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Chemical Engineering Practice

Simple Opportunities for Improving Energy Efficiency

Apr 4, 2012
Alan Rossiter
Energy efficiency has become an important theme in the process industries, and many companies have implemented sophisticated strategies to improve both the design and the operation of their plants. However, many efficiency improvements are possible simply by doing basic things right. This article...

Application of the Anti-Sloshing Blanket to LNG Carriers and FLNG

Apr 3, 2012
Sangeon Chun
Sloshing is long problematic issue on achieving safety and reliability of LNG carriers and FLNG if the liquid level is below at a certain point in the containment system. Sloshing motion can be significantly reduced by covering the free-surface using a patented floater type blanket which is formed...

Platformer Debutanizer Revamp & Optimization

Apr 3, 2012
Rakan Bilaus
Problem As part of Saudi Aramco Yanbu Refinery Excellence Program, We Identified the platforming high RVP issue as one of the most critical problem than needed to be resolved with high priority. The high reformate RVP causes problems with gasoline blending leading to high RVP in summer months,...

Practical Process Integration Retrofit Part 1. Cross-Pinch Method

Apr 3, 2012
G. T. Polley
Practical Process Integration Retrofit Part 1. Cross-Pinch Method G.T.Polley A number of techniques have been developed to aid the process engineer retrofit heat recovery networks. The first of these methods was called the ?Cross-Pinch Method? (Tjoe & Linnhoff [1986]) and whilst it is widely...

Refinery-Wide Topics for Profitability, Reliability and Safety

Apr 3, 2012
Mike Siravo
In this session we will review several case studies that will allow you to better understand the importance of process engineering and process safety basics. These examples will show specific pitfalls to avoid but also will open your thinking to properly consider the implications of other...

Absorption Refrigeration for Auxiliary Applications in LNG Plant

Apr 3, 2012
Jordan Belue
ABSORPTION REFRIGERATION FOR AUXILIARY APPLICATIONS IN LNG PLANT Jordan Belue a , Robert Havlik b , Stanley Huang a , a: Chevron Energy Technology Company, Houston, Texas b: Tengizchevoil, LLP. ABSTRACT A Liquefied Natural Gas (LNG) plant demands a large amount of mechanical power for generating...

APC2: Aligning People with Control

Apr 3, 2012
Raymond Coker
Advanced Process Control (APC) can take on many flavors and levels of sophistication. On the digital control systems (DCS), advanced regulatory controls can create value using property predictions cascaded to DCS controllers or feed forward or decoupling signals can be added to improve stability...

Practical Process Integration Retrofit Part 2. Remaining Problem Analysis

Apr 3, 2012
G. T. Polley
Practical Process Integration Retrofit Part 2. Remaining Problem Analysis & Driving Force Plot G.T.Polley The Cross-Pinch Method is not the only tool derived during the initial stages of the application of Pinch Technology to retrofit projects. Other significant developments were Remaining...

Successful Implementation of Advanced Process Control in Cryogenic Plants

Apr 3, 2012
Rafael Aguilar
Successful Implementation of Advanced Process Control in Cryogenic Plants. Tom Lyndrup and Greg Rogers, Enterprise Products LLC, Houston, Texas. Rafael Aguilar and Duane Morningred, Honeywell Process Solutions, Houston, TX, and Camarillo, CA, USA. Paper to be presented at the 2012 AIChE Spring...

Cost Effectiveness of 2-Row Membrane System for FLNG

Apr 3, 2012
Herbert Moon
One of the most critical issues in engineering and design of FLNG is to reduce top side weight along with its load distribution to the sub-structure. Concentrated top side loads will result in an increase in hull structure costs. The developed 2-row containment system allows flexibility of top side...

Increasing Propane Desuperheater and Condenser Reliability in PT Badak NGL

Apr 3, 2012
Mohammad Arief Setiawan
PT Badak NGL is the operator for natural gas liquefaction at Badak LNG Plant, Bontang, Indonesia. At present PT Badak NGL has 8 Trains. The mode for liquefaction is using the APCI process license. At the first step, Feed Gas is pre-cooled with propane refrigerant, followed by liquefaction process...

Practical Process Integration Retrofit Part 4. Handling Large Projects

Apr 3, 2012
G. T. Polley
Practical Process Integration Retrofit Part 4. Dealing with Large Projects G.T.Polley The Cross-Pinch Method is suitable for use in identify retrofits when the number of streams is small (the example used in the demonstration of this method had seven streams, Polley [2011]). However, Pinch...

Process Safety - Management or Leadership?

Apr 3, 2012
Charles J. King
Process Safety Management is often presented as technically complex, requiring a large staff of engineers and specialists with an array of tools and techniques that appear to grow in intricacy and sophistication year by year. Large companies are generally well positioned to operate in this arena –...

Industrial Experience in Handling Cleaning of Crude Refinery Preheat Trains

Apr 2, 2012
Simon J. Pugh
Industrial Experience in Handling Cleaning of Crude Refinery Preheat Trains 1,2 Ishiyama E.M., 1 Pugh S.J. and 2 Wilson D.I. 1 IHS ESDU, Houndsditch, London EC3A 7BX, UK 2 Department of Chemical Engineering and Biotechnology, University of Cambridge, New Museums Site, Cambridge CB2 3RA, UK Abstract...

Advanced Control of Multiple Sulfur Recovery Units

Apr 2, 2012
Darwin Logerot
Sulfur Recovery in a Refinery entails collecting sour vent gases (containing H2S) from a number of sources, including Hydrotreaters, Hydrocrackers, Crude Units, and others, then converting the H2S to a more useable form such as sulfuric acid or elemental sulfur. The feed rates and compositions to...

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