Intraparticle deactivation of bifunctional catalysts

Effect of catalyst pore and pellet sizes on deactivation in SRC oil hydrotreatment

“…This prediction is consistent with the theoretical treatment by Haynes and Leung (1983), and is supported by the results from fuel oil hydrotreatment (Newson, 1975). On the other hand, this conclusion disagrees with that of Masamune and Smith (1966), Murakami et al (1968), Lee and Butt (1973), Polinski et al (1981), and Stiegel et al (1982). They concluded that for parallel fouling, some internal diffusional resistance can give the catalysts better stability and longer life.…”

“…They concluded that for parallel deactivation a catalyst exhibiting an intermediate level of intraparticle resistance gives the highest activity, particularly at long process times. Lee and Butt (1973) expanded Masamune and Smiths work to analyze more complicated systems, and gave a similar conclusion. Murakami et al (1968) experimentally confirmed the theoretical developments by Masamune and Smith.…”

Effect of catalyst pore and pellet sizes on deactivation in SRC oil hydrotreatment

“…This prediction is consistent with the theoretical treatment by Haynes and Leung (1983), and is supported by the results from fuel oil hydrotreatment (Newson, 1975). On the other hand, this conclusion disagrees with that of Masamune and Smith (1966), Murakami et al (1968), Lee and Butt (1973), Polinski et al (1981), and Stiegel et al (1982). They concluded that for parallel fouling, some internal diffusional resistance can give the catalysts better stability and longer life.…”

“…They concluded that for parallel deactivation a catalyst exhibiting an intermediate level of intraparticle resistance gives the highest activity, particularly at long process times. Lee and Butt (1973) expanded Masamune and Smiths work to analyze more complicated systems, and gave a similar conclusion. Murakami et al (1968) experimentally confirmed the theoretical developments by Masamune and Smith.…”

Effect of catalyst pore and pellet sizes on deactivation in SRC oil hydrotreatment

“…This prediction is consistent with the theoretical treatment by Haynes and Leung (1983), and is supported by the results from fuel oil hydrotreatment (Newson, 1975). On the other hand, this conclusion disagrees with that of Masamune and Smith (1966), Murakami et al (1968), Lee and Butt (1973), Polinski et al (1981), and Stiegel et al (1982). They concluded that for parallel fouling, some internal diffusional resistance can give the catalysts better stability and longer life.…”

“…They concluded that for parallel deactivation a catalyst exhibiting an intermediate level of intraparticle resistance gives the highest activity, particularly at long process times. Lee and Butt (1973) expanded Masamune and Smiths work to analyze more complicated systems, and gave a similar conclusion. Murakami et al (1968) experimentally confirmed the theoretical developments by Masamune and Smith.…”

Effect of catalyst pore and pellet sizes on deactivation in SRC oil hydrotreatment

“…This prediction is consistent with the theoretical treatment by Haynes and Leung (1983), and is supported by the results from fuel oil hydrotreatment (Newson, 1975). On the other hand, this conclusion disagrees with that of Masamune and Smith (1966), Murakami et al (1968), Lee and Butt (1973), Polinski et al (1981), and Stiegel et al (1982). They concluded that for parallel fouling, some internal diffusional resistance can give the catalysts better stability and longer life.…”

“…They concluded that for parallel deactivation a catalyst exhibiting an intermediate level of intraparticle resistance gives the highest activity, particularly at long process times. Lee and Butt (1973) expanded Masamune and Smiths work to analyze more complicated systems, and gave a similar conclusion. Murakami et al (1968) experimentally confirmed the theoretical developments by Masamune and Smith.…”