?url_ver=Z39.88-2004&rft_id=1817011011&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+SUHU+KALSINASI+TERHADAP+AKTIVITAS+CaO%2FSiO2+DENGAN+KOMPOSISI+MASSA+1%3A10+SEBAGAI+KATALIS+TRANSESTERIFIKASI+MINYAK+KELAPA+SAWIT&rft.creator=RANDI+SEPTIANTO%2C+1817011011&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.description=Dalam+penelitian+ini+telah+dilakukan+sintesis+katalis+CaO%2FSiO2+dari+CaCO3+(batu+kapur)+dan+silika+sekam+padi+dengan+komposisi+massa+1%3A10+menggunakan+metode+sol+gel%2C+dan+aplikasinya+sebagai+katalis+dalam+transesterifikasi+minyak+kelapa+sawit+dengan+metanol.+CaCO3+dikalsinasi+600+oC+untuk+mendapatkan+CaO%2C+selanjutnya+katalis+disintesis+dengan+penambahan+CaO+ke+dalam+larutan+silika.+Sebelum+digunakan%2C+katalis+dikalsinasi+dengan+variasi+suhu+500%2C+600%2C+700%2C+800%2C+dan+900+oC+selama+6+jam.+Analisis+XRD+menunjukkan+katalis+yang+dikalsinasi+pada+suhu+500+dan+600+oC+masih+berada+pada+fasa+amorf+sedangkan+pada+suhu+700-900+oC+sudah+terdapat+fasa+kristalin+dan+persen+kristalinitas+tertinggi+yakni+sebesar+41%2C88%25+yaitu+pada+sampel+yang+dikalsinasi+pada+suhu+800+oC.+Analisis+dengan+SEM+mengidentifikasikan+morfologi+ditandai+dengan+adanya+partikel+berbentuk+batang+pada+suhu+kalsinasi+800+oC.+Uji+aktivitas+katalitik+terbaik+pada+reaksi+transesterifikasi+ditunjukkan+oleh+katalis+yang+dikalsinasi+pada+suhu+800+%E2%84%83.+Kondisi+percobaan+transesterifikasi+diperoleh+pada+penggunaan+nisbah+metanol+terhadap+minyak+1%3A10%2C+jumlah+katalis+15%25%2C+dan+waktu+reaksi+6+jam+pada+suhu+70+%E2%84%83%2C+dengan+tingkat+konversi+minyak+menjadi+biodiesel+maksimum+yang+dicapai+adalah+sebesar+48%25.+Hasil+analisis+dengan+GC-MS+menunjukkan+bahwa+biodiesel+terdiri+dari+metil+oleat+dan+metil+palmitat%2C+sesuai+dengan+kandungan+utama+asam+lemak+dalam+minyak+kelapa+sawit.+Karakterisasi+fisik+biodiesel+seperti+densitas+dan+viskositas+belum+memenuhi+standar+SNI+7182%3A2015.%0D%0AKata+kunci%3A+Katalis+CaO%2FSiO2%2C+metode+sol+gel%2C+minyak+kelapa+sawit%2C+transesterifikasi%2C+biodiesel%0D%0A%0D%0A%0D%0AIn+this+research%2C+the+synthesis+of+CaO%2FSiO2+catalyst+from+CaCO3+(limestone)+and+rice+husk+silica+with+a+mass+composition+of+1%3A10+using+the+sol+gel+method+has+been+carried+out%2C+and+its+application+as+a+catalyst+in+the+transesterification+of+palm+oil+with+methanol.+CaCO3+is+calcined+at+600+%EF%82%B0C+to+obtain+CaO%2C+then+the+catalyst+is+synthesized+by+adding+CaO+to+a+silica+solution.+Prior+to+use%2C+the+catalyst+was+calcined+at+various+temperatures+of+500%2C+600%2C+700%2C+800+and+900+%EF%82%B0C+for+6+hours.+XRD+analysis+showed+that+the+catalyst+calcined+at+500+and+600+%EF%82%B0C+was+still+in+the+amorphous+phase%2C+while+at+700-900+%EF%82%B0C+there+was+already+a+crystalline+phase+and+the+highest+percentage+of+crystallinity+was+41.88%25%2C+namely+in+the+sample+calcined+at+800+%EF%82%B0C.+Analysis+by+SEM+identified+morphology+characterized+by+the+presence+of+rod-shaped+particles+at+800+%EF%82%B0C+calcination+temperature.+The+best+catalytic+activity+test+in+the+transesterification+reaction+was+shown+by+the+catalyst+which+was+calcined+at+800+%E2%84%83.+The+transesterification+experimental+conditions+were+obtained+using+a+methanol+to+oil+ratio+of+1%3A10%2C+the+amount+of+catalyst+was+15%25%2C+and+the+reaction+time+was+6+hours+at+70+%E2%84%83%2C+with+the+maximum+conversion+rate+of+oil+to+biodiesel+achieved+being+48%25.The+results+of+the+GC-MS+analysis+show+that+biodiesel+consists+of+methyl+oleate+and+methyl+palmitate%2C+according+to+the+main+content+of+fatty+acids+in+palm+oil.+The+physical+characteristics+of+biodiesel+such+as+density+and+viscosity+do+not+meet+SNI+7182%3A2015+standards.%0D%0AKeywords%3A+CaO%2FSiO2+catalyst%2C+sol+gel+method%2C+palm+oil%2C+transesterification%2C+biodiesel.&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2023-01-19&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F69098%2F1%2F1.%2520ABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F69098%2F2%2F2.%2520SKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F69098%2F3%2F3.%2520SKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++RANDI+SEPTIANTO%2C+1817011011++(2023)+PENGARUH+SUHU+KALSINASI+TERHADAP+AKTIVITAS+CaO%2FSiO2+DENGAN+KOMPOSISI+MASSA+1%3A10+SEBAGAI+KATALIS+TRANSESTERIFIKASI+MINYAK+KELAPA+SAWIT.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C++UNIVERSITAS+LAMPUNG+.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F69098%2F