Dzakir, Muhammad Ibrahim and Rajio, Ariobimo (2018) Pengembangan Teknologi Proses Regenerasi Material Hibrida Karbon Silika Sebgai Solid Dessicant Dalam Biogas Dehydration Unit. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Biogas merupakan salah satu energi alternatif pengganti energi fosil yang ramah lingkungan. Dalam standar pipeline biogas, kandungan air harus kurang dari 65 mg/m3. Untuk mengurangi kandungan air, digunakan metode adsorpsi dengan silica gel yang lebih ekonomis dan lebih efektif. Namun, untuk mendapatkan silica gel dengan kapasitas adsorpsi yang besar, diperlukan pengeringan dengan teknologi superkritis yang sangat mahal. Untuk mengatasi permasalahan tersebut, telah dikembangkan suatu material hibrida karbon mesopourus berlapis silika yang berpotensi lebih efisien dibandingkan silica gel. Ketika adsorben sudah jenuh dengan air, maka adsorben tersebut tidak akan bisa menyerap air. Agar adsorben tersebut dapat dipakai kembali untuk dehidrasi gas, maka dilakukan regenerasi adsorben. Namun, belum ada penelitian lebih lanjut mengenai regenerasi material karbon silika ini. Untuk melakukan percobaan ini, terdapat empat tahap, yaitu pretreatment dengan menggunakan udara bertekanan, hidrolifikasi karbon aktif dengan impregnasi silika ke dalam karbon aktif, dehidrasi untuk mengetahui kapasitas adsorbsi karbon silika dan regenerasi menggunakan udara untuk mengetahui pengaruh kondisi operasi (suhu, tekanan, waktu regenerasi dan flowrate udara) terhadap % removal air material karbon silika. Dari hasil penelitian ini, didapatkan bahwa % removal air berbanding lurus dengan suhu, waktu regenerasi dan flowrate udara dan berbanding terbalik dengan tekanan. % removal tertinggi terjadi saat waktu regenerasi 5 jam dengan % removal air 90,55%.
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Biogas is one of alternative energy replacement of environmental friendly fossil energy. In biogas pipeline standards, the water content must less than 65 mg / m3. To reduce water content, the adsorption method with silica gel adsorbent is more economical and more effective. However, to get silica gel with a large adsorption capacity, drying with supercritical technology that it is too expensive. To solve this problem, we have developed a silica-coated mesophourus carbon hybrid material as a potentially more efficient solid dessicant than silica gel. When the adsorbent is saturated with water, the adsorbent will not absorb water. In order for the adsorbent to be reused for dehydration of the gas, the adsorbent regeneration is needed. However, there has been no research on the regeneration of this silica carbon material. To conduct this experiment, there are four stages: pretreatment using pressurized air, hydrophilication of activated carbon by impregnation of silica into activated carbon, dehydration to know adsorption capacity and regeneration using air to know the effect of operating conditions (temperature, pressure, regeneration time and air flowrate) to % water removal of the silica carbon material. From this result, showed that % water removal is parallel with temperature, regeneration time and air flowrate and it is inverse with pressure. The highest % removal is resulted when the operation condition is 5 hours regeneration with % water removal is 90,55%.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | adsorpsi, dehidrasi biogas, hibrida karbon silika, hidrofilikasi, regenerasi |
| Subjects: | T Technology > TP Chemical technology > TP350 Natural gas--Drying. T Technology > TP Chemical technology > TP359 Biogas |
| Divisions: | Faculty of Industrial Technology > Chemical Engineering > 24201-(S1) Undergraduate Thesis |
| Depositing User: | Ariobimo Rajio |
| Date Deposited: | 24 Jun 2021 04:08 |
| Last Modified: | 24 Jun 2021 04:08 |
| URI: | http://repository.its.ac.id/id/eprint/55137 |
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