Chemical Engineering Practice

Integrated Process Synthesis

Instructor-led (classroom) Course
AIChE
As a chemical engineer, before you can make proposed process alterations you must consider the potential investment return. Yet, typically this...

Mixing and Blending of Solids

AIChE Webinar
Oct 30, 2013
This webinar provides an introduction to both the fundamentals of mixing processes and how to assess mixture quality and examine the qualities of...

Wireless Measurement & Control

Virtual Local Section Webinar
Aug 25, 2011
Wireless measurements reduce wiring installation and maintenance costs and eliminate electrical noise and ground loops. The portability of wireless...

Ten Steps to an Effective Bin Design

November
2013
Back To Basics
Eric Maynard
Before choosing a bin and hopper for your bulk solids application, the flow properties and characteristics of the powder or bulk material must be known. Use this ten-step approach to determine the optimal bin design for your process.

Calculate Financial Indicators to Guide Investments

September
2013
Back To Basics
Andy Fennell, John Anderson
Engineers can become better informed about their work with an increased familiarity of basic financial indicators. Use these insights to help ensure that the projects you work on are those that are most likely to become financial successes.

CEP: Process Automation Corner - Process Simulation and Process Control

September
2013
Process Automation Corner
Terry McMahon
Chemical engineers have been practicing process simulation since the advent of the profession in the early 20th century. It was called process design and inevitably involved simplifying assumptions, including that steady-state process conditions had...

Linking SPYRO Rigorous Stream Cracking Model

AIChE Spring Meeting and Global Congress on Process Safety
May 2, 2013
Furnace simulations are currently used in all layers of process control from planning and scheduling down to the APC layer. However in the DCS...

2015 AIChE Annual Meeting

November 8-12, 2015
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.

Green Reactors

August
2008
Reactions and Separations
Mukesh Doble
Compare these microreactor technologies, along with the intrinsic advantages and disadvantages of miniaturization, to achieve process intensification.

Process Burners 101

August
2013
Back To Basics
Charles Baukal, Erwin Platvoet
Process burners may be classified based on flame shape, emissions, fuel type, and other characteristics. Here’s what you need to know to work effectively with a burner manufacturer when selecting a burner for your application.

Chemistry Simulation Drives Clean Technology Progress

August
2008
Fluids and Solids Handling
Scott A. Drennan
Here's how to determine when to use computational fluid dynamics (CFD) to simulate the detailed chemistry of reacting flows for combustion and chemical processes.

Developing Crystallization Processes

March
2011
Reactions and Separations
Christianto Wibowo
With solid-liquid equilibrium as its foundation, this systematic approach makes it easy to identify operating regions and theoretical yield to maximize the desired product.

Apply Six Sigma for Process Improvement and Problem-Solving

March
2011
Back To Basics
George Liebermann
Many manufacturing processes are not run as efficiently as they could be. The Six Sigma methodology provides a foundation for continuous improvement and for solving quality, operational, and other problems.

Evaluating Centrifugal Compressor Performance

July
2013
Fluids and Solids Handling
AIChE’s Equipment Testing Procedures Committee; Centrifugal Compressor Procedure Subcommittee
Follow these practical tips to determine the condition of your centrifugal compressors.

Chemical Reactivity Hazard Training CD-ROM

May, 2006
The Chemical Reactivity Hazards CD is a self-paced teaching tool intended to teach people how to recognize and manage reactive chemical hazards. It provides an introduction to the topic and many online links to additional resources. The CD has three main objectives: Introduce reactive chemical...

Deflagration and Detonation Flame Arresters

May, 2002
Designed for chemical engineers and other technical personnel involved in the design, operation, and maintenance of facilities and equipment where deflagration and detonation flame arresters (DDFAs) may be required, this book fosters effective application and operation of DDFAs through treatment of...

Making EHS an Integral Part of Process Design

June, 2001
This book presents an approach—termed MERITT (Maximizing EHS Returns by Integrating Tools and Talents)—for enhancing process development through better integration of environmental, health, and safety evaluations. It draws upon critical components of inherent safety, pollution prevention, green...

Guidelines for Process Safety in Batch Reaction Systems

September, 1999
Batch reaction systems pose unique challenges to process safety managers because they do not operate in a steady state. The sequence of processing steps, and frequent start-ups and shutdowns, increase the possibility of human errors and equipment failures. And, since batch plants are often designed...

Avoiding Static Ignition Hazards in Chemical Operations

September, 1999
Written by Laurence Britton, who has over 20 years' experience in the fields of static ignition and process fire and explosion hazards research, this resource addresses an area not extensively covered in process safety standards or literature: understanding and reducing potential hazards associated...

Guidelines for Design Solutions for Process Equipment Failures

August, 1998
While there is no "perfect" solution or absolute zero risk, engineering design can significantly reduce risk potential in the CPI. In Guidelines for Design Solutions to Process Equipment Failures, industry experts offer their broad experience in identifying numerous solutions to the more common...

Selecting a Centrifugal Compressor

June
2013
Back To Basics
James M. Sorokes
End users must specify certain performance requirements when requesting a quote for a new centrifugal compressor. Understand your process, as well as the advantages and disadvantages of each centrifugal compressor configuration, in order to choose the optimal centrifugal compressor for your application.

Evaluating Distillation Column Performance

June
2013
Reactions and Separations
AIChE’s Equipment Testing Procedures Committee, Tray and Packed Columns Procedure Revision Subcommittee
Follow these guidelines to assess the capacity and efficiency of distillation columns containing trays or packing.

Selecting Baffles for Shell-and-Tube Heat Exchangers

February
2012
Heat Transfer
Salem Bouhairie
Baffles play a crucial role in regulating shellside fluid flow and improving heat transfer between shellside and tubeside process fluids. Here's how to choose the correct baffle to meet process requirements.

Understand the Basics of Membrane Filtration

April
2013
Back To Basics
Hongyi Zhou, Hua Wang
Membrane filtration is an integral part of many industrial processes, as it is often more environmentally sustainable and cost-effective than other separation technologies

Environmental Law for Chemical Engineers

February
2012
Back To Basics
Mary Ellen Ternes
A basic understanding of environmental law is beneficial for all chemical engineers. Learn how laws are proposed, made, and implemented, and ways to avoid incurring unnecessary penalties.

CEP: Patent Update - An Invention's Nonobviousness May Not Be Obvious

April
2013
Patent Update
M. Henry Heines
To qualify for a patent, an invention must be both novel and nonobvious. Novelty requires that the invention differ in some way from the prior art, such as earlier patents and published materials. Nonobviousness requires that there be more than just...

Determining Torque Split for Multiple Impellers in Slurry Mixing

February
2012
Fluids and Solids Handling
Gregory T. Benz, P.E.
Yield-stress slurries, such as those used in paper, biofuel, and polymer production, can be difficult to mix. This article explains how to determine torque requirements for multiple-impeller slurry-mixing systems to optimize tank geometry and...

Coriolis: The Direct Approach to Mass Flow Measurement

March
2013
Back To Basics
Tom O’Banion
Coriolis meters eliminate the need to measure and correct for pressure, temperature, and density fluctuations to determine mass flowrate. Although their capital costs may be higher, they typically have a lower overall cost of ownership than other types of meters

New Materials for Membrane Separations

Mar 13, 2013
In this webinar, Dr. Richard D. Noble - the co-director of the NSF Industry/University Cooperative Research Center for Membrane Applied Science...

Liquid Product of Liquid Phase Pyrolysis

Forest Bioproducts Division Webinar
Feb 10, 2010
Ligno-cellulosic feed is expected to contribute significantly to production of liquefied combustibles in the future, because of the quantity and the...

Successfully Scale Up Solids Handling

April
2008
Fluids and Solids Handling
John W. Carson, K. Eric Bengtson, Thomas G. Troxel
A sound theoretical model of the process to be scaled is the best approach; if one is not available, bench-scale testing, physical scale modeling or full-scale modeling is required. Here are guidelines as to which method is appropriate for various...

Designing Suspension-Mixing Systems

January
2006
Fluids and Solids Handling
Frantisek Rieger, Pavel Ditl
Impeller and vessel geometries are key factors in selecting mixing equipment to efficiently suspend particulate solids in slurries

Diagnosing Maldistribution in Towers

May
2007
Reactions and Separations
Simon X. Xu
Gamma CAT-scan technology makes possible the collection of much more vital online process information than conventional diagnostic techniques.

A Hybrid Route to Chirally Pure Products

November
2005
Reactions and Separations
Christianto Wibowo , Lionel O'Young
Chromatographic resolution coupled with crystallization can be your best option for manufacturing chirally pure products.

Selecting Elbows for Pneumatic Conveying Systems

September
2007
Fluids and Solids Handling
Paul Wagner
The right elbow can keep your system operating at peak performance, reduce maintenance costs, and minimize material attrition and elbow wear. This article describes common elbows and outlines factors to consider when selecting one.

Piloting Bioreactors for Agitation Scale-Up

February
2008
Reactions and Separations
Gregory T. Benz
This article offers guidance on how to design appropriate experiments to measure scalable data for agitation in both aerobic and anaerobic bioreactors.

Computational Fluid Dynamics - Power to the People

April
2007
Computational Methods
Suzanne Shelley
Today's CFD Programs are more powerful and easier to use than ever, thanks to improved mesh-generation strategies, computational methodologies, user interfaces and enhanced graphics capabilities. Cover photo courtesy of Acusim and Intelligent Light.

Designing Pneumatic Conveying Systems

May
2006
Fluids and Solids Handling
Eric Maynard
Use this 9-step methodology to design and operate a reliable and cost-effective system to efficiently transport materials.

Troubleshooting Distillation Simulation

June
2006
Reactions and Separations
Stanislaw K. Wasylkiewicz
A tool called azeotrope pressure sensitivity analysis (APSA) can shed light on the dependence of an azeotrope's composition and temperature on changes in pressure.

Realistically Predict Capacity and Pressure Drop for Packed Columns

July
2007
Reactions and Separations
Emil Abkar, Henry Z. Kister, Jeffrey Scherffius, Khashayar Afshar
Generalized pressure-drop correlation (GPDC) charts have been the standard for predicting packing flood points and pressure drops. This article guides engineers on the correct and incorrect uses of the GPDC interpolation procedure, and updates the...

Consider Recycled Water for Your Cooling Tower Makeup

February
2013
Heat Transfer
Paul Puckorius
Many types of “used” water may be appropriate as cooling tower makeup. Here’s how to determine which waters are suitable and cost-effective for the equipment in your cooling system.

Prevent Pulsation Problems in Piping Systems

March
2006
Fluids and Solids Handling
Mark Corbo
Eliminate unnecessary damage in piping systems by following these guidelines to avoid pulsations from pumps and compressors.

Applying the Paradigm Case Method for Flowmeter Selection

September
2006
Fluids and Solids Handling
Jesse Yoder
This effective approach to flowmeter selection involves a step-by-step method that begins by matching the application with the flowmeter(s). Then, a series of criteria are applied to narrow the selection.

Beware of Errors in Numerical Problem-Solving

November
2009
Computational Methods
Michael B. Cutlip, Michael Elly, Mordechai Shacham
Understand how to detect and prevent common errors when using mathematical software tools.

Assess the Performance of Positive-Displacement Pumps

December
2007
Fluids and Solids Handling
AIChE's Equipment Testing Procedures Committee
Here's how to evaluate rotary pumps— gear, lobe, vane and multiple-screw designs— regardless of whether the material being handled is a Newtonian or non-Newtonian fluid.

Apply an Integrated Approach to Catalytic Process Design

February
2007
Reactions and Separations
James Nehlsen, Mitrajit Mukherjee, Richard V. Porcelli
To ensure a practical, efficient and economically viable process, first consider how a successful catalytic reaction system would work, then focus on making a catalyst with the desired characteristics.

Understanding Crystallization and Crystallizers

October
2006
Fluids and Solids Handling
Ketan D. Samant, Lionel O'Young
Gain qualitative insight into the basic mechanisms of crystallization, the principles of crystallizer operation, and the ways in which these concepts relate to the selection and application of the various crystallizer configurations in industrial...

Easy Ways to Improve Energy Efficiency

December
2012
Operations & Maintenance
Alan Rossiter, Veerasamy Venkatesan
Managing the energy consumption of a process does not need to be complicated. This article presents some examples of less-complicated strategies.

Cost Management in Heat-Transfer-Fluid Systems

July
2006
Heat Transfer
Conrad E. Gamble, P.E.
By taking ownership of fluid-related decisions for the entire life of the project, from design through dismantling, users can secure the best and lowest-cost approach in process heating and cooling.

Optimal Automated Process Fault Analysis

January, 2013
With this book as their guide, readers have a powerful new tool for ensuring the safety and reliability of any chemical processing system. It details a tested and proven strategy to develop optimal automated process fault analyzers.

Shale Gas Brightens Outlook for U.S. Chemicals

January
2013
Chem Economics
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...

Optimizing an Organic Rankine Cycle

January
2013
Heat Transfer
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.

Implement an Effective Loop Tuning Strategy

January
2013
Back To Basics
Norman Ito, Timothy Olsen
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...

Safety in the LNG Value Chain

Dec 12, 2012
In this webinar, presenters describe and examine potential LNG (liquefied natural gas) hazards and risk-reduction methods for the LNG value chain ―...

Turnaround Excellence - Key Success Factors

AIChE Spring Meeting and Global Congress on Process Safety
Apr 4, 2012
Turnaround Excellence is more than a state of being… it is a journey. Achieving and sustaining excellence is wholly dependent on a site approach of...
Subscribe to Chemical Engineering Practice