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Journal : JURNAL REKAYASA KIMIA

Perilaku Reduksi Briket Bijih Besi dan Batubara Peringkat Rendah Aceh Ali, Nurdin; Khairil, Khairil; Saputra, Mahendra
Jurnal Rekayasa Kimia & Lingkungan Vol 13, No 1 (2018): Jurnal Rekayasa Kimia & Lingkungan (June, 2018)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v13i1.10185

Abstract

Peneltian ini adalah bertujuan untuk mengkaji tentang pengolahan bijih besi menggunakan metode reduksi langsung berbasis pada batubara peringkat rendah dari Nagan Raya, Aceh. Proses reduksi langsung menggunakan reaktor pemanas listrik untuk mengsimulasikan temperatur reduksi. Temperatur reduksi yang digunakan adalah 550o, 650o, dan 750oC, kemudian dinjeksikan gas CO2 dan N2 sebanyak 10 dan 1 liter/menit sebagai media pereduksi. Rasio persen komposisi batubara, bijih besi dan ter yang digunakan adalah 80:10:10, 70:20:10, dan 60:30:10. Model shrinking core diaplikasikan untuk mempelajari prilaku reduksi briket bijih besi dan batubara. Hasil penelitian menunjukkan, bahwa laju reduksi meningkat dengan meningkatnya persen batubara briket, temperatur dan interval waktu reduksi. Laju penurunan massa dan reduksi briket maksimum terjadi pada temperatur 750oC dengan variasi campuran 60:30:10 adalah 0,237 dan 23,66%. Energi aktivasi untuk variasi batubara 10, 20 dan 30% berturut-turut adalah 10,14, 3,73 dan 2,82 kJ/mol.
Modeling and Simulation on NOx and N2O Formation in Co-combustion of Low-rank Coal and Palm Kernel Shell Mahidin, Mahidin; Gani, Asri; Khairil, Khairil
Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 2 (2012): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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

Abstract

NOx and N2O emissions from coal combustion are claimed as the major contributors for the acid rain, photochemical smog, green house and ozone depletion problems. Based on the facts, study on those emissions formation is interest topic in the combustion area. In this paper, theoretical study by modeling and simulation on NOx and N2O formation in co-combustion of low-rank coal and palm kernel shell has been done. Combustion model was developed by using the principle of chemical-reaction equilibrium. Simulation on the model in order to evaluate the composition of the flue gas was performed by minimization the Gibbs free energy. The results showed that by introduced of biomass in coal combustion can reduce the NOx concentration in considerably level. Maximum NO level in co-combustion of low-rank coal and palm kernel shell with fuel composition 1:1 is 2,350 ppm, low enough compared to single low-rank coal combustion up to 3,150 ppm. Moreover, N2O is less than 0.25 ppm in all cases.Keywords: low-rank coal, N2O emission, NOx emission, palm kernel shell
A Comparison of Energy Profile between Castilla Leon, Spain and Aceh, Indonesia Mahidin, Mahidin; Khairil, Khairil; Martin, Carmen; Villamanan, Miguel A.; Segovia, Jose J.; Chamorro, Cesar R.
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 4 (2010): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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

Abstract

A comparative study on energy production and consumption between Aceh, Indonesia and Castilla Len, Spain has been conducted. Analysis was carried out on the statistical data such as population, GDP, energy production and energy consumption. Some interesting results were obtained. An average energy production during 2001 2004 in Aceh is up to 28 times of the average energy production in Castilla Len; however, the average energy consumption during those four years is only 16.74% of the average energy consumption of Castilla Len. Aceh's average GDP from 2001 to 2004 is 3,357.16 million Euros, stands at only 8.15% of Castilla Len's average GDP about 41,175.75 million Euros.Keywords: economic growth, final energy consumption, GDP, primary energy production
Co-Authors Aan Marsela Abdul Hadi Abdul Wahid Abdullah Abdullah Abdullah Abdullah Achmad Fikri Sallaby Ade Pratama, Efran Fernando Adi Setiawan Adiansyah, Febri Adinda, Raissya Afdhal Afdhal Afrija, Lia Nur Agus Kurniawan, Rafiq Aji Sudarsono Akbar, Abdussalam Al Ali, Adiwijaya ALI, NURDIN Alinse , Rizka Tri Andi Hartono, Andi Andry, Ricky Zulfi Aprianto, Sandi Aptrio, Zendi Aripilahi, Edwin Arsy Tiara, Annisa Asiah MD Asiah, M.D Asnawati Asnawati Asri Gani Asyari, Ahmad Azhari Azhari Aziz, Muhammad Al Bagus Putra Wijaksana Beny Setiawan Beti , Ilayati Beti, Ila Yati Budiarti, Iis Giri Carmen Martin Catrayasa, I Wayan Cesar R. Chamorro Chairunnisa Chairunnisa Cut Nurmaliah D., Asiah M. Datu, Irka Tangke David Alvindo deri apriansyah Devi Syafrianti Devi Syafrianti, Devi Dewangga, Hoki Dewantara, Dewantara Dharma, Andree Adhi Diah Azhari Dimas Aulia Trianggana Dwipoyono, Nopri Eddy Koesoemanegara Eko Prasetyo Rohmawan Eko Suryana Elka Lukman Hakim Ernawati Ernawati Evi Salasiah A, Evi Salasiah Faisal Faisal Faisal Mustafa Fajriana, Mona Fat, Pohaja Syahrul fathur hadyan Fatimah, Dimas Mekar Ayu Fazrina Fazrina Feri Hari Utami, Feri Hari Ferry Hari Utami Fitria, Humairah Fredricka, Jhoanne Gultom, Doni Johan Hafnati Rahmatan Hamdani Hamdani Handayani, Setiaji Ayu Handayani, Sri Hani, M. Reza Hari Aspriyono Hasanuddin Hasanuddin Hasanuddin Hasanuddin Hedriansyah Hedriansyah Hendri Alamsyah Herlina Latipa Sari Hermana, M.Arafat Herri Fariadi, Herri Herrianto, David Heti Heti, Heti IDA SAFITRI Indra Kanedi Indriani, Inda Mareta Irawansyah, Riki Irwanda, A’af Teguh Ismul Huda Iswadi Iswadi Jose J. Segovia Juju Jumadi Julia Julia Julistina, Melly Juniansyah, Dedy Jusuf Wahyudi Kemala Sari Ketut Tirtayasa Khairunisak Khairunisak Kodia, Elsi Kusmajid, Kusmajid Leni Natalia Zulita Lia Astari Lianda, Deri Linia Junita, Empi Desni Luh Putu Ratna Sundari Luthfi Luthfi M Ali S Mahidin Mahidin Malia Safriani Mesterjon Mesterjon Miguel A. Villamanan Moh Syahrul A’dlom Muhammad Syukur Muhibbuddin Muhibbuddin Muhibbuddin Muhibbuddin Muhibbudin, Muhibbudin Muthoharoh, Marfuatin Ngaliman, Ngaliman Ningrum, Endah Puspa Ninosari, Devina Noviasyah, Nonong NST, Khairil Fajri Nugroho Ponco Riyanto Nur Aisyah Jalali, Nur Aisyah Nurjanah, Firda Nur’aini, Hesti Oktaria, Nenni Pebrianto, Debi Prama Wira Ginta Pratama, Yudha Putra, Adi Pramono Putra, Januar Syah Putra, Oktian Dwi Pradana Putri, Anggita Gledisyah Rahmadhan, Ihsan Rahman, Riski Rahmatan*, Hafnati Ramadani, Tri Rena Ariyanti Ridwan, Ridwan Riyanto, Defri Rizkina Manik Rohmawan, Eko Prasetiyo Rosdiana Meliana Situmorang ROSMERI, ROSMERI Roy Syahputra Rusli, Govi S Siswanto Safrida Safrida Sahputra, Ikwan Sallaby, Achmad Fikri Samingan Samingan Sania, Yuni Santoso, Feby Sapri Sapri sapri sapri Saputra, Aditia Saputra, Mahendra Saputra, Peni Saputra, Tommy Ade Sari, Venny Novita Sartika, Devi Sarwendah Ratnawati Hermanto Sarwo Edhy Sofyan sefriansyah sefriansyah Shobori, Ihsan Silviani, Yessi sono, Aji Sudar Soraya, Yenni Supardi, Reno Supriatno Supriatno Suwarni Suwarni Suwarni, Meli Syafputra, Herizal T.M.I. Mahlia Tarsani, Tarsani Toibah Umi Kalsum Tongku Nizwan Siregar Tutiliana ., Tutiliana Ulhusna, Fitrah Asma Utama, Anugrah Utama, Delta Anugrah Utami, Liza Venny Novita Sari Wahyu Hidayat Wahyudi, Aryo Sumirso Wandi, Dehar Wijaya, Hendi Raden wijaya, randi Wulandari Wulandari Wusnah Wusnah, Wusnah Yasa, Pri Yogha yono, Hari Aspri Yupianti, Yupianti Yurni Suasti Yusuf, Abdilah ZARKASI, MUHAMMAD Zulfiandry, Ricky Zulfiandy, Ricky