SINTESIS Ni/Al2O3-BENTONIT DAN APLIKASINYA UNTUK HIDRORENGKAH KATALITIK MINYAK BIJI NYAMPLUNG (Calophyllum Inophillum Linn) MENJADI BIOFUEL; SYNYHESIS OF Ni/Al2O3-PILLARED BENTONITE AND ITS APPLICATION FOR HYDROCRACKING OF NYAMPLUNG SEED (Calophyllum Inophillum Linn) OIL INTO BIOFUEL

Marini, Asih Tri, Karna Wijaya

2016 | Skripsi | FMIPA

Hydrocracking of “nyamplung” seed oil into biofuel using Ni/Al2O3- bentonite as the catalyst has been conducted. Bentonite was initially activated using HF 1% and H2SO4 0.5 M, after that the activated bentonite was pillarized with Al2O3, the last step of calatyst synthesis process was impregnation of Ni into Al2O3-bentonite to be Ni/Al2O3-bentonite. The material then was analyzed its physico-chemical properties by FTIR, XRD, XRF, BET surface area analyzer methode, TEM, and ammonia adsorbtion. Application of the material as catalyst of nyamplung seed oil hydrocracking process produced biofuel as end product. Product of “nyamplung” seed oil hydrocracking process was analized by GC-MS. The results of analyzes show that the acidity, Al, Si and Ni percentage, basal spacing, surface area, average pore size and total volume pore of bentonite were 64.62 mmol/g, 8.2% Al, 47.9%, Si, 0.20% Ni, 13.058 Å, 79.078 m2/g, 88.9709 Å dan 17.59×10-2 cc/g, respectively. Intercalation by using Al2O3 increased the basal spacing of bentonite into 17.064 Å. Intercalation and impregnation process increasing the acidity, Al, Si and Ni percentage, basal spacing and average pore size of bentonite in amount 64.89 mmol/g, 12% Al, 49.7% Si, 13.3% Ni, 23.417 Å and 140.563 Å. Physico-chemical treatment also caused the surface area and total volume pore were decreased into 37.630 m2/g and 13.22×10-2 cc/g. The result of GC-MS analyzer data shows that hydrocracking “nyamplung” seed oil process produced hydrocarbon with number of carbon chain between C5-C20. Hydrocracking “nyamplung” seed oil process catalyzed using H/bentonit and Ni/Al2O3-bentonite produce biofuel with 39.83% and 60.37% biogasoline yield.

Kata Kunci : Ni/Al2O3-bentonite, biofuel, “nyamplung” seed oil hydrocracking, pillarization, impregnation.