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PENGARUH SUSUNAN KATALIS Co DAN Mo TEREMBAN PADA ZSM-5 DALAM REAKTOR TERHADAP YIELD BIOAVTUR HASIL HYDROTREATMENT MINYAK GORENG SAWIT

WIDURI ANGGRAENI, Prof.Dra. Wega Trisunaryanti, M.S., Ph.D., Eng., Prof.Dr.rer.nat.Karna Wijaya, M.Eng.

2024 | Skripsi | KIMIA

Sintesis katalis berbasis Co dan Mo yang diembankan pada ZSM-5 melalui metode impregnasi kering telah dilakukan. Penelitian ini bertujuan untuk mempelajari karakteristik dan pengaruh susunan katalis Z, Co/Z, dan Mo/Z terhadap yield bioavtur dalam hydrotreatment minyak goreng sawit. Impregnasi logam Co dan Mo pada ZSM-5 dilakukan dengan cara semprot (spray) menggunakan larutan prekursor kobalt(II) klorida heksahidrat (CoCl2·6H2O) dan ammonium heptamolibdat tetrahidrat [(NH4)6Mo7O24·4H2O] menghasilkan katalis Co/Z dan Mo/Z. Katalis dikarakterisasi menggunakan FTIR, XRD, SEM-EDX Mapping, SAA, dan NH3-TPD. Uji aktivitas katalis  dilakukan melalui hydrotreatment minyak goreng sawit menggunakan reaktor semi-batch dengan pemanas ganda dalam sistem one-pot double-decker. Produk cair hasil reaksi hydrotreatment dianalisis dengan GC-MS.     

Hasil penelitian menunjukkan bahwa minyak goreng sawit mengandung senyawa dominan asam oleat (43,73%) dan asam palmitat (39,9%). Katalis Co/Z dan Mo/Z menunjukkan karakter luas permukaan masing-masing sebesar 237,806 dan 259,970 m2/g; volume pori total sebesar 0,175 dan 0,191 cm3/g; rerata diameter pori sebesar 2,949 dan 2,936 nm; serta keasaman total 1,455 dan 1,624 mmol/g. Susunan katalis Co/Z-Mo/Z menghasilkan yield bioavtur tertinggi sebesar 35,76%. 



The synthesis of Co and Mo-based catalysts impregnated on ZSM-5 through dry impregnation method has been conducted. This research aims to study the characteristics and the influence of Z, Co/Z, and Mo/Z catalyst configurations on bioavtur yield in palm oil hydrotreatment. The impregnation of Co and Mo metals on ZSM-5 was carried out by spray method using solutions of cobalt(II) chloride hexahydrate (CoCl2·6H2O) and ammonium heptamolybdate tetrahydrate [(NH4)6Mo7O24·4H2O], resulting in Co/Z and Mo/Z catalysts. The catalysts were characterized using FTIR, XRD, SEM-EDX, SAA, and NH3TPD. Catalyst activity tests were performed by palm oil hydrotreatment using a semi-batch reactor with double-decker dual-heater system. The liquid products from hydrotreatment reaction were analyzed by GC-MS. 

The results indicate that palm oil contains predominantly oleic acid (43.73%) and palmitic acid (39.9%). Co/Z and Mo/Z catalysts exhibit specific surface areas of 237.806 and 259.970 m2/g respectively; total pore volumes of 0.175 and 0.191 cm3/g respectively; average pore diameters of 2.949 and 2.936 nm respectively; and total acidity of 1.455 and 1.624 mmol/g respectively. The Co/Z-Mo/Z catalyst configuration produces the highest bioavtur yield at 35.76%.


Kata Kunci : bioavtur, hydrotreatment, kobalt, molibdenum, ZSM-5

  1. S1-2024-462262-abstract.pdf  
  2. S1-2024-462262-bibliography.pdf  
  3. S1-2024-462262-tableofcontent.pdf  
  4. S1-2024-462262-title.pdf