Catalyst

Decent Essays
Improved Essays
Superior Essays
Great Essays
Brilliant Essays
    Page 10 of 50 - About 500 Essays
  • Improved Essays

    Refinery Chemistry Essay

    • 1378 Words
    • 6 Pages

    Processes using this technology react hydrogen with the oil heavy products to enhance the H/C such that the yield of the lighter products improved. It is a catalyst base process. It expected to yield more products, but it requires a large investment since it needs hydrogen. Also, it is a sensitive process since the feed’s impurities disturb the catalyst. Due…

    • 1378 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    The voyage of discovery is not in seeking new landscapes but in having new eyes. Discoveries are paradoxical, complex and multifaceted. They require a catalyst and extreme or unfamiliar circumstances. In William Shakespeare’s The Tempest the storm is the catalyst, and the island is the anomalous environment providing its inhabitants with an impeccable site for discovery. And address the question. This is also expressed by Kenneth Slessor’s poem Five Visions of Captain Cook where repeat the above…

    • 913 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Water Loss Lab Report

    • 980 Words
    • 4 Pages

    in vehicle exhausts into less harmful things. For example, a reaction which removes both carbon monoxide and an oxide of nitrogen is: Because the exhaust gases are only in contact with the catalyst for a very short time, the reactions have to be very fast. The extremely expensive metals used as the catalyst are coated as a very thin layer onto a ceramic honeycomb structure to maximise the surface area. The explanation You are only going to get a reaction if the particles in the gas or liquid…

    • 980 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    The Synthesis Of Aspirin

    • 746 Words
    • 3 Pages

    esterification, which is a reaction between an alcohol and a carboxylic acid within the presence of a catalyst, synthesizing an ester (Weldegirma, 2014). The catalyst has to be something that will provide the addition of a proton, such as a Lewis acid, in order to provide a more reactive electrophile and speed up the reaction (Fischer Esterification Fischer-Speier Esterification, 2015). Some possibilities for the catalyst are sulfuric acid, tosic acid, and phosphoric acid (James, 2014). For the…

    • 746 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Enzymes are catalysts that contain proteins. Catalysts are the part of the product that speeds up a reaction. Only reactions can occur when the right enzyme ends up finds the right material to produce a process. A low pH is a good environment for an enzyme as well as a low temperature. After the reaction, no enzymes are used up. They can be used again and again in reactions, once an enzyme is used in one reaction, it can be used in another. Enzymes are made up of proteins and proteins are made…

    • 529 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Green Synthesis of Ibuprofen Green Chemistry is a new approach and perspective of chemistry that can improve human lives and maximize efficiency. It is a branch in chemistry that explores and examines techniques to reduce and eliminate hazardous and harmful substances. These harmful substances effect humans and the environment in multiple ways, the twelve principles of Green Chemistry can help minimize them. The twelve principles include prevention of waste, the design of less hazardous…

    • 820 Words
    • 4 Pages
    Improved Essays
  • Great Essays

    oxygen. It is a very strong oxidant but weak in water solution. Hydrogen peroxide decomposes into water and oxygen when heated above about 80°C and also decomposes in the presence of a catalyst. A catalyst is a substance that increases the rate of a chemical reaction but is not changed by the reaction. The catalyst in this case would be breaking hydrogen…

    • 1608 Words
    • 7 Pages
    Great Essays
  • Improved Essays

    King Lear are far from respectable, it is his disregard for the two characters present who are arguably the most noble and well-intentioned that give him the honor of meeting his tragic fate. In short, the banishment of Cordelia and Kent act as the catalyst for Lear’s tragedy. In a way these two characters are vehicles for Lear’s mistakes; regardless of Cordelia’s actions, she live within Lear’s story, and while her father grows and learns from his errors throughout the entirety of the play, his…

    • 1055 Words
    • 4 Pages
    Improved Essays
  • Great Essays

    Iodine Clock Reaction

    • 2043 Words
    • 9 Pages

    These factors included temperature, concentration, and the addition of a catalyst. The results obtained positively relate back to the aim stated, as they demonstrate significant differences between each temperature, and concentration (for example). Despite such differences, it was concluded that in response to the increase of each chosen stimulus (temperature, concentration and catalyst), the reaction rate of the hydrogen peroxide iodine clock too increased (essentially this is…

    • 2043 Words
    • 9 Pages
    Great Essays
  • Improved Essays

    hydro-deoxygenation catalyst using supported noble metal nanoparticles. [8] Catalysts are extensively used in industry to facilitate and speed up chemical reactions. Hydro-deoxygenation is a reaction that can give alkanes as a final product that can be used directly as a fuel in conventional engines. This happens by removing oxygen from the biomass feedstock. To achieve that a catalyst is required that will aid in breaking the carbon-oxygen bonds in the biomass. However, catalysts used for this…

    • 1044 Words
    • 5 Pages
    Improved Essays
  • Page 1 7 8 9 10 11 12 13 14 50