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Journal : IPTEK The Journal of Engineering

Performance Test Membrane Contactor for CO2 Desorption from DEA Yeni Rahmawati; Salasa Ariq Sungkono; Zulfahmi Hawali; Fadlilatul Taufany; Susianto Susianto; Siti Nurkhamidah; Ali Altway
IPTEK The Journal of Engineering Vol 9, No 1 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v9i1.a16642

Abstract

Membrane-based desorption of carbon dioxide (CO2) using a membrane contactor is considered a novel process for separating CO2 from solvents. It can be carried out using temperature regeneration, sweep gas, and vacuum method. In this work, the vacuum regeneration method is applied in the CO2 desorption process from 30% wt of diethanolamine (DEA) solution. This study investigates the effect of operating parameters such as liquid flowrate, vacuum pressure, and CO2 loading on the mass transfer rate and desorption efficiency of CO2. The highest mass transfer rate of 2.2013 × 10-7 mol/m2s is achieved at a liquid flowrate of 500 mL/min, CO2 loading of 0.27 mol CO2/mol DEA, and vacuum pressure of 50 cmHg while the maximum desorption efficiency of 71.45% is achieved at lower liquid flowrate of 100 mL/min, CO2 loading of 0.27 mol CO2/mol DEA, and vacuum pressure of 50 cmHg. The result demonstrates that membrane contactor is a promising method for the CO2 desorption process which requires further investigation. 
Computational Study on Urea Concentration Profiles in Hemodialysis Hollow Fiber Membranes Under Different Blood Flow Conditions Purwanto, Belinda Kezia; Rahmawati, Yeni; Nurkhamidah, Siti
IPTEK The Journal of Engineering Vol. 11 No. 2 (2025)
Publisher : Pusat Publikasi Ilmiah, Institut Teknologi Sepuluh Nopember.

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kidney failure significantly impairs physiological functions, primarily due to the accumulation of urea in the bloodstream. When renal function drops below 75%, hemodialysis becomes a crucial therapeutic intervention. This study investigates the performance of a hollow fiber dialyzer, consisting of a shell-side dialysate flow, a semi-permeable membrane, and internal capillaries for blood flow. The main objective is to develop a theoretical model describing urea mass transfer through the membrane during hemodialysis. The analysis focuses on the effect of blood flow rate on urea concentration distribution across the tube, membrane, and shell regions in both axial and radial directions. Additionally, the influence of membrane length and dialysate flow rate on urea clearance is examined. Simulation results indicate that higher blood flow rates lead to elevated urea concentrations at the tube outlet, suggesting reduced diffusion into the dialysate compartment. In contrast, increasing membrane length enhances urea clearance. Interestingly, the dialysate flow rate shows minimal impact on clearance efficiency. Under a fixed dialysate flow rate of 500 mL/min and a membrane length of 27 cm, the calculated urea clearance values were 21.95%, 17.06%, 14.31%, and 12.52% for blood flow rates of 200, 300, 400, and 500 mL/min, respectively.
Co-Authors A Halim A'yunin, Intan Qurratun A. Azhari, A. A. H. Zakariah, Fatmawati Abdul Wasi' Achmad Roesyadi Ade Ismail Ramadhan Hamid Adiningsih, Rosyidah Aditya Maulana, Aditya Ahmad, Alif Arsyaduddin Ahmadi, Nurdin Ainul Khatimah Ainun Fitrayawati Airlangga, Bramantyo Al Iman, Budiman Ali Altway AMALIA, TIARA An-Nafi', Muhammad Bilal Ananda, Luis Andhika Djalu Sembada Andi Rahmadiansah Andreawati, Devi Andri Budiwidodo Annisa, Tata Annisah K P, Putik Alaeyda Aparamarta, Hakun Wirawasista Arif Widodo Arifiani Agustin Amalia Arina Restian Arnesya Ramadhani Ashim Hanif, Nak Mas Aulia, Ade Annisa Ausof, Afin Ayu Cahyarani Heksa Az Zahra, Naila Luna Az-zahra, Fathih Aqidhatul Azizah, Muti'ah Nur Azmi Fadhillah, Rifa Azzahra, Eliza B, Kornelia Webliana Bagus Arief Febriansyah Bakri, Reza Fauzi Bella Nurainin, Anisa Belly Sam Berlina Yunita Sari Romaji Bertiningrum Cintya Devi Bhuana, Donny Satria Bunga, Billa Putri Damar Saputri, Sukma Ajeng Darmawan, Raden Daroe Iswatiningsih Deffry Danius Dwi Putra Dhanif, Ahmad Dhiah Novalina Donny Satria Bhuana Dwi Isnaini, Septi DWI RAHMAWATI Dzul Rachman, Dzul Eka Nugraha, Bayu Eka Nur Baiti, Shallivia El Qorny, Ashief Emas, S.Sn.,M.Sn, Cindi Adelia Putri Endrisalma, Lathifa Fadhillah, Atikawati Fadlilatul Taufany Fadlilatul Taufany Fahmi Fahmi Fahmi Fauzi, Bella Anastasya Virginia Fauzi, Buyung Ramat Fauzi, Riski Fauziah, Anis Putri Fauziah, Melinda Nur Fazrayana, Fuan Febriana, Euis Firman Kurniawansyah Firman Kurniawansyah Firmansyah Firmansyah Firmansyah, Riffat Gabriella Putri Bonita Habibah, Ridha Habibi, Julius Hafid, Wahyu Handayani, Baiq Fitri Harfiza, Junisa Harfiza Hayathi, Nurul HENDRATNO Hendrianie, Nuniek Hidayat , Rahmat Hikmatun Ni’mah Hikmatun Ni’mah Huda, Ade Naelul I Made Pendi Adi Merta Ibrahim Ibrahim Ibrohim Muhammad Imayuri, Infiona Ratu Imroatul Mufidah, Imroatul Indah Wulansari, Farra Irdhianti, Richa Nurafifah Ise Lestari Istiqamah Istiq’faroh, Nurul Iswanto, Toto Jaelani, Alan Jakasukmana, Munandar Jannah, Fisabilla Annisatul Jannah, Laila Miftahul Januar Abdillah Santoso Jaya, Rachmad Syifa Kayni, Ika Mareta Nur Khaerunnisa, Asma Farida Khatimah, Khusnul Komaria, Winda KURNIAWAN, ARY Kusdianto Kusdianto Kusumahati, Sari Lailatul Qadariyah Larasati, Wahyu Adinda Luthfi Kurnia 'Arifushidqi M. Irfan Mabruroh, Indah Nahdotul Mahfud Mahfud Marisa, Sonia Mathilda Jowito Pasaribu maulina Zain, Salwa Meina Shiamullaeli Meka, Wahyu Muftiasih, Putri Muhammad Rifa'i Muhammad Rio Satriananta Muhammad Saleh Muhandis Sidqi, Muhandis Muliati, S.S., M. Si, Dr. Roza Musriha Nailufar, Yuyun Nasution, Syahrial Nawangsari, Meita Nazifa, Farah Ndricenning, I Mario Neni Mariana Ni Made Intan Putri Suari Nuniek Hendrianie Nuniek Hendrianie Nur Aminullah Nurdin Amin Nurhadi Nurhaliza, Winarti NURHIDAYATI, SAFITRI Nurkhamidah, Siti Nurlaila Fajar, Novia Nursela, Nisa Nurul Farida Nurul Fatimah Nyamiati, Retno Dwi Oktaviani, Nabela Oktavianingrum, Eva Orchidea Rachmania Pambudi, Alfian Wisnu Pamungkas, Raditya Paramitha, Dinda Aulia Pramesti, Titi Prasetiyo, Didit Eko Pratama, Raffialdi Anugrah Puji Santoso Purwanto, Belinda Kezia Purwoko, Akhmad Edy Puspita, Rani Herning Putra, Muhammad Rafif Tanaya Putri Mudi, Nabila Putri Solikhah, Monika Putri, Novita Eka Putri, Wanda Adelya Putri, Wilda Amalia Ra'is, Amin Rachman , Dzul Rachmaniah, Orchidea Raden Darmawan Rahmad Bustanul Anwar Rahmadiana, Nisa Rahmah, Annisa Alifia Rahmasari Nur Setyono Rahmat Hidayat Rahmawati, Norliana Rahmawaty Dako, Desy Natasya Rahmi, Hidayatur Ramadhani, Falah Aiken Renandra, Sahrun Jaya Retno Palupi Rifa’i, Muhammad Rifai, Muhammad Ayub Rihhadatul ‘Aisy, Zaki Rina Agustina Rizki, Daini Rizky Tetrisyanda rohayati rohayati Romadani, Anggit Tiyas Fitra Romadhoni, Mohammad Rosmaliati, Rosmaliati Rosyantita, Tania Tri Ryanda Luthfi Zaim Salam, Abdullah Faizurrahman Salasa Ariq Sungkono Salasa Ariq Sungkono Salasah, Rosmawati Salma, Shabrina Aulia Salsabila, Nanda Salsabilah, Tasa Saputra, Abdi Aldio Sari Kusumahati Shafriani, Nazula Rahma Shofa, Ghefira Zahira Silfi Rofiyana, Ari Siti Khotijah Siti Machmudah Siti Machmudah Siti Nurkhamdah Siti Nurkhamidah Siti Rosyafah, Siti Siti Zullaikah Soejoto Gondo Solikhah, Monika Putri Sri Martuti Sri Rachmania Juliastuti Sri Rachmania Juliastuti, Sri Rachmania Sudarman Sudiyono Marzuki Suharyanto Sulistyo, Agung Sumarno . Sunarti Sunarti Surya Mahyanti, Ni Wayan Susianto Susianto Susianto Susianto Susianto Swaditya Rizki Syahruddin, A Tamara Idrus, Qonita Tantular Nurtono Toto Iswanto Totok Rochana Tri Putri, Geby Harlia Ummaroch, Riza Utari, Sri Utomo, Widya Tri Virdiansyah, Wahyu Fiqih WA MARLIN, ALIN Wahyu Meka Wahyuni Eka Muqni Waroka, Linda Ardiya Warsono Sarengat Widiyastuti Widyantara, Aji Bagus Wijayanti, Agustiyani Winardi, Sugeng Windasari, Suci Wiryanto Wiryanto Wulandari, Febriana Tri Wulandari, Rr.Revani Putri Ayu Yanti, Yumi Zena Syaifillah, Umar Syah Zulfahmi Hawali Zulfahmi Hawali Zulfatun Janah, Dwi Rahma