Now showing items 31-40 of 248
Vapor-liquid equilibria in the system hydrogen-nitrogen-carbon monoxide
Vapor-liquid equilibrium compositions for the system hydrogen-nitrogen-carbon monoxide were determined at -310°F, and -280°F and -240°F from 300 psig to the critical. PVT data for hydrogen were fitted to the ...
Effects of the decay of sulfur-35 on some electrical properties of cadmium sulfide semiconducting films
The vacuum behavior of radioactive and non-radioactive semiconducting films of CdS has been studied as a function of time in order to determine the effect of radioactive doping. Radioactive films containing S35 were made ...
Low temperature vapor-liquid equilibrium in light hydrocarbon mixtures: Methane-ethane-propane system
Experimental equilibrium data have been determined for 175 mixtures of methane, ethane, and propane. The investigation included temperatures from 50°F to -200°F and pressures up to the critical. A vapor recycle ...
A study of alumina silicon fluoride combinations as hydrocarbon conversion catalysts
The purpose of this work was to study the influence of certain variables in the preparation of an alumina-silicon-fluoride complex on its behavior as a cracking catalyst.
SOME HYDROGENATION, OXIDATION, AND ISOMERIZATION REACTIONS OVER ZIRCONIUM-DIOXIDE CATALYST
The mechanisms and selectivities of several hydrogenation, isomerization, and partial oxidation reactions that occur over a zirconia catalyst were investigated. The thermal stability of the catalyst in air and in vacuum ...
The compressibility factors and second virial coefficients for helium-nitrogen mixtures at low temperature and high pressure
The Burnett method was used to determine the volumetric behavior of helium, nitrogen, and six evenly spaced helium-nitrogen mixtures at low temperature and high pressure. Compressibility isotherms were determined for both ...
PHYSICAL CHARACTERIZATION AND HYDROISOMERIZATION ACTIVITY OF A PLATINUM-RHENIUM/PILLARED CLAY CATALYST
Montmorillonite is a clay mineral which when exchanged with hydroxyaluminum oligomers produces a pillared clay mineral. On calcination at 500(DEGREES)C the pillars are fixed, and a microporous structure having good thermal ...
FUNDAMENTAL STUDIES ON GAS-SOLID REACTIONS: PORE STRUCTURE AND REACTIVITY OF COAL CHARS
The combustion and gasification of five char samples was investigated. Four chars were produced by pyrolysis and demineralization of two coals, a Texas lignite and Illinois #6. The fifth sample was a commercially obtained ...
THE EFFECT OF BIOREACTOR CONDITIONS ON ATP SUPPLY AND DEMAND, ELECTRON FLOW, AND PRODUCT FORMATION IN THE ACETONE/BUTANOL FERMENTATION
The availability and demand of biosynthetic energy (ATP) and reducing electrons (NADH, reduced ferredoxin) have been found to be crucial in the regulation of solvent production in steady state continuous cultures of ...
A STUDY OF THE PAIR DISTRIBUTION FUNCTIONS OF MIXTURES OF IDEALIZED MOLECULES USING MOLECULAR SIMULATION
The partial pair distribution functions describe the average conformation of groups of molecules in a mixture. The functions are used in the conformal solution theories of Leland et al, who assume that the thermodynamic ...