Corrosion under insulation (CUI) is corrosion of piping, tanks, or other equipment that occurs due to water under insulation or ﬁreprooﬁng. Faulty or damaged insulation is frequently a source of the water that causes corrosion, and the insulation may also hide the damage so you are not aware of it.
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Sujata K. Bhatia
A fermentation process leverages live cells to manufacture a variety of products. Choosing the correct host cell, as well as the optimal production equipment and method, are the fundamental ﬁrst steps of these complex processes.
Pavel Ditl, Frantisek Rieger
Impeller and vessel geometries are key factors in selecting mixing equipment to efficiently suspend particulate solids in slurries
Michael Cipullo, Jeffrey Mueller
Use this holistic approach as the basis for a process development strategy to identify environmentally sound, cost-effective, low-waste-generating processes.
The new year brings the excitement of setting new goals. I have learned my best lessons on goal setting from one of my hobbies, running — and what I’ve learned can be applied to professional goals as well.
Ali Bourji, P.E., Alan Winstead
An organic Rankine cycle (ORC) system can be a cost-effective way to convert waste heat to electricity. The key is finding the best ratio of net power recovery to capital cost.
Global Relationships Take Center Stage at the 2012 Annual Meeting; No Boiling Needed: Nanoparticles Convert Sunlight into Steam; Hydrogen Power Goes Mobile; Carbon Nanotubes Team Up with Graphene; New Process Brings Bendable Electronics Closer to Reality; and more.
In support of its strategic mission to become a global organization of chemical engineering practitioners, AIChE hosted three joint international symposia at the 2012 AIChE Annual Meeting held in Pittsburgh, PA, Oct. 28 to Nov. 2. AIChE joined with...
In the January AIChE Journal Perspective article, “Engineering Biomass Conversion Processes: A Systems Perspective,” Univ. of Minnesota researchers Prodromos Daoutidis, W. Alex Marvin, Srinivas Rangarajan, and Ana Torres discuss the challenges,...
Users of fiber-reinforced plastic (FRP) in the chemical process industries (CPI) have long recognized the limitations of the test protocol currently used to determine material compatibility, ASTM C581, Standard Practice for Determining Chemical...
Martha Gilchrist Moore, T. Kevin Swift
The chemical industry will experience moderate annual growth over the next few years — ranging between 2.2% and 4.6% through 2017. The higher growth rate accounts for new investments announced in response to the abundant supply of shale-based...
David K. Whittle, Kevin Smith
Process hazard analyses must be revamped — or redone from scratch — every five years by law. Following the guidance given here will facilitate this effort.
All-Weather Material Emits Near-IR Light; Graphene Gets Selective; Shock Treatment Creates Nanoporous Materials; Bacteria are Engineered to Eat Cellulose and Produce Liquid Fuels; and more.
William R. Schowalter
Although the effects of globalization have revolutionized corporate behavior, they are only beginning to affect the thinking, and much less the policies, of U.S. research universities. It is something that should be embraced, rather than resisted.
Advances in science and technology, the application of diverse government regulations and policies, and green business practices are all needed to advance sustainabilty. Biofuels production is a good case study to illustrate how government and...
Robert W. Sylvester
These relatively simple lifestyle changes enabled one individual to reduce energy costs by $2,000/yr and his carbon footprint by one-third.
These automation tools help equipment vendors serve their customers better, support their sales force, and profit in many ways.
John R. Puskar, P.E.
Repairing natural gas piping is inherently dangerous. Follow these safety protocols to avoid potentially catastrophic results from improper installation and repair of natural gas lines.
Faisal I. Khan
Risk-based monitored natural attenuation effectively monitors the extent of contamination, the associated risk, and the effectiveness of natural clean-up processes.
Mary F. McDaniel
Understand the implications of the pending regulations to better address residual risk and to develop an effective communications plan.
T. Kevin Swift
Recovery has stalled in developed nations. Debt, unemployment, and the emerging recession in Europe will encumber U.S. growth prospects in the years ahead. One bright spot, however, is the shale gas story.
By employing the latest virtualization solutions for process control systems, chemical plants can reduce PC hardware requirements, simplify system management, and lower the total cost of ownership, as well as improve site availability, reliability,...
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.
Gregory T. Benz
This article demonstrates that the repair and expense costs of process trains are not proportional to their capital costs and that, in most cases, building one plant with a single process train is the most economically efficient choice. <br>...
Avoid some common pitfalls by taking this holistic approach when implementing projects to reduce the consumption of steam.
Margaret Clarke Hunt
These profiles of a dozen engineers in different stages of their careers offer snapshots of where chemical engineers are employed.
Setting up a hand-protection program involves understanding the hazards, choosing the appropriate glove, training personnel on glove use, and ensuring that employees use their gloves properly.
Many gloves offer protection from chemicals. This article will help you understand what type of glove can provide the best protection for your application.
T. Kevin Swift
Understand the economic state of the chemical industry and trends in capital investment to make wise corporate-spending decisions.
Dennis C. Hendershot
Merging the design processes of inherent safety and operational reliability reduces the total technial resources, while improving both parameters.
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.
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>
Jonathan H. Worstell
Commercializing a new technology often means reaching accord between clashing groups. Here’s a road map to navigate these hurdles.
June C. Bolstridge
These websites provide useful data, models, publications and other resources to aid environmental decision-making and regulatory compliance activities.
Lanny A. Robbins
The Robbins tuning rules can reduce the variability of control loop response to about 60% of that observed with Ziegler-Nichols tuning rules.
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...
James D. Weith
Understanding how you and those around you make decisions is a first step in improving interpersonal relationships and team efficiencies.
Lisa L. Walker
The people you identify as references in your job search act as your ambassadors to a potential employer. Choosing references who can paint a clear picture of your strengths and potential can be a decisive advantage in your employment campaign.