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Nuryoto
Jurusan Teknik Kimia Fakultas Teknik, Universitas Sultan Ageng Tirtayasa
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Journal : World Chemical Engineering Journal

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Study of Esterification Reaction Between Ethanol and Acetic Acid Using Homogeneous and Heterogeneous Catalyst Nuryoto, Nuryoto; Amaliah, Alin Rizka; Puspitasari, Anita; Ramadhan, Anggara Diaz
World Chemical Engineering Journal VOLUME 4 NO. 2 DECEMBER 2020
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v4i2.8952

Abstract

The Ethyl acetate is the final product of esterification reaction between ethanol and acetate acid which usually used as a solvent. Catalysts are used to boost the esterification reaction rate, mostly the homogenous catalyst (acid liquid catalyst) is used. The use of homogeneous catalyst needs quite long process to separate, that is the reason why using the heterogeneous catalyst is the alternate way. The purpose of this research is to compare the performance of homogeneous catalyst (sulphuric acid) and heteregenous catalyst (natural zeolite from Bayah) by variating the factors that has an impact on reaction. The reaction was happened in batch reactor by variating the speed of agitation speed in range 500-700 rpm and the catalyst molecules size 60 mesh and 100 mesh for the solid catalysts. The goal of the variation is to maximize the reactant mass transfer to the active site of the catalyst. The result of this research shows that on the agitation speed of 700 rpm and 100 mesh Bayah natural zeolite is able to yield bigger conversion of acetate acid compared to using the sulphuric acid catalyst, which are 45.03% and 15.19% .
Kinetic Study of Ammonium Desorption using Natural Zeolites from Cikalong Abdusattar, Thareqa; Hadi, Abdul; Nuryoto, Nuryoto; Kurniawan, Teguh
World Chemical Engineering Journal VOLUME 5 NO. 1 JUNE 2021
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v5i1.12103

Abstract

Household liquid waste which contains ammonium is one of the major contributors to the wastewater effluent. The aim of investigation is to characterize and determine the adsorption capacity of natural zeolites from Cikalong for ammonium removal.  The effect of cations type, K+, Mg2+ and Ca2+, on ammonium desorptions was studied. Kinetic desorption study was also performed and fitted with various kinetic models. According to X-ray diffraction (XRD) pattern, the Cikalong natural zeolites were mordenite and clinoptilolite dominant type.  The morphology of the mordenite phase was appeared as needles shape. The ratio of Si to Al was 6.86 according to X-ray fluorescence (XRF). The surface area was 187 m2/g which was determined by Brunauer–Emmett–Teller (BET) model. Desorption using K+ solution showed the shortest time and the highest rate for ammonium desorption. The calculation using nonlinear method was carried out to optimize the desorption kinetic parameters. The pseudo 1st order desorption kinetics model showed the smallest error with sum of squared error (SSE) 0.00209.
Co-Authors Abdul Hadi Abdullah, Aldi Abdusattar, Thareqa Agus Rochmat Alamudin, Dimas Alya Sholikhatul Choerunnisa Amaliah, Alin Rizka Anggara Diaz Ramadhan Anita Diyanah Anton Irawan As-syirazi, Achmad Syarafuddin Astari, Raisa Astrilia Damayanti Bagaskara, Rafiif Nur Tahta Diana Alfi Jayanti Doni Rahmat Wicakso Dwinanto Dwinanto Erlin Filiandini Erlin Findilina Fajar Gumelar Fortuna, Dwi Ghani Naufal Gustiana Awaludin Sobarsah Harly Demustila Hary Sulistyo Hary Sulistyo Hary Sulistyo Hary Sulistyo Hendra, Hendra Heri Heriyanto Hernadin, Ivan Aldino Hesti Prihastuti Indar Kustiningsih Indra Perdana Indra Perdana Indra Perdana Isti Uswatun Hasanah Jayanudin Jayanudin Jayanudin Julvita, Herliza Kawiarso Kawiarso Makiyi, Muhammad Megawati - Meri Yulvianti Muchamad Ismettulloh Muhammad Fadjri Muhammad Iqbal Sobari, Muhammad Iqbal Muhammad Ridwan Mubarok Muhammad Triyogo Adiwibowo Nia Mas’ulunniah Nindya Carolina C.S Nur Tahta Bagaskara, Rafiif Nurwijayanti Perdana, Indra Prasetyo, Ridwan Anung Prayogatama, Adhi Puspitasari, Anita Raffli Nurmuhammad Rahmawati, Leli Rahmayetty Rahmayetty Rahmayetty, Rahmayetty Ramadani, Putri Dwi Ramadhan, Anggara Diaz Retno Hadi Winoto Riantoro, Geraldi Rizki, Muhammad Prabu Rudi Hartono Sahrul Rijal, Sahrul Saiful Bahri Sediawan, Wahyudi Budi Shera D. Andini Soni Candra Suhendar Suhendar, Suhendar Sulistyo, Hary Suprihastuti, Sri Rahayu Suripno Suripno Sutijan Syahjaya, Farhan Alif Syifa Fauziah Teguh Kurniawan Teguh Kurniawan Tita, Lorenso Caetano Manek De Wahyu Budi Setiawan Wahyudi Budi Sediawan Wahyudi Budi Sediawan Wahyudi Budi Sediawan Widya Ernayati Kosimaningrum Wijoyono Setionegoro Winaningsih, Ima Yulvianti, Meri Yusuf Rumbino