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Conference Presentations - 2010 AIChE Spring Meeting and Global Congress on Process Safety

Advances in Renewable Jet Technology

Mar 22, 2010
Use of aviation fuel currently corresponds to 2-3% of the total fossil fuels used worldwide, or 13% of fossil fuel used in transportation fuel. Aviation fuel use is the second biggest sector after road transportation, which consumes 80 percent. Further, the aviation industry is expecting to grow at...

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...

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...

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.

Novel Polymer Membrane Process for Pre-Combustion CO2 Capture from Coal-Fired Syngas

Mar 22, 2010
Timothy C. Merkel
Gasification of coal – a low-cost and abundant domestic feedstock – and subsequent conversion to hydrogen and energy with simultaneous CO2 capture can improve national energy security in an environmentally responsible manner. To fulfill the promise of clean energy production through gasification of...

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...

Improved Energy Efficiency in CDUs Through Fouling Control

Mar 22, 2010
Jimmy D. Kumana
Crude oil distillation accounts for a large fraction of the energy used in oil refining. Crude oil contains a variety of substances which tend to deposit as fouling layers in heat exchangers, and this results in decreased energy recovery and requires increased energy input to the furnace. CDU pre-...

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