?url_ver=Z39.88-2004&rft_id=1417011067&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PEMANFAATAN+ZEOLIT+ALAM+LAMPUNG+SEBAGAI%0D%0AKATALIS+ASAM+PADA+REAKSI+TRANSESTERIFIKASI+BIODIESEL%0D%0ADARI+MINYAK+KELAPA&rft.creator=LUCIA+ARUM+HARTATY%2C+1417011067&rft.subject=QD+Chemistry&rft.description=Pada+penelitian+ini%2C+telah+dilakukan+pemanfaatan+zeolit+alam+Lampung+(ZAL)%0D%0Asebagai+katalis+asam+(H-ZAL)+pada+reaksi+transesterifikasi+biodiesel+dari+minyak%0D%0Akelapa.+ZAL+diaktivasi+pada+suhu+800+oC+mempunyai+luas+permukaan+yang+besar%0D%0Ayaitu+sebesar+19%2C263+m2%2Fg+berdasarkan+karakterisasi+dengan+metode+Brunauer-%0D%0AEmmett-Teller+(BET).+Selanjutnya+ZAL+dilakukan+proses+pertukaran+ion%0D%0Amenggunakan+larutan+NH4NO3+2+M+dengan+variasi+waktu+24%2C+48%2C+dan+72+jam%0D%0Asehingga+diperoleh+H-ZAL+dan+digunakan+sebagai+katalis+dalam+proses%0D%0Atransesterifikasi+minyak+kelapa.+Hasil+transesterifikasi+menunjukkan+bahwa+katalis%0D%0AH-ZAL+dengan+proses+pertukaran+ion+selama+48+jam+memiliki+aktivitas+katalitik%0D%0Ayang+terbaik+dengan+persentase+konversi+sebesar+47+%25.+Analisis+Gas%0D%0AChromathography-Mass+Spectroscopy+(GC-MS)+diketahui+bahwa+biodiesel+yang%0D%0Adihasilkan+terdiri+dari+delapan+senyawa+metil+ester+dengan+komposisi+tertinggi%0D%0Aadalah+metil+laurat+dengan+jumlah+relatif+sebesar+51%2C81%25+yang+sesuai+dengan%0D%0Akandungan+asam+lemak+dalam+minyak+kelapa.+Hasil+Karakterisasi+X-Ray%0D%0AFluoresence+(XRF)+menunjukkan+bahwa+unsur+logam+seperti+K%2C+Ca%2C+dan+Mg+pada%0D%0Akatalis+H-ZAL+mengalami+pengurangan+persentase+akibat+proses+pertukaran+ion.%0D%0AHasil+Karakterisasi+X-Ray+Diffraction+(XRD)+menunjukkan+bahwa+katalis+H-ZAL%0D%0Aterdapat+fasa+kristalin+dengan+kandungan+mineral+terdiri+dari+klipnotilolit+dan%0D%0Amordenit.+Karakterisasi+dengan+Scanning+Electron+Microscopy+(SEM)+-Energy%0D%0ADispersive+X-ray+(EDX)+menunjukkan+bahwa+katalis+H-ZAL+merupakan+bahan%0D%0Aberpori+yang+homogen+dan+unsur+yang+terkandung+adalah+Si%2C+Al%2C+K%2C+Ca%2C+Mg%2C+Fe%2C%0D%0ABa+dan+O.+Spektrum+Fourier+Transform+Infrared+(FTIR)+menunjukkan+bahwa%0D%0Akatalis+H-ZAL+mengandung+jenis+situs+asam+Br%C3%B8nsted-Lowry.%0D%0AKata+kunci+%3A+zeolit+alam+Lampung+(ZAL)%2C+pertukaran+ion%2C+H-ZAL%2C%0D%0Atransesterifikasi%2C+Br%C3%B8nsted-Lowry%0D%0A%0D%0Aabstract%0D%0A%0D%0AIn+this+research%2C+the+utilization+of+natural+zeolite+of+Lampung+(ZAL)+as+acid%0D%0Acatalyst+(H-ZAL)+in+transesterification+reaction+of+biodiesel+from+coconut+oil.%0D%0AZAL+was+activated+at+800+oC+had+a+large+surface+area+of+19.263+m2%2Fg+based+on+the%0D%0Aresults+obtained+using+BET+method.+Thereafter%2C+ZAL+performed+ion+exchange%0D%0Aprocess+using+NH4NO3+2+M+solution+with+variation+of+time+24%2C+48%2C+and+72+hours+to%0D%0Aobtain+H-ZAL+and+used+as+catalyst+in+transesterification+process+of+coconut+oil.%0D%0AThe+transesterification+results+showed+that+the+H-ZAL+catalyst+with+ion-exchange%0D%0Aprocess+for+48+hours+had+the+optimum+catalytic+activity+with+a+conversion%0D%0Apercentage+of+47%25.+GC-MS+analysis+of+biodiesel+revealed+of+eight+methyl+esters%0D%0Awith+the+highest+composition+were+methyl+laurate+with+a+relative+amount+of%0D%0A51.81%25+correspond+with+fatty+acids+in+coconut+oil.+The+results+of+XRF+showed%0D%0Athat+metal+elements+such+as+K%2C+Ca%2C+and+Mg+on+the+H-ZAL+catalyst+experience+a%0D%0Apercentage+reduction+due+to+the+ion+exchange+process.+The+results+of+XRD+showed%0D%0Athat+in+H-ZAL+catalyst+composed+of+a+crystalline+phase+with+mineral+content+of%0D%0Aclipnotilolite+and+mordenite.+The+result+of+SEM-EDX+showed+that+H-ZAL+catalyst%0D%0Ais+a+homogeneous+porous+material+and+the+elements+contained+are+Si%2C+Al%2C+K%2C+Ca%2C%0D%0AMg%2C+Fe%2C+Ba+and+O.+The+FTIR+spectrum+showed+the+H-ZAL+catalyst+contains+a%0D%0Atype+of+Br%C3%B8nsted-Lowry+acid+site.%0D%0AKeyword+%3A+Lampung+natural+zeolit+(ZAL)%2C+ion+exchange%2C+H-ZAL%2C%0D%0Atransesterefication%2C+Br%C3%B8nsted-Lowry&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM&rft.date=2018-08-13&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F33003%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F33003%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F33003%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++LUCIA+ARUM+HARTATY%2C+1417011067++(2018)+PEMANFAATAN+ZEOLIT+ALAM+LAMPUNG+SEBAGAI+KATALIS+ASAM+PADA+REAKSI+TRANSESTERIFIKASI+BIODIESEL+DARI+MINYAK+KELAPA.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F33003%2F