Smart Manufacturing: The Next Revolution
Michelle Bryner
Moving to the next generation of production can help the U.S. keep its competitive edge.
Equipment
Using Process Flowsheets as Communication Tools
Graham Nasby
Piping and instrumentation diagrams (P&IDs), process flow diagrams (PFDs), and block flow diagrams (BFDs) are essential tools for documenting processes and promoting interdisciplinary understanding and communication.
Solid-Liquid Separation: A Guide to Centrifuge Selection
Tom Patnaik
Centrifugation is a necessary step in many pharmaceutical and chemical production processes. These guidelines will help chemical engineers better understand the process of centrifuge selection.
Selecting Tube Inserts for Shell-and-Tube Heat Exchangers
Richard L. Shilling, P.E.
A tube insert modifies flow stream characteristics to enhance heat transfer. Here’s how to choose the optimal insert to meet process requirements.
Galvanic Corrosion Between Dissimilar Metals
Apr 5, 2012
Richard Rolke
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 equipment life, the decision was made to replace the tube bundle and upgrade the metallurgy of the tubes from admiralty brass to Duplex stainless steel...
Appropriate Placement of Compressors and Expanders
Apr 4, 2012
Truls Gundersen
The term “Appropriate Placement” was introduced in Pinch Analysis during the 1980s to indicate how special unit operations should be correctly integrated with the background process to ensure maximum energy savings. Pinch Analysis has provided guidelines for the design of heat exchanger networks as...
Anti-Surge Methods for the Base Load LNG Plant Propane Compressor
Apr 4, 2012
J. C. Kuo
The propane compressor represents a significant capital investment and operating expense of a LNG plant, and is an essential component in providing revenue streams of the plant. Therefore, operation and protection of the propane compressor are critical issues in the plant design and operation. The...
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...
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...
Control and Optimization of Refrigeration Compressors Using Process Model Based Control
Apr 2, 2012
Robert Moore
Optimal control of refrigeration compressors is important during each phase of ethylene operations; startup, steady state, and shutdown. At steady state, optimal control of the refrigeration compressors can help maximize production rates and minimize horsepower. During startup and shutdown, optimal...
Current Manufacturing Processes Utilized to Improve Equipment Reliability and Stability
Apr 2, 2012
Paolo Mola
Utilizing high technology techniques in the manufacturing of compressors supplied to the ethylene market provides an operational advantage compared to its traditional methods. This article provides a historical perspective on the manufacturing evolution in the petrochemical market segment from very...
Installing a Charge Gas Compressor Booster
Apr 2, 2012
Giorgio Franceschetti
The Braskem Ethylene Southeast Plant expansion study from 500 MTA to 700 MTA recommended that the charge gas compressor turbine and the 1 st and 2 nd stages should be replaced. Due to a series of technical and logistical constraints, was decided to install a booster compressor upstream the first...
Useful Tips for Optimal Fired Heater Performance
Apr 2, 2012
Nikki Bishop
Advanced Process Control Strategies for Process Fired Heaters Fired Heaters are used extensively throughout refineries for heating, vaporization and thermal cracking of various process fluids. These heaters are essential for refinery operation. The main objectives for fired heater optimization are...
Pressure Relief Valve Sizing Equations Basis
AIChE Webinar
Mar 14, 2012
Aubry Shackelford
Engineers responsible for the sizing of pressure relief valves, will get a more in-depth understanding of the mathematical basis for the sizing equations.
Select the Best Model for Two-Phase Relief Sizing
Ron Darby, Paul R. Meiller, & Jarad R. Stockton , Ronald Darby
A variety of methods exist for sizing valves, but not all give the best predictions for certain conditions. RonDarby-PaulR.Meiller-JaradR.Stockton-
Pages
