%A ROSADINAH NURUL
%T PEMANFAATAN EKSTRAK SABUT SAWIT, ASAP CAIR CANGKANG SAWIT, DAN CAMPURANNYA SEBAGAI INHIBITOR PEMBENTUKAN KERAK KALSIUM SULFAT (CaSO4) 
%X Dalam  industri  minyak  dan  gas,  masalah  yang  umum  terjadi  adalah pengendapan  garam  pada  dinding  peralatan  aliran  fluida,  terutama  pada  permukaan perpindahan  panas  dan  pada  permukaan  peralatan  evaporasi.  Pengendapan  ini  tidak diinginkan  karena  menyebabkan  pembentukan  kerak  yang  dapat  mempengaruhi perpindahan panas serta mengurangi efisiensi dan menghambat proses aliran fluida.Pada  penelitian  ini  digunakan  ekstrak  sabut  sawit,  asap  cair  cangkang  sawit, campuran  ekstrak  sabut  sawit  dengan  asap  cair  cangkang  sawit,  dan  asam  etilen diamina tetra asetat (EDTA) sebagai inhibitor kalsium sulfat (CaSO4) dengan metode unseeded  experiment  dan  seeded  experiment  pada  suhu  90  ?  dengan  variasi konsentrasi larutan pertumbuhan 0,050; 0,075; dan 0,1 M serta variasi inhibitor 5, 15, 25, 35, dan 45%.  Nilai persentase efektivitas yang paling efektif pada metode seeded experiment dengan larutan pertumbuhan 0,050 M. Inhibitor ekstrak sabut sawit dengan konsentrasi 35%  sebesar  62,187%,  asap  cair  cangkang  sawit  konsentrasi  25%  sebesar  54,624%, campuran  ekstrak sabut sawit dengan asap cair cangkang sawit konsentrasi inhibitor 35% dan 25% sebesar 55,962%, dan EDTA konsentrasi inhibitor 5% sebesar 95,405%. Bentuk morfologi dengan analisis SEM penambahan inhibitor kristal CaSO4 berbentuk pendek dan berukuran kecil. Fasa kristal dengan analisis XRD penambahan inhibitor menunjukkan fasa gipsum, basanit, dan anhidrat.
Kata kunci: asap cair cangkang sawit, CaSO4, EDTA, ekstrak sabut sawit, inhibitor.

 In the oil and gas industry, a common problem is salt deposition on the walls of fluid flow processing equipment, especially on heat transfer surfaces and on the surfaces of evaporation  equipment.  This  deposition  is  undesirable  because  it  causes  scale formation which can affect heat transfer as well as reduce efficiency and prevent flow in the process fluid. This research was used palm fiber extract, liquid smoke of palm kernel shell, mixture of palm fiber extract with liquid smoke of palm kernel shell, and ethylene diamine tetra acetic acid (EDTA) as inhibitor calcium sulfate (CaSO4) with methods  unseeded  experiment  and  seeded  experiment  at  temperature  of  90  ?  with variations  in  the  concentration  of  the  growth  solution  0.050;  0.075;  and  0.1  M  and variations in inhibitor 5, 15, 25, 35, dan 45%. The percentage value of effectiveness is most effective in the seeded experiment method  with a growth solution of 0.050 M. The  palm  fiber  extract  inhibitor  with  a  concentration  of  35%  was  62.187%,  liquid smoke of palm kernel shell with a concentration of 25% was 54.624%, mixture of palm fiber extract with liquid smoke of palm kernel shell with an inhibitor concentration of 35%  and  25%  was  55.962%,  and  EDTA  with  an  inhibitor  concentration  of  5%  was 95.405%. The morphological form using SEM analysis of the addition inhibitor of the CaSO4 crystal is short and small in size. The CaSO4 crystal phase with XRD analysis of the addition of inhibitors shows gypsum, basanite, and anhydrate phases.

Key words: liquid smoke of palm kernel shell, CaSO4, palm fiber extract, EDTA, inhibitor. 
%D 2024
%I UNIVERSITAS LAMPUNG
%L eprints80641