Petrochemicals

Full Potential Conversion of Vacuum Resids

Mar 23, 2010
Irv Wiehe
Present vacuum resid conversion processes, either coking or hydroconversion, are far from achieving their maximum conversion. With the remaining petroleum resources, on average, having a greater fraction of the vacuum resid fraction, it is imperative that new resid conversion processes or schemes...

Furnace Safe Park DCS Tool

Mar 23, 2010
Bryan McVicker
Properly managing the shutdown or “safe parking” of multiple steam-cracking furnaces during a plant-wide upset can be challenging. Alarm flood and multiple competing demands on operators are characteristics of such situations. The ExxonMobil Beaumont olefins plant has created a DCS interface to...

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-...

Catastrophic Failure of a Dissimilar Metal Weld in a High Pressure Steam Venturi

Mar 23, 2010
Carl G. Matherne
In mid-2009 at the BASF FINA Petrochemical L.P. Steam Cracker in Port Arthur, Texas, a venturi-type flow meter in super-high-pressure steam service ruptured catastrophically, resulting in a major release of pressure and trip of the plant. Initially a steam leak was observed at the flow meter, and...

Integrated Refinery Cracker, the New Paradigm

Mar 23, 2010
Osman Aboul-Nasr
The new trends in crackers are higher capacity and heavier feedstock. This makes the integration between refineries and crackers significantly more beneficial. The importance of integration becomes a more paramount issue. Since several new refineries and cracker / derivatives complexes are...

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...

Fuel Performance Parameters for Marine Engines

Mar 23, 2010
The regulations for sulfur reduction in marine fuels are impacting the whole spectrum beginning from the production of the fuel in the refineries to the end use in Marine diesel engines. To start with, from 1/1/2010, the European Union regulations call for use of fuel with a maximum of 0.1% sulfur...

Current Methods of Measurement of NO, NO2 and NH3

Mar 23, 2010
Dwight Hines
The measurements of NO, NO2 and NH3 have been a challenge for analytical chemists for many years. This paper will deal primarily with new advances in technology for on-line NO and NO2 analysis using the paper tape technology from CI Analytics. The evolution of the instrument from CI Analytics will...

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