Activity and stability of bimetallic catalysts in the dehydrogenation of n-dodecane

Journal Article · Sat Feb 20 00:00:00 EST 1988 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:5922903

Podkletnova, N M; Kogan, S B; Bursian, N R

A systematic study of the effect of group I-VI elements (Cu, Zn, Ga, Ge, S, S subgroups) on the activity and stability of aluminum-platinum catalysts in the reaction of dehydrogenation of n-dodecane was conducted. Catalysts containing 0.35 wt. % Pt on ..gamma..-Al/sub 2/O/sub 3/ (A-1 grade) were prepared. Nitrates (Cu, Zn, Cd, In, Tl, Pb) and chlorides (Ge, Sn) and selenic acid were used as the starting compounds for application of the promoters. In studying the activity and stability of bimetallic aluminum-platinum catalysts promoted with elements from groups I-VI, it was shown that the increase in the yield of olefins in dehydrogenation of n-dodecane is due to an increase in the specific activity of the Pt. The existence of tolerance of bimetallic catalysts containing Cu, Cd, Sn, Pb, Ge, and Se to coke was experimentally demonstrated. It was shown that the increase in the stability of the catalysts in conditions of intense coke formation is due to prevention of carbonization of the platinum.

• Research Organization: Lenneftekhim Scientific and Industrial Association (USSR)
• OSTI ID: 5922903
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Vol. 60:9; Other Information: Translated from Zh. Prikl. Khim; 60, No. 9, 2028-2031 (Sep 1987)
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALUMINIUM OXIDES
CATALYTIC EFFECTS
BIMETALS
DODECANE
DEHYDROGENATION
PLATINUM
PROMOTERS
MATERIALS TESTING
CADMIUM
CATALYSTS
CHEMICAL REACTION YIELD
COKE
COKING
COPPER
DEACTIVATION
GERMANIUM
HETEROGENEOUS CATALYSIS
INDIUM
LEAD
SELENIUM
STABILITY
THALLIUM
TIN
ZINC
ALKANES
ALUMINIUM COMPOUNDS
CARBONIZATION
CATALYSIS
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTS
HYDROCARBONS
METALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
SEMIMETALS
TESTING
TRANSITION ELEMENTS
YIELDS
400201* - Chemical & Physicochemical Properties