catalytic reaction
81Selective Catalytic Reduction — SCR, pour Selective Catalytic Reduction en Anglais ou Réduction Catalytique Sélective (RCS) en Français, est un sigle désignant une technologie utilisée pour réduire les Oxydes d azotes NOx émis soit par des moteurs a combustion interne, soit par …
82Haber-Weiss reaction — The Haber Weiss reaction generates •OH (hydroxyl radicals) from H2O2 (hydrogen peroxide) and superoxide (•O2 ). This reaction can occur in cells and is therefore a possible source for oxidative stress. The reaction is very slow, but is catalyzed… …
83Chemical transport reaction — In chemistry, a chemical transport reaction describes a process for purification and crystallization of non volatile solids. The process is also responsible for certain aspects of mineral growth from the effluent of volcanoes. The technique is… …
84Bray-Liebhafsky reaction — The Bray Liebhafsky reaction is a chemical clock first described by W. C. Bray in 1921 and the first oscillating reaction in a stirred homogeneous solution. He investigated the role of the iodate (IO3 ), the anion of iodic acid in the catalytic… …
85Benkeser Reaction — The Benkeser Reduction Reaction is the catalytic hydrogenation of Polycyclic Aromatic Hydrocarbons, esp. Napthalene using Lithium or Calcium metal and any of the following primary amines or low molecular weight alkyl groups as reductants: CH3,… …
86air injection reaction system — (AIR system) The AIR system helps to reduce hydrocarbons and carbon monoxide levels in the exhaust by injecting air into the exhaust ports of each cylinder during cold engine operation, or directly into the catalytic converter during normal… …
87Catalysis — Catalyst redirects here. For other uses, see Catalyst (disambiguation). Solid heterogeneous catalysts such as in automobile catalytic converters are plated on structures designed to maximize their surface area …
88petroleum refining — Introduction conversion of crude oil into useful products. History Distillation of kerosene and naphtha The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… …
89Claus process — The Claus process is the most significant gas desulfurizing process, recovering elemental sulfur from gaseous hydrogen sulfide. First patented in 1883 by the scientist Carl Friedrich Claus, the Claus process has become the industry standard. The… …
90Enzyme — Biocatalyst redirects here. For the use of natural catalysts in organic chemistry, see Biocatalysis. Human glyoxalase I. Two zinc ions that are needed for the enzyme to catalyze its reaction are shown as purp …
