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All Journal Jurnal Kesehatan Lingkungan indonesia KONSELI: Jurnal Bimbingan dan Konseling (E-Journal) Jurnal Hasil Penelitian Industri JURNAL SERAMBI ILMU SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL PENDIDIKAN TAMBUSAI SCAFFOLDING: Jurnal Pendidikan Islam dan Multikulturalisme Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat El-Mujtama: Jurnal Pengabdian Masyarakat International Journal of Social Service and Research Makara Journal of Technology JURUTERA (Jurnal Umum Teknik Terapan) Analysis : Journal of Education Jurnal Komprehenshif El-Mujtama: Jurnal Pengabdian Masyarakat Jurnal Maisyatuna JURNAL REKAYASA KIMIA & LINGKUNGAN
Mahidin Mahidin
Jurusan Teknik Kimia Universitas Syiah Kuala, Jl. Syech Abdurrauf, No. 7, Banda Aceh - Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Journal : Makara Journal of Technology

 1 
Physical Characterization and Desulfurization of Biobriquette Using Calcium-Based Adsorbent Mahidin, Mahidin; Gani, Asri; Khairil, Khairil
Makara Journal of Technology Vol. 15, No. 2
Publisher : UI Scholars Hub

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Combustion of coal and co-combustion of their co-fuel contribute to gas emissions. Among the gas emissions are SOx, NOx, CO and CO2. Introduction of calcium based adsorbent is addressed to absorb SO2 that release to the atmosphere during the combustion process. Objective of the research is at first to observe the physical characteristics of biobriquettes as a function of briquette compositions (coal to palm kernel shell ratios) and Ca/S ratios (Ca in adsorbent and S in briquette) using a natural adsorbent (shellfish waste). The second objective is to investigate desulfurization characteristics as a function of Ca/S ratios and desulfurization temperatures at coal to palm kernel shell ratio of 90:10 (wt %). Ratios of coal to palm kernel shell in this study are 90:10, 80:20, 70:30, 60:40 and 50:50; and Ca/S ratios are 1:1, 1.25:1, 1.5:1, 1.75:1 and 2:1. Binding agent used is the mixture of Jatropha curcas seeds and starch as much as 10% (wt). It was found that introducing the palm kernel shell and adsorbents in the coal briquette affect the water resistant and compressive strength. The highest water resistance and compressive strength were 5,165 second and 34 kg/cm2, respectively. The lowest SO2 level found in this study was 1 ppm for all Ca/S ratios, except for 1:1.
CDM Potential in Palm Solid Waste Cogeneration as an Alternative Energy in Aceh Province Mahidin, Mahidin; Machdar, Izarul; Faisal, Muhammad; Nizar, Muhammad
Makara Journal of Technology Vol. 16, No. 2
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Empty Fruit Bunch (EFB) as a solid waste in Crude Palm Oil (CPO) industry does not utilized yet as an alternative energy source to generate electricity. It is well known that use of solid wate (biomass) as an energy source is part of the Clean Development Mechanism (CDM) scheme due to direct reduction of Green House Gases (GHGs) emission and provide a direct contribution to sustainable development. Utilization of EFB as a source of energy is very potential to be implemented in Aceh since this province has 25 CPO Mills at the moment which actively produce about 870,000 ton EFB per year. This study is subjected to evaluate the potency of electricity from EFB theoretically by using primary data (survey data) and secondary data. Potency of EFB and number of electricity produced from that EFB are estimated using primary data and direct combustion scenario, respectively. Calculation methods for emission reduction acieved are done by AMS-I.D: Renewable electricity generation to the grid and AMS-III.E: Methane emissions avoided from dumping at a solid waste disposal site. The result of this investigation shows that energy consumption in 25 CPO Mills is 45 GW(e)h per year. Evidently, the number of energy/electricity which is potential to be produced by using 75% EFB is 1,047 GWh per year; so that the GHGs emission reduction up to 171,232.21 tCO2e per year.
Use of Green Mussel Shell as a Desulfurizer in the Blending of Low Rank Coal-Biomass Briquette Combustion Mahidin, Mahidin; Gani, Asri; Hani, M. Reza; Syukur, Muhammad; Hamdani, Hamdani; Khairil, Khairil; Rizal, Samsul; Hadi, Abdul; Mahlia, T.M.I.
Makara Journal of Technology Vol. 20, No. 2
Publisher : UI Scholars Hub

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Calcium oxide-based material is available abundantly and naturally. A potential resource of that material comes from marine mollusk shell such as clams, scallops, mussels, oysters, winkles and nerites. The CaO-based material has exhibited a good performance as the desulfurizer or adsorbent in coal combustion in order to reduce SO2 emission. In this study, pulverized green mussel shell, without calcination, was utilized as the desulfurizer in the briquette produced from a mixture of low rank coal and palm kernel shell (PKS), also known as bio-briquette. The ratio of coal to PKS in the briquette was 90:10 (wt/wt). The influence of green mussel shell contents and combustion temperature were examined to prove the possible use of that material as a desulfurizer. The ratio of Ca to S (Ca = calcium content in desulfurizer; S = sulfur content in briquette) were fixed at 1:1, 1.25:1, 1.5:1, 1.75:1, and 2:1 (mole/mole). The burning (or desulfurization) temperature range was 300-500 °C; the reaction time was 720 seconds and the air flow rate was 1.2 L/min. The results showed that green mussel shell can be introduced as a desulfurizer in coal briquette or bio-briquette combustions. The desulfurization process using that desulfurizer exhibited the first order reaction and the highest average efficiency of 84.5%.
Co-Authors Abdul Aziz Rusman Abdul Hadi Agustami Sitorus, Agustami Agustina, Liana Alhamidi Yusran, Alhamidi Ameilia Zuliyanti Siregar Angi, Nur Fadila Asri Gani Ayyub, Muhammad Carmen Martin Cesar R. Chamorro Cut Mutiawati Cut Nurmaliah Darmadi Darmadi Delviga, Delviga Dhedia, Muhammad Fannka Djuned, Fauzi Muhammad Fitriani Fitriani Hamdani Hamdani Hani, M. Reza Harti, Marisa Hasibuan, Ali Daud Hasibuan, Nurmiah Hisbullah Hisbullah Hrp, Muhammad Royhan Husni Husin Indera Sakti Nasution Izarul Machdar, Izarul Jose J. Segovia Ketut Tirtayasa Khairil Khairil Khairul Anwar Khalila Daulay, Nurika Kusuma, Debby Widya Lubis, Aismat Ihsan Mahyuddin Mahyuddin Mariana Mariana Mashadi Mashadi Melinda Melinda Meuthia Busthan, Meuthia Meutia Nauly Mia Aulia, Mia Miguel A. Villamanan Muhammad Dani Supardan Muhammad Faisal Muhammad Nizar Muhammad Syukur Muhibbuddin Muhibbuddin Muhibuddin Muhibuddin, Muhibuddin Muhtadin Muhtadin Nasrul Arahman Nasrul Nasrul Nuraida Nuraida Nurbaini, Nurbaini Oktaviani, Coryna Puspita, Anggun Ramli, Ichwana Razali, Nasrullah Reza, Alvan Ade Sembiring, Rinawati Sipayung, Dewi Mentari Siregar, Netti Herlina Siregar, Rahmah Sudana Siti Sahara Sudarmi, Raudhatul Aulianatia Suhada, Deksa Imam Sulastri Sulastri Susmita Br. Siregar, Tiya Modi Syahiddin Dahlan Said Syukri, Makmur T.M.I. Mahlia Teuku Azuar Rizal Tulus Tulus Utami, Putri Agus Zulkifli Nasution