Modifications to Structured Packings to Increase Their Capacity

Bender, Philipp; Moll, Anton

doi:10.1205/026387603321158195

Cited by 24 publications

(13 citation statements)

References 7 publications

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“…In the late 1990s, the first generation of packings was developed through modifications of the macro‐geometry in the triangular channel , . For more than two decades, extensive modifications have been made on the structured packings to increase their capacity and mass‐transfer performance . One of the main challenges in the structured packings is increasing their capacity.…”

Section: Introductionmentioning

confidence: 99%

Characterization of New Wire Gauze High‐Capacity Structured Packing with Varied Inclination Angle

2017

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A new high‐capacity structured packing (PACK‐1300) was investigated for the separation of mixtures with low separation factor. The effect of the inclination angle was studied. In order to enhance the pressure drop and the separation efficiency of PACK‐1300, the surface area and porosity were increased. In addition, comprehensive parametric studies were performed to evaluate the dry/wet pressure drop and mass‐transfer efficiency under various operating conditions. Increasing the inclination angle enhances the capacity and decreases the efficiency of the packings. PACK‐1300W reduced the dry and wet pressure drop significantly more than PACK‐1300Z. Finally, the separation efficiency results show that the height equivalent to a theoretical plate decreased with decreasing inclination angle.

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Section: Introductionmentioning

confidence: 99%

Characterization of New Wire Gauze High‐Capacity Structured Packing with Varied Inclination Angle

2017

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“…A lot of work has been done, mostly in the industrial world, to improve the performance of distillation columns (Adler et al, 2000;Olujic et al, 2003;. In particular, a considerable research effort has been devoted to the improvement of structured packing design in order to increase their capacity as well as their separation efficiency (Olujic et al, 2000(Olujic et al, , 2003(Olujic et al, , 2007Billingham and Lockett, 1999;Bender and Moll, 2003).…”

Section: Introductionmentioning

confidence: 99%

Tomographic measurement of liquid hold up and effective interfacial area distributions in a column packed with high performance structured packings

Aferka

Viva

Brunazzi

et al. 2011

Chemical Engineering Science

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In this paper, we report on the use of a high energy and high resolution X-ray tomograph to visualize and quantify the distribution of liquid hold up and of gas-liquid interfacial area in a 0.1m diameter column filled with MellapakPlus 752.Y packing elements. A standard air-water system at room temperature and atmospheric pressure were used. Tomographic measurements have been carried out in a large number of packing cross sections situated at different heights between the top and the bottom of the packed column, giving access to the evolution of axial profiles of liquid hold up and of gas-liquid interfacial area as a function of the operating conditions. Gas-liquid interfacial area values were also measured by a chemical method (CO2 absorption from air into a caustic solution). For the first time, a whole set of gas-liquid interfacial area values evaluated from tomographic images are interestingly compared with values measured by a chemical method. A comparison is also presented with literature models

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“…Standard sheet metal packings with corrugation angle equal to 30°were introduced in Sulzer Mellapak X-type. Although these geometrical changes allow a significant increase in the capacity, the percentage of capacity gain was roughly equal to the percentage reduction of mass transfer efficiency, therefore, the styrene monomer purity decreases [6,7]. Styrene monomer concentration for different specific areas and corrugation angles are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…These parameters can be optimized by selecting a suitable structural packed bed. Although the improvement of capacity and column efficiency by structured packing has been known for many years, effective changes in packing geometry have been attempted only recently [6,7]. Many of these modifications refer to optimizing the design at the interface zone between two packing layers [7].…”

Section: Introductionmentioning

confidence: 99%

Effect of Structured Packing Characteristics on Styrene Monomer/Ethylbenzene Distillation Process

Salem

Shokrkar

2008

Chem Eng & Technol

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The application of various types of structured packings to separate styrene monomer/ethyl benzene in packed columns is presented. The investigation was conducted over a wide range of operating conditions such as packing type, pressure, and reflux ratio. Several structured packings were used for separation of styrene monomer/ethyl benzene and the optimum conditions were determined for each of them. The proper condition of separation process and appropriate parameters for achieving better efficiency was discussed. The calculated results were compared with those obtained in industrial scale. It was shown that Mellapak-Plus 252Y and 452Y packings can provide the maximum capacity with an acceptable level of efficiency over a wide range of operating conditions.

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Modifications to Structured Packings to Increase Their Capacity

Cited by 24 publications

References 7 publications

Characterization of New Wire Gauze High‐Capacity Structured Packing with Varied Inclination Angle

Characterization of New Wire Gauze High‐Capacity Structured Packing with Varied Inclination Angle

Tomographic measurement of liquid hold up and effective interfacial area distributions in a column packed with high performance structured packings

Effect of Structured Packing Characteristics on Styrene Monomer/Ethylbenzene Distillation Process

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