the paper presents results of experimental studies on the methane and propane ignition process in various volumetric compositions of oxidizers heated to temperatures higher than ignition point of analyzed fuels (htac conditions–high temperature air combustion conditions). the increment of temperature dt and the ignition delay time tig are parameters characterizing the process of ignition under ...

High-surface-area mesoporous CexZr1-xO2 materials synthesized through a surfactant-assisted approach of nanocrystalline particle assembly are utilized as promising support for VOx-based catalysts. The catalytic properties the resultant VOx/CexZr1-xO2 nanocatalysts evaluated by oxidative dehydrogenation propane using microreactor-GC system. It is indicated that catalyst particles ...

A new kind of electrochemical catalyst based on a Pt porous catalyst film deposited on a β″-Al2O3 ceramic Ag(+) conductor was developed and evaluated during propane oxidation. It was observed that, upon anodic polarization, the rate of propane combustion was significantly electropromoted up to 400%. Moreover, for the first time, exponential increase of the catalytic rate was evidenced during ga...

We have controlled the relative phase between two successively generated coherent anti-Stokes Raman-scattering signals with a homemade phase-shifting unit, the thickness of which could be automatically adjusted as the wavelength of Stokes beam scanned in a wide spectral range. With this technique we have recovered the Q-branch spectrum of carbon monoxide distorted by a large nonresonant contrib...

The asymmetric unit of the title compound, [Co(NCS)(2)(C(13)H(14)N(2))(CH(3)OH)(2)], consists of one cobalt(II) cation located on a center of inversion, one half of a 1,3-bis-(pyridin-4-yl)propane ligand located on a twofold rotation axis, as well as one thio-cyanate anion and one methanol mol-ecule in general positions. The cobalt(II) cation is coordinated by two terminal N-bonded thio-cyanate...

The Catofin propane process is an emerging industrial process for propylene production through dehydrogenation of propane. It is composed of multiple adiabatic fixed-bed reactors which undergo cyclic operations where propane dehydrogenation and catalyst regeneration alternate over roughly ten minute period for each. One of the major concerns in the operation of the Catofin process is maintainin...

The use of pure heavy hydrocarbons like propane or isobutane has some advantages for drift chaders that measure the specific ionisation for particle identification. With a prototype of the ARGUS drift chamber various gases were tested with a 3 GeV/c electron beam. We found a dE/dx resolution for propane of Fwhm= 10.4% and for isobutane Fwhm = 9.9X, by a factor of + 1.6 better than that for argo...

The deployment of next-generation renewable biofuels can be enhanced by improving their compatibility with the current infrastructure for transportation, storage and utilization. Propane, the bulk component of liquid petroleum gas, is an appealing target as it already has a global market. In addition, it is a gas under standard conditions, but can easily be liquefied. This allows the fuel to im...

Propane/propene separation by cryogenic distillation is one of the most energy and cost intensive industrial processes. Adsorptive separation is a more energy-efficient alternative. Three isostructural zinc imidazolate zeolitic framework materials are found, for the first time, to be very promising in the separation of propene and propane based on their different diffusion rates. Fine-tuning of...