Read about new products and services in the areas of fluids and solids handling and laboratory equipment.
Reed M. Izatt
With recycling rates near zero and demand for precious and specialty metals increasing as the number and variety of high-tech products increases, the need for creative, practical ideas to improve metal sustainability is of utmost importance.
U.S. Chemicals Remain Bright Spot in the Global Economy; Hot Off the Press: Rewritable Paper; Greening Rare Earth Elements; and more
The worst process incident that can happen in your plant may not be the same as the highest process risk. Risk is a combination of how likely an incident is and how bad the consequences could be. The process incident in your plant with the worst consequences may be very unlikely to occur. Other less-severe incidents may be more likely, making the risk of these events higher than the incident with the worst consequences. You should be aware of all process risks in your plant, and your role in managing all of them.
Calvin Cobb, Botond Bertok, Heriberto Cabezas, Darlene Schuster, Beth Beloff, Dicksen Tanzil, Ferenc Friedler, Reed M. Izatt , Kevin Chin, István Heckl
Sustainability: What We Measure We Can Improve; Sustainability Trends in the Chemical Industry; Use the P-graph Framework to Design Supply Chains for Sustainability; Recovering Metals from Electronic Wastes
Managing chemical reactivity hazards is more complex than other major hazards. Learn how to use process hazard analysis (PHA) to identify such hazard scenarios and determine whether additional risk-reduction measures are needed for your process.
Kirk Richardson, Robert McTamaney
The Materials Technology Institute’s (MTI) recent Refiners Roundtable meeting included discussions on (among other topics) internal investigations into causes of significant failures and ways to improve process safety. Here are the top ten things your company should be doing.
Gaston Arseneault, Christopher Armstrong
The key to maximizing the useful life of heat-transfer fluids in liquid-phase systems is proper fluid selection. This article discusses the most common methods of deterioration and suggests potential solutions.
In the current job market, people rarely stay employed with the same company that hired them after college for their entire career. If you want to take control of your career and make a job change that is consistent with your professional and personal goals, allow enough time to weigh the pros and cons instead of making the decision on a whim. The most critical step in this process is not updating your resumé, but making sure that the new position will be a good fit and not just a quick fix. I like to think of changing jobs as a process with four key steps: recognizing that it is time to move on, deciding where you want to go, determining what you need to get there, and then networking your way in.
We need to make the best use of all the tools in our collective toolbox, including the talents of our disabled colleagues.
“Diversity programs are not only the right thing to do, but they are also the smart and necessary thing to do. We view diversity and inclusion, and promotion of different cultural perspectives, as catalysts, because we know these efforts unleash...
Sustainability is a path of continuous improvement, wherein the products and services required by society are delivered with progressively less negative impact upon the Earth.
Emerging applications, from wearable electronics to robotics, and advances in electronics allowing designers to pack more components into ever-more-compact space are driving demand for thin, flexible, high-performance batteries with low toxicity and green chemistries.
Calvin Cobb, Darlene Schuster, Beth Beloff, Dicksen Tanzil, Kevin Chin
The AIChE Sustainability Index® provides benchmarks of a company’s performance on a variety of metrics related to corporate social responsibility.
President’s Corner; AIChE Gala Salutes Corporate Leaders for Promoting Diversity in Engineering; AIChE Partners on Engineering and Technology History Wiki; Institute and Board Award Nominations Due Feb. 15; Annual Meeting Highlights
Increasing efforts to control greenhouse gas emissions and a changing portfolio of energy sources as a result of shale gas production are driving the development of new process technologies for the production of energy and chemicals. One such...
Heriberto Cabezas, Botond Bertok, Ferenc Friedler, István Heckl
This approach allows you to evaluate alternative supply chains based on criteria such as cost and environmental footprint to identify the most sustainable option.
Capital projects are complicated and can be fraught with all sorts of issues. Follow these guidelines for safe and efficient work — to avoid problems, maintain relationships, and ensure your success as a construction manager.
The beneﬁcial microbes that convert milk into yogurt and act in our guts to promote digestive health cause big problems in ethanol fermentation tanks. These lactic acid bacteria (LAB) proliferate in ethanol feedstock and inhibit growth of ethanol-producing yeast — which slows down fermentation, reduces biofuel yield by as much as 20% per pound of input material, and results in production shutdowns due to contamination. The most common control measures, chemical antimicrobials such as antibiotics, do not eliminate LAB. Additionally, the potential for antibiotic residue limits the marketability of dried distillers grains, a byproduct of the fermentation process used as animal feed. Ecolyse Inc., based in College Station, TX, is working to address this issue by developing products to treat bacterial contamination.
Process safety has come a long way since the Bhopal tragedy in 1984. However, accidents in the chemical process industries continue to occur. Post-mortem analysis has indicated that many were preventable and had similar systemic causes. This begs the question: Why do we fail to learn from past events and make adequate changes to prevent their recurrence? In the January AIChE Journal Perspective article, “A System-Theoretic, Control-Inspired View and Approach to Process Safety,” Nancy G. Leveson and George Stephanopoulos of MIT offer their take on this question.
Harmless Virus Helps Assemble Li-O2 Cathode for Batteries; A Sticky Solution for Tissue Engineering; Biopatch Catalyzes Bone Regeneration; Shape-Shifting Material Heats Up; and more
President’s Corner: Our Evolving Profession; AIChE Gala Spotlights Ethics; Southwest Process Technology Conference; Award Nominations; Member News
Read about new products and services in the areas of instrumentation, fluids and solids handling, and laboratory equipment.
Richard Calabrese, Minye Liu, Suzanne Kresta
Here is a look at the key milestones in the ﬁeld of mixing, and how these foundational developments paved the way for current industrial practice.
This article bridges the gap between theory and practice for the design of continuous-ﬂow mechanically agitated reactors, with a focus on mechanical and hydraulic issues.
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.
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.
CUI is common in processing plants and reﬁneries operating equipment in a temperature range of 25–400˚F. The cost to industry in time, money, and risk is staggering, drawing the interest of the Materials Technology Institute (MTI) and others in the chemical process industries.
New measurements are valuable only if they increase the economic value of the plant. Evaluate a measurement investment by quantifying the expected improved ﬁnancial performance.
Last month, I wrote about creativity and pointed out two ways to spark your creativity — relax, and look at things in a fresh way. As I was researching that editorial, I kept coming across another creativity booster: fun.
Jonathan P. Walter
Steam trap management is important for the successful operation of a chemical processing plant. Follow these guidelines to realize the benefits of such a program.
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.
Frantisek Rieger, Pavel Ditl
Impeller and vessel geometries are key factors in selecting mixing equipment to efficiently suspend particulate solids in slurries
When reporting on events, writers and editors always need to be mindful of when the reader will receive the publication. This is especially critical for a monthly magazine like CEP. An event that is considered breaking news when we experience it or...
Timothy Olsen, Norman Ito
Use these loop tuning guidelines to improve process control and enhance product uniformity Many undergraduate chemical engineering programs teach the Ziegler-Nichols tuning methods, developed by John G. Ziegler and Nathaniel B. Nichols in the 1940s...
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.
Read about new products and services in the areas of instrumentation; heat tranfser; and fluids and solids handling.
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...
Molly Myers, Judy Perry
A little creativity during preparation — developing checklists, grouping similar processes, pre-populating worksheets, and considering possible deviations and safeguards before meeting face to face — goes a long way toward improving the efficiency and effectiveness of your PHA efforts.
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.
Alan Winstead, Ali Bourji, P.E.
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.
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.
Senem Surmeli, Kristin D. Norton, P.E., Steven T. Maher, P.E.
Continue to search for ways to build safety into your process — from conceptual through detailed design, to procurement and construction, and even into operation.
Jack Chosnek, Victor H. Edwards, P.E.
Don't overlook opportunities to build more safety into a process that is already in operation.
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.
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.
Darlene Schuster, Calvin Cobb, Darlene Schuster, Beth Beloff and Dicksen Tanzil
The AIChE Sustainability Index provides practical benchmarks along a number of well-defined metrics.
Freeman Self, Freeman Self
An analysis of past employment data can help identify future trends in chemical engineering. FreemanSelf-EdEkholm-
Edward Cussler, Edward L. Cussler
To adapt to changes in the industry, chemical engineers will require a change in mindset, as well as an enhanced skillset.
In the application of pinch analysis for energy efficiency improvement and process optimization, technical excellence is necessary and human interactions are important for project success.
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...
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,...
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