notes on ROLE OF CATALYSIS IN PETROLEUM REFORMING?
349730
Just likel in cooking, oil is heated up and most products are separated by cooling off at different temperatures. Before being separated, molecules are "busted up" by using chemical catalysts that assist in breaking up chemical bonds. Hence "cat cracker".
450334
Okay, cool!\nThe diagram is set up so that on the horizontal x-axis is the "reaction coordinate," which is basically just time as the reaction proceeds.  The vertical y-axis is energy.  \n\nThe potential energy of the reactants is where the graph curve starts, touching the y-axis.  The potential energy value is the y-value at this location.  \n\nWhere the graph curve levels off at the end is the products, so the potential energy of the products is the y-value where the curve levels off.  \n\nThe activation energy is how much energy had to be added into the system to get to the activated complex, located at the peak of the diagram's curve.  Take the y-value at the top of the curve and subtract from the the potential energy of the reactants.  \n\nThe heat of reaction is the difference in the potential energies of the products and reactants.  Take the potential energy of the products, and subtract from that the energy of the reactants.  \n\nIf a catalyst were added, the potential energy of the products and reactants remain unchanged, but the activation energy is less, so you draw a curve that starts in the same place and ends in the same place as the original diagram, but your curve just won't go up as high.  The hill for a catalyst is less steep.
781262
Insufficient oxygen available for complete combustion.  The preferred reaction is of the hydrogen portion of the fuel compound with O2, leaving most or some of the carbon uncombined.  You apparently are referring to gas burners but the same is true in oil lamps.  \n\nhttp://www.lampguild.org/Default.html?Defaulttext.shtml&1
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1: will release carbon dioxide gas from carbonates\n\n2: will produce hydrogen when reacted with metals such as iron, zinc etc.
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Hope this helps:\n\nhttp://jchemed.chem.wisc.edu/Journal/Issues/1997/Feb/abs210.html
592744
a) Require catalytic converters on auto & truck engines & factory smoke stacks.\n\n    b) Require that all chemical wastes be neutralized before disposal.\n\n    c) Convert to hydrogen fuels, solar or wind for energy.
911003
As Petroleum processing is nothing but refining Crude Oil in stages,that is mostly concerned with Distillation.Chemistry plays its main role providing details like boiling point,density,viscosity and other physical properties of the individual compounds which is extracted separately at each level of distillation column, though the process is chemical engineering.
946245
Here you are (nice circles and atoms and stuff):\n\nhttp://www.uwgb.edu/dutchs/PETROLGY/ScaleAtomsCsRn.HTM
800108
Me too. Good luck from fellow chemistry graduate :) Where you study? I studied at Edinburgh University.Many jobs for petroleum chemistry in Scotland, since we are near the pipeline.I live near Mossmoran chemical plant. Most courses are here in surrounding university.You need to have 2.2 for requirements for most of them.Check the usual things in the links I have below. I would recommend Edinburgh for great city and wonderful night life, and fun festival,lots of events. The best link is Heriot Watt university, which is great. I would recommend there. its one of the most renowned places for petroleum. It specialises in it.I know friends who studied there and many went abroad to Saudia, or the Rigs. Saudia is okay place, except for some strange rules ;)  Good luck.
297404
reactants...catalysts help a reaction by speeding it up (usually)...products are the end result of reactions...protons just aren't the right answer
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Catalyst works by lowering down the activation energy of the reaction. Activation energy is the minimum amount of energy which the reactants should have in order to react & result into products. The catalyt reacts with the reactants to form INTERMIDIATE products which require lower activation energy & easily result into products.The catalyst usually have large surface areas so the reactants are easily ADSORBED on its surface.The bonds between the reactant molecules break & form new products which are realeased from the catalust's surface.
377199
B.  A catalyst speeds up the reaction, as said in the question.  It's mostly just narrowing it down.  Obviously it provides a lower energy pathway if it speeds the reaction up, so it's not C or D.  It's not A, obviously.  Why would you want something that speeds the back reaction from products to reactants up? Well, unless specifically looking for it, I guess.   \nSo, B.
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1. FOLDABLE DIVING FINS - Croatia\n\n2. MOLTEN CARBONATE FUEL CELL ADVANCED TECHNOLOGY (MCFC-AS) - Germany\n\n3. VANADYL-ZEOLITE CATALYST FOR POLYMERIZATION OF STYRENE - Iran
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There are many ways to generate hydrogen outside electrolysis. Steam reforming, methane reforming, propane reforming, etc... Coastal countries may appear to have an advantage but you cannot have a fair comparison of supply and demand.  Consider the following:\n1. Many, many, many countries have access to coastal water, thus competition would be extremely fierce\n2. Countries will be more than self-sufficient and may "sell" excess product at a very low cost.\n3. Rivers, streams, rainwater etc... is available to more countries in the world than petroleum to many. \n \nI would not worry about it, depleting the sea is way way way way off, and besides, using H2 as fuel means that emission is....water. And no, the roads are not going to be slippery from algae (sorry, but I have heard a statement like that in the past)\n\nEver considered that we may come up with the technology to recover and re-use the water emission? Thus less filling up at your local Shell H2 station? \n\nI hope I was able to answer it for you in a objective manner
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http://www.gaslink.org/resources_gasconvertiontable.aspx\nhttp://www.worldenergy.org/wec-geis/publications/reports/ser/conv.asp\nhttp://www.ex.ac.uk/~TWDavies/energy_conversion/calorific%20values%20of%20fuels.htm\nHope this helps, good luck!
1021626
active only in the presence of a catalyst
1187623
Spectra Gases' "Zero Air Generators" are commonly used in conjunction with hydrogen generators to operate a flame ionization detector (FID). A Hydrogen generator provides fuel while a zero air generator provided hydrocarbon free air for combustion in the detector. The Spectra Gas Zero Air Generator has a catalytic combustor which is electrically heated to a very precise temperature. At this elevated temperature, all of the hydrocarbon molecules contained in the gas are converted by the catalyst to CO2  and  H2O, down to ppb level. Catalytic conversion is the only practical means to remove hydrocarbons, especially the low molecular hydrocarbons like methane, which cannot be trapped by any filters or chemical getters. \n\nFlow Rates from one (1) liter per minute to seventy five (75) liters per minute\nCurrent Gas Flow and Catalyst Temperature display\nOperating/Stand-by Switch\nParallel-run Option\nRemote Control and Alarm\nReducing hydrocarbons to better than 0.01 ppm