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Showing 1 to 20 of 64 for “"Propene"”.
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The oligomerization of propene over cobalt catalysts
… supported cobalt catalysts for high pressure propene oligomerization. This work was carried out as part of a larger research effort to upgrade light olefins to liquid fuels in the distillate range. The supports investigated included activated carbon, alumina, silica alumina, synthetic mica …
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The oligomerization of propene over nickel synthetic mica-montmorillonite
The catalytic oligomerization of propene to liquid fuels using synthetic mica montmorillonite (SMM) as well as the effect of incorporating nickel into the lattice and nickel, cobalt and zinc into the interlayer spaces was investigated. NiSMM is more active for propene oligomerization than SMM, …
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The oligomerisation of propene over nickel oxide silica alumina
… of a nickel oxide sil ica alumina catalyst. The propene oligomerisation activity and the selectivity of the catalysts prepared by homogeneous decomposition deposition (HDD) were investigated and compared with nickel oxide silica alumina catalysts prepared by the techniQues of impregnation (IMP) …
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Transient analysis of propene partial oxidation over iron antimony oxide
The main purpose of this work was to investigate propene partial oxidation at steady state and transient mode over an iron antimonate catalyst of Sb/Fe=1.5: I and to formulate a transient kinetic simulation for the reaction.
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Experimental vapor-liquid equilibria of propyne with propane, propene and propadiene
<p>"Vapor pressures for pure propane, pure propene, impure propadiene and pure propyne and 19 binary mixtures of propane, propene, and propadiene with propyne are reported at -20, 5, 30, 55 and 80° C. An equation of state utilizing pure component saturated vapor and liquid densities is used to …
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Propene oligomerization over steam dealuminated and boron and phospherous modified ZSM-5
… to the linearity of the liquid product of propene oligomerization. Boron was incorporated into the zeolite framework by inclusion in the synthesis gel. Boralite catalysts made in this way and containing very low Al contents had only weak acidity as was evident from only one, low temperature …
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The partial oxidation of propene to acrolein over single-crystal Cu₂O
The partial oxidation of propene (CH₂=CHCH3) to acrolein (CH₂=CHCHO) has been studied over Cu₂0(100) and (111) single crystal surfaces. Propene adsorption under ultrahigh vacuum conditions yields no significant oxidation products, but the propene desorption temperatures are sensitive to the …
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The effect of oxygenates on the oligomerisation of propene over zeolite ZSM-5
The oligomerisation of alkenes such as propene and butene represents an important route to the production of environmentally clean transportation fuels. When these olefins originate from Fischer-Tropsch product streams they are often contaminated with small amounts of oxygenates such as acetic …
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The deactivation of Zeolite-Y and mordenite during hexane cracking and propene oligomerisation
… cracking at 1 atmosphere and high pressure propene oligomerisation provided two different reaction types. The transport properties of the catalysts were compared by measuring adsorption and diffusion using the GC technique with ancillary information obtained from ammonia TPD, mercury …
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Ammoxidation of propene over iron promoted bismuth molybdate for the production of acrylonitrile
… The influence of iron in the ammoxidation of propene for the formation of an acrylonitrile is to be investigated.
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The development of a model for high pressure propene oligomerisation over H-ZSM-5
… mathematical model for high pressure propene oligomerisation over H-ZSM-5. To this end, this introductory chapter first revises the characteristics and applications of catalysts which have been shown to be active for oligomerisation. This is further split into acid catalysts, …
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Methanol conversion to olefins and propene oligomerization over modified SAPO-34 and dealuminated mordenite
… for methanol conversion to light olefins and propene oligomerization to a distillate type product, respectively. In this study, these catalysts were modified in various ways and the effect of these modifications on the activity and selectivity of the above two reactions investigated. SAP0-34, …
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A Matrix Isolation Spectroscopic Investigation Into the Reaction Products of Vanadium Metal Atoms With Propene
… products of vanadium metal atom reactions with propene and some propene isotopomers (propene-d6 and propene-3,3,3-d3) are investigated using FT-IR matrix isolation. The major product from the condensation of V atoms with propene at elevated mole ratios is found to be propane (C3H8), the …
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Thermochemistry reaction paths and oxidation kinetics on ketonyl and aldehydic nitrogen oxides, propene and isooctane: a theoretical study
… methods. Kinetic modeling for OH addition to propene and subsequent O_2 association to the hydroxyl-propyl radical adduct shows that significant forward reaction goes to regenerate OH radicals over the range of temperature and pressure studied. Recycle of OH from the decomposition of the …
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Synthesis, characterization and high pressure propene oligomerization over heteropoly acids, SAPO-11 molecular sieves and MeAPSO-11 molecular sieves
… proposed to be active for the oligomerization of propene to high quality distillate fuels. In this study these catalysts have been synthesized, characterized, modified and screened for the oligomerization of propene to distillate fuels. Heteropoly acids consist of high molecular weight …
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Improvement of propylene yield via butene metathesis
… interest in finding ways to produce on-purpose propene, due to the significant predicted propene growth in the next few years without the concomitant growth in the ethene demand, One of the technologies available is 1-butene metathesis, which describes a one-step process where isomerisation of …
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In situ ¹³C NMR monitoring of the dehydration of 2-propanol over H-ZSM-5
… a cyclopropyl carbenium ion intermediate, 2) propene oligomerizes on the catalyst and reaches a steady state concentration before propene is desorbed, and 3) the 2-propanol flowing over the catalyst does not react with the oligomerized propene.
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Partial oxidation of α-olefins over iron antimony oxide catalysts
… selective catalyst for the partial oxidation of propene to acrolein and the oxidative dehydrogenation of 1-butene to 1,3- butadiene. It has become the preferred catalyst for the industrial acrolein formation from propene. The main purpose of this work was to investigate the influence of catalyst …
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Spectroscopic Studies of Small Molecule Adsorption and Oxidation on TiO2-Supported Coinage Metals and Zr6-based Metal-Organic Frameworks
… Specifically, the mechanistic details of propene epoxidation on the surface of nanoparticulate Au supported on TiO2 and dimethyl chlorophosphate (DMCP) decomposition on the surface of TiO2 aerogel-supported Cu nanoparticles were investigated. In situ infrared spectroscopy illustrates that …
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