Performance study of multistage membrane and hybrid distillation processes for propylene/propane separation

Park, Jaedeuk; Kim, Ki Woong; Shin, Jae–Heon; Tak, Kyungjae; Park, Yong‐Ki

doi:10.1002/cjce.22914

Cited by 18 publications

(10 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This allows separation to be enhanced and, in some cases, break the azeotrope in nonideal mixtures. [5,6] The HDPS performs better than conventional distillation schemes in separating close boiling point and nonideal mixtures. For instance, a reduction in energy consumption and operating cost, and the fact that an entrainer is not required are some of the benefits of a HDPS in comparison to conventional distillation.…”

mentioning

confidence: 99%

Analysis of a hybrid distillation‐pervaporation column in a single unit: Intermediate membrane section in the rectifying and stripping section

León

Fontalvo

2020

Can J Chem Eng

View full text Add to dashboard Cite

Distillation‐pervaporation in a single unit (DPSU) column can perform separations that are not possible in conventional distillation by overcoming distillation boundaries. Unlike conventional hybrid distillation‐pervaporation columns, in a DPSU system the pervaporation membrane is located inside the column. The separation by distillation and pervaporation is carried out simultaneously inside the same column section. In a previous work, a simplified model was used to design and analyze distillation‐pervaporation in a single unit (DPSU) systems with a hybrid rectifying‐pervaporation section, where the membrane constitutes the whole section. In this study, this simplified model is applied to DPSU columns where the membrane partially constitutes the rectifying or the stripping sections, including the model derivation of the stripping section and the operation leaves. The simplified model is applied for the separation of two mixtures with different Serafimov's topology classifications: acetone‐isopropanol‐water (topology type 1.0‐2) and ethyl acetate‐ethanol‐methanol (topology type 2.0‐2b). Thermodynamic limitations are identified for the separation of the ethyl acetate‐ethanol‐methanol mixture. Multiple operation leaves are produced depending on the liquid composition at the beginning of the membrane section, hindering the conditions that help to overcome the distillation boundary through a DPSU column. For some conditions, a section that is partially constituted by a membrane performs better than if the membrane constitutes the whole section.

show abstract

mentioning

confidence: 99%

Analysis of a hybrid distillation‐pervaporation column in a single unit: Intermediate membrane section in the rectifying and stripping section

León

Fontalvo

2020

Can J Chem Eng

View full text Add to dashboard Cite

show abstract

“…However, the critical conditions must be controlled to suppress the possible generation of interfacial voids. Recently, the concept of in-situ growth of MOFs in a polymer matrix was proposed for the fabrication of MMMs for gas separation [ 78 , 79 , 80 ]. As revealed in Figure 9 , four steps are required: polymer hydrolysis, ion exchange, ligand treatment, and imidization for the in situ formation of MMMs [ 77 ].…”

Section: Current Membrane Materials For C 3 H 6 /C 3 H 8 Sepamentioning

confidence: 99%

Recent Progress in a Membrane-Based Technique for Propylene/Propane Separation

Guo

Kanezashi

2021

Membranes

View full text Add to dashboard Cite

The similar physico-chemical properties of propylene and propane molecules have made the separation process of propylene/propane challenging. Membrane separation techniques show substantial prospects in propylene/propane separation due to their low energy consumption and investment costs, and they have been proposed to replace or to be combined with the conventional cryogenic distillation process. Over the past decade, organosilica membranes have attracted considerable attention due to their significant features, such as their good molecular sieving properties and high hydrothermal stability. In the present review, holistic insight is provided to summarize the recent progress in propylene/propane separation using polymeric, inorganic, and hybrid membranes, and a particular inspection of organosilica membranes is conducted. The importance of the pore subnano-environment of organosilica membranes is highlighted, and future directions and perspectives for propylene/propane separation are also provided.

show abstract

“…6 and C 3 H 8 increased with the enhancement of feed gas pressure (2-5 Bar), while the C 3 H 6 /C 3 H 8 selectivity appeared a downward trend. On the one hand, according to the solution-diffusion model (FigureS11), the Si and Di of C 3 H 6 and C 3 H 8 all increased with the enhancement of feed gas pressure which resulted in an enhancement permeability of propylene and propane.…”

mentioning

confidence: 94%

“…Membrane-based gas separation with small-footprint, low energy consumption and easy operation, 5 was paid more attention for C 3 H 6 /C 3 H 8 separations. [6][7][8][9][10][11][12][13] Many kinds of membranes have been reported for propylene/propane separation, such as polymer, 7,14,15 MOFs, 9,16,17 carbon molecular sieves (CMS), [18][19][20] and facilitated transport membrane. [21][22][23] Nevertheless, polymeric membrane suffers from a well-known trade-off effect between permeability and selectivity, making it difficult to achieve high permeability and selectivity simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Enhanced propylene/propane separation in facilitated transport membranes containing multisilver complex

Cong

Shan

et al. 2021

AIChE Journal

View full text Add to dashboard Cite

Facilitated transport membrane containing a zero complex Ag 4 tz 4 and 6FDA-TMPDA was fabricated via a solution-casting method and their separation performance toward C 3 H 6 /C 3 H 8 was investigated. Ag 4 tz 4 complexes were well dispersed in the polymeric matrix owing to the weak hydrogen bond between Ag 4 tz 4 and 6FDA-TMPDA which can efficiently improve their interface compatibility. The reversible π complexation between C 3 H 6 and Ag + facilitates the C 3 H 6 transport in membranes, which is beneficial to achieve high C 3 H 6 /C 3 H 8 permselectivity according to the density functional theory calculation. Remarkably, the best separation performance was achieved by the 10 wt% Ag 4 tz 4 membrane, for which the C 3 H 6 permeability is 22 Barrer and the C 3 H 6 /C 3 H 8 selectivity reaches up to 43, surpassing the Robeson upper bound. In addition, the membranes also exhibit great long-term stability (>120 h). The excellent separation performance together with the long-term stability render the membrane to be an interesting candidate for C 3 H 6 /C 3 H 8 separation.

show abstract

Performance study of multistage membrane and hybrid distillation processes for propylene/propane separation

Cited by 18 publications

References 56 publications

Analysis of a hybrid distillation‐pervaporation column in a single unit: Intermediate membrane section in the rectifying and stripping section

Analysis of a hybrid distillation‐pervaporation column in a single unit: Intermediate membrane section in the rectifying and stripping section

Recent Progress in a Membrane-Based Technique for Propylene/Propane Separation

Enhanced propylene/propane separation in facilitated transport membranes containing multisilver complex

Contact Info

Product

Resources

About