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Flow of Solids in Bins, Hoppers, Chutes and Feeders

Instructor-led (classroom) Course
Gain a strong, fundamental understanding of bulk solids and bulk solid handling equipment and their behavior, along with the general principles and practical applications of solids flow.

Chem Economics: ACC Releases Portfolio of Specialty Chemicals Indexes

September
2012
Chem Economics
T. Kevin Swift
The American Chemistry Council (ACC) has launched a new set of indexes covering nearly 30 segments of the U.S. specialty chemicals market. (The first, which dealt with plastic additives, was discussed in the July issue, p. 13.) This is the first set...
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Reliable Retention of Molecular Sieve Beds

Mar 22, 2010
Robert Norell
Reliable operation of an Olefin gas/liquid dehydrator requires careful attention to the integrity of the grid supporting the molecular sieve. Problems with retention of the sieve can stem from many points in the design, fabrication, and installation process for these assemblies. Two case studies...

Does Your SIS System Still Comply with Your LOPA and SRS?

Mar 22, 2010
It is often assumed that a SIS system forever meets all the SIS requirements of the project Layers of Protection Analysis (LOPA) and Safety System Requirements (SRS). In reviewing a number of installed refinery SIS systems with respect to maintenance issues and operational issues a pattern starts...

An Operator Training Simulator (OTS) for a SUPERFLEX(TM) Unit

Mar 22, 2010
Ravi Guddeti
An Operator Training Simulator (OTS) of a new SUPERFLEXTM unit has been designed and built to provide highly realistic process and operations training to operators of a first of a kind petrochemicals plant. The OTS, which was delivered to Sasol in 2005, and otherwise called the Sasol Superflex OTS...

Advanced Materials for Radiant Coils

Mar 22, 2010
Dr. Deitlinde Jakobi
Since radiant coils operate under severe conditions of carburization, oxidation and erosion tube material selection plays an important role. Schmidt + Clemens and the R&D-institute HDZ have developed a new bench-scale unit to simulate high temperature corrosion of alloys in petrochemical plants...

Oxygen/Combustible Safeguards in Low Nox Fired Heaters

Mar 22, 2010
Edward M. Marszal
Refineries have been installing low NOx equipment on their fired heaters in response to tighter environmental regulation. Low NOx burners minimize air ingress in locations other than directly at the burner, and internally recirculate flue gas in the heater firebox. They operate on much narrower...

Loop Tuning Basics

Mar 22, 2010
James Beall
There are many methods to tune PID controllers. This presentation provides a tutorial on tuning PID process controllers using Internal Model Control (IMC) concepts. This tuning methodology allows the user to “coordinate” the response of related controllers to optimize the process performance rather...

Principal Components Analysis for Early Events Detection in Process Operations

Mar 22, 2010
Principal Components Analysis (PCA) is a statistical technique that aims at reducing the problem dimensionality by progressively eliminating redundancy in data. The method has found extensive use in exploratory data analysis as it aids visualization of complex data. Interestingly, the method is...

Cracked Gas Dryer Tutorial (Part 2)

Mar 22, 2010
Bruno De Jonckheere
This tutorial will begin with a brief introduction to molecular sieves followed by a description of the process, covering overall operation of the charge gas dryer including adsorption and regeneration steps. Key design considerations will be discussed along with optimization and troubleshooting...

Revamp Fired Heater to Maximize Thermal Efficiency

Mar 22, 2010
Ashutosh Garg
Fired heaters are in the refining and petroleum industry. In the current scenario, it is important to maximize fired heater efficiency to the maximum achievable. Revamping is a cost effective way to maximize fired heater efficiency: FIS has carried out several heater revamp projects in the past 5...

Enterprise Inventory Management in Volatile Markets

Mar 22, 2010
Craig Acuff, Simon Rogers
Hydrocarbon and other commodity prices are increasingly volatile due to factors which include speculation, reduced inventory and a lack of spare capacity. Energy prices are likely to trend higher as we replace depleted crude oil and natural gas fields and reduce emissions. In this environment...

New Type of Cracking Furnace Radiant Coil Design

Mar 22, 2010
Johan P. van Der Eijk
This paper presents the economical benefits for a new radiant coil design which improves the performance of the thermal cracking furnace. The main drivers for this design are: increase of selectivity, capacity, run length, radiant coil lifetime or a combination of these. Cracking furnaces are the...

Cracked Gas Dryer Survey

Mar 22, 2010
Bill O'Brien
An electronic internet survey was distributed to United States and European ethylene producers. The goal of the survey was to document vessel design and loading, as well as, typical operations and practices.

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