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PEMILIHAN ADSORBEN UNTUK PENJERAPAN KARBON MONOKSIDA MENGGUNAKAN MODEL ADSORPSI ISOTERMIS LANGMUIR

*Yuliusman Yuliusman  -  Departemen Teknik Kimia, Fakultas Teknik Universitas Indonesia, Indonesia
Widodo Wahyu Purwanto  -  Departemen Teknik Kimia, Fakultas Teknik Universitas Indonesia, Indonesia
Yulianto Sulistyo Nugroho  -  Departemen Teknik Mesin, Fakultas Teknik Universitas Indonesia, Indonesia

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Abstract

ADSORBENT SELECTION FOR CO ADSORPTION USING LANGMUIR ISOTHERMIC ADSORPTION MODEL. The objective of this research is to choose the adsorbent that can be applied to decrease toxicity level and to purify fire smoke. In case of fire, toxicity level is high due to carbon monoxide. Adsorbent is chosen based on its ability to adsorb carbon monoxide using volumetric method in constant temperature. Materials to be tested are natural zeolite, active carbon, TiO2, CuO, MgO. Due to existence of organic and mineral polluters, natural zeolite needs to be activated prior to adsorption test using fluoride acid (HF), chloride acid (HCl), ammonium chloride (NH4Cl) and followed by calcination process. Result shows that activation of natural zeolite can increase Si/Al ratio and surface area. According to Langmuir adsorption model obtained, adsorption capacity of active carbon and natural zeolite are the highest. At 1 atmospheric pressure, adsorption capacity are 0.0682 mmol/g for active carbon, 0.0464 for activated natural zeolite with particle size of 400 nm, and 0.0265 mmol/g for activated natural zeolite with particle size of (37-50) μm.

 

Penelitian ini bertujuan untuk memilih adsorben yang dapat diaplikasikan untuk menurunkan tingkat racun dan menjernihkan asap kebakaran. Pada kasus kebakaran tingkat racun asap disebabkan tingginya kandungan karbon monoksida. Proses pemilihan adsorben dilihat pada kemampuan adsorben mengadsorpsi karbon monoksida, yang dilakukan dengan metode volumetrik pada temperatur konstan. Material yang diuji adalah zeolit alam, karbon aktif, TiO2, CuO, MgO. Zeolit alam banyak terdapat pengotor baik organik maupun mineral, oleh karena itu sebelum dilakukan uji adsorpsi, zeolit alam terlebih dahulu diaktifasi menggunakan larutan asam florida (HF), asam khlorida (HCl) dan larutan amonium khlorida (NH4Cl), dilanjutkan dengan proses kalsinasi. Hasil penelitian menunjukkan bahwa aktifasi zeolit alam dapat meningkatkan rasio Si/Al dan luas permukaan. Semua adsorben yang diuji mempunyai kemampuan mengadsorpsi karbon monoksida. Berdasarkan model adsorpsi Langmuir yang diperoleh, karbon aktif dan zeolit alam mempunyai kapasitas adsorpsi yang paling besar. Dengan menggunakan kondisi tekanan 1 atmosfir, kapasitas adsorpsi adalah 0,0682 mmol/g untuk karbon aktif, 0,0464 mmol/g untuk zeolit alam teraktifasi dengan ukuran partikel 400 nm dan 0,0265 mmol/g untuk zeolit alam teraktifasi dengan ukuran partikel (37-50) μm.

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Keywords: aktifasi; adsorben; adsorpsi; karbon monoksida, zeolit alam

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Last update: 2024-11-11 20:00:06

  1. Hydrogen Storage from the Result of Reactor ACE (Aluminum Corrosion and Electrolysis) Production by Pysisorption Method

    A Zikri, Erlinawati, L Trisnaliani, A Aswan, A Firdausia. Journal of Physics: Conference Series, 1167 , 2019. doi: 10.1088/1742-6596/1167/1/012038
  2. Kinetic studies of adsorption in the bioethanol dehydration using polyvinyl alcohol, zeolite and activated carbon as adsorbent

    J. A. Laksmono, I. M. Pratiwi, M. Sudibandriyo, A. Haryono, A. H. Saputra. AIP Conference Proceedings, 1904 , 2017. doi: 10.1063/1.5011933
  3. Adsorption of CO Gas and Cigarette Smoke Using NiO-Modified Metal Activated Carbon

    Yuliusman Yuliusman, Fadel Al Farouq, Samson Patar Sipangkar, Mufiid Fatkhurrahman, Salma Amaliani Putri. Materials Science Forum, 1000 , 2020. doi: 10.4028/www.scientific.net/MSF.1000.303
  4. The application of activated carbon from coconut shell and zeolite as adsorbents on coffee decaffeination using the Swiss Water Process (SWP)

    S Saloko, Y Sulastri, Murad, S Wahyuni. IOP Conference Series: Earth and Environmental Science, 443 (1), 2020. doi: 10.1088/1755-1315/443/1/012067