Chemical Engineering Practice

Model Predictive Control: An Overview and Selected Applications

Archived Webinar
Sep 30, 2009
Model Predictive Control (MPC) is the most commonly advanced control technique applied in the chemical process industries. In this Webinar, basic feedback control principles are reviewed using a simple surge tank example. Important challenges in petroleum refining and other large-scale chemical...

Chemical Product Design

Archived Webinar
Sep 9, 2009
This webinar will be of particular benefit to industrial practitioners involved in the design of chemical products and processes, and faculty at universities who teach courses and carry out research in product and/or process design.

Ionic Liquids

Archived Webinar
Aug 26, 2009
This webinar will cover the use of Ionic Liquids for both liquid and gas separations, emphasizing how the choice of anion, cation and functional groups can be used to tailor Ionic Liquids for specific separations.

Piping and Instrumentation Drawings

Archived Webinar
Jul 22, 2009
Piping & Instrumentation Drawings (P&IDs) are important communication tools for engineers. To be effective in the workplace, you must be able to read and interpret them. To facilitate your knowledge of Piping & Instrumentation Drawings, Professor Barry M. Barkel presents the following...

Process Flow Diagrams

Archived Webinar
Jul 15, 2009
The webinar will benefit those inside and outside the process engineering community who need familiarity with PFDs as communication tools.

NFPA Codes and their Relevance to Chemical Processes

Archived Webinar
Jun 3, 2009
The National Fire Protection Association (NFPA) has several hundred codes and standards in print designed to increase fire protection and life safety across a wide range of occupancy classifications. NFPA has numerous codes devoted to the specific hazards posed by chemical process plants. This...

The Ubiquitous Hydrocyclone Separator: Theory and Practice

Archived Webinar
Feb 10, 2009
The hydrocyclone separator, which was invented in 1891 (see E. Bretney, “Water Purifier”, U.S. Patent 453,105) is widely used in process engineering as a classifier, a clarifier, or a thickener. The continuous phase is a liquid and the dispersed phase may be a solid, a gas, or an immiscible fluid...

Nanotechnology: What is it? What are the opportunities?

Archived Webinar
Mar 11, 2008
Nanotechnology deals with the creation of materials, devices and systems through the manipulation of nanoscale matter, and takes advantage of novel and interesting properties that may arise. This is a broad technology that is expected to impact every aspect of the economic spectrum including...
Cover of March 2017 CEP – Cover Feature: Work-Life Balance

March 2017 CEP Preview

March 13, 2017
This month's CEP Magazine looks at managing a healthy and enjoyable work-life balance, along with features on safely servicing relief devices and on improving production...

AIChE Journal Highlight: Microreaction Technology Comes of Age

March
2017
Journal Highlight
Microreaction technology has matured over the past two decades, from simple devices and concepts to diverse commercial equipment and applications. This evolution has occurred in parallel with process intensification efforts aimed at using...

New Products: March 2017

March
2017
New Products
Measurement Equipment Level Transmitters Provide Accurate Measurements in Challenging Applications The Model 2290 unguidedwave radar transmitters and Model 2291 guided-radar transmitters incorporate advanced radar-sensing technology designed for...

Molecular Characterization of Petroleum Streams

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 2, 2014 - 2:00pm-2:30pm
Molecular Characterisation of Petroleum Streams Luyi Liu , Nan Zhang Abstract The highly competitive market in the oil refining industry forces...

Interpreting Piping and Instrumentation Diagrams

January 27, 2011
Learning to read and interpret piping and instrumentation diagrams via dry text-based articles (unlike those produced by yours truly) can be painful. To make this critical topic a...

Centrifugal Compressors in Ethylene Plants

February
2017
Back To Basics
Shane Harvey, P.Eng.
Centrifugal compressors are used in ethylene plants for cracked-gas compression and refrigeration services. This article describes the basic design and operation of these compressors.

Data Science for Chemical Engineers

February
2017
On The Horizon
David Beck, Jim Pfaendtner, James Carothers, Venkat Subramanian
Chemical engineers need data science tools to take advantage of the increasing amount of data available to them. Data storage, analysis, and visualization will play more important roles in the discipline.

Ensure Product Quality through Risk-Based Scale Calibration

February
2017
Instrumentation
Simone Budinsky
Many manufacturing standards are not explicit about scale calibration and testing requirements. This article dispels some common myths about scale performance and explains how calibration and testing based on risk assessment support compliance and quality.

February 2017 CEP Preview

February 14, 2017
This month, CEP looks at compressors for ethylene plants, data science for chemical engineers, risk-based calibration, and much more.

New Breath Monitor Detects Flu Virus

February 13, 2017
A new tool has been developed to sniff out the flu: a hand-held breath monitor that detects the flu virus. The invention is the work of Perena Gouma, a professor in the Materials...

New Products: February 2017

February
2017
New Products
Environmental, Health, and Safety Respirator Lets You Focus on the Job Duraflow is a lightweight and ergonomic powered air respirator that incorporates real-time air-flow control technology. Assurance of respiratory protection means you can focus on...

2018 AIChE Annual Meeting

October 28 - November 2, 2018
The AIChE Annual Meeting is the premier educational forum for chemical engineers interested in innovation and professional growth. Academic and industry experts will cover wide range of topics relevant to cutting-edge research, new technologies, and emerging growth areas in chemical engineering.

Hydroprocessing for Clean Energy: Design, Operation, and Optimization

January, 2017
This book provides a holistic approach that looks at changing process conditions, possible process design changes, and process technology upgrades. It includes process integration techniques for improving process designs and for applying optimization techniques for improved operations, with a focus...

Excelling with Excel #2 – Pivot Tables

July 8, 2010
When I say "pivot table", what comes to mind? For me, I think of cardboard boxes. However, if you're like most humans, you're probably drawing a blank right now. This is...

Video Tutorial: Feedforward Control, part 2

January 20, 2017
This video tutorial from the LearnChemE YouTube series features an example of a dynamic feedforward control. Specifically, this is a feedback-feedforward control scheme that is...

Excelling with Excel #3 – Macros

July 21, 2010
Macros. To many, this term is shrouded in mystery. Between the 'hard problem' of consciousness and talking cats, does this world really need another unsolved mystery? I don't...

Excel Tips for Chemical Engineers in 2017

December 23, 2016
Over the last few years, one of our most popular series has been Excelling With Excel , which takes a look at some incredibly useful Excel tips for chemical engineers. Given the...

Catalyzing Commercialization: Sour Gas Has a Sweeter Future

January
2017
Catalyzing Commercialization
Many distributed natural-gas-containing resources, which include natural gas, landfill gas, and biogas, contain significant amounts of sulfur (mainly as hydrogen sulfide). The sulfur content in these gases, which can range from several hundred parts per million to several percent, must be reduced to acceptable levels (e.g., 1 ppm for demanding catalytic processes and several hundred ppm for internal combustion engines or boilers) before these gases can be utilized.

Excelling with Excel #4 – Indirect References

July 28, 2010
Hi guys. It's Greg the orange cat again with a (very short) Microsoft Excel tip. Tip#4: Indirect References Much of Excel's usefulness comes from an ability to reference cells in...

New Products: January 2017

January
2017
New Products
Environmental, Health, and Safety Adsorbent Makes Use of Glass Waste The Green Glass Adsorbent Technology is made of recycled LCD-panel glass. This unique material adsorbs heavy metal ions from industrial wastewater, and then desorbs the ions so...

January 2017 CEP Preview

January 9, 2017
This month CEP looks at troubleshooting, offers a feature on process safety management don'ts (read full text online), looks at air-cooled heat exchanger performance, and much...

Use Downcomer Gamma Scans to Troubleshoot Your Process

January
2017
Reactions and Separations
Henry Z. Kister, Chuck Winfield
Downcomer scanning can provide valuable information to diagnose your tower. In particular, these scans are useful for determining the mechanism of flooding — one of the most common problems encountered in distillation columns. Follow these guidelines to avoid pitfalls.

Novel Nanotechnique Traps Harmful Emissions

December 19, 2016
Researchers at the University of Texas Dallas have developed a new way of capturing potentially harmful gasses in a metal-organic framework , or MOFs. MOFs are composed of metal-...

Graphene Detects Brain Cancer Cells

December 20, 2016
Researchers at the University of Illinois at Chicago have used graphene to identify a single hyperactive cancerous brain cell, according to a report published this week. The...

Profile: Pursuing Science for the Public Good

December
2016
Profile
For Siddhartha “Sid” Roy, watching the Flint water crisis unfold and listening to the stories of its residents has emphasized the role the public should play in engineering and public health. “If we as engineers have a public-focused mindset, we...

2016 Official Chem-E-Car Competition® Video

November 16, 2016
This year, Korea's KAIST took the top award , coming within 11 cm of the target line. In this video, you'll see highlights from this year's competition, learn how it got started,...

December 2016 CEP Preview

December 7, 2016
This month, CEP features a look at business planning, as well as pump sizing, reducing process safety risks with the bow-tie diagram, and much more.

Books: December 2016

December
2016
Books
Hidden Figures: The American Dream and the Untold Story of the Black Women Mathematicians Who Helped Win the Space Race Margot Lee Shetterly, William Morrow, New York, NY, $27.99, 368 pages, Sept. 2016, ISBN: 978-0-062-36359-6 During the labor...

Video Tutorial: Intro to PID Controllers

December 29, 2016
One of the very latest screencasts from LearnChemE discusses the PID family of controllers, what they do, and how they work. The tutorial covers P-only, I-only, PI, D-only and PID...

Catalyzing Commercialization: Converting Waste Heat into Electrical Power

December
2016
Catalyzing Commercialization
Waste heat is an enormous and largely untapped source of low-cost energy. More than half of the energy consumed in the world escapes into the atmosphere in the form of waste heat. With global energy demand projected to increase by nearly 50% by 2040...

New Products: December 2016

December
2016
New Products
Product Focus: Pumps Multistage Pump Reduces Carbon Dioxide Emissions The Xylem e-HM line of multistage pumps features modular construction and horizontal orientation that is suitable for industrial washing and refrigeration, food and beverage,...

New Products: November 2016

November
2016
New Products
Product Focus: Valves Throttling Valve Provides Dependable Shutoff The Clampseal throttling valve is suitable for severe-service applications that require repeatable flow control and reliable shutoff. The seat and stem assembly can be easily changed...

November 2016 CEP Preview

November 9, 2016
In addition to this month's cover story on food irradiation, you'll find articles on condensate return systems, budgeting techniques, patent strategies, and much more.

Patents: What Makes an Invention Nonobvious?

November
2016
Career Catalyst
M. Henry Heines
In addition to being novel, an invention must be nonobvious to qualify for a patent. Learn strategies that have and can be used to qualify your invention as nonobvious.

Video Tutorial: Introduction to Free Convection

November 10, 2016
If you're not clear about the basics of free convection, this video tutorial is for you. In this post, the LearnChemE YouTube series by the faculty of University of Colorado...

Stop Knocking Your Condensate Return

November
2016
Back To Basics
James R. Risko
Condensate return systems can have a big impact on productivity, energy efficiency, and site reliability. Use this guide to better understand your condensate return, optimize its operation, and mitigate common pitfalls such as high backpressure and water hammer.

AIChE Journal Highlight: A High-Throughput Approach to Designing Materials

November
2016
Journal Highlight
In the November AIChE Journal Perspective article, “High-Throughput Methods Using Composition and Structure Spread Libraries,” John Kitchin and Andrew Gellman of Carnegie Mellon Univ. discuss a method to more efficiently map material properties across composition, structure, and environmental conditions.

AIChE Journal Highlight: Designing Materials for a Sustainable Future

October
2016
Journal Highlight
As the pressing needs of the world gradually shift toward the sustainable supply of energy and raw materials, preservation of natural resources and the environment, and targeted delivery of services and products, new opportunities arise for chemical...
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