C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 5/333 (2006.01) B01J 23/26 (2006.01) C07C 11/06 (2006.01) C07C 11/09 (2006.01)
Patent
CA 2241226
A process for obtaining light olefins by the dehydrogenation of the corresponding paraffins, consisting: a) in reacting in a reactor, operating at a temperature of between 450 and 800°C, at a pressure of between 0.1 and 3 Atm absolute and with a GHSV space velocity of between 100 and 10000 h-1, said paraffins with a catalytic system containing chromium oxide, tin oxide, at least one alkaline metal oxide (M) and an alumina carrier, in delta or theta phase or in mixed delta + theta or theta + alpha or delta + theta + alpha phases, modified with silica, in which: - the chromium, expressed as Cr2O3, is in a quantity of between 6 and 30 % by weight; - the tin, expressed as SnO, is in a quantity of between 0.1 and 3.5 % by weight; - the alkaline metal, expressed as M2O, is in a quantity of between 0.4 and 3 % by weight; - the silica is in a quantity of between 0.08 and 3 % by weight, the complement to 100 being alumina, b) in regenerating said catalytic system in a regenerator by burning the coke deposited on its surface operating at a temperature of more than 400°C.
Bartolini Andrea
Bespalov Vladimir
Buonomo Franco
Iezzi Rodolfo
Kotelnikov Gueorgui
Oao Nii Yarsintez
Robic
Snamprogetti S.p.a.
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