Maulita, Putri Augustya Rossi and Rasyida, Hanna (2018) Aplikasi Katalis Fe-Co/Karbon Aktif Dalam Pembuatan Biofuel Menggunakan Sintesis Fischer-Tropsch. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Sintesis Fischer-Tropsch merupakan reaksi polimerisasi yang menghasilkan berbagai produk seperti parafin, olefin, alcohol dan aldehida.Tujuan dari penelitian ini adalah mempelajari kinerja katalis Fe-Co/karbon aktif pada berbagai variasi komposisi Fe-Co dan kondisi operasi sintesis Fischer-Tropsch terhadap distribusi produk biofuel. Penelitian ini memvariasikan kandungan logam Fe dalam katalis Fe-Co/Karbon aktif yaitu 0%; 10%; 20%; 30% dan 40%. Secara garis besar prosedur penelitian dibagi menjadi 2 tahap yaitu pembuatan katalis Fe-Co/Karbon aktif dan sintesis Fischer Tropsch. Katalis Fe-Co yang dihasilkan dari penelitian ini kemudian dikarakterisasi menggunakan FTIR, XRD dan EDX. Hasil analisa FTIR menunjukkan sudah terbentuknya gugus fungsi oksigen seperti fenol, alkohol, asam karboksilat. Pada proses impregnasi dengan metode wet impregnation didapat hasil yang paling optimum pada katalis A5 yaitu kadar Fe dalam Fe-Co sebesar 32.5% sehingga mendekati kadar Fe dalam Fe-Co yang seharusnya diinginkan yaitu sebesar 40%. Pada katalis A1 dihasilkan produk gas CH4 yang naik dari 0,316% menjadi 17,446% dan gas CO2 dari 0,077% menjadi 0,228% ketika reaksi terjadi dari 6 hingga 18 jam. Pada katalis A2 dihasilkan produk gas dan liquid. Produk gas CH4naik dari 6,794% mejadi 11,381% namun tidak terbentuk gas CO2 ketika reaksi terjadi dari 6 hingga 18 jam dan terbentuk senyawa aromatic sebanyak 3,13%. Pada katalis A3 dihasilkan produk gas CH4 turun seiring bertambahnya waktu reaksi dari 5,898% menjadi 1,076% dan gas CO2dari 0,862% menjadi 0,431% ketika reaksi terjadi dari 6 hingga 18 jam serta dihasilkan senyawa aromatik paling banyak, yaitu 24,28% . Pada katalis A4 dihasilkan produk gas CH4 turun dari 12,583% menjadi 2,2% dan gas CO2 dari 1,264% menjadi 0% ketika reaksi terjadi dari 6 hingga 18 jam. Pada katalis A5 dihasilkan produk gas CH4 yang mengalami penurunan dari 1,114% menjadi 0,493 % juga tidak terbentuk gas CO2 ketika reaksi terjadi dari 6 hingga 18 jam dan terbentuk senyawa aromatic sebanyak 16,24% .Produk liquid yang dihasilkan melalui sintesis ini sangat sedikit sehingga belum dapat diaplikasikan sebagai biofuel.
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Fischer
- Tropsch synthesis is a polymerization reaction that produces various products such as paraffin, olefins, alcohols, and aldehydes. The purpose of this study was to study the performance of active Fe-Co / carbon catalysts in various Fe-Co compositions and the operating conditions of Fischer-Tropsch synthesis on the distribution of biofuel products. This research
varied Fe content in Fe-Co / Activated Carbon catalyst : 0%; 10%; 20%; 30% and 40%. The research procedure was divided into 2 sections namely the manufacture of Fe - Co catalyst / Activated Carbon and Fischer Tropsch synthesis. The Fe-Co catalys
ts generated from this study were then characterized using
FTIR, XRD, and EDX. The FTIR analysis showed that oxygen functional groups such as phenol, alcohol, carboxylic acid have been formed. The impregnation process with the wet impregnation method, the optimum result on
catalyst with Fe content in Fe-Co is 32.5% which was relatively closed to that original material with
Fe content 40%. In catalyst with Fe content 0%
, the CH4 gas product was increased from 0.316% to 17.446% and CO2 gas from 0.077% to 0.228% when the reaction was carried out for 6 to 18 hours. In catalyst with Fe content 10% gas and liquid products are produced. CH4 gas produced from 6.794% to 11.381% but no CO2 gas was formed for 18 hours and aromatic compounds were formed as much as 3.13
%. In catalyst with Fe content 20%, CH4 gas product decreases with reaction time from 5.898% to 1.076%
and CO2 from 0.862% to 0.431% when the reaction was carried out for 6 to 18 hours and aromatics is produced at most 24.28%. In with Fe content 30% catalyst, the CH
4 gas product was decreased from 12,583% to 2,2% and CO2
gas from 1,264% to 0% when the reaction was carried out for 6 to 18 hours. In the catalyst with Fe content 40% produced CH4 gas products that decreased from 1.114% to 0.493% did not form CO2 gas when the reaction was carried out for 6 to 18 hours and formed aromatic compounds as much as 16.24%. The synthesis in this study produced only
small amount of liquid product (3% yield) thus is still has not applicable for practical purpose.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSK 662.88 Mau a-1 3100018074801 |
| Uncontrolled Keywords: | Karbon Aktif; Fischer-Tropsch Synthesis; Katalis Bimetal; activated carbon; Fischer-Tropsch Synthesis; Bimetallic catalyst |
| Subjects: | Q Science > QD Chemistry > QD501 Catalysis. Catalysts. T Technology > T Technology (General) T Technology > TP Chemical technology > TP339 Ethanol as fuel. Biomass energy. |
| Divisions: | Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis |
| Depositing User: | Hanna Rasyida |
| Date Deposited: | 22 Jan 2018 08:16 |
| Last Modified: | 11 Sep 2020 08:13 |
| URI: | http://repository.its.ac.id/id/eprint/49960 |
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