Now showing items 31-40 of 262
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 ...
Condensing heat transfer within horizontal tubes
The purpose of this investigation was to study the effect of vapor velocity, temperature difference and fluid properties upon the heat transfer coefficient of a vapor condensing within a horizontal tube. Condensing heat ...
Understanding Structure-Property Relationships for Palladium-Gold Nanoparticles as Colloidal Catalysts
Bimetallic palladium-gold (PdAu) nanoparticle (NP) catalysts have been demonstrated for the better catalytic performance than monometallic Pd catalysts in various reactions; however, the enhancement mechanism is not ...
The constitution of silica gel
Abstract Not Available.
Interplay of micro-scale flow and fluid micro/nanostructure: Solutions of DNA and suspensions of single walled carbon nanotubes
The dynamics of dilute solutions of DNA flowing in a scaled clown roll-knife free surface coating flow are investigated on multiple scales. The flow is generated between a rotating roll and a stationary glass knife. Extension ...