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All Journal Jurnal technoscientia JURNAL TEKNOLOGI TECHNOSCIENTIA Jurnal Riset Teknologi Pencegahan Pencemaran Industri West Science Social and Humanities Studies Jurnal Polimesin
Aulia, Haris Numan
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Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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SIMULASI ASPEN HYSYS PADA KOLOM ABSORBSI GAS CO2 DENGAN SOLVEN METILDIETANOLAMINE (MDEA) Aulia, Haris Numan
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 14 No 2 Maret 2022
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v14i2.3579

Abstract

Beberapa impuritis yang terkandung dalam gas alam harus dibersihkan terlebih dahulu. Kontaminan yang paling banyak dijumpai yaitu gas hydrogen sulfida (H2S) dan gas karbondioksida (CO2). Gas H2S merupakan senyawa asam yang sangat berbahaya bagi kesehatan dan lingkungan sedangkan gas CO2 bisa memperkecil nilai kalor pada gas alam dan membuat korosi pada perpipaan sehingga harus dihilangkan. Proses absorpsi dengan memakai solven alkanolamine merupakan salah satu teknologi penghilangan gas H2S dan CO2 yang sering dipakai. Pada penelitian ini solven yang dikaji adalah metildietanolamina (MDEA). Pada simulator komersial seperti Aspen Hysys terdapat proses absorpsi kimia. Tujuan dari penelitian ini untuk mengetahui pengaruh suhu solven dan konsentrasi solven terhadap komposisi CO2/H2S serta loading CO2/H2S pada sweet gas. Penelitian ini memperlihatkan simulasi absorbsi gas CO2/H2S menggunakan solven MDEA. Semakin besar temperatur operasi maka loading CO2/ H2S makin besar tetapi komposisi CO2/ H2S di sweet gas makin rendah.
SIMULASI ASPEN HYSYS PADA KOLOM ABSORBSI GAS CO2 DENGAN SOLVEN METILDIETANOLAMINE (MDEA) Aulia, Haris Numan
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 14 No 2 Maret 2022
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v14i2.3579

Abstract

Beberapa impuritis yang terkandung dalam gas alam harus dibersihkan terlebih dahulu. Kontaminan yang paling banyak dijumpai yaitu gas hydrogen sulfida (H2S) dan gas karbondioksida (CO2). Gas H2S merupakan senyawa asam yang sangat berbahaya bagi kesehatan dan lingkungan sedangkan gas CO2 bisa memperkecil nilai kalor pada gas alam dan membuat korosi pada perpipaan sehingga harus dihilangkan. Proses absorpsi dengan memakai solven alkanolamine merupakan salah satu teknologi penghilangan gas H2S dan CO2 yang sering dipakai. Pada penelitian ini solven yang dikaji adalah metildietanolamina (MDEA). Pada simulator komersial seperti Aspen Hysys terdapat proses absorpsi kimia. Tujuan dari penelitian ini untuk mengetahui pengaruh suhu solven dan konsentrasi solven terhadap komposisi CO2/H2S serta loading CO2/H2S pada sweet gas. Penelitian ini memperlihatkan simulasi absorbsi gas CO2/H2S menggunakan solven MDEA. Semakin besar temperatur operasi maka loading CO2/ H2S makin besar tetapi komposisi CO2/ H2S di sweet gas makin rendah.
Analysis of Vehicle Emission Policies and Electric Vehicle Incentives on Air Pollution and Sustainable Transportation Use in Jakarta, Indonesia Judijanto, Loso; Nugroho, Budi Sulistiyo; Annasit, Annasit; Aulia, Haris Numan; Furqon, Zami
West Science Social and Humanities Studies Vol. 2 No. 06 (2024): West Science Social and Humanities Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsshs.v2i06.975

Abstract

This research investigates the impact of vehicle emission policies and electric vehicle incentives on air pollution perceptions and sustainable transportation use in Jakarta, Indonesia. Through a quantitative analysis employing structural equation modeling, survey data from diverse stakeholders are analyzed to assess the relationships between key variables. Findings indicate significant associations between stringent vehicle emission policies, electric vehicle incentives, lower air pollution perceptions, and increased sustainable transportation use. These results underscore the importance of comprehensive policy measures in promoting environmental sustainability and fostering sustainable transportation practices in urban areas.
The Potency of Biodiesel Production from The Local Used Frying Oil Through The Electrocatalysis Method Aulia, Haris Numan
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 14 No. 1 (2023): May
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2023.v14.no1.p40-52

Abstract

The objective of this study was to optimize the operating conditions for an electrocatalytic method of producing biodiesel from local used frying oil (UFO). The effects of electrical voltages (5-30 V), methanol-to-oil molar ratios (4:1-8:1), KOH catalyst concentrations (0.5-1.25% w/w), and electrolysis time (30-120 min) on biodiesel yield were investigated. The highest biodiesel yield of 95.3% was obtained at a voltage of 30 V, methanol-to-oil molar ratio of 6:1, catalyst concentration of 1% w/w, and electrolysis time of 120 min. A regression model was developed to predict the optimum operating conditions, resulting in a maximum biodiesel yield of 95.54%. The predicted optimum operating conditions were a voltage of 24.4 V, methanol-to-oil molar ratio of 5.8:1, catalyst concentration of 1% w/w, and electrolysis time of 120 min. The net profit of the biodiesel business using local UFO as a feedstock was estimated to be IDR 738,000 per month based on a simple economic calculation. These findings demonstrate the potential for using electrocatalytic methods to produce biodiesel from local UFO, and the economic feasibility of producing biodiesel in small-scale industries.
Kinetics of transesterifying multifeedstock oil into biodiesel Aulia, Haris Numan
Jurnal Polimesin Vol 22, No 6 (2024): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i6.5609

Abstract

The synthesis of biodiesel is typically performed using homogeneous catalysts and high-temperature transesterification methods. This research aims to investigate the kinetics of transesterification reactions in biodiesel synthesis using a blend of six different types of oils: coconut oil, palm oil, soybean oil, canola oil, sunflower oil, and waste cooking oil. An equal volume of each oil is used to combine the multifeedstock oil, totaling 300 ml. After pretreatment, the multifeedstock oil is heated to 30, 40, 50, and 60°C, combined with a methoxide solution, and blended for a variable number of time intervals of 10, 20, 30, 40, 50, and 60 minutes. After a 24-hour stay, the biodiesel is cleaned and separated from the centrifuge's water content. The biggest conversion, which was attained at 60°C with a reaction time of 60 minutes, was reported in the study's results. Utilizing a base catalyst in accordance with the second-order kinetics of the biodiesel transesterification reaction of multifeedstock oil.
Co-Authors Annasit, Annasit Furqon, Zami Judijanto, Loso Nugroho, Budi Sulistiyo