Management
Shashank Shah
Modular design principles are well known, but have found only niche applications in the Chemical industry. This article outlines an innovative methodology, whereby plant and process design may be conducted in parallel using components with pre-...

Capturing CO2: Membrane Systems Move Forward

April
2009
Special Section
Suzanne Shelley
Membranes offer inherent advantages over absorption-based CO2 capture from post-combustion fluegas and pre-combustion syngas, but numerous design and scale-up challenges remain.

Converting Cellulose to Biofuels

March
2010
SBE Special Section
David Hogsett, Youngmi Kim, Michael R. Ladisch, Nathan S. Mosier, Eduardo Ximenes
Biochemical and thermochemical process technologies being developed to convert wood and other lignocellulosic feedstocks to liquid fuels will drive the transition from corn-based ethanol to advanced biofuels.

Nitrogen: A Security Blanket for the Chemical Industry

November
2011
Fluids and Solids Handling
Bill Carlson, Joe Dumoit, Paul Yanisko, Shiying Zheng
The benefits of nitrogen blanketing include improved process safety, better product quality, and longer equipment life. Here's how to achieve the desired safety or quality results while minimizing costs.

Profiles of Success

August
2003
Special Section
See how these six high-level women in industry and academia got where they are today and what it's like to be a successful woman in a male-dominated field.

Managing Your Job Search

July
2003
Career Catalyst
Elizabeth Feehan
The key to effective job search is organization. Follow this plan to keep you campaign on track and keep track of your campaign.

Use Periodic Checks to Demonstrate Title V Compliance

February
2004
Environmental Management
Colleen McCarthy, John M. Beath
This hybrid technique of determining whether a plant is meeting its regulatory requirements helps overcome the pitfalls of action-tracking and compliance auditing.

To Engineer or Not? That is the Question

August
2005
Career Catalyst
Edward Yannul
The more important question is “how much to engineer?” Use this technique to evaluate the level of engineering effort required, and justified, for a project.

Cancer's Newest Deadly Foe

February
2006
SBE Special Section
Suzanne A. Shelley
An array of nanoscale developments are poised to revolutionize cancer diagnosis and drug discovery efforts, and create new ways to target the delivery of potent, often toxic drug therapies, while reducing their dose-limiting side effects.

Reduce Business Risk with a CMS

October
2006
Environmental Management
Robert F. Boland
A compliance management system (CMS) helps companies meet regulatory reporting requirements, improve environmental performance, reduce environmental compliance costs, and increase organizational efficiency. Here's a run-down of what to look for when...

Use LinkedIn to Advance Your Career

March
2012
Career Catalyst
Loraine Kasprzak
LinkedIn - the social media tool most often used by professionals - allows you to establish an online presence, connect with others, and find business and job opportunities.

Uncovering the Realities of Simulation, Part 2

June
2001
Computational Methods
Andrew  Vieler, Marco S. Satyro, Rajeev  Agarwal, Yau-Kun Li,  Oscar  Santollani
Simulation software is a commonly used design tool, thanks mainly to its availability on the desktop. However, one has to understand thermodynamic basics before accepting the desktop's final answer.

Optimize Control Room Communications

October
2001
Instrumentation
Brad A. Walker, James E. Lenhart, Karen D. Smith
Faced with more distractions than ever, operators need an environment that is conducive for dealing with abnormal, as well as normal, situations. Effective control room design can help.

Optimize Mixing by Selecting the Proper Baffles

February
2002
Fluids and Solids Handling
Julian B. Fasano, Kevin J. Myers, Mark F. Reeder
It is common knowledge that baffles promote better flow in an agitated vessel, but how to apply them and what kind to use take some ingenuity.

Efficiently Solve Complex Calculations

October
2003
Information Technology
Mordechai Shacham, Neima Brauner ,  Michael B. Cutlip
Reduce the chances of computational errors by following this technique, which combines the use of a standard spreadsheet with a numerical software package.

Recruit for Retention

April
2004
Career Catalyst
Partick Ropella
The most successful employee-retention programs begin with recruiting and hiring the individual who best matches the position and best fits into the company's culture.
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