scholarly journals Hydroconversion of Waste Cooking Oil into Bio-Jet Fuel over NiMo/SBUY-MCM-41

Catalysts ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 466 ◽  
Author(s):  
Zongwei Zhang ◽  
Qingfa Wang ◽  
Xiangwen Zhang
Keyword(s):  
Hierarchical Structure ◽  
Active Sites ◽  
Hydrocarbon Fuel ◽  
Waste Cooking Oil ◽  
Jet Fuel ◽  
Cooking Oil ◽  
New Strategy ◽  
Cyclic Compounds ◽  
Alternative Jet Fuel ◽  
Mcm 41

A hierarchical SBUY-MCM-41 catalyst was prepared by sacrificing USY (a microporous molecular sieve) to synthesize the MCM-41 zeolite via a hydrothermal method. The hydroconversion of waste cooking oil into hydrocarbon fuel over a NiMo/SBUY-MCM-41 catalyst was investigated. The micropores of the Y building units were inherited by the SBUY-MCM-41 zeolite, in which a special hierarchical structure was formed and the accessibility of reactants to the micropore active sites was improved. The hierarchical SBUY-MCM-41 showed high acidity and hydrothermal stability. Compared with mesoporous Al-MCM-41 and microporous USY zeolites, the SBUY-MCM-41-supported NiMo catalyst significantly enhanced the selective cracking of waste cooking oil for the production of jet-fuel-range hydrocarbons (37.3%), with the highest selectivity for the formation of C10–C14 hydrocarbons and a satisfactory selectivity for the formation of jet-fuel-range aromatics (7.6%), as well as a few cyclic compounds. The improved selectivity is the result of the special hierarchical structure and acid distribution of SBUY-MCM-41. This work provides a new strategy to synthesize a hierarchical catalyst for producing alternative jet fuel from waste cooking oil and vegetable oils.

Hydroconversion of Waste Cooking Oil into Bio-Jet Fuel over a Hierarchical NiMo/USY@Al-SBA-15 Zeolite

2018 ◽  
Vol 41 (3) ◽  
pp. 590-597 ◽  
Author(s):  
Zongwei Zhang ◽  
Qingfa Wang ◽  
Hao Chen ◽  
Xiangwen Zhang
Keyword(s):  
Waste Cooking Oil ◽  
Jet Fuel ◽  
Cooking Oil

scholarly journals Bio-aviation fuel via catalytic hydrocracking of waste cooking oils

2020 ◽  
Vol 44 (1) ◽  
Author(s):  
R. El-Araby ◽  
E. Abdelkader ◽  
G. El Diwani ◽  
S. I. Hawash
Keyword(s):  
Catalytic Cracking ◽  
Freezing Point ◽  
Batch Reactor ◽  
Waste Cooking Oil ◽  
Jet Fuel ◽  
Raw Material ◽  
Aviation Fuel ◽  
Reaction Conditions ◽  
Oil Companies ◽  
Cooking Oil

Abstract Background Biomass fuels (bio-jet fuel) have recently attracted considerable attention as alternatives to conventional jet fuel. They have become the focus of aircraft manufacturers, engines, oil companies, governments and researchers alike. This study is concerned with the production of biojet fuel using waste cooking oil (WCO). Batch reactor is used for running the experimental study. The catalytic cracking products are investigated by GC mass spectra. Final products from different reaction conditions are subjected to fractional distillation. The (Bio kerosene) fraction was compared with the conventional jet A-1 and showed that it met the basic jet fuel specifications. Optimum reaction conditions are obtained at (450 °C), pressure of (120 bars), catalyst dose (2.5% w/v), reaction time (60 min) and hydrogen pressure 4 atmosphere. The aim of this study is to produce bio aviation fuel according to specifications and with a low freezing point from waste cooking oil in one step using a laboratory prepared catalyst and with a low percentage of hydrogen to complete the process of cracking and deoxygenation in one reactor, which is naturally reflected positively on the price of the final product of bio aviation fuel. Results The results indicated that the product obtained from WCO shows promising potential bio aviation fuels, having a low freezing point (− 55 °C) and that all bio kerosene’s specifications obtained at these conditions follow the international standard specifications of aviation turbine fuel. Conclusion Biojet fuel obtained from WCO has fairly acceptable physico-chemical properties compared to those of petroleum-based fuel. Adjustment of the hydro catalytic cracking reaction conditions was used to control quantities and characteristics of produced bio aviation fuel. Taking into consideration the economic evaluation WCO is preferable as raw material for bio aviation fuel production due to its low cost and its contribution in environmental pollution abatement. Blend of 5% bio aviation with jet A-1 (by volume) can be used in the engine without any modifications and a successful test of blended aviation fuel with 10% bio aviation has been achieved on Jet-Cat 80/120 engine.

scholarly journals Green Biofuel Production via Catalytic Pyrolysis of Waste Cooking Oil using Malaysian Dolomite Catalyst

2018 ◽  
Vol 13 (3) ◽  
pp. 489 ◽  
Author(s):  
Raja Mohamad Hafriz Raja Shahruzzaman ◽  
Salmiaton Ali ◽  
Robiah Yunus ◽  
Taufiq Yap Yun-Hin
Keyword(s):  
Catalytic Pyrolysis ◽  
Liquid Product ◽  
High Capacity ◽  
Acid Value ◽  
Hydrocarbon Fuel ◽  
Waste Cooking Oil ◽  
Biofuel Production ◽  
Oxygen Compound ◽  
Fuel Gas ◽  
Cooking Oil

Malaysian Dolomite has shown potential deoxygenation catalyst due to high capacity in removing oxygen compound and produce high quality of biofuel with desirable lighter hydrocarbon (C8-C24). The performance of this catalyst was compared with several commercial catalysts in catalytic pyrolysis of Waste Cooking Oil. Calcination at 900 °C in N2 produced catalyst with very high activity due to decomposition of CaMg(CO3)2 phase and formation of MgO-CaO phase. The liquid product showed similar chemical composition of biofuel in the range of gasoline, kerosene and diesel fuel. Furthermore, Malaysian Dolomite showed high reactivity with 76.51 % in total liquid hydrocarbon and the ability to convert the oxygenated compounds into CO2, CO, CH4, H2, hydrocarbon fuel gas, and H2O. Moreover, low acid value (33 mg KOH/g) and low aromatic hydrocarbon content were obtained in the biofuel. Thus, local calcined carbonated material has a potential to act as catalyst in converting waste cooking oil into biofuel. Copyright © 2018 BCREC Group. All rights reservedReceived: 13rd December 2017; Revised: 11st June 2018; Accepted: 3rd July 2018How to Cite: Hafriz, R.S.R.M., Salmiaton, A., Yunus, R., Taufiq-Yap, Y.H. (2018). Green Biofuel Production via Catalytic Pyrolysis of Waste Cooking Oil using Malaysian Dolomite Catalyst. Bulletin of Chemical Reaction Engineering & Catalysis, 13 (3): 489-501 (doi:10.9767/bcrec.13.3.1956.489-501)Permalink/DOI: https://doi.org/10.9767/bcrec.13.3.1956.489-501 

scholarly journals Transesterification of Used Cooking Oil Using CaO/MCM-41 Catalyst Synthesized from Lapindo Mud by Sonochemical Method

2017 ◽  
Vol 17 (3) ◽  
pp. 509 ◽  
Author(s):  
Ida Bagus Putra Mahardika ◽  
Wega Trisunaryanti ◽  
Triyono Triyono ◽  
Dwi Putra Wijaya ◽  
Kumala Dewi
Keyword(s):  
Weight Ratio ◽  
Xrd Analysis ◽  
Waste Cooking Oil ◽  
Sonochemical Method ◽  
Impregnation Method ◽  
Cooking Oil ◽  
Used Cooking Oil ◽  
Hexagonal Shape ◽  
Infrared Spectrophotometer ◽  
Mcm 41

Transesterification of waste cooking oil using CaO/MCM-41 synthesized from Lapindo mud by the sonochemical method has been carried out. The silica was separated from the mud by reflux method used 6 M HCl and 6 M NaOH. The silica was then analyzed by XRF and used as silica source in MCM-41 synthesis. The synthesis of MCM-41 was carried out by the sonochemical method, then analyzed by XRD, Infrared spectrophotometer, SAA, and TEM. The Ca2+ was loaded onto the MCM-41 by wet impregnation method under variation of the Ca2+ content of 1.15, 1.29, 2.39, and 3.25 wt.% analyzed by ICP produced CaO(1), CaO(2), CaO(3), and CaO(4)/MCM-41 catalyst respectively. Transesterification of used cooking oil was carried out under methanol/oil mole ratio of 15/1, the temperature of 55, 65 and 75 °C, and catalyst/oil weight ratio of 5/100, 10/100 and 15/100 for 2 h by reflux method. The XRD analysis of the MCM-41 showed a characteristic peak at 2θ = 2-5°. The MCM-41 has a specific surface area of 1290 m2/g and pore diameter of 3.4 nm. The TEM images of MCM-41 showed ordered pore distribution with a hexagonal shape. The highest conversion of methyl ester was 78.17 wt.% obtained under the reaction conditions at 65 °C and catalyst/oil weight ratio of 15/100 using the CaO(4)/MCM-41. The lifetime CaO(4)/MCM-41 catalyst was 9.8 h.

Sign in / Sign up

Export Citation Format

Share Document