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All Journal Petrogas : Journal of Energy and Technology West Science Social and Humanities Studies
Annasit Annasit
Politeknik Energi dan Mineral Akamigas
Humanities Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Law, Crime, Criminology & Criminal Justice Public Health Social Sciences

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OPTIMASI TEMPERATUR KALSINASI TERHADAP KARAKTERISTIK DAN TRANSFORMASI KRISTAL SUPPORT ALUMINA DI PT. PERTAMINA RESEARCH TECHNOLOGY INNOVATION Annasit Annasit; Marthina Valentina Manila; Agus Setiyono
PETROGAS: Journal of Energy and Technology Vol 5, No 2 (2023): October
Publisher : Sekolah Tinggi Teknologi MIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58267/petrogas.v5i2.147

Abstract

Boehmite merupakan direct parent dari γ-Al2O3, morfologi dan ukuran partikel boehmite mempengaruhi karakter γ-Al2O3 yang dihasilkan. Sifat boehmite dapat berbeda-beda diantaranya disebabkan oleh metode pembuatan yang dikembangkan. Ada berbagai cara untuk sintesis boehmite seperti metode sol gel, presipitasi, hidrolisis alkoksida alumina, dekomposisi termal aluminium sulfat, deposisi uap logam organik dengan Al(CH3)3. Di samping metode pembuatan boehmite, kondisi pembuatan selama transformasi boehmite menjadi gamma alumina, juga mempengaruhi sifat penyangga alumina yang dihasilkan. Penelitian tersebut mempelajari perubahan yang mempengaruhi sifat alumina. Hasil penelitian menunjukkan bahwa sifat gamma alumina dapat diatur melalui rasio mol asam nitrat terhadap boehmite, rasio mol ammonia terhadap boehmite, lama pengeringan, dan temperatur kalsinasi. Berkaitan dengan hal ini maka penulis bertujuan untuk melihat “Optimasi Temperatur Kalsinasi Terhadap Karakteristik dan Transformasi Kristal Support Alumina”.
Analysis of Vehicle Emission Policies and Electric Vehicle Incentives on Air Pollution and Sustainable Transportation Use in Jakarta, Indonesia Loso Judijanto; Budi Sulistiyo Nugroho; Annasit Annasit; Haris Numan Aulia; Zami Furqon
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.
Co-Authors Agus Setiyono Budi Sulistiyo Nugroho Haris Numan Aulia Loso Judijanto Marthina Valentina Manila Zami Furqon