KONTROL SELEKTIFITAS KATALIS ALLOY DUA LOGAM Ni-Ag PADA HIDROGENASI FURFURAL MENJADI FURFURIL ALKOHOL DAN TETRAHIDROFURFURIL ALKOHOL

Rodiansono Rodiansono, Maria Dewi Astuti, Uripto Trisno Santoso, Azidi Irwan, Dwi Rasy Mujiyanti, Risnu Aritofa, Karlini Karlini, Abdurahman Abdurahman, Adi Maulana

Abstract


Kontrol selektifitas katalis alloy dua logam Ni-Ag ruah dan terembankan telah diselidiki secara sistematik dengan cara mengevaluasi pengaruh variasi rasio molar Ni/Ag, temperatur hidrotermal, waktu hidrotermal, dan pemilihan padatan pengemban yang sesuai dalam reaksi hidrogenasi selektif furfural. Rasio molar divariasi dari 0,75; 1,5; 2,0; dan 3;0, variasi temperatur hidrotermal dari 373 K, 423 K, dan 473 K selama 24 jam, sedangkan waktu hidrotermal divariasi dari 2-8 jam pada temperatur hidrotermal 523 K. Empat jenis padatan pengemban yang berbeda yaitu titanium oksida (TiO2), karbon aktif (C), gamma-alumina (g-Al2O3), dan aluminium hidroksida (AlOH) telah digunakan untuk katalis alloy Ni-Ag(3.0). Katalis Ni-Ag dengan rasio molar Ni/Ag = 1,5 dan 3,0 memiliki aktifitas dan selektifitas yang paling baik dalam reaksi hidrogenasi furfural menjadi furfuril alkoho dan tetrahidrofurfuril alkohol. Kenaikan temperatur hidrotermal dalam proses sintesis katalis Ni-Ag dan perubahan waktu hidrotermal untuk temperatur 523 K tidak secara signifikan meningkatkan kinerja katalis Ni-Ag(1,5) untuk reaksi yang sama. Katalis Ni-Ag(3.0) yang termbankan pada TiO2 memiliki aktifitas dan selektifitas yang superior dibandingkan dengan ruah dan pengemban yang lain.


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DOI: http://dx.doi.org/10.20527/jstk.v12i2.4822

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Department of Chemistry
Faculty of Mathematics and Natural Sciences
Universitas Lambung Mangkurat
Jl. A. Yani KM. 36 Banjarbaru 70714, Indonesia
Email: [email protected]
ISSN: 1411-1616 E-ISSN: 2549-8215

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