Passive isothermalisation of an exothermic reaction in flow using a novel “Heat Pipe Oscillatory Baffled Reactor (HPOBR)”

McDonough, Jonathan; Phan, Anh N.; Reay, David; Harvey, Adam P.

doi:10.1016/j.cep.2016.10.017

Cited by 7 publications

(1 citation statement)

References 23 publications

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“…McDonough et al 9 estudando um reator tubular compartimentado oscilatório com jaqueta (HPOBR), também observaram que a conversão é intimamente ligada ao espaço explorado dentro do equipamento, onde para que sejam alcançadas altas conversões é necessário um maior tempo de residência. Além disso, observaram que para baixos valores de Reynolds, as conversões tendem a serem maiores, devido ao aumento no tempo de residência.…”

Section: Figura 3 Volume Do Reator Em Função Da Conversãounclassified

Modeling of a non-Isothermal PFR Type Chemical Reactor with Jacket as a Didactic Tool in Chemical Engineering: A Case Study

Santos¹,

Damasceno²,

Silva³

et al. 2019

Rev. Virtual Quim.

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Advances in industrialization and automation of chemical processes have required engineers to specialize in the operational study of equipment such as chemical reactors and heat exchangers. Amongst the most used reactors is the Plug-flow Reactor-PFR, due to its ease of installation and association with heat exchangers such as jackets. However, due to non-homogeneous composition on the axial side of the reactor, PFR operation and evaluation is still a challenge in many industries. This paper introduces a mathematical model that simplifies the ordinary differential equations and integers used in conventional models, in addition to a simulation and a case study with the objective to improve evaluation of equipment operation and sizing.

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Section: Figura 3 Volume Do Reator Em Função Da Conversãounclassified

Modeling of a non-Isothermal PFR Type Chemical Reactor with Jacket as a Didactic Tool in Chemical Engineering: A Case Study

Santos¹,

Damasceno²,

Silva³

et al. 2019

Rev. Virtual Quim.

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Intensification of epoxidation of vegetable oils using a continuous mesoscale oscillatory baffled reactor

Rahim

Phan

Harvey

2020

J Adv Manuf & Process

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Epoxidized vegetable oils (EVOs) are widely used in the polymer industry as plasticizers, stabilizers, polyols synthesis and elsewhere as precursors for lubricants. Currently, the epoxidation uses peracids (peracetic or performic acid) and is carried out in a semi‐batch or batch reactor. The reaction is highly exothermic, necessitating the gradual addition (typically over 2 hours) of the hydrogen peroxide (HOOH) at a moderate temperature (~60°C), to prevent thermal runaway. In practice, this leads to reaction times of 8 hours or more. In this study, rapeseed oil was epoxidized in a mesoscale oscillatory baffled reactor (“meso‐OBR”), operating in continuous mode, to investigate the feasibility of using this reactor design to convert this batch reaction to continuous. It was found that the continuous meso‐OBR could exceed the product specification of the commercial batch operation. Yields over 75% were achieved, at 10 minutes residence times because a higher molar ratio of acetic acid and HOOH to oil could be used due to the enhanced heat transfer characteristics of the reactor. Based on these findings, an OBR operating at the same production rate as the commercial batch reactor would be approximately 144 times smaller, due to the reduction in residence time, and removal of the various inherent inefficiencies of the batch cycle.

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Oscillatory flow reactors for synthetic chemistry applications

2020

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Oscillatory flow reactors (OFRs) superimpose an oscillatory flow to the net movement through a flow reactor. OFRs have been engineered to enable improved mixing, excellent heat- and mass transfer and good plug flow character under a broad range of operating conditions. Such features render these reactors appealing, since they are suitable for reactions that require long residence times, improved mass transfer (such as in biphasic liquid-liquid systems) or to homogeneously suspend solid particles. Various OFR configurations, offering specific features, have been developed over the past two decades, with significant progress still being made. This review outlines the principles and recent advances in OFR technology and overviews the synthetic applications of OFRs for liquid-liquid and solid-liquid biphasic systems.

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Passive isothermalisation of an exothermic reaction in flow using a novel “Heat Pipe Oscillatory Baffled Reactor (HPOBR)”

Cited by 7 publications

References 23 publications

Modeling of a non-Isothermal PFR Type Chemical Reactor with Jacket as a Didactic Tool in Chemical Engineering: A Case Study

Modeling of a non-Isothermal PFR Type Chemical Reactor with Jacket as a Didactic Tool in Chemical Engineering: A Case Study

Intensification of epoxidation of vegetable oils using a continuous mesoscale oscillatory baffled reactor

Oscillatory flow reactors for synthetic chemistry applications

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