AIChE | The Global Home of Chemical Engineers
Cynthia F. Mascone
They might be more expensive, but there’s probably no need to cancel your party plans just yet. “There’s lots of helium out there” says John Van Sloun, general manager — worldwide helium at Air Products, “but very little of it is being captured because the economics of doing so are not favorable.”
Dennis C. Hendershot
Merging the design processes of inherent safety and operational reliability reduces the total technial resources, while improving both parameters.
Seven years ago, I wrote a column for another publica tion entitled “The U.S. Chemical Industry: R.I.P.” This pillar of American economic strength, which a few years earlier was the leading exporter among U.S. manufacturing sectors (with net exports of $15–20 billion annually), was shriveling due in large part to policy blunders and regulatory mistakes.
This Beacon is not focused on a single incident, but on incidents that continue to occur across industry — nitrogen asphyxiation.
Daniel A. Crowl
Flammable materials can cause fires and explosions if they are not handled properly. Understanding these materials and the risks they pose is the first step to mitigating fire hazards.
Actuators automate valves by converting an input signal into motion. This article explains the basics of electric actuator design and explores the different types of electric actuators.
For Almajnouni, Process Domain Manager at Saudi Basic Industries Corp. (SABIC) and long-time chair of AIChE’s Saudi Arabia Local Section, progress is a byword in a life shaped by the will to embrace change.
A short, simple and concise message can be an effective way to let others know about your accomplishments and your worth.
Victor H. Edwards
A more practical approach to safe atmospheric venting may be using a shorter stack and injecting steam into the vented vapors.
This book concentrates on the topic of physical and chemical equilibrium. Using the simplest mathematics along with numerous numerical examples it accurately and rigorously covers physical and chemical equilibrium in depth and detail. It continues to cover the topics found in the first edition...
An understanding of the basic approach to creating vaccines, as well as how vaccines confer immunity, is essential to developing safe and cost-effective formulations.
James R. Katzer
Despite its image as a dirty fuel, coal remains an economic choice for baseload power generation—and it can, in fact, have very low emissions.
Michael J. Gentilcore
Setting up a special function and a shorthand system on a spreadsheet can improve the descriptions needed for implementing a process control system, while minimizing the monotony in writing them.
Process integration has a far wider scope and touches every area of process design. Industries are making more money from their raw materials and capital assets, while becoming cleaner and more sustainable.
Robert W. Bly
Engineers are often called on to review product brochures and ads for equipment and processes. Here are six tips for working more effectively with an ad agency or corporate marketing-communications department to create good product literature.
David J. Teumim
An understanding of security principles and terminology can help chemical and control engineers relate to the emerging threats of conventional and cyber terrorism.
These distillation setups can cut capital and operating costs by up to 30%, and increase separation efficiency. Here is a straightforward method for evaluation.
Lionel F. Laroche, Susan Morey
Eastern Europe is a significant potential market for Western corporations. There are plenty of opportunities for success if you learn to do business in a way that meshes with Eastern European expectations of how business should be done.
Steven J. Helmer
By understanding the basics of patent law and by establishing a close working relationship with your attorneys, you can ensure that you receive the broadest possible patent protection.
Use these guidelines to improve the performance of steam jet water chillers and find hidden savings in your plant.
Ian Nimmo, Peter Bullemer, Sandra Foreman
In the future, operating teams may proactively manage their plants to maximize safety and minimize environmental impact, while pushing the processes to their optimal limits. Here's how to achieve the necessary paradigm shift by giving operators an...
Mary F. McDaniel, Richard D. Siegel, Michael J. Sullivan
Use this process to develop metrics to help you understand how well you are implementing your community outreach program, as well as how to improve it.
A linear equation has been derived to accurately calculate the flowrate of fluids in the laminar and turbulent regions, and to derive an equation for use in the transitional regions.
Dr. George Georgiou to Receive SBE's James E. Bailey Award; Averting an Epidemic— Novel Device Detects Avian Flu Virus in Less than Half an Hour; Cell-Free Protein Sythesis Comes of Age; Genetically Engineering Microorganisms into Pharmaceutical...
When considering improvements to cooling towers, it's important to perform an economic analysis of the options.
J. Brad Cort, Thomas Pschorn, Bertil Stromberg
Proven commercial-scale equipment already exists for many operations involved in producing biofuels from lignocellulosic feedstocks.
Gary Geiger, Mel J. Esmacher, P.E.
An important first step in maintaining equipment reliability and efficiency is understanding the various types of corrosion damage that can occur.
Women in the chemical engineering profession are gaining equality -- to varying degrees -- in numbers, salary and worklife environment.
The key to sparking and driving innovation is making it systemic throughout the organization's culture.
Olavo C. Leite
This article explains what submerged quench incineration is, describes the components of a typical SQI system, and explains how SQI can be used effectively for wastes containing chlorine and/or fluorine.
In today's competitive marketplace, biopharmaceutical companies are seeking effective and user-friendly drug-delivery platforms for their drug molecules. Miniaturized, microfabricated and nanofabricated devices that can be implanted in the body are...
Victor Norton , William Wilkie
Before selecting a centrifuge for your application, understand its principles of operation and investigate the key process variables.
These spreadsheets highlight losses, uncertainties and value of power used, helping you optimize pumping system designs and save on operating costs.
Use these correlations to compute swirl flowrate and jacket heat-transfer coefficients as functions of agitation nozzle flow.
David Connolly, Saeid Mokhatab, Timothy Newton
The flow fields in multiphase separators are often extremely complicated, making it difficult to model such systems. Computational fluid dynamics (CFD) and visual dynamic modeling (VDM) can be used together to overcome some of the challenges.
Robert J. Conroy, Umesh Mathur, Robert D. Rounding, Daniel R. Webb
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.
Alireza Bahadori, Hari B. Vuthaluru
Use this new correlation, which employs easy-to-solve algebraic equations to estimate gas emissivities, to simplify the design and optimization of boilers, furnaces and other combustion equipment.
IBM scientists from four fields — nanofabrication, microelectronics, physics and biology — are collaborating to develop a “DNA transistor” that could make obtaining a personalized genome analysis easier, faster, and cheaper — ultimately as low as $...
Peter Saling, Bruce W. Uhlman
Eco-efficiency analysis promotes an understanding of the economic and environmental trade-offs over products’ lifecycles, and supports informed, strategic decision-making in all areas of a business, from spurring innovative product development to...
Adam Bader, Wes Bussman, Charles E. Baukal Jr., P.E.
Flares allow for the safe, effective disposal of gases and liquids, by acting as relief devices when a plant must quickly dispose of product within its system to prevent overpressurization and potential explosions.
Ron Marshall, Bill Scales
Annual operating expenses for compressed air systems can exceed the equipment’s purchase price. Follow these seven steps to implement efficiency measures that yield cost reductions.
Bruce A. Barna, Chris D. Gosling, Brendan R. O'Donnel
Get the most out of your heat exchanger by evaluating the trade-offs between a one-time expenditure and reduced operating expenses, increased income, and/or longer operating life span. Brendan R. O'Donnell - Bruce A. Barna - Chris D. Gosling -
Get a jump on process development by addressing environmental, health and safety (EHS) issues together early in the design and development cycle. The result will be a better process and lower costs.
Use this method to predict the temperature of the flue gas leaving the radiant section of a direct-fired process heater.
Robert W. Bly
Are you feeling overwhelmed by the daily influx of memos, letters, reports and journals? These tips will help you develop a systematic method for dealing with the endless stream of material that is essential to your job.