Article
Agricultural Engineering
Yashvir Singh, Abhishek Sharma, Nishant Kumar Singh
Summary: Supercritical methanol transesterification is an effective method for processing biodiesel, which can produce a substantial amount of biodiesel in a short period of time and solve the problems associated with catalyst processing. The study found that the reaction temperature, methanol to oil ratio, reaction time, and pressure have a significant impact on the biodiesel production in the supercritical methanol transesterification process.
BIOMASS & BIOENERGY
(2022)
Article
Chemistry, Physical
Mu Naushad, Tansir Ahamad, Mohammad Rizwan Khan
Summary: In this study, novel magnetic ionic liquid based nanocomposites were fabricated for the efficient production of biodiesel from palm oil. The results showed that [NiFe2O4@BMSI]HSO4 exhibited higher catalytic performance and reusability compared to NiFe2O4@BMSI]Br, making it a promising catalyst for transesterification reactions.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Ayoola Ayodeji, Chiekweta Gozirim, Agbede Cedar, Michael Oke, Babalola Philip
Summary: This research focuses on the transesterification of waste vegetable oil using calcined periwinkle shells and impregnated zinc oxide as catalysts. The results showed that calcined CaO catalyst obtained from periwinkle shells had a quality of 81.6%. The optimum biodiesel yield of 84.96% was achieved using the calcined CaO catalyst.
Article
Environmental Sciences
Hantoro Satriadi, Isdayana Yogi Pratiwi, Malikhatul Khuriyah, Widayat, Hadiyanto, Jedy Prameswari
Summary: The study aimed to develop a sustainable Ni/Zeolite catalyst derived from geothermal solid waste for waste cooking oil processing. By investigating the effects of catalyst concentration and operation temperature on transesterification process, the optimal conditions for biodiesel production from waste cooking oil were determined. Results showed that the synthesized Ni/Zeolite catalyst had granular shape, crystalline structure, increased surface area, and pore volume. Highest biodiesel yield was achieved at 3% w/w Ni/Zeolite catalyst addition and 60 degrees C operating temperature. The synthesized catalyst showed a decrease in biodiesel yield after three cycles of reuse.
Article
Chemistry, Applied
Hwi-Sung Lee, Jaeha Lee, Hanbin Seo, Hankyeul Kang, Do Heui Kim, Youn-Woo Lee
Summary: This study demonstrated the synthesis of biodiesel using Pd/ZSM-5 or commercial Pd/Al2O3 catalyst, with Pd/ZSM-5 showing a higher FAMEs yield of 97.1% compared to 58.0% for Pd/Al2O3 under the same conditions. Despite having higher Pd nanoparticles dispersion, Pd/ZSM-5 exhibited lower activity for CTH.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Zhijuan Wang, Huajing Zhou, Zilian Liu, Rongrong Miao, Liang He, Qingqing Guan
Summary: Producing biodiesel by transesterification of waste oils or fats with short-chain alcohol can alleviate energy and environmental issues, and reducing the cost of transesterification catalyst is crucial for enhancing biodiesel competitiveness. In this work, a novel calcium oxide-cancrinite based catalyst was prepared from a calcium-rich residue obtained through one-step pyrolysis of paper mill sludge. The hydrothermal condition of the sludge slightly affected the yield of fatty acid methyl ester, while the pyrolysis temperature significantly influenced the transesterification performance. Optimization of key process parameters achieved a yield of over 95% for fatty acid methyl ester.
Review
Engineering, Chemical
Montserrat Ceron Ferrusca, Rubi Romero, Sandra Luz Martinez, Armando Ramirez-Serrano, Reyna Natividad
Summary: This article reviews the classification of lipidic feedstocks and catalysts for biodiesel production. It discusses the pros and cons of different processes and feedstocks, with a focus on waste cooking oil (WCO) as a sustainable alternative. The article also explores advances in the study of bifunctional catalysts, which can simultaneously esterify free fatty acids (FFA) and triglycerides in WCO.
Article
Engineering, Environmental
Raheleh Talavari, Shokoufe Hosseini, G. R. Moradi
Summary: Renewable biofuels production helps alleviate concerns about the end of fossil fuels. Utilizing waste materials like travertine stone powder as a catalyst for biodiesel production demonstrates high efficiency and stability.
WASTE MANAGEMENT & RESEARCH
(2021)
Article
Energy & Fuels
Wenlu Zhang, Chunrong Wang, Beining Luo, Peihang He, Liang Li, Guoqiang Wu
Summary: Development of graphene carbon nitride supported molybdenum catalysts enables facile transesterification of waste cooking soybean oil into biodiesel with high conversion rate and selectivity. The 10%Mo/g-C3N4 catalyst exhibits the best catalytic performance. The experimental parameters and catalytic reusability of the catalyst are investigated, and the possible deactivation mechanism and regeneration method are proposed.
Article
Energy & Fuels
Mohamed Mokhatr Mohamed, Hossam El-Faramawy
Summary: A novel catalyst synthesized for biodiesel production showed high efficiency and quality. The optimal reaction conditions were identified and the mechanism of the catalytic reaction was investigated.
Article
Chemistry, Applied
Paula S. Mateos, Marisa B. Navas, Susana R. Morcelle, Claudia Ruscitti, Silvana R. Matkovic, Laura E. Briand
Summary: The study focused on investigating the biocatalytic performance of a lipase obtained from Araujia sericifera latex in hydrolysis and esterification reactions with sunflower waste cooking oil. The results showed that the lipase had high enzymatic activity in hydrolyzing and esterifying the oil, with over 90% conversion of free fatty acids achieved using short chain alcohols.
Article
Energy & Fuels
Olayomi Abiodun Falowo, Eriola Betiku
Summary: This study developed a new green heterogeneous alkali catalyst from cocoa, kola nut, and fluted pumpkin wastes for transesterification of yellow oleander-rubber seed oil blend. By optimizing catalyst concentration, temperature, and time, high yields of biodiesel were achieved, demonstrating the potential for sustainable and economic biodiesel production using agricultural waste materials.
Review
Engineering, Chemical
Violeta Makareviciene, Egle Sendzikiene
Summary: The noncatalytic supercritical process in biodiesel production simplifies the process, solves the problem of catalyst recovery and regeneration, and improves the efficiency of biodiesel production.
Article
Green & Sustainable Science & Technology
Emmanuelle Gomez-Trejo-Lopez, Maria Ortencia Gonzalez-Diaz, Manuel Aguilar-Vega
Summary: A route to produce biodiesel from waste cooking oil (WCO) using catalytic membranes made of sulfonated polyphenylsulfone (S-PPS) and blends of polyphenylsulfone (PPS) and sulfonated polyphenylsulfone (PPS:S-PPS) was tested. The catalytic membranes showed a good balance between ion exchange capacity, swelling degree, and weight loss after crosslinking. Among them, the dense crosslinked membrane PPS:S-PPS 56 (MD 3 C) with 56% sulfonation degree exhibited the best balance, achieving 86% biodiesel conversion in the transesterification reaction with WCO.
Article
Engineering, Chemical
Ayse Hilal Ulukardesler
Summary: The global energy demand is increasing and fossil fuels will eventually be depleted. Renewable biofuels, such as biodiesel, have the potential to meet the world's current energy demand. This study aims to optimize the biodiesel production process and reduce production cost by using waste cooking oil as a raw material.
Article
Energy & Fuels
Jeeban Poudel, Malesh Shah, Sujeeta Karki, Sea Cheon Oh
Article
Energy & Fuels
Jeeban Poudel, Sujeeta Karki, Nawaraj Sanjel, Malesh Shah, Sea Cheon Oh
Article
Chemistry, Multidisciplinary
Sujeeta Karki, Jeeban Poudel, Sea Cheon Oh
APPLIED SCIENCES-BASEL
(2017)
Article
Energy & Fuels
Jeeban Poudel, Sujeeta Karki, Sea Cheon Oh
Article
Chemistry, Multidisciplinary
Sujeeta Karki, Jeeban Poudel, Sea Cheon Oh
APPLIED SCIENCES-BASEL
(2018)
Article
Environmental Sciences
Joo Yeob Lee, Sujeeta Karki, Jeeban Poudel, Keun Won Lee, Sea Cheon Oh
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2019)
Article
Green & Sustainable Science & Technology
Jeeban Poudel, Ja Hyung Choi, Sea Cheon Oh
