TY  - GEN
CY  - UNIVERSITAS LAMPUNG
ID  - eprints60947
UR  - http://digilib.unila.ac.id/60947/
A1  - M IBNU SINAGA, 1714051025
Y1  - 2021/11/04/
N2  - Spent Bleaching Earth (SBE) adalah limbah padat dari proses pemurnian Crude
Palm Oil (CPO), yang menimbulkan berbagai permasalahan kompleks pada
lingkungan dan gangguan kesehatan bagi masyarakat di sekitar lahan timbun karena
adanya residu minyak dan logam berat. Residu minyak pada SBE cukup tinggi
mencapai 20-40% dan bersifat nonedible, tetapi dapat diolah menjadi biodiesel.
Penelitian ini bertujuan untuk menguji pengaruh rasio metanol:SBE dan
konsentrasi NaOH terhadap rendemen dan karakteristik biodiesel dari SBE melalui
proses transesterifikasi in situ. Metode penelitian menggunakan Rancangan Acak
Kelompok Lengkap secara faktorial dengan tiga ulangan dan dua faktor yaitu rasio
metanol:SBE (6:1, 7:1, 8:1 dan 9:1) dan konsentrasi NaOH (2% dan 3%). Data
penelitian diuji homogenitasnya dengan uji Barlett dan aditivitasnya dengan uji
Tuckey. Selanjutnya data dianalisis dengan sidik ragam untuk mengetahui
perbedaan antar perlakuan dan diuji menggunakan Ortogonal Polinomial (OP)
untuk melihat tren respon yang diperoleh pada penelitian. Hasil penelitian
menunjukkan bahwa rasio metanol:SBE berpengaruh nyata terhadap rendemen,
bilangan penyabunan dan indeks setana, sedangkan konsentrasi NaOH berpengaruh
nyata terhadap rendemen, bilangan asam, bilangan penyabunan dan indeks setana.
Interaksi kedua faktor tidak berpengaruh terhadap semua parameter. Perlakuan

v

terbaik diperoleh pada perlakuan M4N2 yaitu rasio metanol terhadap SBE 9:1 dan
konsentrasi NaOH 3% yang menghasilkan biodiesel dengan rata-rata rendemen
31,2109%, kadar air 3,3131%, bilangan asam 2,4687 mgKOH/g, bilangan
penyabunan 218,4424% mgKOH/g, bilangan iod 35.5371 gI2/100g dan indeks
setana 63,3413.

Kata kunci: biodiesel, spent bleaching earth, transesterifikasi in situ

Spent Bleaching Earth (SBE) is solid waste from the refining process of Crude Palm
Oil (CPO), which causes various complex problems in the environment and health
problems for communities around the landfill due to the presence of oil residues
and heavy metals. Oil residues in SBE is quite high, reaching 20-40% and it is
nonedible however, it can be processed into biodiesel. The purpose of this study
was to determine the effect of the methanol:SBE ratio and NaOH concentration on
the yield and characteristics of biodiesel from SBE by in situ transesterification
process. The research method used a Factorial Completely Randomized Block
Design with three replications and two factors, namely the ratio of methanol:SBE
(6:1, 7:1, 8:1, and 9:1) and the concentration of NaOH catalyst (2% and 3%). The
research data was tested for its homogenity with the Barlett test and its additivity
with the Tuckey test. Furthermore, the data were analyzed by analysis of variance
to see the difference between treatments and further tested using Orthogonal
Polynomial (OP) to see the response trend obtained in the studys. The results
showed that the ratio of methanol:SBE significantly affected the yield,
saponification number and cetane index, while the concentration of NaOH
significantly affected the yield, acid number, saponification number and cetane
index. The interaction of the two factors does not affect all parameters. The best

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treatment was obtained in the M4N2 treatment, namely the ratio of methanol to
SBE 9:1 and NaOH concentration of 3% which produced biodiesel with an average
yield of 31.2109%, water content 3.3131%, acid number 2.4687 mgKOH/g,
saponification number 218.4424% mgKOH/g, iodine number 35.5371 gI2/100g
and cetane index 63.3413.

Keywords: biodiesel, spent bleaching earth, in situ transesterification
PB  - Fakultas Pertanian
TI  - PROSES TRANSESTERIFIKASI IN SITU SPENT BLEACHING EARTH
(SBE) UNTUK PRODUKSI BIODIESEL: PENGARUH RASIO METANOL

DAN KONSENTRASI KATALIS NaOH
AV  - restricted
ER  -