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Ahmad Tawfiequrrahman Yuliansyah
Departemen Teknik Kimia, Fakultas Teknik, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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Manganese Recovery from Hydrocracking Spent Catalyst Using Citric Acid and Its Kinetics Petrus, Himawan Tri Bayu Murti; Sari, Dewi Purnama; Yuliansyah, Ahmad Tawfiequrrahman; Mufakhir, Fika Rofieq; Astuti, Widi; Iskandar, Yusuf; Bratakusuma, Danu; Virdhian, Shinta
International Series on Interdisciplinary Science and Technology Vol. 4 No. 2 (2019)
Publisher : Universitas Lampung

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Abstract

Aiming for recovery and kinetics of manganese from hydrocracking spent catalyst using citric acid, this study has been conducted. In order to justify the performance of citric acid, a comparative study has been conducted using both inorganic and organic acids in the same pH condition of about 1,5 - 2. pH was used as the controlled variable due to the different dissociation degree of the acids. In comparison to that of inorganic acid, the manganese recovery is four times higher when citric acid was applied. Acetic acid performed 33% lower in manganese recovery compared to the citric acid. Moreover, kinetics study was conducted with three varying temperature of 30C, 60C, and 90C. From the resulted data, it can be concluded that the kinetics of mengan leaching from spent catalyst using citric acid is in accordance to the shrinking core model. The controlling step is product diffusion with activation energy (Ea) of about 23.27 kJ/mol calculated using Arrhenius expression. With higher selectivity and leaching reagent which is harmless to the environment, the application of citric acid in manganese leaching from spent catalyst will indeed support the enactment of sustainable development aspect in recycle processing
Co-Authors Achmad Diansyukma Agus Prasetya Ahmad Hanafi Arief Budiman Asep P Zainuddin Aziz Askaputra Bagus Putro Budi Utomo Bratakusuma, Danu Britania Dewi Clarasinta Budi Kamulyan C. Chika Oktalia Putri Cahyono, Rochim Bakti Claudino de Almeida Cabral D Bratakusuma Danu Bratakusuma Dedi Eko Yunanto Dewi Purnama Sari Dewi Purnama Sari Dwi Saputri Dwi Saputri Edia Rahayuningsih Erlina Kurnianingtyas Fajar Marendra Fajar Marendra Fami Amalia Putri Fika Rofiek Mufakir Fika Rofieq Mufakhir Fitriani Fitriani Haidar Ali Handayani, Destias Selly Harimurti Wicaksono Hary Sulistyo Hasanah, Nur Hayati Himawan Tri Bayu Murti Petrus Imam Karfendi Putro Indra P Hakim Kidung Wulan Utami Lestari, Dwi Indah Lisendra Marbelia Mahfudl Sidiq Muhayyat Marendra, Fajar Mufakhir, Fika Rofieq Muhamad Johar Ardany Muhammad A. A. Ramadhan, Muhammad Muhammad Irsan B Muhammad Kurniawan Adiputra mulhidin, mulhidin Pasca Giffari Jusuf Rahmah, Puspa Reno Imam Arthapersada Riski Amalia, Riski Rizka Lestari Rizki Laksono, Rizki RR. Ella Evrita Hestiandari Rukmana Saputri, Dwi Sarto Sarto Septina AVIA Avia Shinta Virdhian shinta virdhian, shinta Sri Puji Saraswati Suprianto Suprianto Suryo Purwono Sutijan Wahyu Wilopo Widi Astuti Widi Astuti Widi Astuti Y Iskandar Yuni Rosita Yusuf Iskandar Zakiah Awalia J S Dahlan