Chemical Engineering Practice

Modeling of LNG Spills Into Trenches and Troughs

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Thursday, April 5, 2012 - 12:00am
Trenches and troughs are commonly used in LNG storage and transfer facilities to contain potential LNG spills. The trenches are concrete-lined...

Galvanic Corrosion Between Dissimilar Metals

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Thursday, April 5, 2012 - 12:00am
A Dow USGC cracker suffered a tube failure on a cracked gas compressor inner stage cooler after ten plus years of service. To further extend the...

Furnace Stories

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Thursday, April 5, 2012 - 12:00am
The cracking furnace is the heart of the ethylene plant, consuming the most energy, adding the most value and with the potential to cause the most...

History of NOx In the Ethylene Industry

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
A history of NOx in the Ethylene Industry will be presented.

Anti-Surge Methods for the Base Load LNG Plant Propane Compressor

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
The propane compressor represents a significant capital investment and operating expense of a LNG plant, and is an essential component in providing...

Appropriate Placement of Compressors and Expanders

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
The term “Appropriate Placement” was introduced in Pinch Analysis during the 1980s to indicate how special unit operations should be correctly...

Hydrocarbons Turnarounds EHS Readiness

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
The Dow Hydrocarbons Business has a thorough process for managing excellent EHS performance during Turnarounds. We name an EHS Focal Point for each...

Strategic Chemistry

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
Optimizing the clearing and cleaning of process units during turnarounds. Primary discussion involves the three key areas related to an effective,...

Hydrocracking - An Overview

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
The paper will present an overview of the Hydrocracking process as applied in the refineries today. It will cover Mild Hydrocracking, Partial...

Panel Discussion on Turnaround Excellence

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
A panel of industry experts will discuss topics of interest to Ethylene Producers with respect to turnaround excellence. Topics will be solicited...

Analysis of Turnarounds in Olefin Plants: A 16-Year View

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
Comparative Performance Analysis™ (CPA™) benchmarking studies of the olefin industry have been conducted by HSB Solomon Associates LLC (Solomon)...

Evaluation of Dispersion Models for LNG Siting Applications

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
The federal safety standards for LNG facilities under 49 CFR Part 193 approves the use of specific dispersion models for performing vapor-gas...

Simple Opportunities for Improving Energy Efficiency

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
Energy efficiency has become an important theme in the process industries, and many companies have implemented sophisticated strategies to improve...

Hydroprocessing Design - Tutorial

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
Hydroprocessing or hydrotreating is the key technology to clean, to refine, and to convert crude oils into valuable products, such as gasoline and...

The Rayleigh Equation Revisited What to Do When Alpha Isn't Constant

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
Abstract Integration of the Rayleigh Equation for batch distillation in closed analytical form has heretofore required that relative volatility (α)...

Turnaround Excellence - Key Success Factors

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
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...

Modeling of Ground Flare Pits

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
New LNG liquefaction facilities have been configured to include large ground flares to allow for the safe combustion of large volumes of combustible...

Design Considerations for Diesel Hydrotreaters

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
In 2006, the United States EPA mandated the use of 15 ppmw ultra-low sulfur diesel (ULSD) for on-road diesel fuel. At that time several refiners...

Dynamic Simulation: Value During LNG Process Design and Beyond

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
A contributor to complex/large project management difficulty is uncertainty gaps – gaps between the information required and that readily available...

Capital Cost Targeting of Total Site Heat Recovery

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
Heat recovery on Total Site level can provide a considerably high potential for energy saving. It offers additional degrees of freedom for heat...

Hydrotreating of Biooils to Jet Fuels: An Overview

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
This paper will give an overview of the current status of jet fuels production from hydrotreating of biooils, including vegetable oils and microalgae...

Design Challenges in Tankage Modernization

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
In order to comply with regulation requirements, a refinery needs to perform major revamps to produce different grades of Diesel, namely ULSD, Off-...

Practical Process Integration Retrofit Part 3. Path Analysis

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Practical Process Integration Retrofit Part 3. Path Analysis G.T.Polley The concept of transferring heat along paths was first suggested by Dhole [1...

Refinery-Wide Topics for Profitability, Reliability and Safety

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
In this session we will review several case studies that will allow you to better understand the importance of process engineering and process safety...

Carbon Capture Ready Heavy Oil Extraction and Upgrading

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Carbon dioxide emissions from heavy oil production are typically higher than that of producing conventional crudes. Ultimately, carbon dioxide...

Platformer Debutanizer Revamp & Optimization

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Problem As part of Saudi Aramco Yanbu Refinery Excellence Program, We Identified the platforming high RVP issue as one of the most critical problem...

On-Line Energy Management System - Round 2

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
In 2008-9 Equistar implemented an on-line, open-loop utility optimizer at one of our world scale olefin sites. We call this our energy management...

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...

Using Alarms As a Layer of Protection

Conference Presentation
Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Alarms and operator response are one of the first layers of protection in preventing a plant upset from escalating into a hazardous event. This...

Cryogenic Expander Application in Propane Liquefaction Process

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
The use of cryogenic liquid expanders in the propane liquefaction process can increase the amount of liquefied product by reducing the boil-off...

Reducing CO2 Emissions From Refineries Through Chemistry Upgrade

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Despite the lack of a global greenhouse gas emission reduction agreement, regional schemes are moving forward to limit CO 2 and other GHG emissions...

Practical Process Integration Retrofit Part 1. Cross-Pinch Method

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Practical Process Integration Retrofit Part 1. Cross-Pinch Method G.T.Polley A number of techniques have been developed to aid the process engineer...

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...

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...

Practical Process Integration Retrofit Part 5. Software Needs

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Practical Process Integration Retrofit Part 5. Software Needs G.T.Polley In this final paper in our series on process integration retrofit we look at...

Absorption Refrigeration for Auxiliary Applications in LNG Plant

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
ABSORPTION REFRIGERATION FOR AUXILIARY APPLICATIONS IN LNG PLANT Jordan Belue a , Robert Havlik b , Stanley Huang a , a: Chevron Energy Technology...

Process Safety Regulations - Blessing or Curse?

Conference Presentation
Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Are Process Safety / Risk Management regulations a blessing or a curse? The answer of course is “it depends.” There is little doubt that Process...

Root Cause Study of Debutanizer Column Operational Upsets

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
The NOVA Chemicals Debutanizer Column at the Corunna site experienced operational upsets. Gamma scans revealed that the column had flooded, and upon...

Relief Design for Laboratories and Pilot Plants

Conference Presentation
Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Relief evaluation and system design for laboratories and pilot plants presents unique challenges to the relief designer. Relief devices designed for...

Critical Alarm Management : Connecting the Dots

Conference Presentation
Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
In the aftermath of some high profile national security incidents, investigations starting with the catastrophe or near miss and working backwards...

APC2: Aligning People with Control

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
Advanced Process Control (APC) can take on many flavors and levels of sophistication. On the digital control systems (DCS), advanced regulatory...
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