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

Ethylene Unit Hydrocarbon Release and Fire, Sunoco Marcus Hook, PA Refinery

Mar 23, 2010
Arthur Jensen
At approximately 10:15 p.m. on Sunday, May 17, 2009, there was a sudden and large hydrocarbon release from a main process pipe in the Ethylene Unit at the Sunoco Marcus Hook, Pennsylvania Refinery. The release found an ignition source at an operating process furnace within 2 seconds, resulting in a...

Options for Mercury Removal in Ethylene Plants

Mar 23, 2010
Jayant Gorawara
Ethylene producers have faced the challenge of feedstock contaminants for decades. However, with current industry transitions and surplus capacity, the low cost producer will have a real advantage in terms of survivability. The ability to leverage opportunities to improve the cost position on...

Technologies for Enhancing Refinery Gas Value

Mar 23, 2010
The trend of processing heavy and sour crude is resulting in 'fuel long' refineries which seek to export energy in the form of refinery fuel gas or are looking for other ways to extract value from the fuel gas system. There are common solutions that either are applicable to a few selected high-...

CFD Simulation of Vapor Dispersion from LNG Jetting and Flashing Releases

Mar 23, 2010
Filippo Gavelli
The analysis of LNG hazards, particularly in the context of onshore facility siting, has historically focused on the consequences of atmospheric pressure releases, such as would occur in the event of a storage tank breach. Recently, however, the issue of flammable vapor clouds formed by high-...

Possible Solutions for Reducing NOx and SOx Emissions from Large Cargo Ships

Mar 23, 2010
Reggie Zhan
In an attempt to curb air pollution from the shipping industry, the U.S. Environmental Protection Agency (EPA) proposed two new sets of standards in July 2009, which requires ships that have compression-ignition engines with a capacity of 30 liters or more per cylinder in U.S. waters to cut...

Vapor-Liquid Equilibrium (VLE) Study of CO2 with MEA and Ammonia Solvents

Mar 23, 2010
Donald Johnson
In the carbon capture and sequestration (CCS )scenario, vapor liquid equilibrium (VLE) curves represent the theoretical relationship between local gaseous CO2 vapor pressure and the respective carbon loading in solution for a given operating temperature. It determines the maximum carbon content in...

Cooldown of Large Pipes During the Commissioning Phase of Cryogenic Facilities

Mar 23, 2010
Harri Kytomaa
Cryogenic facilities such as LNG receiving terminals operate at temperatures as low as -260F. During day to day operations, the temperature in the pipes of the facility is relatively uniform, leading to low material stresses in the pipes. However, during exceptional operations, such as the initial...

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