Mass transfer resistance in downer reactors

Subbarao, D. (2008) Mass transfer resistance in downer reactors. In: UNSPECIFIED.

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

Conversions in downer reactors are lower than what is expected from a pseudo homogeneous plug flow reactor model. This was attributed to particles moving as clusters, axial gas mixing and gas to particle mass transfer. In the present paper, a two phase tanks in series model is developed for the downer reactors considering gas to particle mass transfer. The model is compared with recent experimental observations on a downer reactor reported in the literature to estimate mass transfer coefficients. Estimated Sherwood Numbers are observed to increase as a function of the ratio of gas to particle velocities. This result is in line with the recently reported direct observations on gas to particle mass transfer in downers.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: cited By 0; Conference of 2008 AIChE Annual Meeting, AIChE 100 ; Conference Date: 16 November 2008 Through 21 November 2008; Conference Code:83913
Uncontrolled Keywords: Direct observation; Downer reactor; Experimental observation; Gas-mixing; In-line; Mass transfer coefficient; Mass transfer resistances; Particle mass; Particle velocities; Plug flow reactor models; Sherwood numbers; Tanks-in-series model; Two phase, Gases, Mass transfer
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 15:15
Last Modified: 09 Nov 2023 15:15
URI: https://khub.utp.edu.my/scholars/id/eprint/360

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