Oxidation of sulfur dioxide in a trickle-bed reactor

A Model for the Oxidation of Sulfur Dioxide in a Trickle-Bed Reactor

“…This could be attributed to the variation in the characteristics of the activated carbon from one batch of production to another and of the pendular rings, which depend on the particle size. On the other hand, for an unsaturated feed, the f δ 's for the data of Mata and Smith (1981) were in close agreement with those in the present work. However, it may be pointed that there is an uncertainity in the analysis of oxygen concentration for an unsaturated feed, as reported by Mata and Smith (1981).…”

“…On the other hand, for an unsaturated feed, the f δ 's for the data of Mata and Smith (1981) were in close agreement with those in the present work. However, it may be pointed that there is an uncertainity in the analysis of oxygen concentration for an unsaturated feed, as reported by Mata and Smith (1981). The estimated f δ values have been correlated with the corresponding film Reynolds number for the data in the present work, using a quadratic polynomial given as To examine the ability of the model to estimate the rates, the reaction rates were computed using the relation for f δ (eq 21).…”

“…The regula-falsi iterative method was used to find f δ to attain the difference between the calculated and experimental values to a prescribed tolerance. Similarly, f δ was found for the data reported by Mata and Smith (1981).…”

A Model for the Oxidation of Sulfur Dioxide in a Trickle-Bed Reactor

“…This could be attributed to the variation in the characteristics of the activated carbon from one batch of production to another and of the pendular rings, which depend on the particle size. On the other hand, for an unsaturated feed, the f δ 's for the data of Mata and Smith (1981) were in close agreement with those in the present work. However, it may be pointed that there is an uncertainity in the analysis of oxygen concentration for an unsaturated feed, as reported by Mata and Smith (1981).…”

“…On the other hand, for an unsaturated feed, the f δ 's for the data of Mata and Smith (1981) were in close agreement with those in the present work. However, it may be pointed that there is an uncertainity in the analysis of oxygen concentration for an unsaturated feed, as reported by Mata and Smith (1981). The estimated f δ values have been correlated with the corresponding film Reynolds number for the data in the present work, using a quadratic polynomial given as To examine the ability of the model to estimate the rates, the reaction rates were computed using the relation for f δ (eq 21).…”

“…The regula-falsi iterative method was used to find f δ to attain the difference between the calculated and experimental values to a prescribed tolerance. Similarly, f δ was found for the data reported by Mata and Smith (1981).…”

Determination of Wetting Efficiency in Trickle-Bed Reactors by a Reaction Method

“…This behavior is in good agreement with theoretical predictions and has been observed before (Holub et al, 1992;Dudukovic, 1994, 1995). The observed differences for low liquid flow were consistent with the findings of other authors who employed the reaction method (Mata and Smith, 1981;Herskowitz and Mosseri, 1983). A possible explanation for this may come from the assumption that the part of the catalyst surface wetted by stagnant liquid may be excluded from participating in the chemical reaction but is revealed as wetted in the tracer technique.…”

Process Intensification in a Model Trickle-Bed Reactor

“…However, there is a marginal increase in the reaction rate at high flow rates. The trend is similar to the one reported in trickle-bed reactors for hydrogenation of α-methylstyrene 8 and for the oxidation of sulfur dioxide over activated carbon . They attributed the trend to partial wetting.…”

A Model for the Oxidation of Sulfur Dioxide in a Trickle-Bed Reactor

“…This could be attributed to the variation in the characteristics of the activated carbon from one batch of production to another and of the pendular rings, which depend on the particle size. On the other hand, for an unsaturated feed, the f δ 's for the data of Mata and Smith (1981) were in close agreement with those in the present work. However, it may be pointed that there is an uncertainity in the analysis of oxygen concentration for an unsaturated feed, as reported by Mata and Smith (1981).…”

“…On the other hand, for an unsaturated feed, the f δ 's for the data of Mata and Smith (1981) were in close agreement with those in the present work. However, it may be pointed that there is an uncertainity in the analysis of oxygen concentration for an unsaturated feed, as reported by Mata and Smith (1981). The estimated f δ values have been correlated with the corresponding film Reynolds number for the data in the present work, using a quadratic polynomial given as To examine the ability of the model to estimate the rates, the reaction rates were computed using the relation for f δ (eq 21).…”

“…The regula-falsi iterative method was used to find f δ to attain the difference between the calculated and experimental values to a prescribed tolerance. Similarly, f δ was found for the data reported by Mata and Smith (1981).…”

Determination of Wetting Efficiency in Trickle-Bed Reactors by a Reaction Method

“…This behavior is in good agreement with theoretical predictions and has been observed before (Holub et al, 1992;Dudukovic, 1994, 1995). The observed differences for low liquid flow were consistent with the findings of other authors who employed the reaction method (Mata and Smith, 1981;Herskowitz and Mosseri, 1983). A possible explanation for this may come from the assumption that the part of the catalyst surface wetted by stagnant liquid may be excluded from participating in the chemical reaction but is revealed as wetted in the tracer technique.…”

Process Intensification in a Model Trickle-Bed Reactor

“…However, there is a marginal increase in the reaction rate at high flow rates. The trend is similar to the one reported in trickle-bed reactors for hydrogenation of α-methylstyrene 8 and for the oxidation of sulfur dioxide over activated carbon . They attributed the trend to partial wetting.…”

A Model for the Oxidation of Sulfur Dioxide in a Trickle-Bed Reactor

“…This could be attributed to the variation in the characteristics of the activated carbon from one batch of production to another and of the pendular rings, which depend on the particle size. On the other hand, for an unsaturated feed, the f δ 's for the data of Mata and Smith (1981) were in close agreement with those in the present work. However, it may be pointed that there is an uncertainity in the analysis of oxygen concentration for an unsaturated feed, as reported by Mata and Smith (1981).…”

“…On the other hand, for an unsaturated feed, the f δ 's for the data of Mata and Smith (1981) were in close agreement with those in the present work. However, it may be pointed that there is an uncertainity in the analysis of oxygen concentration for an unsaturated feed, as reported by Mata and Smith (1981). The estimated f δ values have been correlated with the corresponding film Reynolds number for the data in the present work, using a quadratic polynomial given as To examine the ability of the model to estimate the rates, the reaction rates were computed using the relation for f δ (eq 21).…”

“…The regula-falsi iterative method was used to find f δ to attain the difference between the calculated and experimental values to a prescribed tolerance. Similarly, f δ was found for the data reported by Mata and Smith (1981).…”

Determination of Wetting Efficiency in Trickle-Bed Reactors by a Reaction Method

“…This behavior is in good agreement with theoretical predictions and has been observed before (Holub et al, 1992;Dudukovic, 1994, 1995). The observed differences for low liquid flow were consistent with the findings of other authors who employed the reaction method (Mata and Smith, 1981;Herskowitz and Mosseri, 1983). A possible explanation for this may come from the assumption that the part of the catalyst surface wetted by stagnant liquid may be excluded from participating in the chemical reaction but is revealed as wetted in the tracer technique.…”

Process Intensification in a Model Trickle-Bed Reactor

“…However, there is a marginal increase in the reaction rate at high flow rates. The trend is similar to the one reported in trickle-bed reactors for hydrogenation of α-methylstyrene 8 and for the oxidation of sulfur dioxide over activated carbon . They attributed the trend to partial wetting.…”