Monoliths with MFI zeolite layers prepared with the assistance of 3D printing: Characterization and performance in the gas phase isomerization of α-pinene

Hędrzak, Elżbieta; Węgrzynowicz, Adam; Rachwalik, R.; Sulikowski, Bogdan; Michorczyk, Piotr

doi:10.1016/j.apcata.2019.04.017

Cited by 24 publications

(17 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar to DIW, 3D printing of scaffolds prepared in this way begins by densifying a printable paste which contains some mixture of inert binders, plasticizers, and solvents, but unlike DIW, structured scaffolds prepared by secondary growth do not utilize a high concentration of the active material to generate functionality. Instead, the printed “support” is a growth seed, such as metal oxide or small quantities of the active material, which allows for coordination of the active layer after initial hardening. ,,− As an alternative, scaffolds can also be formulated via secondary growth by utilizing precursors in conjunction with a template, followed by in situ coordination to produce the active species (Figure b). ,, As yet another alternative, an active species loading can also be deposited onto an inert 3D-printed scaffold by way of dip coating, such as in the case of oxide catalysts deposited onto printed polymer scaffolds (Figure c). In many cases, these approaches can be advantageous to DIW, as they can be used to overcome the binding limitations associated with bulky particulate, especially MOFs and COFs.…”

Section: Printing Strategies Of Structured Adsorbents and Catalystsmentioning

confidence: 99%

Recent Advances in 3D Printing of Structured Materials for Adsorption and Catalysis Applications

et al. 2021

View full text Add to dashboard Cite

Porous solids in the form of adsorbents and catalysts play a crucial role in various industrially important chemical, energy, and environmental processes. Formulating them into structured configurations is a key step toward their scale up and successful implementation at the industrial level. Additive manufacturing, also known as 3D printing, has emerged as an invaluable platform for shape engineering porous solids and fabricating scalable configurations for use in a wide variety of separation and reaction applications. However, formulating porous materials into self-standing configurations can dramatically affect their performance and consequently the efficiency of the process wherein they operate. Toward this end, various research groups around the world have investigated the formulation of porous adsorbents and catalysts into structured scaffolds with complex geometries that not only exhibit comparable or improved performance to that of their powder parents but also address the pressure drop and attrition issues of traditional configurations. In this comprehensive review, we summarize the recent advances and current challenges in the field of adsorption and catalysis to better guide the future directions in shape engineering solid materials with a better control on composition, structure, and properties of 3D-printed adsorbents and catalysts.

show abstract

Section: Printing Strategies Of Structured Adsorbents and Catalystsmentioning

confidence: 99%

Recent Advances in 3D Printing of Structured Materials for Adsorption and Catalysis Applications

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Turpentine is a valuable and renewable natural resource widely used in the medical industry, for the synthesis of new important chemicals foruse as cosmetic, flavours, fragrances, and pharmaceuticals sectors as well as in the synthesis of chemical intermediates [3]. Thus, α-Pinene is considered a versatile building block for the synthesis of high-value added chemicals, mainly through catalytic processes, such as hydration [4,5,6,7,8,9], isomerization [10,11], epoxidation and pinene oxide isomerization [12,13,14], esterification [15,16], and etherification [17,18,19,20,21,22], among others can be applied to obtain a wide variety of added value products.…”

mentioning

confidence: 99%

Potassium Alum [KAl(SO4)2∙12H2O] solid catalyst for effective and selective methoxylation production of alpha-pinene ether products

Wijayati

Lestari

Wulandari

et al. 2021

Heliyon

View full text Add to dashboard Cite

Methoxylation is a relevant technological process applied in the production of high-value α-pinene derivatives.This report investigates the use of potassium alum [KAl(SO 4 ) 2 ⋅ 12H 2 O] as a catalyst in the methoxylation of α-pinene. In this study, the methoxylation reaction was optimized for the highest conversion of α-pinene and selectivity, assessed for the factors, catalyst loading (0.5; 1.0; and 1.5 g), volume ratio of α-pinene: methanol (1:4, 1:7, 1:10), reaction temperature (50, 55, 60 and 65 C), and reaction time (72, 144, 216, 288, 360 min). The highest selectivity of KAl(SO 4 ) 2 •12H 2 O in the methoxylation of α-pinene was achieved under an optimal condition of 1 g of catalyst loading, volume ratio of 1:10, as well as the reaction temperature and incubation time of 65 C and 6 h, respectively. GC-MS results revealed the yields of the methoxylated products from the 98.2% conversion of α-pinene, to be 59.6%, 8.9%, and 7.1% for α-terpinyl methyl ether (TME), fenchyl methyl ether (FME), bornyl methyl ether (BME), respectively. It was apparent that a lower KAl(SO 4 ) 2 •12H 2 O loading (0.5-1.5 g) was more economical for the methoxylation reaction. The findings seen here indicated the suitability of the KAl(SO 4 ) 2 ⋅ 12H 2 O to catalyze the methoxylation of α-pinene to produce an commercially important ethers.

show abstract

“…The results indicated that the methanol conversion on the TMPS catalyst was slightly larger than on the commercial metal fiber sintered catalyst, due to the extended contact time in the TPMS design. [50] Michorczyk et al [48,244] fabricated Al 2 O 3 catalysts with hierarchical channels (Figure 15n), which were utilized in the oxidative coupling of methane. As illustrated in Figure 15n, the channel sizes of the first generation for the T1 and T2 catalysts are 0.6 and 0.3 mm, respectively.…”

Section: Chemical Reactionsmentioning

confidence: 99%

Hierarchically Structured Components: Design, Additive Manufacture, and Their Energy Applications

Wang

Xuan

Zhang

et al. 2021

Adv Materials Technologies

View full text Add to dashboard Cite

term solutions are urgently needed before adequate supply of the renewable energy. [1,2] Improvement of efficiency in the energy production and consumption processes is a key factor to address these problems. Meanwhile, the large reaction rate is a key factor to meet the industrial energy requirements. [1][2][3][4][5] Mass transport intensification is an effective method to improve the efficiency and reaction rate in the adsorptions, chemical reactions, and electrochemical reactions, which plays crucial roles in the gas (H 2 , CH 4 , CO 2 , etc.) storage, [6,7] energy conversion, [8] and energy storage. [3,9,10] Recently, novel batteries [2,3,[11][12][13] and microreactors [8,[14][15][16][17][18] for the gas (H 2 , CH 4 , CO 2 , etc.) storage [6,7] and energy conversion [8] have been developed to meet the requirements of high efficiency and rates. In these devices, the mass transport intensification is particularly important to acquire the high selectivity, large reaction rate, great conversion efficiency. [2,8,19,20] The mass transfer steps in the monolithic adsorbents, structured catalysts, and shaped electrodes are similar. Therefore, it is possible to use an identical term to describe the monolithic adsorbents, structured catalysts, and shaped electrodes for convenience to discuss the mass transfer processes. Herein, we use the hierarchically structured components (HSCs) to describe the structures which are comprised of designed channels and matrix between channels, where the matrix is made from functional materials (ceramics, carbon, metals, etc.) with pores in the size from nanometer to sub-millimeters, as illustrated in Figure 1a. In the flow batteries and fuel cells, the assembly of bipolar plate and electrode is regarded as HSC.Generally, the reactants undergo four steps (distribution, adsorption, acceleration, and reaction) in the HSC, as shown in Figure 1b-e. The distribution starts as soon as the reactant flows into the inlet. In this step, the reactant is distributed across the HSC through the designed channels, as shown in Figure 1b. [21,22] Subsequently the fluid is adsorbed by the macropores (>50 nm) which act as buffers for the reactants in the matrix, shown in Figure 1c. [23] As shown in Figure 1d,e, the reactants are accelerated by the mesopores (2-50 nm) and transferred to the micropores (<2 nm) which provide high surface area for the active sites. [23][24][25] After reaction at the active sites, the products are transferred by the mesopores and macropores to the outlet, successively. [26,27] Therefore, the Pursuing high energy efficiency and reaction rate is an effective direction in mitigating the energy and climate crisis. Mass transfer intensification is a powerful approach to enhance the energy efficiency and reaction rate in the energy conversion and storage processes. The nature-inspired channels are outstanding tools to uniformly distribute the reactants, fast remove products, and reduce the diffusion distance for mass transfer intensification in monolithic adsorbents, structured catal...

show abstract

Monoliths with MFI zeolite layers prepared with the assistance of 3D printing: Characterization and performance in the gas phase isomerization of α-pinene

Cited by 24 publications

References 44 publications

Recent Advances in 3D Printing of Structured Materials for Adsorption and Catalysis Applications

Recent Advances in 3D Printing of Structured Materials for Adsorption and Catalysis Applications

Potassium Alum [KAl(SO4)2∙12H2O] solid catalyst for effective and selective methoxylation production of alpha-pinene ether products

Hierarchically Structured Components: Design, Additive Manufacture, and Their Energy Applications

Contact Info

Product

Resources

About