Skripsi

ANALISIS PENGARUH ZEOLIT SINTETIK 3 Å TERHADAP SIFAT HIGROSKOPIS BIODESEL(B40) DENGAN INDIKATOR UTAMA SILIKA PADA PENGUJIAN LABORATORIUM DI PT KILANG PERTAMINA INTERNATIONAL UNIT III PLAJU PROVINSI SUMATRA SELATAN

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The hygroscopicity of biodiesel (B40) is a challenge in the processing of natural resources. This hygroscopicity significantly impacts quality degradation and combustion efficiency. Hygroscopicity is the property of a material to absorb or attract water vapor (humidity) from the surrounding air. Biodiesel contains ester groups (–COO–) that tend to form hydrogen bonds with water. These groups are polar, readily attracting water molecules from the air. PT Kilang Pertamina International RU III Plaju is a relevant and significant research object in the context of the petroleum processing industry. Previous literature still lacks comprehensive integration with zeolite characterization, mass and duration optimization, and economic analysis specifically for B40 biodiesel. This study aims to analyze the effect of 3Å zeolite morphology, as well as variations in mass and contact duration, on reducing the water content of biodiesel (B40), and to compare their effectiveness. with silica, and comparing the economic costs during the regeneration process. This research model uses a mixed method with controlled laboratory experiments equipped with morphological analysis and economic comparisons during regeneration to strengthen the interpretation of the results. The variations in zeolite mass tested on biodiesel samples (B40) were 1.5 grams, 3 grams, 4.5 grams, 6 grams, and 7.5 grams per 500 ml of biodiesel sample (B40). Each sample was tested using laboratory equipment such as a Karl Fischer Titrator to measure water content for 180 minutes at 60- minute intervals, to observe the trend of a gradual decrease in water content. The results of the comprehensive study showed that the mass and duration of zeolite were directly proportional to the decrease in water content. During the 180-minute test time, in the treatment without zeolite (0 grams), the water content increased by 6.32%. Zeolite with a mass of 1.5 grams affects a decrease in biodiesel water content (B40) of 5.31%, Zeolite with a mass of 3 grams affects a decrease in biodiesel water content (B40) of 6.57%, Zeolite with a mass of 4.5 grams affects a decrease in biodiesel water content (B40) of 16.53%, Zeolite with a mass of 6 grams affects a decrease in biodiesel water content (B40) of 20.01% and Zeolite with a mass of 7.5 grams experiences a decrease in water content of 20.34%. With the same treatment, during the 180-minute test, in the treatment without silica (0 grams), the water content increased by 9.87%. After adding silica with a mass of 1.5 grams, it affected a decrease in the water content of biodiesel (B40) of 13.84%. Silica with a mass of 3 grams affected a decrease in the water content of biodiesel (B40) of 17.68%, Silica with a mass of 4.5 grams affected a decrease in the water content of biodiesel (B40) of 26.97%, Silica with a mass of 6 grams affected a decrease in the water content of biodiesel (B40) of 37.34%, Silica with a mass of 7.5 grams affected a decrease in the water content of biodiesel (B40) of 30.34%, The multiple regression model explains 72.8% of the variation in water content, indicating a strong and valid model. Zeolite 3Å has a longer lifetime because it can be regenerated up to 18 times at a temperature of 100°C, while silica can only be regenerated 5 times due to its brittle nature. In terms of cost, silica is slightly cheaper (Rp154,548/barrel) than zeolite (Rp162,180/barrel). However, zeolite 3Å works 25% more efficiently in terms of operational time and provides long-term benefits by reducing the frequency of material replacement and shortening cycle times. From an economic perspective, if focusing on long-term costs, time efficiency, and service life, zeolite is more economical than silica. This research provides a strong scientific basis covering material structure, adsorption kinetics, and cycle-based cost analysis. Overall, 3Å zeolite has advantages for long-term use.

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Detail Information

Series Title

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Call Number

T1898972025

Publisher

Palembang : Prodi Magister Teknik Pertambangan, Fakultas Teknik Universitas Sriwijaya., 2025

Collation

xix, 84 hlm.; ilus.; tab.; 29 cm

Language

Indonesia

ISBN/ISSN

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Classification

665.538 07

Content Type

Text

Media Type

-

Carrier Type

-

Edition

-

Subject(s)

Prodi Magister Teknik Pertambangan
Produk Minyak Bumi--Biodesel

Specific Detail Info

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MI

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