Process Control

CO2 Utilization Via Chemical Looping Process

AIChE Annual Meeting
Nov 7, 2013
Introduction Chemical looping is one of several emerging technology options capable to reduce the carbon dioxide emissions and helping in a diverse...

The Renaissance of the North American Energy Sector

Southwest Process Technology Conference
Oct 4, 2013
Until just a few years ago, the widespread view was the U.S. was a mature oil and gas province with production in general decline. However, with the...

LNG Technology Development at Air Products

AIChE Spring Meeting and Global Congress on Process Safety
May 1, 2013
This presentation will trace the beginning of MCR (mixed components refrigerant) and use of Coil Wound Heat Exchanger, from helium recovery to the...

Nonlinear APC Solution for Polypropylene Plants

AIChE Spring Meeting and Global Congress on Process Safety
May 1, 2013
Abstract A Nonlinear Model Predictive Control Solution has been implemented on the two Polypropylene Lines at Saudi Polyolefins Company (TASNEE)...

Abqaiq Plant Virtual Plant RTO Implementation

AIChE Spring Meeting and Global Congress on Process Safety
Apr 29, 2013
Abqaiq Plant Virtual Plant RTO Implementation Abstract Abqaiq Plant is the largest worldwide crude stabilization plant with $200MM energy consumption...

Fundamentals of Model Based Loop Tuning

AIChE Spring Meeting and Global Congress on Process Safety
Apr 29, 2013
There are many methods to tune PID controllers. This presentation provides a tutorial on tuning PID process controllers using Internal Model Control...

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...

Account for Uncertainty with Robust Control Design - Part 2

November
2014
Instrumentation
J. Ward MacArthur, Konstantinos Tsakalis, Rakesh Joshi, Sachi Dash
Robust control can be applied to design controllers that can handle process uncertainty. Learn how to use identification experiments to obtain estimates of this uncertainty.

Account for Uncertainty with Robust Control Design - Part 1

November
2014
Instrumentation
J. Ward MacArthur, Konstantinos Tsakalis, Rakesh Joshi, Sachi Dash
The dynamic behavior of your process can never be modeled perfectly. However, process controllers can be designed to handle this so-called uncertainty.

Gas Trial for FLNG Nearshore Commissioning

AIChE Spring Meeting and Global Congress on Process Safety
Apr 2, 2014
Gas trial is the important process to evaluate Cargo System Performance for FLNG Project. Several methods are now being considered and we will...

APC2: Aligning People with Control

AIChE Spring Meeting and Global Congress on Process Safety
Apr 3, 2012
Advanced Process Control (APC) can take on many flavors and levels of sophistication. On the digital control systems (DCS), advanced regulatory...

Advanced Control of Multiple Sulfur Recovery Units

AIChE Spring Meeting and Global Congress on Process Safety
Apr 2, 2012
Sulfur Recovery in a Refinery entails collecting sour vent gases (containing H2S) from a number of sources, including Hydrotreaters, Hydrocrackers,...

CEP: Process Automation Corner - The U.S. Process Automation Enterprise Looks to the Future

March
2014
Process Automation Corner
Terry McMahon
The outlook is bright for the process automation enterprise in the U.S. through this decade and into the next. Process automation skills and know-how are honed through challenging projects and are perfected by maintaining these systems at peak efficiency. Without constant renewal based on new and different challenges, these skills tend to atrophy and become obsolete. Fortunately, after more than a decade of decline, the U.S. process industries are entering a period of highly advantaged resource and energy availability.

CEP: Process Automation Corner - Real-Time Analytics for Pharmaceutical Quality Control

December
2013
Process Automation Corner
Terry McMahon
When the U.S. Food and Drug Administration (FDA), under the leadership of Ajaz Hussain, then the Associate Director of the FDA’s Center for Drug Evaluation and Research (CDER), launched the Process Analytical Technology (PAT) Initiative a decade ago, it set in motion a multifaceted search for a more scientifically based approach to pharmaceutical manufacturing and quality assurance. Hussain’s call for more PAT in the industry’s manufacturing operations was really more of a challenge to current practices than a proscriptive program. The pharmaceutical industry has responded with a renewed emphasis on understanding the scientific basis of its processes, and toward that end has made significant investments in personnel and tools.

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...

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...

Advanced Process Control: Beyond Single Loop Control

June, 2010
This book fills the gap between basic control configurations (Practical Process Control) and model predictive control (MPC). For those loops whose performance has a direct impact on plant economics or product quality, going beyond simple feedback or cascade can improve control performance, or...

Design and Control of Distillation Systems for Separating Azeotropes

March, 2010
Hands-on guidance for the design, control, and operation of azeotropic distillation systems Following this book's step-by-step guidance, readers learn to master tested and proven methods to overcome a major problem in chemical processing: the distillation and separation of azeotropes. Practical in...

Using Automation to Produce Quality Pharmaceuticals

October
2011
Instrumentation
Joseph S. Alford, P.E.
Automation can pay large dividends in the form of reduced process cycle times, lower operational costs, and more-consistent processes for manufacturing high-quality pharmaceutical products.

The World of Wireless

February
2010
News Feature
Matthew McKeon-Slattery
As wireless technologies have advanced, old limits have been overcome and new challenges have sprung up. Further growth is likely to be driven by specific application and cost-reduction needs. <br>

Optimize Process Regulation

December
2001
Instrumentation
Phillip D. Schnelle
Laboratory feedback proportional-integral control integrates statistical process control with automatic process control to minimize process variability.

Tracing Process Problems

April
2002
Instrumentation
John E. Hoots
In water chemistry control, fluorescent tracing technology can quickly and effectively determine and deal with the root cause of a problem.

Reduce Thermal Risk in Industrial Synthesis

October
2001
Safety
Richard C. Wedlich 
Knowing the safe operating conditions for a reaction allows us to select appropriate safety measures and thereby lower both the likelihood and the severity of a thermal runaway.

Choose the Right Gas Sensor

September
2009
Instrumentation
Sandra Barnes
Selecting a sensor for continuous monitoring involves many considerations. This article discusses the types of sensors available, their applicability and limitations, and how to choose an appropriate sensor to protect people and equipment.

Practical Process Control: Tuning and Troubleshooting

December, 2009
Practical Process Control (loop tuning and troubleshooting). This book differs from others on the market in several respects. First, the presentation is totally in the time domain (the word "LaPlace" is nowhere to be found). The focus of the book is actually troubleshooting, not tuning. If a...

The Chemical Industry Phoenix

June
2012
Process Automation Corner
Terry McMahon
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.

Process Control for Microreactors

August
2001
Instrumentation
Don  Humbert, Lech  Znamirowski, Olgierd A. Palusinski, Sarma Vrudhula
Field-programmable analog arrays coupled with microreactor technology promise to change the way plants are built, as well as the methods by which their processes are designed and controlled.
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