?url_ver=Z39.88-2004&rft_id=1817011042&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+SUHU+KALSINASI+TERHADAP+AKTIVITAS+CaO%2FSiO2+DENGAN+KOMPOSISI+MASSA+1%3A3+SEBAGAI+KATALIS+TRANSESTERIFIKASI+MINYAK+KELAPA+SAWIT&rft.creator=Nurkhalisah%2C+.&rft.subject=001+Ilmu+pengetahuan&rft.subject=500+ilmu+pengetahuan+alam+dan+matematika&rft.subject=540+Kimia+dan+ilmu+yang+berhubungan&rft.description=Pada+penelitian+ini+telah+dilakukan+sintesis+katalis+CaO%2FSiO2+dari+CaCO3+(batu+kapur)+dan+silika+sekam+padi+dengan+komposisi+massa+1%3A3+dengan+metode+sol+gel%2C+dan+aplikasinya+untuk+transesterifikasi+minyak+kelapa+sawit+dengan+metanol.+CaCO3+dikalsinasi+pada+suhu+600%E2%84%83+agar+CaCO3+terdekomposisi+menjadi+CaO%2C+selanjutnya+katalis+disintesis+dengan+penambahan+CaO+ke+dalam+larutan+silika.+Sebelum+digunakan%2C+katalis+CaO%2FSiO2+dikalsinasi+dengan+variasi+suhu+500%2C+600%2C+700%2C+800+dan+900%E2%84%83+selama+6+jam.+Analisis+XRD+menunjukkan+katalis+yang+dikalsinasi+pada+suhu+500+dan+600%E2%84%83+masih+berada+pada+fasa+amorf+sedangkan+pada+suhu+700-900%E2%84%83+sudah+berada+pada+fasa+kristalin+dan+persen+kristalinitas+tertinggi+yakni+sebesar+29%2C96%25+yang+terdapat+pada+sampel+katalis+suhu+kalsinasi+800%E2%84%83.+Analisis+dengan+SEM+mengidentifikasikan+morfologi+ditandai+dengan+adanya+granula+dan+partikel-partikel+kecil+disekeliling+granula+pada+suhu+kalsinasi+800%E2%84%83.+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+8%3A1%2C+jumlah+katalis+20%25%2C+dan+waktu+reaksi+10+jam+pada+suhu+70%E2%84%83+dengan+tingkat+konversi+minyak+menjadi+biodiesel+maksimum+yang+dicapai+adalah+sebesar+74%25.+Hasil+analisis+dengan+GC-MS+menunjukkan+bahwa+biodiesel+tidak+seluruhnya+terbentuk+menjadi+metil+ester.+Karakterisasi+fisik+biodiesel+seperti+densitas+dan+viskositas+belum+memenuhi+standar+SNI+7182%3A2015.%0D%0A%0D%0AKata+Kunci%3A+katalis+CaO%2FSiO2%2C+metode+sol+gel%2C+minyak+kelapa+sawit%2C+transesterifikasi%2C+biodiesel%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AIn+this+study%2C+the+synthesis+of+CaO%2FSiO2+catalyst+from+CaCO3+(limestone)+and+rice+husk+silica+with+a+mass+composition+of+1%3A3+by+sol+gel+method+was+carried+out%2C+and+its+application+for+transesterification+of+palm+oil+with+methanol.+CaCO3+was+calcined+at+600%E2%84%83+so+that+CaCO3+decomposed+into+CaO%2C+then+the+catalyst+was+synthesized+by+adding+CaO+into+silica+solution.+Before+use%2C+the+catalyst+CaO%2FSiO2+was+calcined+with+temperature+variations+of+500%2C+600%2C+700%2C+800+and+900%E2%84%83+for+6+hours.+XRD+analysis+shows+that+the+catalyst+calcined+at+500+and+600%E2%84%83+is+still+in+the+amorphous+phase+while+at+700-900%E2%84%83+it+is+already+in+the+crystalline+phase+and+the+highest+percentage+of+crystallinity+is+29.96%25+which+is+found+in+the+800%E2%84%83+calcination+temperature+catalyst+sample.+SEM+analysis+identified+the+morphology+characterized+by+the+presence+of+granules+and+small+particles+around+the+granules+at+a+calcination+temperature+of+800%E2%84%83.+The+best+catalytic+activity+test+in+the+transesterification+reaction+was+shown+by+the+catalyst+calcined+at+800%E2%84%83.+The+experimental+conditions+of+transesterification+were+obtained+by+using+oil+to+methanol+ratio+of+8%3A1%2C+catalyst+amount+of+20%25%2C+and+reaction+time+of+10+hours+at+70%E2%84%83+with+the+maximum+conversion+rate+of+oil+to+biodiesel+achieved+was+74%25.+GC-MS+analysis+showed+that+biodiesel+was+not+completely+formed+into+methyl+esters.+Physical+characterization+of+biodiesel+such+as+density+and+viscosity+has+not+met+the+standards+of+SNI+7182%3A+2015.%0D%0A%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=2023-04-13&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F71695%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F71695%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F71695%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Nurkhalisah%2C+.++(2023)+PENGARUH+SUHU+KALSINASI+TERHADAP+AKTIVITAS+CaO%2FSiO2+DENGAN+KOMPOSISI+MASSA+1%3A3+SEBAGAI+KATALIS+TRANSESTERIFIKASI+MINYAK+KELAPA+SAWIT.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F71695%2F