Optimal dynamical processes in tubular reactor with deactivation of multi-run moving catalyst

Szwast, Zbigniew; Sieniutycz, Stanisław

doi:10.1016/j.cej.2004.07.006

Cited by 7 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The temperature and each component concentration profiles inside a catalyst pellet were considered by using Eqs. (8) and (9). The effective diffusivity coefficients of each component were included in Eq.…”

Section: -3 For the Catalyst Particlementioning

confidence: 99%

See 1 more Smart Citation

Catalytic propane dehydrogenation: Advanced strategies for the analysis and design of moving bed reactors

Ghodasara

Hwang

Smith

2015

Korean J. Chem. Eng.

View full text Add to dashboard Cite

A moving bed reactor (MBR) is one of the most innovative reactors that are commonly used in industry nowadays. However, the modeling and optimization of the reactor have been rarely performed at conceptual design stage due to its complexity of design, and it has resulted in increased capital and operating costs of the overall chemical processes. In this work, advanced strategies were introduced to model an MBR and its regenerator mathematically, incorporating catalyst deactivation, such as coke formation. Various reactor designs and operating parameters of the MBR were optimized to increase the overall reactor performance, such as conversion or selectivity of the main products across the reactor operating period. These optimization parameters include: (1) reactant flow inside a reactor, (2) various networks of MBRs, (3) temperature of the feed stream, (4) intermediate heating or cooling duties, (5) residence time of the catalyst or velocity of catalyst flow, and (6) flow rate of the fresh make-up catalyst. The propane dehydrogenation process was used as a case study, and the results showed the possibility of significant increase of reactor performance through optimization of the above parameters. For optimization, the simulated annealing (SA) algorithm was incorporated into the reactor modeling. This approach can be easily applied to other reaction processes in industry.

show abstract

Section: -3 For the Catalyst Particlementioning

confidence: 99%

“…Szwast and Sieniutycz developed a dynamic model of a co-current tubular reactor under single and multi-run catalysts [8]. Because catalyst deactivation depends on the temperature inside a reactor, they optimized the temperature profile to achieve a higher overall production rate of the desired product and lower rate of catalyst deactivation.…”

Section: June 2015mentioning

confidence: 99%

Catalytic propane dehydrogenation: Advanced strategies for the analysis and design of moving bed reactors

Ghodasara

Hwang

Smith

2015

Korean J. Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…[166~168] 以利润输出率最大为优化目标, 考虑催化剂失活 [166] 和再生效应 [166,167] 的影响, 分别在稳态运行 [166,167] 和非稳态运行 [168] 条件下对管式循环床反应器中的平行串联反应(A+B→R, R+B→S, R为目标产物)进行了优化, 得到了反应温度的最优构型. Fro-lov等人 [169] 建立了管式反应器催化合成一甲基苯胺的数学模型, 以产品成本最小为优化目标, 得到了反应温度的最优构型.…”

Section: Szwast和sieniutyczunclassified

Progress in thermodynamic analyses and optimizations for key component units in sea-based fuel synthesis systems

Chen

Wang

Zhang³

et al. 2020

Sci. Sin.-Tech.

View full text Add to dashboard Cite

“…153,154 They concluded that the analysis of the reactor effluent composition is not sufficient to validate the considered models; thus, the data of the moving bed is also required. 153,157 Gradually, the modeling of the MBRs was developed, and more effective parameters were investigated including cocurrent/countercurrent configurations, 158 the application of nanocatalysts, 12 different types of the feed, 159 radial flow pattern, 160 the catalyst deactivation, 161 the moving bed for the grain drying process, 162 and the CVD coating of the fine particles. 163 The process modeling has been conducted by considering the mass and energy balances, 164 kinetics, 165 the equilibrium, 90 and the physical properties.…”

Section: Theoretical Studiesmentioning

confidence: 99%

Moving Bed Reactors: Challenges and Progress of Experimental and Theoretical Studies in a Century of Research

Shirzad

Karimi

Silva

et al. 2019

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Moving bed reactors (MBRs) have been proposed as a sign of significant progress in the reaction engineering area for performance improving and energy saving. Since their advent in 1890, the MBRs have attracted a wide acceptance in different industries, while they were first developed for the drying industries. The progress that this technology has made during its evolution led to the introduction of these reactors as a pioneer strategy in other industries including petroleum, petrochemical, pyrolysis, and biomass industries. In the traditional reaction systems, the process performance decreases during the operational conditions, while MBRs have obviated this drawback by having an all-around permanent acceptable efficiency. In this context, the present work provides an overview on the evolution of MBRs by investigating the main experimental and theoretical studies. In this way, the experimental studies have typically taken into account operational conditions and production rates of different products, while in the theoretical research, modeling, and simulation of conventional processes, the evaluation of novel configurations and the optimization techniques have been investigated. In the end, some suggestions are proposed to modify the traditional MBRs as helpful ideas for further studies.

show abstract

Optimal dynamical processes in tubular reactor with deactivation of multi-run moving catalyst

Cited by 7 publications

References 4 publications

Catalytic propane dehydrogenation: Advanced strategies for the analysis and design of moving bed reactors

Catalytic propane dehydrogenation: Advanced strategies for the analysis and design of moving bed reactors

Progress in thermodynamic analyses and optimizations for key component units in sea-based fuel synthesis systems

Moving Bed Reactors: Challenges and Progress of Experimental and Theoretical Studies in a Century of Research

Contact Info

Product

Resources

About