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Catalytic Partial Oxidation of Propylene to Acrolein: The Activity of Bismuth Molybdate Catalysts under Oxygen‐Rich Conditions
Author(s) -
Fansuri H.,
Pham G.H.,
Wibawanta S.,
Radford R.D.,
Zhang D.K.
Publication year - 2004
Publication title -
developments in chemical engineering and mineral processing
Language(s) - English
Resource type - Journals
eISSN - 1932-2143
pISSN - 0969-1855
DOI - 10.1002/apj.5500120409
Subject(s) - molybdate , catalysis , bismuth , acrolein , selectivity , inorganic chemistry , chemistry , partial oxidation , reactivity (psychology) , molybdenum , oxygen , nuclear chemistry , materials science , organic chemistry , medicine , alternative medicine , pathology
The effect of Bi/Mo ratio, which varied between 1:3 and 2:1, on the activity of bismuth molybdate catalysts prepared by precipitation method for partial oxidation of propylene has been investigated. X‐ray diffraction analysis revealed that the catalysts contained a mixture of α‐Bi 2 Mo 3 O 12 and molybdite (MoO 3 ) for BI/Mo = 1:3, pure α‐Bi 2 Mo 3 O 12 , for Bi/Mo = 2:3, a mixture of β‐Bi 2 Mo 2 O 9 and α‐Bi 2 Mo 3 O 12 for Bi/Mo = ]:I, and pure γ.Bi 2 MoO 6 for Bi/Mo = 2:l. The catalytic activity tests show that the catalysts achieved up to 56% conversion of C 3 H 6 , with up to 91% selectivity towards C 3 H 4 0 production. The relative reactivity of the catalysts follow the order of Bi/Mo 2:3 = Bi/Mo 2:1> Bi/Mo 1.3 Bi/Mo 1:1.