Cu/γ-Al2O3 catalyst for the combustion of methane in a fluidized bed reactor

Conversion of liquid and gaseous fuels in fluidized bed combustion and gasification

“…Gaseous fuel feed Air-fuel premixing in the windbox Catalytic combustion Transport phenomena at the bed level (Zukowski, 2000) Catalyst activity, thermal stability, and comminution (Iamarino et al, 2002(Iamarino et al, a,b,c, 2006 Jet penetration length (Merry, 1971) Transport phenomena at the catalytic particle level (Iamarino et al, 2002a(Iamarino et al, , b, c, 2006) Endogenous bubble formation (Fiorentino et al, 1997) Fuel diffusion into the dense phase (Stubington and Davidson, 1981;Borodulya et al, 1992) Fuel injection into the bed (single nozzle, jetting manifold, multiple port, etc.) Ignition and homogeneous oxidation by chain propagation in the dense phase (Ranzi et al, 2001) Extinction by radical termination in the dense phase (Dennis et al, 1982) Ignition and homogeneous oxidation in bubbles (Bulewicz et al, 2003) Mass transfer between bubbles and dense phase (Kunii and levenspiel, 1991) Heat and mass transfer between gas and particles in the splash zone Freeboard phenomena (temperature peaks, light and sound bursts, prompt NO peaks, fast pressure oscillations, etc.…”

“…have led some researchers to pursue catalytic combustion (Zukowski, 2000;Iamarino et al, 2002aIamarino et al, , 2002bIamarino et al, , 2002c.…”

Catalytic combustion of methane in a fluidized bed reactor under fuel-lean conditions

“…Preparation techniques and physicochemical characterization of the catalyst have been already described elsewhere (Iamarino et al, 2002). Preparation techniques and physicochemical characterization of the catalyst have been already described elsewhere (Iamarino et al, 2002).…”

Spineli Catalysts for the Catalitic Combustion of Toluen

“…Difractograma de raze X pentru catalizatorul UPG3 aratã cã înlocuirea în combinaþia complexã precursor a 0,5 ioni Fe 3+ cu 0,5 ioni Cr 3+ are drept rezultat rearanjarea distribuþiei cationice atât a ionilor Cu(II), cât ºi a celor de Fe(III). În produsul final [5][6][7][8][9] ionii Cr 3+ au tendinþa de a ocupa atât poziþiile octaedrice ocupate parþial de Cu 2+ , cât ºi cele ocupate de Fe 3+ . Diagrama de raze X evidenþiazã formarea unui oxid mixt Cu(Cr,Fe) 2 O 4 , cu structurã cubicã.…”

“…Performanþe catalitice remarcabile s-au obþinut folosind catalizatori de tip oxidic. Literatura de specialitate [2][3][4][5][6][7][8] indicã folosirea cu succes în procesele de depoluare a gazelor, a unei game foarte variate de oxizi cu structurã spinelicã, perovskiticã sau de granat.…”