Process Automation & Control

Process Automation During Refinery Unit Transitions

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, March 15, 2011 - 8:00pm
Process Automation ideas and technologies have been used sporadically for decades. However, in US refineries, automation technologies are still...

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.

Statistical Process Quality Control

eLearning (online) Course
This course is coming soon to the AIChE Academy. If you’d like to be notified once it becomes available, please send an email request to eLearning@...

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...

Understand Advanced Process Control

June
2016
Back To Basics
Perry Nordh, P.Eng.
Multivariable processes are controlled by a hierarchical structure of control layers. Field devices and regulatory controls manage individual variables, while advanced process control and production control systems coordinate multiple variables to optimize operation.

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.

Video Tutorial: Intro to Cascade Control

July 14, 2016
Wondering when cascade control is best used? Learn about its advantages and understand when cascade control presents disadvantages. This video tutorial will also look at the block...

Integrated Process Synthesis

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

June 2016 CEP Preview

June 14, 2016
This month a special SBE supplement looks at commercializing industrial biotechnology.

Manage Risk and Improve Production Start-up of Capital Projects

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 13, 2016 - 1:00pm-1:30pm
In the final phases of a capital project, there are periods of high risk and several opportunities to shorten the time to full, on-spec production...

Dynamic Modeling and Advanced Control of Tablet Press

Conference Presentation
AIChE Annual Meeting
Thursday, November 12, 2015 - 12:30pm-3:00pm
The tablet press is one of the most critical but least understood unit operation involved in both batch and continuous tablet manufacturing process...

European Efforts in Process Intensification

Archived Webinar
Aug 19, 2015
European Union (EU) efforts to develop Process Intensification (PI) for the chemical industry have been more focused and organized than US efforts...

Advanced Control of Wild Loads to or from Multiple Units

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 29, 2015 - 4:00pm-4:30pm
Advanced Control of Wild Loads to or from Multiple Units Darwin Logerot , ProSys, Inc., Houston, TX In many situations in refineries and chemical...

Control Strategies and Parameters to Improve Reactor Performance

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 29, 2015 - 3:30pm-4:00pm
There is an incredible difference in process dynamics, control strategies and tuning rules based on the type of reactor. Considerable disagreement...

Impact of Control Valve Performance on Control Performance

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 29, 2015 - 2:45pm-3:00pm
A significant amount of time is often spent specifying and selecting the proper control valve for the application. However, this effort is generally...

Regulators Versus Control Valves: What's the Best Fit?

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 29, 2015 - 1:30pm-2:15pm
This session will review the selection criteria for consideration of pressure regulators vs. control valves for uses on various applications to...

Analysis of the Capabilities of Cybersecurity Defenses

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 29, 2015 - 9:30am-10:00am
The threats to our critical infrastructure continue to evolve. As new cyberattacks are created and discovered, it is incumbent upon us to evaluate...

Cracking Furnace Line Flushing Pre-Commissioning

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 28, 2015 - 4:00pm-4:15pm
The abundance of low cost shale gas has led to numerous projects in North America to expand existing or construct new ethylene production units. Most...

Pyrolysis Gas Sampling

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 28, 2015 - 9:00am-9:15am
PYROLOYSIS GAS SAMPLING Steve Smith David Tamez Duane King Owner – President Analyzer Engineer Analyzer Engineer Smith Analytical, LLC Saudi Aramco...

Advanced Aromatics Recovery Technology with AED-BTX Process

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 28, 2015 - 8:30am-9:00am
For over forty years, the petrochemical industry has used Liquid-Liquid Extraction (LLE) for the Aromatics Recovery. Even though Extractive...

Non-Conventional Methods of Obtaining Combustible Liquid Fuels

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 27, 2015 - 4:45pm-5:15pm
Introduction Limited world reserves of liquid fuel as well as the general trend to reduce atmospheric contamination pose many challenges for...

Demonstrating Separation and Independence of Automated Systems

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 27, 2015 - 4:00pm-4:30pm
Layers of Protection Analysis (LOPA) exposes the role that automation plays in causing initiating events and in responding to the resulting abnormal...

Kraft Lignin Depolymerization Under Hydrothermal Conditions

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 27, 2015 - 4:00pm-4:15pm
Kraft lignin depolymerization was conducted in water and mixture of water and alcohols with different ratios. The highest lignin conversion yields...

A Tutorial on Model Based Loop Tuning

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 27, 2015 - 3:30pm-4:00pm
This presentation provides a tutorial on tuning PID process controllers using the Lambda process model based tuning methodology. This tuning...

Petrochemical Technology Trends: Looking Beyond the Short Term Fix

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 27, 2015 - 3:00pm-3:30pm
The petrochemical industry is both driven by fundamental raw material and product supply-demand factors, and enabled by technologies that open the...

Control System Migration Gone Wild - Best Practices & Lessons Learned

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 27, 2015 - 2:30pm-3:00pm
You have configured the new automation system and reviewed the checklist. Now at start up, loops are not performing the way you expected. Valves are...

Steam Load Shedding System Design Using Dynamic Simulation

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 27, 2015 - 2:00pm-2:30pm
In a refinery, steam utility is one of the most important utilities, which can be used at different temperature ranges. Proper handling of the...

Integrated LNG and NGL Production

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 27, 2015 - 2:00pm-2:30pm
Cryogenic NGL extraction plants from natural gas offer an attractive opportunity for LNG production as a side stream. Cold gas is tapped from the...

Brayton Refrigeration Cycle for Small Scale LNG Plants

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 27, 2015 - 1:30pm-2:00pm
Liquefying natural gas is an industrial process of great importance with the current worldwide production capacity of about 300 million tonnes per...

Refrigeration Compressor Recycle Quench Control

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 27, 2015 - 11:00am-11:30am
Many olefins plant refrigeration compressors use a spray quench of liquid refrigerant to cool the hot recycle gas stream. Typically, the recycle flow...

NOx, NOx, Who's There - Steam Cracker or Smr? a Tutorial and Wrap-up

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 27, 2015 - 9:30am-10:00am
Now that the remaining pieces of the puzzle have fallen into place, it is instructive to revisit NOx abatement measures for steam cracking and steam-...
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