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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Journal of Engineering and Technological Sciences Konversi Jurnal Teknik JURNAL REKAYASA KIMIA & LINGKUNGAN
Hari Rionaldo
Department of Chemical Engineering, University of Riau, Jl. HR Subantas KM 12,5, Kampus Bina Widya, Simpang Baru,Pekanbaru, Riau 28293
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Simulation of dimethyl ether production as LPG substitute using LNG from Arun terminal with tri-reforming and direct synthesis method Rahmatullah, Faiprianda Assyari; Pamungkas, Tegar; Mutia, Sarah; Zulfansyah, Zulfansyah; Rionaldo, Hari
Konversi Vol 13, No 1 (2024): April 2024
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v13i1.17946

Abstract

Increased demand for LNG compels Indonesia to import to meet these needs. Substituting LNG with alternative fuel emerges as a strategy to reduce LPG imports. One such alternative can be used for LPG substitution is Dimethyl Ether. Dimethyl ether is a colorless compound possesses a heating value of 30,5 MJ/kg and an energy equivalency with LPG ranging between 1,56 – 1,76. Dimethyl ether can be directly synthesized from synthetic gas produced through natural gas reforming. Production of synthetic gas from natural gas employs the tri-reforming method which integrating steam reforming, dry reforming, and partial oxidation methods in a single reactor offering optimal energy utilization advantages and minimal environmental impact. Dimethyl ether production from synthetic gas is using direct synthesis method, combining methanol synthesis and dehydration in a single reactor providing high conversion advantages compared to indirect synthesis method. Simulation was carried out using process simulator program ASPEN Plus V11. Based on the simulation results, dimethyl ether yield and selectivity is 99.62%.
Pengaruh Kondisi Proses Terhadap Yield dan Kadar Lignin Pulp dari Pelepah Sawit dengan Proses Asam Formiat Zulfansyah, Zulfansyah; Fermi, Muhammad Iwan; Amraini, Said Zul; Rionaldo, Hari; Utami, Meilany Sri
Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 1 (2012): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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Abstract

Formic acid pulping of oil palm frond was conducted to study the influence of process variables (formic acid concentration, hydrogen peroxide concentration, and pulping time) on the properties of pulp produced (yield pulp and lignin content). A second order polynomial model consisiting of three independent process variables was found to accurately describe the formic acid pulping of oil palm frond. The propose equations reproduce the experimental results for the dependent variables with erros less than 5% for both yield dan lignin content. The most influential factor on yield pulp was formic acid concentration. Whereas, the cooking time has greater influence on lignin content.Keywords: formic acid, lingocelulose, pulping, pulp organosolv, oil palm fronds
Co-Authors Anggrayni, Elma Dizikri, Dizikri Hasudungan, Janso Hutagalung, Maha Putra M. Iwan Fermi Mazlani Meilany Sri Utami Mutia, Sarah Nurhayati Nurhayati Pamungkas, Tegar Panjaitan, Angga Marusaha Tamba Rafi, M Khaidiz Rahmatullah, Faiprianda Assyari Randi Sanjaya, Randi Rizki, Juliana Siregar, Dompak M. Syahputra, Dede Warman Fatra, Warman Z Zulfansyah Zuchra Helwani Zulfansyah Zulfansyah