ISSN:
1572-879X
Schlagwort(e):
$${\text{Pd/}}\gamma {\text{ - Al}}_{\text{2}} {\text{O}}_{\text{3}}$$
;
inorganic membrane
;
catalytic membrane reactor
;
acetylene hydrogenation catalyst
;
1,3-butadiene hydrogenation catalyst
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract A $${\text{Pd/}}\gamma {\text{ - Al}}_{\text{2}} {\text{O}}_{\text{3}}$$ membrane supported on a macroporous $$\alpha {\text{ - Al}}_{\text{2}} {\text{O}}_{\text{3}}$$ tube was prepared by sol–gel processing and used in the partial hydrogenation of acetylene and 1,3-butadiene. The average pore diameter of the $${\text{Pd/}}\gamma {\text{ - Al}}_{\text{2}} {\text{O}}_{\text{3}}$$ membrane was 3.6 nm. The gases were separated by Knudsen diffusion. The activity and selectivity of the $${\text{Pd/}}\gamma {\text{ - Al}}_{\text{2}} {\text{O}}_{\text{3}}$$ membrane was compared to that of $${\text{Pd/}}\gamma {\text{ - Al}}_{\text{2}} {\text{O}}_{\text{3}}$$ catalysts used in a conventional packed bed reactor. The highest selectivity to the partially hydrogenated products occurred when the reactant was premixed with H2 and was passed through the membrane wall.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1023/A:1019027027792
Permalink
