WebDec 3, 2007 · Some experiments were performed in a laboratory scale setup and the required data was gathered. The rate of reaction was considered to be first order based on propane. External diffusion was studied using Mears' criterion and internal diffusion was investigated by the Thiele Module and the Internal Effectiveness Factor, based on … WebSep 1, 1975 · Here we adopt Mear's criteria, i.e. we generate plots of Pe ,;, (R; a') in the plane of Pe - R' where the reactor length is at 95% of the one required for the plug flow. If under given reaction conditions, Pe is greater than Pe.i,, one could safely assume plug flows prevailing in the reactor.
Parameters values for estimating Mears criteria
WebFeb 1, 1971 · The criteria show the critical importance of decreasing the diameters of the reactor and the catalyst particles to minimize transport limitations. Dilution of the bed with inert solids is shown to be advantageous only at Reynolds numbers sufficiently low that the effective thermal conductivity of the bed is insensitive to the flow rate. WebDec 31, 2015 · The calculated values of the Mears criterion are 7.74 × 10 −5 , 5.57 × 10 −5 , and 4.31 × 10 −5 on 0.9%Pt 1 + Pt n /Cu-CuZrO x , 0.9%Pt n /Cu-CuZrO x , and 0.9%PtCu-CuZ-rO x , respectively, far... sensory aids should only be used if they:
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WebJan 24, 2024 · To be eligible to receive a transplant, patients must have liver failure/end-stage liver disease. Ideally, they must have no other significant medical or mental health issues. A variety of conditions can lead to the need for a liver transplant, including: Acute liver failure Alcohol-induced liver disease WebThe Mears criterion was applied to verify that no mass transfer limitation was to be expected for the system from the gas phase to the non-porous catalyst ... [Pg.322] The Mears criterion can be applied for evaluating the … WebParameters in the Mears criterion Source publication +1 Highly selective and stable hydrogenation of heavy aromatic-naphthalene over transition metal phosphides Article Full-text available Apr... sensory afferent pathway