ABSTRAKTujuan penelitian ini untuk Mengetahui pengaruh penambahan Ni terhadap nilai keasaman, dan Mengetahui kombinasi terbaik katalis dari nikel dan zeolit yang teraktivasi asam sebagai catalitic cracking pada proses pembuatan biodiesel dari minyak biji ketapang. Zeolit diaktivasi dengan menggunakan HCl 4 M. Pembuatan katalis Ni/Zeolit dengan merendam katalis zeolit ke dalam larutan Ni(NO3)2.6H2O dengan variasi konsentrasi 0 %, 5%, dan 10%.Karakterisasi ter-hadap katalis meliputi : XRD,SEM dan FTIR.Hasil Penelitian, data keasaman katalis di-peroleh bahwa penambahan logam Ni semakin meningkatkan nilai keasaman katalis. kombinasi Ni/Zeolit dengan kombinasi terbaikadalah pada 5% Ni/Zeolit. Kata kunci : biodisel, Ni/Zeolit, biji ketapang ABSTRACTThe purpose of this research are to know the effect of addition Ni on the acidity value of Ni/zeolite catalyst and to know the best combination nickel and Zeolit activated by acid as a catalyst of the cracking process during synthesis biodiesel from ketapang seed oil. The Ni/Zeolite catalysts were prepared by immersing the zeolite activated by HCl 4 M into Ni(NO3)2 solution with concentration variation of 0%, 5%, and 10%. The catalysts were characterized using XRD, SEM and FTIR. The results showed that the more Ni the more acidity value of the catalyst. The best quality of biodiesel was synthesized using combination catalysts of 5% Ni/Zeolite activated by acid.
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