n-Hexane Isomerization Over Nickel-Containing Mordenite Zeolite

Patrylak, Lyubov; Krylova, Mariya; Pertko, Olexandra; Voloshyna, Yuliya; Yakovenko, A. V.

doi:10.23939/chcht14.02.234

Cited by 14 publications

(6 citation statements)

References 21 publications

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“…The results of measurements of surface area, pore diameter, and total catalyst volume are summarized in Table 3. Surface area, pore volume and pore diameter changed after impregnation with metal [18][19][20]. These data illustrate that the catalyst with one impregnated metal has a narrower pore diameter but a deeper volume, on the other hand the catalyst with two impregnated metals undergoes changes with a larger pore diameter but a shallower volume.…”

Section: Adsorption-desorption Isotherm Of N2 Gasmentioning

confidence: 76%

Characterization of sarulla natural zeolite activated with various acid concentration and loaded with Ni and Ni-Mo metals as bifunctional catalysts

Sihombing

Ginting

Amdayani

et al. 2022

J. Phys.: Conf. Ser.

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Metal loading on zeolite to produce bifunctional catalysts is reported to increased the characteristics of zeolites which synergistically increase their catalytic activity. Sarulla natural zeolite (SNZ) from North Sumatera has the potential as a catalyst because of its excellent chemical properties including acidity, thermal stability, and large pores. On the other hand, natural zeolite contains a lot of impurities and lower acidity density so that it needs to be processed before use. In this research, modification of the acidity density of zeolite and metal loading were expected to improve the characteristics of SNZ as a catalyst. To achieved this goal, the research methods carried out include preparation, activation process with mineral acid with various concentrations of 3M, 5M, and 7M, then calcination with N2 gas flow. Ni and NiMo loading by wet impregnation method followed by oxidation and reduction with O2 and H2 gas flow, respectively. Some important properties of the catalyst were characterized by XRD, SEM, and determination of surface area by BET method. Ni/SNZ-7 catalyst showed the largest spesific surface area (92 m2/g), the least impurities (3%), and the most homogeneous surface morphology compared to other catalysts. The deposition of two metals in the zeolite generally causes an increase in the pore diameter and crystallinity degree, while decreasing in the pore volume of catalyst.

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Section: Adsorption-desorption Isotherm Of N2 Gasmentioning

confidence: 76%

Characterization of sarulla natural zeolite activated with various acid concentration and loaded with Ni and Ni-Mo metals as bifunctional catalysts

Sihombing

Ginting

Amdayani

et al. 2022

J. Phys.: Conf. Ser.

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“…It was found also that zeolite Ni-HZSM-5 performs better than Ni-HMOR. [9][10][11] The maximum isomer yields of 10-12 wt % and 30-40 wt % for 1-5 wt % of Ni content on Ni-HMOR and Ni-HZSM-5, respectively, were established at 250-300 o C. It seems also that the optimal content of Ni is 1-1.5%.…”

Section: Introductionmentioning

confidence: 85%

n-Alkanes hydroisomerization on Ni-HMFI zeolites of different preparation methods

Patrylak,

Voloshyna,

Pertko

et al. 2024

Preprint

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“…Activated with methylaluminoxane α-diimine nickel 83 or o-diethyland o-diisopropyl nickel 84 demonstrated high catalytic activity towards olefin polymerization. Today NiNPs 85,86 are more often used as catalyst in organic chemistry instead of well-known Ni complexes. Catalytic activity and stability of amorphous and crystalline NiNPs with the surface area of 250 and 110 m 2 /g, respectively, was investigated at different time on stream (TOS) for ethanol decomposition.…”

Section: Catalysis In Organic Chemistry With Nanostructured Nimentioning

confidence: 99%

Optimization of Epoxidation Palm-Based Oleic Acid to Produce Polyols

Jalil¹,

Rasnan²,

Yamin³

et al. 2022

ChChT

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Optimization of epoxidation by using response surface methodology (RSM) based on three-level three-factorial central composite design (CCD) was used. Response percentage of relative oxirane content (%RCO) was studied to determine the optimum reaction condition for production of polyols. The predicted value of model (85 %) was excellent in accordance to experimental value (81 %). All parameters (temperature, molar ratio of formic acid to oleic acid and molar ratio of hydrogen peroxide to oleic acid) were significant in influencing the course of epoxidation reaction (p < 0.05). The interaction between all parameters is also highly significant with p < 0.0001. Optimum reaction conditions obtained from RSM were as follows: the temperature 318 K, molar ratio of formic acid to oleic acid 1.64:1 and molar ratio of hydrogen peroxide to oleic acid 2:1. The epoxidation of palm oleic acid was carried out by using in situ performic acid. FTIR analysis showed the formation of epoxy functional groups at optimum reaction condition at the wavelength of 1340 cm-1. This epoxide group was used to produce polyols by using hydroxylation process and the polyols functional group was detected at the wavelength of 816 cm-1

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n-Hexane Isomerization Over Nickel-Containing Mordenite Zeolite

Cited by 14 publications

References 21 publications

Characterization of sarulla natural zeolite activated with various acid concentration and loaded with Ni and Ni-Mo metals as bifunctional catalysts

Characterization of sarulla natural zeolite activated with various acid concentration and loaded with Ni and Ni-Mo metals as bifunctional catalysts

n-Alkanes hydroisomerization on Ni-HMFI zeolites of different preparation methods

Optimization of Epoxidation Palm-Based Oleic Acid to Produce Polyols

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