Process Automation & Control

Balancing Act - Simple Techniques for Steam Header Controls

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 30, 2013 - 10:15am-10:45am
An industrial steam distribution system with multiple headers, turbines, boilers, and reducing valves is managed with header control strategies that...

Take the Guess Work Out of Testing Your Safety Instrumented System

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 30, 2013 - 10:15am-10:45am
Key Words Process Safety, IEC 61508, Programmable Electronic Systems, Architectural constrains, Periodic Automatic and Manual Testing, Safety...

Abqaiq Plant Virtual Plant RTO Implementation

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 29, 2013 - 4:00pm-4:30pm
Abqaiq Plant Virtual Plant RTO Implementation Abstract Abqaiq Plant is the largest worldwide crude stabilization plant with $200MM energy consumption...

Eliminating Difficult Start Ups with State Based Controls

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Some processes are just difficult to start up. Every year, significant production is lost due to start up delays, product quality issues after...

Opportunities and Challenges for Advanced Biofuel Industry

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Biofuels have been criticized for leading to rise in food costs. Advanced biofuels steer clear of this controversy as they are produced mostly from...

Amine Treating: A Technology Review and Tutorial

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Removal of H 2 S and CO 2 from gas streams and liquid hydrocarbon streams is important in many industrial processes. Solutions of aqueous amines have...

MPC Revamp of Two Naphtha Crackers, Lessons Learned and Relearned

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Braskem is the 8th largest petrochemical company in the world and the biggest producer of polymers in the Americas. The Braskem Triunfo site includes...

Dynamic Simulation of Demethanizer and Chilling Train System

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 2, 2012 - 12:00am
The chilling train system is an important part of ethylene plant which is usually combined with demethanizer and a series of flash drums to separate...

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.

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.

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...

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...

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...

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...

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...

Pilot-Scale Testing of the Glyocolic-Nitric Acid Flowsheet

Conference Presentation
AIChE Annual Meeting
Tuesday, November 18, 2014 - 3:45pm-4:15pm
The Defense Waste Processing Facility (DWPF) treats legacy nuclear waste generated at the Savannah River Site (SRS) during production of plutonium...

Improving the Control of Process Flows

Conference Presentation
Southwest Process Technology Conference
Friday, October 10, 2014 - 10:30am-11:00am
This presentation will introduce an unusual flow control algorithm that out-performs the PID algorithm when used for flow control. The algorithm was...

Cracker Feedstock Changes: From Naphtha to Ethane Cracker

Conference Presentation
Southwest Process Technology Conference
Friday, October 10, 2014 - 9:00am-9:30am
Driven by the US shale gas boom, cracking ethane to ethylene became more attractive than cracking liquid feedstocks in the last years. Therefore...

Dewaxing Challenging Paraffinic Feeds in North America

Conference Presentation
Southwest Process Technology Conference
Thursday, October 9, 2014 - 9:30am-10:00am
With the more difficult and highly paraffinic feedstocks on the market along with more stringent diesel specifications, the need to provide an...

Identifying Energy Efficiency Opportunities in the Process

Conference Presentation
Southwest Process Technology Conference
Thursday, October 9, 2014 - 9:30am-10:00am
The most neglected area for energy efficiency evaluations in the process industries is within the process itself. Most programs focus either on...

Processing Shale Oils in FCC: Challenges and Opportunities

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 2, 2014 - 2:30pm-3:00pm
Shale Oils such as Eagle Ford and Bakken are fast becoming a major feed source for US refineries. The rapid introduction of shale oils to the...

Gas Trial for FLNG Nearshore Commissioning

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 2, 2014 - 2:00pm-2:30pm
Gas trial is the important process to evaluate Cargo System Performance for FLNG Project. Several methods are now being considered and we will...

Cascade Utilization of Fuel Gas Energy in Gtl Plant

Conference Presentation
AIChE Annual Meeting
Thursday, November 7, 2013 - 4:45pm-5:00pm
This paper investigates on a GTL plant with ATR syngas production and proposes a new process to use GT/WHRGSP to replace the fired heater. The new...

CO2 Utilization Via Chemical Looping Process

Conference Presentation
AIChE Annual Meeting
Thursday, November 7, 2013 - 1:45pm-2:15pm
Introduction Chemical looping is one of several emerging technology options capable to reduce the carbon dioxide emissions and helping in a diverse...

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