?url_ver=Z39.88-2004&rft_id=1917011031&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+KOMPOSISI+CaO%2FSiO2+YANG+DISINTESIS+DARI+BATU%0D%0AKAPUR+DAN+BATU+APUNG+TERHADAP+AKTIVITAS+KATALITIK%0D%0ATRANSESTERIFIKASI+MINYAK+BIJI+KARET&rft.creator=NUGRAHA+%2C+BRAMANTHIO+&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=540+Kimia+dan+ilmu+yang+berhubungan&rft.description=Petroleum+fuel+has+the+potential+to+experience+scarcity+because+of+the+large+amount%0D%0Aof+use+and+comes+from+non-renewable+sources.+Alternative+fuels+that+can+be+used%0D%0Aare+biofuels+(biodiesel).+Indonesia%2C+has+great+potential+to+utilize+other+parts+of+the%0D%0Arubber+plant%2C+namely+oil+derived+from+rubber+seeds+as+biodiesel.+An+effective%0D%0Amethod+for+converting+rubber+seed+oil+into+biodiesel+is+transesterification.+The%0D%0Acatalyst+used+to+accelerate+the+conversion+rate+of+rubber+seed+oil+into+biodiesel+in%0D%0Athis+study+was+a+CaO%2FSiO2+catalyst+synthesized+from+limestone+and+pumice.+In+this%0D%0Aresearch%2C+the+composition+of+CaO+to+SiO2+was+varied+(1%3A1%3B+1%3A2%3B+1%3A3%3B+1%3A5%3B+and+1%3A10)%0D%0Awhich+was+calcined+at+800+%C2%B0C.+Characterization+of+CaO%2FSiO2+catalysts+was+carried%0D%0Aout+using+Scanning+Electron+Microscope+(SEM)%2C+X-Ray+Fluorescence+(XRF)%2C%0D%0ABrunauer-Emmett-Teller+(BET)%2C+and+Particle+Size+Analyzer+(PSA).+The+initial%0D%0Atransesterification+in+this+study+was+carried+out+using+various+compositions+of+the%0D%0ACaO%2FSiO2+catalyst.+Transesterification+was+also+carried+out+to+determine+other%0D%0Akinetic+factors+such+as+the+ratio+of+oil+to+methanol%2C+amount+of+catalyst%2C+and+reaction%0D%0Atime.+The+optimum+results+were+obtained+by+using+a+CaO%2FSiO2+heterogeneous%0D%0Acatalyst+with+a+composition+of+1%3A5%2C+using+150+mL+of+methanol+to+25+mL+of+oil+(20%0D%0AmL+of+rubber+seed+oil+and+5+mL+of+coconut+oil)%2C+the+amount+of+catalyst+was+2.5%25%2C%0D%0Athe+reaction+time+was+6+hours%2C+and+addition+of+1+mL+H2SO4+as+a+homogeneous%0D%0Acatalyst.+The+results+obtained+from+the+conversion+of+rubber+seed+oil+into+biodiesel%0D%0Awith+a+percentage+of+100%25.+The+results+of+the+GC-MS+analysis+showed+the%0D%0Aformation+of+methyl+esters+with+the+main+component+being+methyl+oleate.%0D%0AKeywords%3A+biodiesel%2C+transesterification%2C+CaO%2FSiO2+heterogeneous+catalyst.%0D%0A%0D%0ABahan+bakar+minyak+bumi+berpotensi+mengalami+kelangkaan+karena+besarnya%0D%0Apenggunaan+dan+berasal+dari+sumber+yang+tak+terbarukan.+Bahan+bakar+alternatif%0D%0Ayang+dapat+digunakan+adalah+bahan+bakar+nabati+(biodiesel).+Indonesia+sebagai%0D%0Aprodusen+karet%2C+memiliki+potensi+untuk+memanfaatkan+bagian+lain+dari+tanaman%0D%0Akaret%2C+yakni+minyak+yang+berasal+dari+biji+karet+sebagai+biodiesel.+Metode+yang%0D%0Aefektif+untuk+mengubah+minyak+biji+karet+menjadi+biodiesel+adalah%0D%0Atransesterifikasi.+Katalis+untuk+mempercepat+laju+konversi+minyak+biji+karet%0D%0Amenjadi+biodiesel+pada+penelitian+ini+yaitu+katalis+CaO%2FSiO2+yang+disintesis+dari%0D%0Abatu+kapur+dan+batu+apung.+Pada+penelitian+ini+dilakukan+variasi+komposisi+CaO%0D%0Aterhadap+SiO2+(1%3A1%3B+1%3A2%3B+1%3A3%3B+1%3A5%3B+dan+1%3A10)+yang+dikalsinasi+pada+suhu+800+%C2%B0C.%0D%0AKarakterisasi+katalis+CaO%2FSiO2+dilakukan+menggunakan+Scanning+Electron%0D%0AMicroscope+(SEM)%2C+X-Ray+Fluorescence+(XRF)%2C+Brunauer-Emmett-Teller+(BET)%2C%0D%0Adan+Particle+Size+Analyzer+(PSA).+Transesterifikasi+awal+pada+penelitian+ini%0D%0Adilakukan+menggunakan+variasi+komposisi+dari+katalis+CaO%2FSiO2.+Transesterifikasi%0D%0Ajuga+dilakukan+untuk+mengetahui+faktor+kinetis+lain+seperti+rasio+minyak+terhadap%0D%0Ametanol%2C+jumlah+katalis%2C+dan+waktu+reaksi.+Hasil+paling+optimum+diperoleh+dengan%0D%0Apenggunaan+katalis+heterogen+CaO%2FSiO2+berkomposisi+1%3A5%2C+penggunaan+25+mL%0D%0Aminyak+(20+mL+minyak+biji+karet+dan+5+mL+minyak+kelapa)+terhadap+150+mL%0D%0Ametanol%2C+jumlah+katalis+sebesar+2%2C5%25%2C+waktu+reaksi+selama+6+jam%2C+dan+penambahan%0D%0AH2SO4+1+mL+sebagai+katalis+homogen.+Diperoleh+hasil+konversi+minyak+biji+karet%0D%0Amenjadi+biodiesel+dengan+persentase+sebesar+100%25.+Hasil+analisis+GC-MS%0D%0Amenunjukkan+terbentuknya+metil+ester+dengan+komponen+utama+berupa+metil+oleat.%0D%0AKata+kunci+%3A+biodiesel%2C+transesterifikasi%2C+katalis+heterogen+CaO%2FSiO2&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2023-07-21&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F74622%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F74622%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F74622%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++NUGRAHA+%2C+BRAMANTHIO+++(2023)+PENGARUH+KOMPOSISI+CaO%2FSiO2+YANG+DISINTESIS+DARI+BATU+KAPUR+DAN+BATU+APUNG+TERHADAP+AKTIVITAS+KATALITIK+TRANSESTERIFIKASI+MINYAK+BIJI+KARET.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F74622%2F