?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=STUDI+PENAMBAHAN+ASAP+CAIR+PELEPAH+KELAPA+SAWIT+(Elaeis+%0D%0Aguineensis+J.)+SEBAGAI+INHIBITOR+KERAK+KALSIUM+SULFAT+%0D%0A(CaSO4)+MENGGUNAKAN+METODE+UNSEEDED+EXPERIMENT&rft.creator=NADYA+SYARIFATUL+FAJRIYAH%2C+1517011133&rft.subject=+&rft.description=Permasalahan+pada+sebagian+besar+industri+yang+ada+di+Indonesia+terutama+%0D%0Aindustri+minyak+dan+gas+adalah+terjadinya+penumpukan+kerak+pada+pipa.+Oleh+%0D%0Akarena+itu%2C+dalam+penelitian+ini+telah+dilakukan+pengujian+inhibitor+asap+cair+%0D%0Apelepah+kelapa+sawit+pada+kerak+kalsium+sulfat+(CaSO4)+menggunakan+metode+%0D%0Aunseeded+experiment+pada+variasi+konsentrasi+larutan+pertumbuhan+CaSO4+sebesar+%0D%0A0%2C025%3B+0%2C038%3B+0%2C050%3B+dan+0%2C063+M+serta+variasi+penambahan+inhibitor+dari+5%2C+15%2C+25+%0D%0Adan+35+%25.+Efektivitas+tertinggi+terjadi+pada+konsentrasi+larutan+pertumbuhan+%0D%0Akristal+CaSO4+0%2C025+M+dan+konsentrasi+inhibitor+yang+ditambahkan+25+%25%2C+%0D%0Adiperoleh+persen+efektivitas+sebesar+54%2C72+%25.+Berdasarkan+analisis+menggunakan+%0D%0Ascanning+electron+microscopy+(SEM)+dan+x-ray+diffraction+(XRD)+menunjukkan+%0D%0Abahwa+kristal+CaSO4+tanpa+penambahan+inhibitor+berukuran+besar%2C+lebar%2C+padat+%0D%0Adan+panjang+seperti+batang+serta+terdiri+dari+fase+gipsum+dan+basanit+sedangkan+%0D%0Adengan+penambahan+inhibitor%2C+kristal+CaSO4+berukuran+lebih+kecil%2C+panjang+%0D%0Aseperti+batang+dan+terdapat+sedikit+yang+berbentuk+seperti+serabut+serta+terdiri+dari+%0D%0Akristal+fase+gipsum%2C+basanit+dan+sedikit+anhidrit.+Analisis+kuantitatif+%0D%0Amenggunakan+particle+size+analyzer+(PSA)+menunjukkan+bahwa+distribusi+ukuran+%0D%0Apartikel+kristal+CaSO4+dengan+penambahan+inhibitor+menjadi+lebih+kecil+daripada+%0D%0Atanpa+penambahan+inhibitor+dengan+nilai+rata-rata+(mean)+ukuran+partikel+dari+%0D%0A29%2C68+menjadi+16%2C26+%C2%B5m.+Dengan+demikian%2C+asap+cair+pelepah+kelapa+sawit+dapat+%0D%0Adigunakan+untuk+menghambat+pertumbuhan+kerak+CaSO4.%0D%0AKata+kunci+%3A+Asap+cair+pelepah+kelapa+sawit%2C+CaSO4%2C+kerak%2C+inhibitor+%0D%0AThe+problem+on+several+industries+in+Indonesia%2C+especially+on+oil+and+gas+industry+%0D%0Ais+the+occurrence+of+scaling+deposit+on+the+pipe.+Therefore%2C+in+this+research%2C+the+%0D%0Aliquid+smoke+of+oil+palm+midrib+was+tested+as+an+inhibitor+to+inhibit+calcium+%0D%0Asulfate+(CaSO4)+scale+formation+by+using+the+unseeded+experiment+method+in+the%0D%0Avariation+concentration+of+CaSO4+growth+solutions+of+0.025%3B+0.038%3B+0.050%3B+and+%0D%0A0.063+M+with+variation+concentration+of+inhibitors+from+5%2C+15%2C+25+and+35%25.+The+%0D%0Ahighest+effectiveness+occurred+at+the+concentration+of+CaSO4+crystal+growth+%0D%0Asolution+0.025+M+with+the+addition+of+25+%25+inhibitor%2C+with+effectiveness+percent+%0D%0Aof+54.72+%25.+Based+on+analysis+using+scanning+electron+microscopy+(SEM)+and+x%EF%BF%BDray+diffraction+(XRD)+showed+that+CaSO4+crystals+without+the+addition+of+%0D%0Ainhibitor+are+large%2C+wide%2C+dense+and+long+(like+a+stem)+and+consisted+of+gypsum+%0D%0Aand+basanite+phases+while+with+the+addition+of+inhibitor%2C+CaSO4+crystals+are+%0D%0Asmaller%2C+long+(like+a+stem)+and+there+is+a+little+that+is+shaped+like+a+fiber+and+%0D%0Aconsisted+of+gypsum%2C+basanite+and+slightly+anhydrite+crystal+phases.+Quantitative+%0D%0Aanalysis+using+a+particle+size+analyzer+(PSA)+showed+that+the+particle+size+%0D%0Adistribution+of+CaSO4+crystals+with+the+addition+of+inhibitor+became+smaller+than+%0D%0Awithout+the+addition+of+inhibitor+with+mean+value+from+29.68+to+16.26+%C2%B5m.+Thus%2C+%0D%0Athe+liquid+smoke+of+oil+palm+midrib+can+be+used+to+inhibit+the+growth+of+CaSO4%0D%0Ascale.%0D%0AKeywords%3A+Liquid+smoke+of+oil+palm+midrib%2C+CaSO4%2C+scale%2C+inhibitor%0D%0A%0D%0A&rft.publisher=Fakultas+Matematika+dan+Ilmu+Pengetahuan+Alam&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F55322%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F55322%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F55322%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++NADYA+SYARIFATUL+FAJRIYAH%2C+1517011133++(2019)+STUDI+PENAMBAHAN+ASAP+CAIR+PELEPAH+KELAPA+SAWIT+(Elaeis+guineensis+J.)+SEBAGAI+INHIBITOR+KERAK+KALSIUM+SULFAT+(CaSO4)+MENGGUNAKAN+METODE+UNSEEDED+EXPERIMENT.++Fakultas+Matematika+dan+Ilmu+Pengetahuan+Alam%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F55322%2F