Petrochemicals

Cost Effectiveness of 2-Row Membrane System for FLNG

Apr 3, 2012
Herbert Moon
One of the most critical issues in engineering and design of FLNG is to reduce top side weight along with its load distribution to the sub-structure. Concentrated top side loads will result in an increase in hull structure costs. The developed 2-row containment system allows flexibility of top side...

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...

Waste Heat Recovery Considerations in LNG Plants

Apr 2, 2012
Douglas Wiles
WASTE HEAT RECOVERY CONSIDERATIONS IN LNG PLANTS ABSTRACT DOUGLAS WILES, RYAN HOLLENBACH & STANLEY KWAN Thermal integration in an LNG plant improves its overall thermal efficiency. Thermally integrated plants tend to have lower operating costs and reduced environmental emissions including, CO,...

Tutorial: The Chemistry of Refinery Fouling

Apr 2, 2012
Irv Wiehe
The chemistry of refinery fouling is well enough understood to mitigate nearly all fouling. The key information required are the location of the foulant, elemental analysis of the foulant, and identification of precursors in the oil flowing through the fouled unit. Most organic fouling is caused by...

Industrial Experience in Handling Cleaning of Crude Refinery Preheat Trains

Apr 2, 2012
Simon J. Pugh
Industrial Experience in Handling Cleaning of Crude Refinery Preheat Trains 1,2 Ishiyama E.M., 1 Pugh S.J. and 2 Wilson D.I. 1 IHS ESDU, Houndsditch, London EC3A 7BX, UK 2 Department of Chemical Engineering and Biotechnology, University of Cambridge, New Museums Site, Cambridge CB2 3RA, UK Abstract...

Fate of Ammonia in Refinery Amine Systems

Apr 2, 2012
Nathan A. Hatcher
Fate of Ammonia in Refinery Amine Systems Ralph H. Weiland, Nathan A. Hatcher & R. Scott Alvis Optimized Gas Treating, Inc. Sugar Land, TX ABSTRACT Ammonia ingress and accumulation in refinery and bio-gas amine systems is not a new problem. However, increasing utilization of advantaged crudes...

Asphaltene Instability Measured by Small-Angle Neutron Scattering

Oct 19, 2011
Michael P. Hoepfner
Asphaltenes are defined as the petroleum fraction that precipitates with the addition of a normal alkane; however, it was only recently discovered that there is a strong time-dependency for precipitation in oil/n-alkane mixtures [1]. It was found that at low precipitant concentrations, asphaltenes...

Anisole and Guaiacol Deoxygenation Over Pt/Sn On Monolith Catalyst Supports

Oct 17, 2011
Miguel Angel Gonzalez Borja
Upgrading of pyrolysis oil vapors requires a catalytic reactor able to treat high reactant flow rates without generating a large pressure drop. Therefore, monolithic catalysts appear as good candidates for this purpose. In this contribution, low-surface-area Inconel monoliths were coated with in-...

Energy Efficiency of Battery Systems with Forced Convection Between Electrodes

Oct 17, 2011
Sun Ung Kim
The energy efficiency of an alkaline battery system with forced convective flow between the electrodes has been investigated. Rechargeable alkaline batteries, which depend on the reaction between zinc and manganese dioxide (Zn/MnO 2 ), have been widely used because of their excellent properties...

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