Characterization and Activation of Natural Zeolit From Ponorogo

Heraldy, Eddy; Sw, Hisyam; Sulistiyono, Sulistiyono

doi:10.22146/ijc.21891

Cited by 16 publications

(16 citation statements)

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“…The change of the Si/Al ratio in zeolite will have an impact on its ability as a catalyst. Heraldy et al [16] reported that activation of natural zeolite from Ponorogo-Indonesia using HCl could increase the Si/Al ratio from 3.95 to 4.78. Similarly, an increased in Si/Al ratio compounds.…”

Section: Characterization Of Catalystmentioning

confidence: 99%

“…The Si/Al ratio tends to increase along the presence of acid or base from the zeolite activation. On the other hand, KZ-HCl-1 zeolite has the highest Si/Al ratio, which was probably the result of dealumination caused by the presence of HCl as an activating agent [16,24]. When NaOH was used as an activating agent, it caused silica dissolution that lead to changes in the zeolite structure, reducing the silica content in the zeolite framework and thus, decreasing the Si/Al ratio.…”

Section: Characterization Of Catalystmentioning

confidence: 99%

“…Activation of natural zeolite from Ponorogo-Indonesia has been carried out by Heraldy et al [16] by using a number of acids (H 2 SO 4 , HNO 3 , and H 3 PO 4 , and HCl). They reported that zeolit activation using 1 N HCl solution gave a catalyst with higher absorption ability compared with activation by using other acid solutions.…”

Section: Introductionmentioning

confidence: 99%

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Pyrolysis of palm oil using zeolite catalyst and characterization of the boil-oil

Abdullah

Apriyanti

Sunardi

et al. 2019

Green Processing and Synthesis

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Pyrolysis of palm oil is one of the most potential methods to obtain bio-oil. In this study, pyrolysis of palm oil was carried out by using zeolites as a catalyst. The use of HCl and NaOH as activating agents of the zeolites prior to its use in the pyrolysis process was investigated. The result showed that a 1 M concentration of either HCl or NaOH gave an optimum result when the zeolites were used to absorb methylene blue. When 1 M of HCl was used as the activating agent, a more uniform pore size of the zeolites was obtained, along with a more opened pore structure. A GC-MS analysis showed that by using zeolites which was activated using HCl or NaOH, the pyrolysis of palm oil yielded bio-oil with a high content of organic compounds.

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Section: Characterization Of Catalystmentioning

confidence: 99%

Section: Characterization Of Catalystmentioning

confidence: 99%

See 1 more Smart Citation

Pyrolysis of palm oil using zeolite catalyst and characterization of the boil-oil

Abdullah

Apriyanti

Sunardi

et al. 2019

Green Processing and Synthesis

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“…A higher temperature will be increased the molecular kinetic energy, and the adsorption balance will be moved towards desorption. Therefore, a higher temperature can reduce the performance of the catalyst [17]. However, as shown in Figure 3 indicates if the addition of catalyst greater than 15%, the yield of coal oil will increase.…”

Section: Effects Of Catalyst Weight Addition On Coal Oil Yield At Temmentioning

confidence: 99%

The Characteristic of Coal Oil From Catalytic Coal Gasification

Damayanti

Arita

Hadiah

2019

ijfac

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In this work, the catalytic gasification process of coal was studied at different operating temperatures and catalyst weights. The purpose of this study was to study the characteristics of coal oil produced through the gasification process using Nickel Molybdenum (NiMo) catalyst. The effect of adding NiMo catalyst with variations in weight of 0%, 5%, 10% and 15% for different gasification temperatures (375-385 C, 430-440 C, and 475-485 C) were studied on coal with a calorific value of 6,400 kcal/kg. The process was done in fluidized bed reactor under atmospheric pressure and an air flow rate of 2 liters/minute was flow for 60 minutes. The results showed that NiMo is effective as a catalyst in the gasification of coal at 430-440 C, the addition of 15% weight of catalysts produced coal oil with a yield of 9.35% and the composition of hydrocarbon consists of 59.75% of aromatics, 26.42% of aliphatics, and 7.34% of phenolics. Compared to coal oil without catalyst give a yield of 6.56% with 57.33% of aromatics, 17.44% of aliphatics, and 16.03% of phenolics. This showing that NiMo catalysts have a high selectivity to increase aromatic and aliphatic hydrocarbons in coal oil.

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“…Peningkatan keasaman zeolit mampu memperbesar kemampuan penyerapan zeolit. Hal itu terjadi karena banyaknya pori-pori zeolit yang terbuka dan permukaan padatannya menjadi bersih dan luas (Heraldy, et al, 2003).…”

Section: µM µM µM µM µMunclassified

Adsorpsi Unsur Pengotor Larutan Natrium Silikat Menggunakan Zeolit Alam Karangnunggal

Las

Firdiyono

Hendrawan

2011

JKV

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AbstrakPenelitian tentang kemampuan penyerapan zeolit alam Karangnunggal sebagai sorben dalam larutan natrium silikat telah dilakukan. Penelitian ini bertujuan untuk mengetahui efisiensi penyerapan zeolit terhadap unsur pengotor larutan natrium silikat serta mengetahui hubungan penyerapan zeolit dengan beberapa parameter adsorpsi. Untuk itu proses adsorpsi dilakukan dengan beberapa parameter, diantaranya waktu kontak, massa sorben, pH, temperatur. Hasil analisa menggunakan Spektroskopi Serapan Atom (SSA) menunjukkan bahwa zeolit alam Karangnunggal yang diaktivasi dengan H 2 SO 4 dapat digunakan untuk menyerap Fe 3+ dalam larutan natrium silikat. Kondisi optimum penyerapan Fe 3+ dalam larutan natrium silikat dicapai dengan parameter waktu kontak selama 60 menit, massa zeolit yang digunakan sebanyak 3 gram, pH 3, dan pada temperatur ruang. Tetapi zeolit tersebut tidak efektif untuk menyerap Mg 2+ dan Ca 2+ dalam larutan natrium silikat. AbstractResearch studies on the adsorption capacity of Karangnunggal natural zeolite as a sorbent in solution of sodium silicate has been done. This study aims to determine the efficiency of adsorption of the zeolite to a solution of sodium silicate impurity elements and know the relationship between the adsorption of the zeolite with the adsorption parameters. For the adsorption process carried out by several parameters, such as contact time, sorbent mass, pH, temperature. Results of analysis using Atomic Absorption Spectroscopy (AAS) showed that Karangnunggal natural zeolite activated with H 2 SO 4 can be used to adsorb Fe 3+ in sodium silicate solution. The optimum condition of the adsorption of Fe 3+ in sodium silicate solution is achieved with contact time parameters for 60 minutes, the mass of zeolite is used as much as 3 grams, pH 3, and at room temperature. However, these zeolites is not effective to adsorb Mg 2+ and Ca 2+ in a solution of sodium silicate.

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Characterization and Activation of Natural Zeolit From Ponorogo

Cited by 16 publications

References 1 publication

Pyrolysis of palm oil using zeolite catalyst and characterization of the boil-oil

Pyrolysis of palm oil using zeolite catalyst and characterization of the boil-oil

The Characteristic of Coal Oil From Catalytic Coal Gasification

Adsorpsi Unsur Pengotor Larutan Natrium Silikat Menggunakan Zeolit Alam Karangnunggal

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