Multi-stage dealumination for characteristic engineering of mordenite-clinoptilolite natural zeolite

Wahono, Satriyo Krido; Prasetyo, Dwi Joko; Jatmiko, Tri Hadi; Pratiwi, Diah; Suwanto, Andri; Hernawan,; Vasilev, Krasimir

doi:10.1063/1.5095022

Cited by 13 publications

(12 citation statements)

References 30 publications

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“…In addition, to increase specific surface area, other changes in the material properties also occurred, as supported by a published study on dealumination and calcination treatment effect on natural zeolite. [ 44,45 ] The XRD, SEM, and XRF analyses are shown in Figures 1a, 1b, and 1d, respectively. The SEM images suggest greater porosity at the mesoscale after modification as well as a cleaner structure.…”

Section: Resultsmentioning

confidence: 99%

Amine‐functionalized natural zeolites prepared through plasma polymerization for enhanced carbon dioxide adsorption

Wahono

Dwiatmoko

Cavallaro

et al. 2021

Plasma Processes & Polymers

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Solution‐based amine absorption technologies have been widely applied for CO2 capture, but they have several drawbacks. This paper reports on the synthesis of the first solid‐state amine adsorbent prepared through a simple plasma polymerization and deposition on physicochemically modified natural mordenite–clinoptilolite zeolite. The plasma deposition of amine polymer under certain conditions resulted in a significant increase in surface area‐weighted CO2 adsorption capacity as the natural zeolite. The strength of the interaction between CO2 and the adsorbent was weaker for the plasma polymer‐modified zeolite than without the plasma coating, which may facilitate regeneration. Both indications make the amine plasma polymer‐based zeolite adsorbent a good candidate for CO2 adsorption and separation.

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Section: Resultsmentioning

confidence: 99%

Amine‐functionalized natural zeolites prepared through plasma polymerization for enhanced carbon dioxide adsorption

Wahono

Dwiatmoko

Cavallaro

et al. 2021

Plasma Processes & Polymers

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“…A first extensive screening of the dealumination process was done by the group of Wahono et al. [ 253 ] Herein, several dealumination procedures were performed on natural zeolite, which contained 48% of a crystalline mordenite phase. Following parameters were examined: I) HCl concentration, II) zeolite/acid volume ratio, III) treatment time, IV) agitation, and V) multistage dealumination.…”

Section: Synthesis Of Hierarchical 12‐mr Zeolitesmentioning

confidence: 99%

State of the Art and Perspectives of Hierarchical Zeolites: Practical Overview of Synthesis Methods and Use in Catalysis

et al. 2020

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Zeolites are highly crystalline aluminosilicates with welldefined pores that are constructed of SiO 2 and AlO 4 tetrahedra. These tetrahedra can be linked together in different unique ways to form various materials with a specific topology. [1] According to the International Zeolite Association (IZA), more than 250 different topologies, which are all assigned with a three-letter code, have been identified. [2] The micropores in zeolites are typically constructed from 8, 10, or 12 tetrahedral atoms

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“…Pada penelitian terdahulu pemanfaatan zeolit alam sebagai aditif pada proses peruraian anaerobik sebatas pada pemanfaatan secara langsung (Fernández et al, 2007;Weiß et al, 2013) ataupun dengan impregnasi kation tertentu (Purnomo et al, 2017;Chusna et al, 2020). Sementara itu, zeolit teraktivasi kimia baik dengan metode aktivasi asam maupun basa (Lin et al, 2015;Wahono et al, 2019a) belum banyak dimanfaatkan sebagai aditif pada proses peruraian anaerobik terutama pada kondisi termofilik. Oleh karena itu penelitian ini bertujuan untuk I menginvestigasi efek dari penambahan zeolit alam teraktivasi asam dan basa terhadap performa proses peruraian anaerobik limbah vinasse secara termofilik.…”

Section: Pendahuluanunclassified

“…Aktivasi asam dan basa dilakukan dengan merujuk pada metode aktivasi zeolit alam pada penelitian terdahulu. Pada metode aktivasi asam, zeolit NZ direndam selama 24 jam di dalam larutan HCl dengan konsentrasi 3 M (Wahono et al, 2019a) sedangkan pada metode basa digunakan larutan NaOH 3 M (Lin et al, 2015). Zeolit alam yang telah teraktivasi asam maupun basa selanjutnya disaring dan dicuci dengan akuades sampai cairan mencapai pH netral.…”

Section: Metode Aktivasi Zeolit Alamunclassified

Peruraian Anaerobik Termofilik Limbah Vinasse : Pengaruh Zeolit Alam Teraktivasi Asam dan Basa Terhadap Performa Proses

Prasetyo

Budhijanto²,

Kurnianto³

et al. 2021

j.res.technol.ind.

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Vinasse merupakan limbah produksi bioetanol dengan kadar chemical oxygen demand (COD) tinggi dan dapat diolah melalui peruraian anaerobik untuk menghasilkan biogas. Optimasi proses dapat dilakukan pada kondisi termofilik (55°C) dengan penambahan zeolit alam terkativasi. Penelitian ini bertujuan untuk menginvestigasi efek zeolit alam terkativasi asam dan basa terhadap performa proses peruraian anaerobik termofilik vinasse. Proses aktivasi zeolit alam diawali dengan perendaman selama 24 jam pada larutan asam klorida (HCl) 3 M atau natrium hidroksida (NaOH) 3 M, dilanjutkan pengeringan dan kalsinasi. Selanjutnya zeolit alam tanpa aktivasi (NZ), teraktivasi asam (NZA), dan teraktivasi basa (NZB) ditambahkan pada proses peruraian anaerobik termofilik limbah vinasse secara batch dengan inokulum digested vinasse yang diperoleh dari reaktor skala laboratorium. Hasil penelitian menunjukkan bahwa penambahan NZB mempercepat puncak produksi gas metana (hari ke-9) dibanding NZ (hari ke-12), sedangkan pada NZA tidak terdapat produksi gas metana. Hal ini disebabkan oleh perbedaan pH cairan. Penambahan NZB menyebabkan pH berada pada kisaran nilai optimum sedangkan NZA menyebabkan hasil sebaliknya. Hasil methane yield NZB juga menunjukkan hasil lebih tinggi yakni 84.37 mL-CH 4 /g-sCOD removal dibanding NZ 73.94 dan NZA 0.07. Oleh karena itu, direkomendasikan penambahan zeolite teraktivasi basa untuk meningkatkan performa process peruraian anaerobik termofilik limbah vinasse.

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Multi-stage dealumination for characteristic engineering of mordenite-clinoptilolite natural zeolite

Cited by 13 publications

References 30 publications

Amine‐functionalized natural zeolites prepared through plasma polymerization for enhanced carbon dioxide adsorption

Amine‐functionalized natural zeolites prepared through plasma polymerization for enhanced carbon dioxide adsorption

State of the Art and Perspectives of Hierarchical Zeolites: Practical Overview of Synthesis Methods and Use in Catalysis

Peruraian Anaerobik Termofilik Limbah Vinasse : Pengaruh Zeolit Alam Teraktivasi Asam dan Basa Terhadap Performa Proses

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