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reactions take place in the catalyst riser within a period of 2–4 seconds. The hydrocarbon vapours "fluidize" the powdered catalyst and the mixture of hydrocarbon...30 KB (4,030 words) - 22:23, 4 September 2024
deactivates the catalyst in less than 1 second. The fluidized catalyst particles are shuttled between the fluidized bed reactor and a fluidized bed burner...14 KB (1,803 words) - 08:32, 27 August 2024- A supercritical fluid (SCF) is any substance at a temperature and pressure above its critical point, where distinct liquid and gas phases do not exist...42 KB (4,785 words) - 04:29, 23 August 2024
- Cracking (chemistry) (section Fluid catalytic cracking)under the influence of heat, catalysts and solvents, such as in processes of destructive distillation or pyrolysis. Fluid catalytic cracking produces a...19 KB (2,447 words) - 04:28, 25 August 2024
Catalytic converter (redirect from Diesel Oxidation Catalyst)harmful NOx emissions, a twin-catalyst system was developed in the 1970s – this added a separate (rhodium/platinum) catalyst which reduced NOx ahead of the...56 KB (6,756 words) - 15:10, 20 August 2024- reactions. In this type of reactor, a fluid (gas or liquid) is passed through a solid granular material (usually a catalyst) at high enough speeds to suspend...9 KB (1,284 words) - 04:19, 5 June 2024
Method". Catalysts. 10 (7): 749. doi:10.3390/catal10070749. EP 2551009, Harris, Thomas M.; Ayyappan, Ponnaiyan & Dou, Danan, "Diesel exhaust fluid formulation...21 KB (2,279 words) - 01:48, 22 August 2024
Heterogeneous catalysis (redirect from Heterogeneous catalyst)reactants diffuse from the bulk fluid phase to adsorb to the catalyst surface. The adsorption site is not always an active catalyst site, so reactant molecules...30 KB (3,239 words) - 20:28, 22 July 2024- The fluidized-bed process remains one of the two most widely used processes for producing polypropylene. Natta first used polymerization catalysts based...17 KB (1,843 words) - 20:03, 9 April 2024
a catalyst support is a material, usually a solid with a high surface area, to which a catalyst is affixed. The activity of heterogeneous catalysts is...9 KB (990 words) - 06:57, 9 August 2024
to 77, either of the Houdry process or of the Thermofor Catalytic or Fluid Catalyst type. The search for fuels with octane ratings above 100 led to the...158 KB (17,786 words) - 19:29, 3 September 2024
Zeolite (category Catalysts)acid catalysts. The acidity is strong enough to protonate hydrocarbons and high-silica zeolites are used in acid catalysis processes such as fluid catalytic...52 KB (5,833 words) - 02:57, 16 June 2024- high-temperature process with a circulating iron catalyst ('circulating fluid bed', 'riser reactor', 'entrained catalyst process') was introduced by the Kellogg...51 KB (5,784 words) - 08:01, 10 July 2024
cubic meters. A fluidized bed reactor suspends small particles of catalyst by the upward motion of the fluid to be reacted. The fluid is typically a gas...8 KB (1,037 words) - 13:50, 10 July 2024- are a type of fluidized bed reactor that utilizes ebullition, or bubbling, to achieve appropriate distribution of reactants and catalysts. The ebullated-bed...4 KB (431 words) - 14:02, 17 August 2023
catalyst. The reactants, in liquid or gas phase, are pumped through the catalyst bed. A chemical reactor may also be a fluidized bed; see Fluidized bed...17 KB (1,911 words) - 07:48, 15 October 2023
"refrigerating Brayton cycle". The combustion flue gas from the catalyst regenerator of a fluid catalytic cracker is at a temperature of about 715 °C and at...19 KB (2,263 words) - 14:13, 25 February 2024- Equilibrium Catalyst refers to the deactivated or spent catalyst after use in a chemical reaction. The main player in oil refining processes such as fluid catalytic...3 KB (361 words) - 18:27, 3 September 2024
- Penex unit Mass flow of the Residue Fluid Catalytic Cracking (RFCC) unit RFCC procedure in a refinery using a catalyst; below: how the explosions in Torrance...62 KB (2,875 words) - 10:16, 23 July 2024
- acid, or by dehydrogenation of isopropyl alcohol over a heated copper catalyst: (CH3)2CHOH → (CH3)2CO + H2 Isopropyl alcohol is often used as both solvent...32 KB (3,083 words) - 01:08, 18 July 2024
- or unorganized ferment. All ferments probably act as catalysators or catalysts. Catalysis is the process by which reactions are either initiated or accelerated
- for relief, for a transcendent moment, or even, on a more banal level, a catalyst that would revive our sagging energies. The magnificence of the sheer mass
- are harder to control in a CSTR. A fluidized bed reactor is, in essence, a CSTR which has been filled with catalyst. The same analogy holds between an