Pengaruh Adsorben CaO Dan Karbon Aktif Teraktivasi KOH Pada Bahan Bakar Kerosin-based Avtur Terhadap Penurunan Total Acid Number (TAN)

Oktavianti, Azrina (2025) Pengaruh Adsorben CaO Dan Karbon Aktif Teraktivasi KOH Pada Bahan Bakar Kerosin-based Avtur Terhadap Penurunan Total Acid Number (TAN). S1 thesis, Universitas Jambi.

[img] Text
ABSTRAK.pdf
Download (165kB)
[img] Text
BAB I.pdf
Download (197kB)
[img] Text
BAB V.pdf
Download (191kB)
[img] Text
COVER.pdf
Download (126kB)
[img] Text
DAFTAR PUSTAKA.pdf
Download (168kB)
[img] Text
FULL SKRIPSI.pdf
Restricted to Repository staff only
Download (7MB)
[img] Text
HALAMAN PENGESAHAN.pdf
Download (792kB)
Official URL: https://repository.unja.ac.id/

Abstract

ABSTRAK Upgrading bahan bakar bertujuan meningkatkan kualitas bahan bakar agar memenuhi standar, salah satu dengan menurunkan Total Acid Number (TAN) yang menunjukkan jumlah asam kotor. Fraksinasi dari crude oil dari pirolisis plastik dengan suhu 170-220°C digunakan sebagai based avtur memiliki rentang hidrokarbon C8-C16 yang diketahui mengandung TAN tinggi dan belum memenuhi spesifikasi. Untuk itu, perlakuan adsorpsi digunakan untuk meninjau penurunan TAN pada bahan bakar kerosin-based avtur menggunakan adsorben CaO dan karbon aktif (AC) yang diaktivasi secara kimia. Secara garis besar penelitian ini, dimulai dari preparasi adsorben, aktivasi adsorben karbon aktif teraktivasi KOH, karakterisasi kerosin-based avtur (meliputi penentuan TAN dan karakterisasi GC-MS), proses adsorpsi, pengujian pengaruh variasi massa adsorben, waktu dan suhu adsorpsi serta karakterisasi menggunakan XRF, XRD, FTIR, SEM, BET, CO2 -TPD dan GC-MS. Dalam meninjau penuruan TAN, pengaruh konsentrasi KOH terhadap aktivasi AC menunjukkan bahwa mampu meningkatkan karakteristik permukaan dan kemampuan adsorpsi, ditunjukkan oleh AC-KOH 5% dengan kondisi yang terbaik. Adsorben CaO dan AC-KOH 5% mampu menurunkan nilai TAN secara signifikan. Efisiensi adsorpsi tertinggi tercapai pada CaO sebesar 98,1132% dengan massa 0,5%, waktu 15 menit pada suhu ruang, sedangkan AC-KOH 5% mencapai efisiensi 72,8301% dengan massa 5%, waktu 120 menit dan pada suhu 50°C. Analisa GC-MS, menunjukkan bahwa penurunan senyawa asam dan hidrokarbon setelah adsorpsi, terutama senyawa bermassa molekul tinggi yang mengandung gugus –COOH, yang berkontribusi terhadap nilai TAN. Hal tersebut, didukung oleh analisis FTIR yang mengonfirmasi adanya penambahan persentase transmitan pada gugus fungsional, yang menunjukkan terjadinya interaksi antara senyawa asam dalam kerosin-based avtur dengan permukaan adsorben. Hasil ini menunjukkan bahwa adsorben CaO dan AC teraktivasi KOH efektif dalam meninjau penurunan TAN bahan bakar kerosin-based avtur. Kata kunci: Kerosin-based avtur, Total Acid Number, Adsorpsi, CaO, Karbon aktif.   SUMMARY Fuel upgrading aims to improve fuel quality to meet standards, one of which is by reducing the Total Acid Number (TAN) which indicates the amount of gross acid. Fractionation of crude oil from plastic pyrolysis with a temperature of 170-220°C used as avtur base has a range of C8-C16 hydrocarbons which are known to contain high TAN and have not met specifications. For this reason, adsorption treatment is used to review the reduction in TAN in kerosene-based avtur fuel using CaO and activated carbon (AC) adsorbents that are chemically activated. In general, this study starts from the preparation of adsorbents, , activation of activated carbon adsorbents activated by KOH, characterization of kerosene-based avtur (including determination of TAN and GC-MS characterization), adsorption process, testing the effect of variations in adsorbent mass, adsorption time and temperature and characterization using XRF, XRD, FTIR, SEM, BET, CO2 -TPD and GC-MS. In reviewing the decrease in TAN, the effect of KOH concentration on AC activation shows that it is able to increase the surface characteristics and adsorption capacity, shown by AC-KOH 5% with the best conditions. CaO and 5% AC-KOH adsorbents are able to reduce TAN values significantly. The highest adsorption efficiency was achieved in CaO of 98.1132% with a mass of 0.5%, a time of 15 minutes at room temperature, while AC-KOH 5% achieved an efficiency of 72.8301% with a mass of 5%, a time of 120 minutes and at a temperature of 50°C. GC-MS analysis showed that the decrease in acidic and hydrocarbon compounds after adsorption, especially high molecular mass compounds containing -COOH groups, contributed to the TAN value. This is supported by FTIR analysis which confirmed the addition of the transmittance percentage to the functional group, which indicates the interaction between acidic compounds in kerosene-based aviation fuel and the adsorbent surface. These results indicate that CaO and KOH-activated AC adsorbents are effective in reviewing the reduction of TAN of kerosene-based avtur fuel. Keywords: Kerosene-based avtur, Total Acid Number, Adsorption, CaO, Activated carbon.

Type: Thesis (S1)
Uncontrolled Keywords: Kerosin-based avtur, Total Acid Number, Adsorpsi, CaO, Karbon aktif
Subjects: L Education > L Education (General)
Divisions: Fakultas Sains dan Teknologi > Kimia
Depositing User: Oktavianti
Date Deposited: 09 Jul 2025 07:20
Last Modified: 09 Jul 2025 07:20
URI: https://repository.unja.ac.id/id/eprint/82697

Actions (login required)

View Item View Item
Repository Unja is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.