Particle size dependence for CO chemisorption on supported Ru catalysts

C(杨成), Yang; GoodwinJr., J. G.

doi:10.1007/bf02063576

Cited by 29 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After the same reduction pretreatment used in the reaction kinetic studies, catalyst samples were evacuated at 400°C for I h and then cooled to room temperature under vacuum. Gas uptakes were determined from the initial and reversible isotherms using the zero-pressure-intercept method (Goodwin, 198 I ;Yang and Goodwin, 1982). Chemisorption measurements on used samples were made following the reduction of the catalysts, without exposure to air, in flowing hydrogen for 2 h at 400°C and subsequent evacuation for I h at the same temperature.…”

Section: Methodsmentioning

confidence: 99%

Physical effects on Fischer–tropsch synthesis over composite Ru catalysts

C(杨成)

Goodwin

1983

Can J Chem Eng

Self Cite

View full text Add to dashboard Cite

Fischer–Tropsch synthesis was studied over composite catalysts formed by adding SiO2 to Ru/Al2O3 and to Ru/TiO2. The two Ru primary catalysts alone had reasonably similar catalytic properties for this synthesis. It was found that the presence of excess amounts of SiO2 with the primary Ru catalysts can produce significant changes in conversion and product selectivity, depending upon the support used. It is suggested that the effects produced by the physical presence of this inert material are due to a combination of primary catalyst activity, product selectivities, possible secondary reactions, heat and mass transfer effects, and reaction conditions. These results emphasize the importance of considering both physical and chemical effects when developing any composite catalyst mechanism.

show abstract

Section: Methodsmentioning

confidence: 99%