Partial modification for system enhancement of the continuous catalyst regeneration system

Abdel-Gawad, A.K.; Ashour, Hamdy A.; Zakzouk, Ezz El-Din

doi:10.1109/cca.2003.1223530

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Naphtha reforming, based on the regeneration cycles, is classified in three main processes including semiregenerative, , cyclic, , and continuous regeneration. , From the 1970s, when the catalytic continuous regeneration (CCR) process by MBR technology was introduced to the industry, it has attracted worldwide attention, and until now, it has been one of the well-known processes in the petroleum and petrochemical industries . In the next sections, the conventional and optimized naphtha configurations (thermally coupled reactors and membrane reactors) are reviewed in detail.…”

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.

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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.

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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.

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show abstract

“…In this process, higher aromatic content, high hydrogen purity, and catalyst activity can be observed. CCR units operate at ultralow pressure, and their design research octane number is in the range of 95–108. , Although most grassroots reformers are designed for CCR, a few published works regarding modeling of naphtha reforming process have been done on CCR. ,,− …”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of a Novel Membrane Reactor in a Continuous Catalytic Regenerative Naphtha Reformer Accompanied with a Detailed Description of Kinetics

et al. 2013

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Today, improving the performance of reformers by increasing the octane number of products has received more attention in refineries. In this regard, researchers have been looking for ways of increasing the content of high-octane number products such as aromatics. The present research proposes an alternative configuration for a conventional moving bed naphtha reactor. In this new configuration, the membrane concept is applied in the moving bed reactors to increase the aromatics and hydrogen yields. Most studies on the simulation of continuous catalytic regenerative (CCR) naphtha reactors focused on a onedimensional mathematical model, while in this work, a two-dimensional mathematical model (in the radial and axial directions) is considered. In the process model, a new reaction network based on 32 pseudocomponents and 84 reactions, as well as a new deactivation model including the most effective parameters, is considered. To verify the efficiency of the conventional configuration model, its results are compared with the industrial data. Results demonstrate that the application of a membrane can increase the aromatics and hydrogen production rates by about 54 and 220 kmol/h, respectively.

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Partial modification for system enhancement of the continuous catalyst regeneration system

Cited by 2 publications

References 2 publications

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

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

Modeling and Simulation of a Novel Membrane Reactor in a Continuous Catalytic Regenerative Naphtha Reformer Accompanied with a Detailed Description of Kinetics

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