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Journal : Jurnal Teknologi dan Inovasi Industri

- PEMANFAATAN LIMBAH MINYAK JELANTAH SEBAGAI SUMBER BAHAN BAKAR ALTERNATIF DALAM PRODUKSI BIODIESEL MENGGUNAKAN KATALIS CaO/rGO: - Rohani, Siti; Mulyadi, Dikdik; Mukmilah Yuningsih, Lela
Jurnal Teknologi dan Inovasi Industri (JTII) Vol. 6 No. 2 (2025)
Publisher : Fakultas Teknik, Universitas Lampung

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Abstract

Heterogeneous CaO catalyst composited with rGO has been developed to improve catalytic efficiency and biodiesel yield. Used cooking oil was chosen as the feedstock because it is underutilized, while rGO was used to overcome the weaknesses of CaO, which has a small surface area, as well as to enhance catalyst activity through an increased number of active sites and catalytic stability. The purpose of this study is to increase the yield and characterize biodiesel according to SNI 04-7182-2015. Biodiesel production was carried out through the transesterification reaction of triglycerides with metanol using CaO/rGO catalyst. Variations in the molar ratio of oil to metanol (1:6, 1:9, and 1:12) and catalyst concentration (0.5% and 1%) at 55–60°C were applied to optimize the yield. The resulting biodiesel was characterized based on physical parameters, including density, viscosity, flash point, water content, and acid number according to SNI standards. The best result was obtained at a metanol to oil molar ratio of 1:12 with the addition of 1% catalyst, yielding a biodiesel yield of 89.5%, all of which met the SNI standards except for viscosity, which was lower than the SNI specification. Without catalyst at a 1:9 ratio, biodiesel yield reached only 65%. The CaO/rGO catalyst can increase biodiesel yield at a 1:12 ratio and meets SNI standards for flash point, acid number, water content, and density but does not meet the SNI standard for viscosity.
Co-Authors A.A. Ketut Agung Cahyawan W Abas, Muh. Abdullah Abdullah Ade Suyani Agung Prasetyo NW Agustina, Hiqma Nur Ahmad Juanda Akmal Indra Al Farizi, Ahmad Bayu Alfiqri, M.pr Alifiyanti Muharramah Amalia, Siska Amelia Putri, Ira Amelia, Afritha Amiruddin Analisti, Dea Angelina, Tria Shinta Anggita, Anggita Anggraini, Wieke Anjar, Agus Any Setyaningsih Any Setyaningsih, Any Armeli Zulfa, Mahda Asikin, Uti Astuti Astuti - AYU WULANDARI Bagus Pria Alwadipa Budi Utama, Budi Chairani, Liza Custer, Johny Deinsyah, Putri DESI KUMALA SARI Desi Kumalasari Dewani, Shakira Listi Putri Dewi, Anita Sartika Dhirah, Ulfa Husna Dikdik Mulyadi Dimas Wahyu Wibowo Disyon, Huta Driana Leniwati Dwiryanti, Rizki Efriyanti, Liza Eka Tri Wulandari, Eka Tri Elisatris Gultom Enny Mulyatsih Erlisnawati Erlisnawati Evi Silvana Muchsinati Fadillah, Yudhi Fahmi Dwi Mawardi Faisal Ananda Farulyan, Neska Fauzi Fauzi Fhatirisq, Incik Erick Fikron Nisa’, Zainab Firdaus Firdaus Hadi Pranoto Hak, Pendais Hamid Mukhlis Hanayeen, Nadia Hellen Febriyanti Hermi Yanzi Hidayat, Nazwin Hidayati - Hisham, Muhammad Rivaldy Hopeman, Teofilus Ardian Humaidi, Irfan Ahmad Ida Ayu Putu Sri Widnyani Ika Avrilina Haryono Ika Yulia Sari Ilham Hudi Aim Abdulkarim Kokom Komalasari, Ilham Hudi Aim Abdulkarim Indah Puspitasari Indrianti, Titien Indriyani Indriyani Irawan Suntoro Istifaiyah, Alda Imroatul Junita Junita Juwita Desri Ayu Kasman Kesuma, Putri Kesuma, Putri Zalika Laila Mardiah Khairuddin - Kharanza, Yoenua Khusuma Sapitri, Lina Kirana, Rika Dani Kurniawan, Hikmal Kurniawaty, Dewi Laila Rahmawati Laila, Henni Latipah Hanum Batubara Lestari, Vika Linda Puspita LINDA PUSPITASARI - A11111054, LINDA PUSPITASARI Lisman, Muhammad Listiana, Endang Lutfiah Hafidzah M. Hufron Mahmud Alpusari Mareza Yolanda Umar Marhini, La Ode Martha, Fadhil Rizki Marzuki Noor Maulidia, Shafira Zaky Maulidiyah, Fitrotul Melianti, Agnes Milla Marlina Assegaf Mitayani Purwoko, Mitayani Moh. Anshori Aris Widya Mohammad Rizal Muhaimin Muhamad Aji Purwanto Muhammad Arif Batubara Muhammad Arman Muhammad Umar Mukmilah Yuningsih, Lela Mundijo, Trisnawati Mutiara, Nabella Nainggolan, Ferdinand Nasution, Saidah Tunnur Nila Karimah Nita Maya Valiantien Nopi Anggista Putri Novalia Widiya Ningrum Novebri Novebri Nufus, Wealthy Sakinati Nugerahaeni, Sucia Dwi Nugrahaningtyas Fatma Anyassari Nurazizah, Amalia Siti Nurhaya, Nurhaya Nursantri Yanti Nurul Fahmi Oktariza, Rury Tiara Oktavianti, Rizky Patriani, Ira Paulus, Vitalius Prabowo, Muhammad Ilham Putro Primadevi, Inggit Psiari Kusuma Wardani Putra R, Rahmadsyah Putra, Edy Yulianto Putra, Herman Eka Putri Deinsyah Putri, Arsy Putria, Sinta Julia Liona Rachmawati Rachmawati Rahma Yenni Rahmah, Yunita Raisha, Zafira Ananda Ramadhan Ramadhan Ramayanti, Indri Ramdhan Ratih Anggraini, Ratih Retnawati, Heni Rezky Pramana Putra Rina Kartikasari, Rina Rindi Genesa Hatika Rini Wahyuni Rini Wahyuni Ririn Setyowati Riska Safitri, Riska Riska Siregar Riski Khairani Roshid, Mohammod Moninoor Saputra, Dika Saputra, Rio Sari Wahyuni, Lily Sudhartio, Sari, Devina Puspita Sekarsari, Putri Seltina, Indah Septika Yani Veronica Setyawan, Agustinus Silvia Rita, Silvia Siregar, Rumiah Siti Komariah Siti Maesaroh Siti Rahmawati Sri Haryanto Sri Rahayu, Mariya Suarni, Ertati Suasono, eddy Sucahyo Masan Al Wahid Suci Irawati Sugeng Hariyanto Susi Irianti Syahrilfuddin Syahrilfuddin, Syahrilfuddin Syarah, Swari Taufik Taufik Titin Tiza Yaniza Tri Inda Fadhila Rahma Tridiyawati, Feva Umi Aisyiyah Usrah, Cut Rizka Al Vina Pramayastri Wahiddin, Shafiyyah Widiyastuti, Sri Wisnu Yuwono Wulandari, Rizki Yeni Wuysang, Julia Magdalena Yaniza, Tiza Yanti Rosita Yeni Kurniawati Sumantri Yeni, Rahma Yesi Astri Yesi Astri Yona Desni Sagita Yona Desni Sagita, Yona Desni Yulianti, Katarina Yulinda Hervilia Yunita Anggriani Zaidi Bin Othman Zakir, Supratman Zariul Antosa Zawawi, Azlyn Ahmad Zilda, Malika ZULFAH Zulfah Zulfah