High Temperature Shift Catalysts

Conduct Research

• Formation and Decomposition of Surface Ethoxy Species on Acidic Zeolite Y Studied by the In Situ MAS NMR-UV/Vis Spectroscopy (.pdf)
  spectroscopy allows the identification of species on the working catalyst in more detail, UV/Vis spectroscopy offers the high sensitivity for detecting the formation of aromatic compounds and unsaturated carbenium ions. In this contribution, the first solid-state 13C MAS NMR evidence is presented...
• Magnesium parts with muscle
  the highest strength-to-weight ratio of all structural metals, except for titanium. Its density is only slightly above that of plastic, but its high (72 W/m-K) thermal conductivity lets it dissipate heat more effectively. This makes magnesium a better candidate for parts that see elevated temperatures...
• Heading toward the hydrogen economy
  reformer. The mixture goes into high and low-temperature shift reactors where a water-gas shift reaction converts 92% of the CO into other gases and H2, and removes them from the product stream. Gas reforming also produces 700-psi steam that can be used elsewhere. By one estimate, this process is about...
• Going Small, Thinking Big
  of the two, with differing unit operations performed at the micro or macro level. Getting started in microreactors requires caution (see "Micro Managing," below), as the technology has its limitations and bugs to be worked out. For clean reactions, with high purity and mild temperatures where...
• Fuel Cell Technology Primer (.pdf)
  (from air) with. recycled carbon dioxide. Principle advantages: work with a variety of fuels and use low-cost. nickel catalyst. The high temperature operation makes these units ideally suited to cogeneration plants (where. the waste heat is used to make steam for space heating). They have also been...
• Expanded PTFE Polymer Keeps Electrical and Electronics Cables Clean and Flexible
  insulation to sliding surfaces since its discovery in 1938. These same characteristics let PTFE and its expanded derivatives (ePTFE) work well in cables for today's demanding, high-flex, low-downtime applications. The materials can give cables long flex-life, extra strength, better signal transmission...
• The push toward lifetime lubes
  has a six-member aromatic ring structure with an unsaturated carbon-atom skeleton. The high temperatures and pressures of the hydrocracking process destabilize hydrocarbon structures in crude petroleum. This leads first to hydrogen saturation of aromatic rings to form cycloparaffins, and finally...
• Mastering color
  producing dramatic color shifts, such as from orange to yellow. Understanding how to match the correct pigments and resins is critical. Pigment/resin interactions at high temperatures: Certain resin/pigment combinations can trigger acid/base or oxidation reactions. This may not significantly impact color...
• Going Small, Thinking Big
  requires caution (see "Micro Managing," below), as the technology has its limitations and bugs to be worked out. “For clean reactions, with high purity and mild temperatures — where everything is perfect — microreactor technology lends itself to that very well,” says Clyde Payne, CEO of the emerging...
• Continuous Environmental Monitoring of Benzene, Toluene, Ethyl Benzene, and Xylenes (BTEX) (.pdf)
  of. · Toluene. Benzene is a known leukemia-. exposure to benzene. Long-term. · Xylenes. causing carcinogen with a mandated. exposure may affect bone marrow. maximum shift exposure of 1 ppm. and blood production. Short-term. · Fugitive. or 5 ppm for any 15-minute period. exposure to high levels of benzene...

Engineering Web Search: High Temperature Shift Catalysts