Control of the selectivity of a palladium membrane catalyst in the hydrogenation of dimethyl ethinyl carbinol

Journal Article · Sat Sep 10 04:00:00 EDT 1988 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6084525

Sokol'skii, D V; Nogerbekov, B Yu; Fogel', L A

The results of studies obtained in hydrogenation of dimethyl ethinyl carbinol (DMEC) on a palladium membrane catalyst as a function of the hydrogen feed rate are reported. The design of the reactor permitted polarizing one side of the membrane catalyst and conducting hydrogenation with simultaneous recording of the catalyst surface potential on the other. With higher current densities when the palladium membrane is supersaturated with hydrogen, almost all of the DMEC is hydrogenated at once into tert-amyl alcohol due to the hydrogen weakly bound with the surface. This process is highly selective with respect to the final product of the reaction. The results obtained thus show that the use of a membrane catalyst combined with an electrochemical method of obtaining hydrogen makes it possible to control the selectivity of hydrogenation as a function of the current density of polarization of the membranes.

• OSTI ID: 6084525
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 61:3; ISSN JAPUA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400400 -- Electrochemistry
ADSORPTION
ALCOHOLS
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CONTROL
CURRENT DENSITY
DIFFUSION
ELECTRIC POTENTIAL
ELECTROCATALYSTS
ELEMENTS
HETEROGENEOUS CATALYSIS
HYDROGEN
HYDROGENATION
HYDROXY COMPOUNDS
MEMBRANES
METALS
NONMETALS
ORGANIC COMPOUNDS
PALLADIUM
PLATINUM METALS
POLARIZATION
PROCESS CONTROL
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TRANSITION ELEMENTS