Diesel oil-like hydrocarbon production from vegetable oil in a single process over Pt–Ni/Al2O3 and Pd/C combined catalysts

2016 ◽  
Vol 148 ◽  
pp. 110-116 ◽  
Author(s):  
M.V. Domínguez-Barroso ◽  
C. Herrera ◽  
M.A. Larrubia ◽  
L.J. Alemany
Keyword(s):  
Vegetable Oil ◽  
Diesel Oil ◽  
Hydrocarbon Production ◽  
Single Process ◽  
Combined Catalysts

Exhaust emissions from liquid fuel micro gas turbine fed with diesel oil, biodiesel and vegetable oil

2013 ◽  
Vol 101 ◽  
pp. 349-356 ◽  
Author(s):  
David Chiaramonti ◽  
Andrea Maria Rizzo ◽  
Adriano Spadi ◽  
Matteo Prussi ◽  
Giovanni Riccio ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Vegetable Oil ◽  
Liquid Fuel ◽  
Exhaust Emissions ◽  
Diesel Oil ◽  
Micro Gas Turbine

A Study on Reasonable Ratios of Vegetable Oils and Diesel Oil in Mixed Fuel Used as an Alternative Fuel for Marine Diesel Engines in Vietnam

2019 ◽  
Vol 889 ◽  
pp. 244-253
Author(s):  
The Nam Tran ◽  
Van Uy Dang ◽  
Dai An Nguyen
Keyword(s):  
Diesel Engine ◽  
Vegetable Oil ◽  
Fuel Mixture ◽  
High Viscosity ◽  
Diesel Oil ◽  
Negative Effects ◽  
Injection Process ◽  
Straight Vegetable Oil ◽  
Marine Engines ◽  
Marine Diesel

Vegetable oil is used directly as a fuel, in either modified or unmodified equipment, it is referred to as straight vegetable oil (SVO). SVOs have some advantages in comparison with fossil fuel oils such as: renewability, local availability, lower sulfur content, etc. avoiding the environmental effects caused by sulfuric acid, lower aromatic content and high biodegradability. However, SVOs are also attached to several disadvantages such as: high viscosity, low heating value, high fatty contents, influencing on injection process and causing engine coking if misused. In order to prevent such negative effects of diesel engine fuelled by SVO, one of potential solutions is using blends of SVO with diesel oil (DO). In such case, the reasonable ratio of SVO and diesel oil plays a very important role for normal running condition, but also seems to be challenge to identify. The article shows results of a study on defining the ratio for marine diesel application. It is firstly based on the assessment on the heat release processes inside the diesel engine cylinder upon a specific simulation with different blends of SVO and diesel oil. In comparison with the particular requirements for fuel of marine engines, the preferable percentage of vegetable oil in the fuel mixture is pointed out. And finally, the experiments with fuel system of a typical marine diesel engine, HANSHIN 6LU32, installed at the lab of Vietnam Maritime University in terms of checking real engine’s operation and reducing harmful emissions.

Physicochemical and sorption characteristics of poplar seed fiber as a natural oil sorbent

2019 ◽  
Vol 89 (19-20) ◽  
pp. 4186-4194 ◽  
Author(s):  
Yanfang Xu ◽  
Qincheng Su ◽  
Hua Shen ◽  
Guangbiao Xu
Keyword(s):  
Sorption Capacity ◽  
Vegetable Oil ◽  
Packing Density ◽  
Plant Biomass ◽  
Diesel Oil ◽  
Motor Oil ◽  
Fiber Assembly ◽  
Oil Sorption ◽  
Oil Sorbent ◽  
Sorption Characteristics

Oil spills have become a global concern due to their environmental and economic impact. Various methods, including the use of fibers as sorbents, have been developed for oil spill concern. Poplar seed fiber is a plant biomass that has the potential of being used as low-cost sorbent. In this study, the physicochemical and sorption characteristics of poplar seed fiber as an oil sorbent was evaluated. Fourier transform infrared and scanning electron microscopy analyses showed that poplar seed fiber was a lignocellulosic material with smooth surface and hollow lumen. Oil sorption tests showed that loose poplar seed fibers could absorb 53.74 g/g of diesel oil, 65.85 g/g of motor oil and 67.97 g/g of vegetable oil, which were higher than that of kapok and cotton fiber. The availability of void fraction inside the fiber assembly coupled with hollow fiber structure and hydrophobicity/oleophilicity of poplar seed fiber were the main contributing factors. Moreover, the oil sorption kinetics of poplar seed fiber, including the effect of packing density of fiber assembly, oil types on sorption capacity and rate, was analyzed by a wicking method. Results illustrated that the oil sorption capacity was closely related to the packing density of fiber assembly, with an apparent decrease when the packing density changed from 0.05 g/cm3 to 0.09 g/cm3. For sorption rate, the highest oil sorption coefficients were observed for diesel oil, of 0.36 g2/s, 0.32 g2/s and 0.30 g2/s at the packing densities of 0.05 g/cm3, 0.07 g/cm3 and 0.09 g/cm3, respectively, which were about 10 times higher than that of vegetable oil and 70 times higher than that of motor oil.

scholarly journals Optimalisasi Sistem Mikrogrid Hibrida Berbasis Jarak Pagar menggunakan HOMER

2019 ◽  
Vol 7 (2) ◽  
pp. 268
Author(s):  
IBRAHIM IBRAHIM ◽  
DANI RUSIRAWAN
Keyword(s):  
Vegetable Oil ◽  
Natural Resource ◽  
Secondary Data ◽  
Diesel Oil ◽  
Optimal Conditions ◽  
Diesel Generator ◽  
Hybrid Microgrid ◽  
Straight Vegetable Oil ◽  
Cost Of Energy ◽  
Synthetic Gas

ABSTRAKPenggunaan genset diesel minyak solar untuk kelistrikan di pulau Medang terkendala dengan mahal dan tingginya biaya pengadaan minyak solar. Biomassa jarak pagar yang ada di pulau Medang potensial untuk dimanfaatkan sebagai sumber daya alam (SDA) lokal, untuk menggantikan minyak solar sebagai bahan bakar genset. Bahan bakar yang dapat dihasilkan dari buah jarak pagar terdiri dari straight vegetable oil (SVO), biogas dan synthetic gas (syngas). Berdasarkan data sekunder, 1 ha kebun jarak pagar dapat menghasilkan listrik 19.425 kWh/tahun menggunakan genset diesel berbahan bakar SVO ditambah 6.475 kWh/tahun menggunakan genset biogas. Dalam penelitian ini, optimalisasi sistem mikrogrid hibrida berbasis jarak pagar sudah dilakukan. Kondisi optimal untuk beban rata-rata 4.000 kWh/hari terdiri dari 1X360 kW genset SVO + 1X360 kW genset Biogas + Baterai 300 kWh + inverter-rectifier 300 kW. Hasil evaluasi memperlihatkan untuk operasi 25 tahun, sistem mikrogrid hibrida berbasis biomassa jarak pagar membutuhkan net present cost (NPC) sebesar $7.750.000 dan memberikan cost of energy (COE) $0,368/kWh.Kata kunci: genset, bioenergi, SVO, biogas, listrik ABSTRACTUtilization of diesel oil for diesel generators in the Medang island is constrained by high costs of diesel oil. The jatropha (type of biomass) in the Medang island can be used as a local natural resource (SDA), in substituting of diesel oil as a generator fuel. The type of fuel whics is produced by jatropha consist of straight vegatable oil (SVO), biogas and synthetic gas (syngas). Based on secondary data, it is found that 1 ha of Jatropha equal by produces electricity 19.425 kWh/year using an SVO diesel generator set and 6.475 kWh/year using biogas generator set. In this study, optimization of the hybrid microgrid system was carried out. The optimal conditions for an average 4,000 kWh/day of load is consisting of 1X360 kW SVO generator + 1X360 kW Biogas generator + 300 kWh + 300 kW rectifier inverter. Evaluation results showed that for 25-year operation, the hybrid microgrid jatophra bases system requires of NPC of $ 7,750,000 and yield the COE of $ 0.368/kWh.Keywords: genset, bioenergy, SVO, biogas, electricity

scholarly journals Zn-Mo/HZSM-5 Catalyst for Gasoil Range Hydrocarbon Production by Catalytic Hydrocracking of Ceiba pentandra oil

2018 ◽  
Vol 13 (1) ◽  
pp. 136 ◽  
Author(s):  
Yustia Wulandari Mirzayanti ◽  
Firman Kurniawansyah ◽  
Danawati Hari Prayitno ◽  
Achmad Roesyadi
Keyword(s):  
Vegetable Oil ◽  
Batch Reactor ◽  
Liquid Hydrocarbon ◽  
Incipient Wetness Impregnation ◽  
Impregnation Method ◽  
Gas Oil ◽  
Transportation Fuel ◽  
Hydrocarbon Production ◽  
Ceiba Pentandra ◽  
Metal Ratio

Biofuel from vegetable oil becomes one of the most suitable and logical alternatives to replace fossil fuel. The research focused on various metal ratio Zinc/Molybdenum/HZSM-5 (Zn-Mo/HZSM-5) catalyst to produce liquid hydrocarbon via catalytic hydrocracking of Ceiba penandra oil. The catalytic hydrocracking process has been applied in this study to crack Ceiba pentandra oil into a gasoil range hydrocarbon using Zn-Mo/HZSM-5 as a catalyst. The effect of various reaction temperature on the catalytic hydrocracking of Ceiba pentandra oil were studied. The Zn-Mo/HZSM-5 catalyst with metal ratio was prepared by incipient wetness impregnation method. This process used slurry pressure batch reactor with a mechanical stirrer. A series of experiments were carried out in the temperature range from 300-400 oC for 2 h at pressure between 10-15 bar. The conversion and selectivity were estimated. The liquid hydrocarbon product were identified to gasoline, kerosene, and gas oil. The results show that the use of Zn-Mo/HZSM-5 can produce gas oil as the most component in the product. Overall, the highest conversion and selectivity of gas oil range hydrocarbon was obtained when the ZnMo/HZSM-5 metal ratio was Zn(2.86 wt.%)-Mo(5.32 wt.%)/HZSM-5 and the name is Zn-Mo/HZSM-5_102. The highest conversion was obtained at 63.31 % and n-paraffin (gas oil range) selectivity was obtained at 90.75 % at a temperature of 400 oC. Ceiba pentandra oil can be recommended as the source of inedible vegetable oil to produce gasoil as an environmentally friendly transportation fuel. Copyright © 2018 BCREC Group. All rights reservedReceived: 8th September 2017; Revised: 9th September 2017; Accepted: 17th September 2017; Available online: 22nd January 2018; Published regularly: 2nd April 2018How to Cite: Mirzayanti, Y.W., Kurniawansyah, F., Prajitno, D.H., Roesyadi, A. (2018). Zn-Mo/HZSM-5 Catalyst for Gasoil Range Hydrocarbon Production by Catalytic Hydrocracking of Ceiba pentandra oil. Bulletin of Chemical Reaction Engineering & Catalysis, 13 (1): 136-143 (doi:10.9767/bcrec.13.1.1354.136-143) 

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