Reactive distillation with KATAPAK®

Götze, Lars; Bailer, Oliver; Moritz, Peter; Scala, C. von

doi:10.1016/s0920-5861(01)00370-4

Cited by 82 publications

(52 citation statements)

References 8 publications

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“…The number of theoretical stages per meter (NTSM) for Sulzer-BX packing is 5 m −1 while the NTSM for Katapak-SP 12 is 2.5 m −1 (Popken et al, 2001;Gotze et al, 2001). The estimation of mass transfer coefficients and interfacial areas from empirical correlations in the rate-based model always required information about the column design and geometrical data for the packing used.…”

Section: Comparison Of Theoretical and Experimental Resultsmentioning

confidence: 99%

Production of isopropyl palmitate in a catalytic distillation column: Experimental studies

Bhatia

Ahmad

Mohamed

et al. 2006

Chemical Engineering Science

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Section: Comparison Of Theoretical and Experimental Resultsmentioning

confidence: 99%

Production of isopropyl palmitate in a catalytic distillation column: Experimental studies

Bhatia

Ahmad

Mohamed

et al. 2006

Chemical Engineering Science

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“…Another hybrid structure is that of Multipak with narrow catalyst-containing compartments, i.e., catalyst-filled pockets sandwiched in between wire gauze corrugated sheets with different specific areas and corrugation angles [8,9]. Multipak was originally manufactured by J. Montz GmbH, however upon transfer of patent rights to Sulzer [10], the structure of this packing has been optimized and it became the base type of Sulzer's Katapak-SP [11,12] family of catalytic packings. It is known as Katapak-SP11 [12][13][14], with the number 11 indicating that catalyst-containing pockets made of wire gauze are separated by one corrugated sheet, while in the case of Katapak SP-12, the catalyst-containing pockets are separated by two corrugated sheets.…”

Section: Introductionmentioning

confidence: 99%

Liquid Holdup in Catalyst‐Containing Pockets of a Modular Catalytic Structured Packing

Behrens¹,

Olujić

Jansens

2008

Chem Eng & Technol

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This paper introduces a simple, first principles-based model describing the liquid holdup in the catalyst-containing pockets of Katapak-SP, a modular catalytic structured packing developed to allow a certain degree of flexibility with respect to the variation in reaction-to-separation requirements in a single unit. The basic requirement for the catalyst-containing pockets in this respect is to be fully filled with flowing liquid which implies that the operating holdup is bound between the static holdup of the catalyst bed as the lower end, and that corresponding to the upper limit, the so-called catalytic load point. The latter is the liquid load corresponding to the bed saturation point, indicating that excessive liquid will be retained, i.e., will remain in the separation part of the packing element and mix with the liquid leaving the catalyst-filled pockets at the bottom of the element. Detailed knowledge of the liquid holdup as well as the pattern of the trickling flow is essential because it governs the performance of the reaction part and consequently the hybrid unit as a whole. Both glass and resin (an industrial catalyst) particles were used in conjunction with water and a binary water-methanol mixture as working fluids. The model predictions for static holdup and the catalytic load agree well with the experiments.

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“…In industrial applications, packed columns with catalyst in gauze pockets are often favored [10], e.g., KATAPAK™ of Sulzer Chemtech Ltd., Winterthur, Switzerland, where the wire gauze pockets are sandwiched between structured packing sheets. Packings are also available for laboratory-scale experiments and are widely used for that purpose (see e.g., [11][12][13]). …”

Section: Introductionmentioning

confidence: 99%

New Equipment for Laboratory Studies of Heterogeneously Catalyzed Reactive Distillation

et al. 2009

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In this paper, novel equipment for laboratory studies of heterogeneously catalyzed reactive distillation is described. The so called D+R tray equipment consists of a combination of conventional bubble cap trays with sections that are filled with catalyst and through which the liquid flows when it passes from one distillation tray down to the next. It is designed so that the catalyst can be easily changed, and its amount can be flexibly chosen. In the present study, D+R tray equipment built in glass in the 50 mm diameter scale was investigated. The pressure drop is only slightly higher than that of a standard distillation tray alone and it allows the same fluid dynamic capacity. In order to characterize the properties of the equipment as a reactor, residence time distribution (RTD) measurements were carried out. For this purpose, the equipment was modified so that only the reactive section could be studied. Still, the RTD of the catalytic bed cannot be investigated directly. It was therefore determined based on accompanying computational fluid dynamics simulations. The RTD of the catalytic bed can be described well by a simple dispersion model with a Bodenstein number of 60-65, showing that it basically has plug flow characteristics.

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Reactive distillation with KATAPAK®

Cited by 82 publications

References 8 publications

Production of isopropyl palmitate in a catalytic distillation column: Experimental studies

Production of isopropyl palmitate in a catalytic distillation column: Experimental studies

Liquid Holdup in Catalyst‐Containing Pockets of a Modular Catalytic Structured Packing

New Equipment for Laboratory Studies of Heterogeneously Catalyzed Reactive Distillation

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