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Estimation of Gas Composition and Cage Occupancies in CH4-C2H6 Hydrates by CP-MAS 13C NMR Technique
Gas hydrate Natural gas Gas composition Cage occupancy 13C NMR
2009/7/28
CP-MAS 13C NMR measurements were carried out on mixed gas hydrates containing CH4-C2H6. The changes in NMR chemical shift values for CH4 and C2H6 clearly corresponded to the structural changes in the...
Application of Genetic Algorithm to Optimize the Composition of Cu-Zn-Al-Sc Oxide Catalyst for Methanol Synthesis
Genetic algorithm Catalyst optimization Combinatorial chemistry
2009/7/24
A genetic algorithm (GA), which is based on the theory of biological evolution, was applied to optimize the composition of Cu-Zn-Al-Sc oxide catalyst for methanol synthesis to identify high performan...
Reservoir evaluation using carbon isotope composition of gas
gas carbon isotope origin maturity migration biodegradation
2009/4/20
Carbon isotope compositions of methane, ethane and propane, and hydrocarbon ratios in gas samples provide information of their origin (microbial vs. thermogenic), maturity of thermogenic component, c...
Composition and properties of solid alkanes extracted from a waxy petroleum fluids
Crude oil long residue alkanes thermal properties urea adduction flow behaviour
2010/8/11
Assam crude oil long residue (370oC+) is highly waxy/aromatic in nature associated with high pour point (51oC). The solid alkane components of this fraction extracted through urea adduction were analy...