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Highly Selective Bio-hydrocarbon Production using Sidoarjo Mud Based-Catalysts in the Hydrocracking of Waste Palm Cooking Oil Wega Trisunaryanti; Triyono Triyono; Iip Izul Fallah; Shafira Salsiah; Gesha Desy Alisha
Bulletin of Chemical Reaction Engineering & Catalysis 2022: BCREC Volume 17 Issue 4 Year 2022 (December 2022)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.17.4.15472.712-724

In this work, Lapindo mud (LM) was used as catalyst support. This is because the Lapindo mud has a high SiO2 content of 45.33 %. This research aims to produce a hydrocracking catalyst based on Lapindo mud through impregnation of Ni and Pt metals as well as grafting amine groups. Ni and Pt metals impregnation using wet impregnation method followed by amine group grafting. The best catalyst in this study was NiPt-NH2/LM which contained Ni and Pt metals, surface area, and pore diameters of 1.68 wt.% and 0.4 wt.%, 6.59 m2/g, 15.51 nm, respectively. The effectiveness of the catalyst was tested against temperature and catalyst: feed ratio. The catalyst with the best activity and selectivity was tested for reusability 3 times through hydrocracking process. The yield of liquid products obtained in the hydrocracking process of WPO using NiPt-NH2/LM catalyst with the optimum temperature and the weight ratio of catalyst:feed at 550 oC was 79.4 wt. % which consists of hydrocarbon compound of 55.9 wt.%. The yield of liquid products obtained in the hydrocracking WPO using the used NiPt-BH2/LM catalyst was 28.4 wt.% which consists of hydrocarbon compound of 23.6 wt.%. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Highly Selective Bio-hydrocarbon Production using Sidoarjo Mud Based-Catalysts in the Hydrocracking of Waste Palm Cooking Oil Wega Trisunaryanti; Triyono Triyono; Iip Izul Fallah; Shafira Salsiah; Gesha Desy Alisha
Bulletin of Chemical Reaction Engineering & Catalysis 2022: BCREC Volume 17 Issue 4 Year 2022 (December 2022)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.17.4.15472.712-724

In this work, Lapindo mud (LM) was used as catalyst support. This is because the Lapindo mud has a high SiO2 content of 45.33 %. This research aims to produce a hydrocracking catalyst based on Lapindo mud through impregnation of Ni and Pt metals as well as grafting amine groups. Ni and Pt metals impregnation using wet impregnation method followed by amine group grafting. The best catalyst in this study was NiPt-NH2/LM which contained Ni and Pt metals, surface area, and pore diameters of 1.68 wt.% and 0.4 wt.%, 6.59 m2/g, 15.51 nm, respectively. The effectiveness of the catalyst was tested against temperature and catalyst: feed ratio. The catalyst with the best activity and selectivity was tested for reusability 3 times through hydrocracking process. The yield of liquid products obtained in the hydrocracking process of WPO using NiPt-NH2/LM catalyst with the optimum temperature and the weight ratio of catalyst:feed at 550 oC was 79.4 wt. % which consists of hydrocarbon compound of 55.9 wt.%. The yield of liquid products obtained in the hydrocracking WPO using the used NiPt-BH2/LM catalyst was 28.4 wt.% which consists of hydrocarbon compound of 23.6 wt.%. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Biodiesel Production Process from Reutealis trisperma: Technology, Opportunities and Challenges Gesha Desy Alisha
CELEBES Agricultural Vol. 5 No. 2 (2025): CELEBES Agricultural
Publisher : Faculty of Agriculture, Tompotika Luwuk University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52045/jca.v5i2.887

Reutealis trisperma (sunan candlenuts) is a non-edible vegetable oil source that can be used as a feedstock for biodiesel production. The biodiesel production process from Reutealis trisperma seed oil involves several stages, including oil extraction, purification, as well as esterification and transesterification reactions using catalysts. This article aims to examine the technology of biodiesel production from Reutealis trisperma seeds, the challenges faced in industrial implementation, and its future development opportunities. Various oil extraction methods, such as mechanical pressing and solvent extraction are compared to determine the efficiency of crude oil conversion. Additionally, the use of heterogeneous and homogeneous catalysts in the transesterification process is analyzed to optimize biodiesel conversion. The results of the literature study conducted indicate that biodiesel from Reutealis trisperma has characteristics that comply with national and international biodiesel standards. However, there are several challenges in the production process, such as the availability of raw materials, the fatty acid content and composition of Reutealis trisperma, environmental impact, and sustainability aspects. The development of more environmentally friendly technology and the utilization of biomass waste-based catalysts present potential opportunities to enhance the sustainability of this biodiesel production.

Inisiasi Pembangunan Berkelanjutan di IKN: Partisipasi Akademisi Muda dalam Forum Riset Kolaboratif Gerbangtara Syarifudin, Achmad; Umar, Uswatul Hasanah; Saud, Oshlifin Ruchmana; Sepsamli, Letus; Alisha, Gesha Desy
ABDIKU: Jurnal Pengabdian Masyarakat Universitas Mulawarman Vol. 4 No. 1 (2025): ABDIKU : Jurnal Pengabdian Masyarakat Universitas Mulawarman
Publisher : Fakultas Kehutanan dan Lingkungan Tropis, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/abdiku.v4i1.2821

Program Gerbangtara (Gerakan Bangun Nusantara) merupakan program yang mempertemukan akademisi muda dari berbagai perguruan tinggi di Kalimantan Timur sebagai respon terhadap tantangan dan peluang pembangunan berkelanjutan di Ibu Kota Negara (IKN). Tujuan dari artikel ini adalah untuk mendeskripsikan keikutsertaan delegasi Universitas Mulawarman dalam forum diskusi klaster riset yang diselenggarakan di Kabupaten Paser, Kalimantan Timur. Metode yang digunakan meliputi penelitian partisipatif, meliputi diskusi terfokus lintas disiplin, perumusan gagasan strategis, dan penyusunan naskah rekomendasi (working paper). Delegasi Universitas Mulawarman, khususnya dari Fakultas Kehutanan dan Lingkungan Tropis, berkontribusi dengan menyampaikan perspektif tentang tata kelola hutan dan konservasi ekologi dalam proses perencanaan kolaboratif yang sejalan dengan prinsip Tujuan Pembangunan Berkelanjutan (SDGs). Rekomendasi yang disampaikan meliputi pelestarian keanekaragaman hayati hutan hujan tropis dan pengembangan bank benih dan bank gen sebagai infrastruktur ekologi jangka panjang. Inisiatif tersebut selaras dengan gagasan Tanpa Kemiskinan (SDG 1), dengan mempromosikan lapangan kerja melalui program restorasi dan ekowisata. Sementara itu, gagasan Konsumsi dan Produksi yang Bertanggung Jawab (SDG 12) mendukung pengelolaan sumber daya berbasis hutan yang berkelanjutan. Keluaran dari partisipasi ini adalah sebuah konsep yang disebut dengan working paper. Selain itu, diskusi kolaboratif dalam program ini juga memperkaya wawasan penulis sebagai akademisi, khususnya dalam memberikan masukan dan kontribusi terhadap perumusan kebijakan dari perspektif kolaborasi berbasis pentahelix. Ke depannya, forum yang melibatkan partisipasi aktor pentahelix lainnya sangat penting sebagai bagian dari strategi pembangunan nasional yang berbasis pada sains, kolaborasi, dan prinsip keberlanjutan.

Empowerment and Education on Family Medicinal Plants to Support Traditional Medicine in Dasa Wisma Gropus RT 31 and RT 33, Sungai Dama Village, Samarinda Ilir District Sepsamli, Letus; Hidayat, Imam; Alisha, Gesha Desy; Dirna, Fitria Cita; Mondina, Resta Rene; Syarifudin, Achmad
Keris: Journal of Community Engagement Vol. 5 No. 2 (2025): In Press: KERIS: Journal of Community Engagement
Publisher : Institut Pesantren Sunan Drajat Lamongan, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55352/keris.v5i2.2253

Urban communities plant more ornamental and vegetable crops than medicinal plants, although medicinal plants are one solution for maintaining health and supporting the treatment of illnesses within the family. There are many types of family medicinal plants useful in curing diseases that can be grown in the home garden or on the terrace. This community service aims to increase the knowledge of Dasa Wisma mothers in RT 31 and RT 33, Sungai Dama Village, about the types of family medicinal plants and to increase their knowledge of how to process and use family medicinal plants. The method applied in this service is lectures to educate about family medicinal plants, their processing, and their use. There were 35 Dasa Wisma participants. Based on the observation results, this service has a positive impact because the mothers actively asked questions during the discussion session after the material was presented. The Dasa Wisma mothers asked for more detailed information about how to process and use family medicinal plants. The average pre-test score obtained was 89.47, while the average post-test score was 93.52. The range of pre-test scores given before the material was presented and the post-test scores given after the presentation increased by 4.05. This indicates an increase in the knowledge of Dasa Wisma mothers regarding the types of medicinal plants in the family, as well as their processing and use. This community service effectively increased the knowledge of Dasa Wisma mothers about medicinal plants, how to process them, and their uses.

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