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All Journal Jurnal Pemberdayaan Masyarakat Indonesia (JPMI) International Journal of Renewable Energy Development
Simanjuntak, Fidelis Stefanus Hubertson
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Humanities Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Social Sciences

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Restrukturisasi Komprehensif Kopi Gongseng Guna Menghadapi Relevansi Pasar Saat Pandemi Simanjuntak, Fidelis Stefanus Hubertson; Eunike, Amanda Celine; Chrystalyn, Emily; Astuti, Ignatia Aprilia Dewi; Doohan, Michael; Dharmawan, Michael Lee; Sugiarto, Natael Liko; Aryono, Timotius Jason; Valanchie, Valerie
Journal Pemberdayaan Masyarakat Indonesia Vol 3 No 2 (2021): Jurnal Pemberdayaan Masyarakat Indonesia (JPMI)
Publisher : Pusat Pengabdian kepada Masyarakat (PPKM) Universitas Prasetiya Mulya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3219.898 KB) | DOI: 10.21632/jpmi.3.2.201-233

Abstract

Pandemi Covid-19 yang hadir pada tahun 2020 hingga saat ini memiliki banyak dampak terutama pada UMKM di Indonesia. Hal tersebut menjadi latar belakang kelompok melakukan penelitian ini yang dimana kelompok melakukan analisis bisnis mitra yang sedang berkembang selama masa Pandemi Covid-19. Selain itu, penelitian ini bertujuan untuk menganalisis bagaimana strategi mitra sebagai pemilik bisnis UMKM bernama Kopi Gongseng Anglo dapat bertahan selama pandemi Covid-19. Dengan membahas tantangan dan strategi yang dimiliki oleh mitra, kemudian diharapkan dapat bermanfaat bagi setiap individu yang memiliki bisnis maupun sedang merintis bisnis.
Effect of various silica-supported nickel catalyst on the production of bio-hydrocarbons from oleic acid Riyandi, Rafly; Rinaldi, Nino; Yunarti, Rika Tri; Dwiatmoko, Adid Adep; Simanjuntak, Fidelis Stefanus Hubertson
International Journal of Renewable Energy Development Vol 13, No 4 (2024): July 2024
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2024.60054

Abstract

The conversion of fatty acids into bio-hydrocarbons can be carried out through a deoxygenation (DO) reaction. Catalytic deoxygenation of fatty acids can occur through three reaction pathways: decarbonylation, decarboxylation, and hydrodeoxygenation. In this study, three kinds of silica were prepared: (i) silica obtained from the rice husk ash (RHA); (ii) synthetic mesoporous silica SBA-16; and (iii) commercial silica. All prepared silica was used as supported nickel (Ni) catalyst for bio-hydrocarbon production through DO reaction of oleic acid. The objective of this study was to investigate the effect of variations of silica on the reaction pathway and final products composition of DO reaction of oleic acid. The catalysts were characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD), surface area analysis, and NH3-temperature-programme desorption. Based on XRF and XRD analysis results, it can be concluded that nickel was successfully impregnated into all silica. All samples of catalysts were used in a reaction carried out at temperature of 285 °C under a pressure of 40 bar H2 for 2h. The results showed that all catalysts were able to convert oleic acid to bio-hydrocarbon with differences in products composition. The highest oleic acid conversion of 98.25% was achieved with Ni/RHA catalyst but the obtained liquid products was the lowest among other catalysts. It is found that this phenomenon was closely related to the acidity properties of the catalyst.
Co-Authors Aryono, Timotius Jason Astuti, Ignatia Aprilia Dewi Chrystalyn, Emily Dharmawan, Michael Lee Doohan, Michael Dwiatmoko, Adid Adep Eunike, Amanda Celine Nino Rinaldi Riyandi, Rafly Sugiarto, Natael Liko Valanchie, Valerie Yunarti, Rika Tri