Catalytic deoxygenation of castor oil over Pd/C for the production of cost effective biofuel

Meller, Elad; Green, Uri; Aizenshtat, Zeev; Sasson, Yoel

doi:10.1016/j.fuel.2014.04.094

Cited by 67 publications

(37 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In an earlier study, the same research group conducted HDO of castor oil FAMEs in a batch reactor over a Pd/C catalyst, at 2.5 MPa, 340 °C, and 6 h reaction time, using n ‐hexane under supercritical conditions. The product was composed of 87 wt % n ‐heptadecane and 9 wt % n ‐octadecane with a yield higher than 95 % . They further reported that the hydrodecarbonylation (deCO) reaction was the main reaction pathway with methyl stearate and stearic acid as the main intermediate products.…”

Section: Introductionmentioning

confidence: 99%

Hydrotreating Model Comparison of Raw Castor Oil and its Methyl Esters for Biofuel Production

et al. 2018

View full text Add to dashboard Cite

Some of the main problems during vegetable oil hydrotreating are the high heat of reaction released, the huge quantity of expensive hydrogen required, and the high corrosion rates in the equipment. Some insights into the advantages and disadvantages of processing raw vegetable oils or their respective fatty acid methyl esters are given. The ASPEN Plus process simulator was used for the simulation of a hydrotreating process, with two different feedstocks coming from the same plant: raw castor oil and castor oil methyl esters. That process was modeled with two stoichiometric reactors in series. The technical viability of using methyl esters as hydrotreating feedstock for the production of biofuels such as green gasoline and diesel is demonstrated.

show abstract

Section: Introductionmentioning

confidence: 99%

Hydrotreating Model Comparison of Raw Castor Oil and its Methyl Esters for Biofuel Production

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Hence, reduction of of oxygenated compound is a key factor in improving fuel stability. Numerous technologies for hydrocarbon biofuel production have been developed such as hydrodeoxygenation [7][8][9] and deoxygenation process [10][11][12]. Hydrodeoxygenation (HDO) is a hydrogenolysis reaction to remove oxygen from oxygneated compounds (ester and carbonyl groups) with the presence of H 2 gas and resulting in by-product (H 2 O) formation.…”

Section: Introductionmentioning

confidence: 99%

Pyrolytic–deoxygenation of triglyceride via natural waste shell derived Ca(OH) 2 nanocatalyst

Asikin-Mijan

Lee

Taufiq‐Yap

et al. 2016

Journal of Analytical and Applied Pyrolysis

View full text Add to dashboard Cite

Graphical Abstact BIOFUELCO,CO2,H2O Removal Deoxygenation C 8 -C 17 Kerosene Triolein Diesel Clamshell derived Ca(OH) 2 nanocatalyst 2 Highlights  Ultrasonic assisted surfactant treatment of waste shell able to produce Ca(OH) 2 nanoparticles. Nano-Ca(OH) 2 catalyst render high basicity and surface area with large porosity distribution. Surfactant treated Ca(OH) 2 catalysts focus mainly in decarboxylation and decarbonylation. High selectivity of alkane and alkene in chain length of n17 produced via nano-Ca(OH) 2 catalyst. Significant reduction of O/C ratio for deoxygenized product as compared to O/C ratio of triolein. AbstractCracking-Deoxygenation process is one of the important reaction pathways for the production of biofuel with desirable n-C 17 hydrocarbon chain via removal of oxygen compounds. Calcium-based catalyst has attracted much attention in deoxygenation process due its relatively high capacity in removing oxygenated compounds in the form of CO 2 and CO under decarboxylation and decarbonylation reaction, respectively. In the present study, deoxygenation of triolein was investigated using Ca(OH) 2 nanocatalyst derived from low cost natural waste shells. The Ca(OH) 2 nanocatalyst was prepared via integration techniques between surfactant treatment (anionic and non-ionic) and wet sonochemical effect. Results showed that sonochemically assisted surfactant treatment has successfully enhanced the physicochemical properties of Ca(OH) 2 nanocatalyst in terms of nano-particle sizes (~50 nm), high surface area (~130 m 2 g -1 ), large porosity (~18.6 nm) and strong basic strength. The presence of superior properties from surfactant treated Ca(OH) 2 nanocatalysts rendered high deoxygenation degree, which are capable of producing high alkane and alkene selectivity in chain length of n-C 17 (high value of C 17 /(n-C 17 +n-C 18 ) ratio= 0.88). Furthermore, both Ca(OH) 2 -3 EG and Ca(OH) 2 -CTAB nanocatalysts showed high reactivity with 47.37% and 44.50%, respectively in total liquid hydrocarbon content of triolein conversion with high H/C and low O/C ratio.

show abstract

“…Analysis of the liquid fraction revealed a series of n-alkanes, alkenes, and fatty acids (Asomaning et al, 2014a). Noble metal-catalyzed deoxygenation of fatty acid methyl esters was also developed to improve the selectivity of carbon distribution (Meller et al, 2014;Santillan-Jimenez et al, 2014). Additionally, the mixture of biomass and plant oil was used in co-deoxy-liquefaction (Chen et al, 2011), and the results showed that the co-deoxy-liquefaction of soybean stalk and sunflower oil (4.4:1) could greatly increase the content of alkanes and decreased the content of phenols, leading to an increased HHV of the resultant oil in comparison with the product of the deoxy-liquefaction of biomass alone.…”

Section: Introductionmentioning

confidence: 99%

Synergetic deoxy reforming of cellulose and fatty acid esters for liquid hydrocarbon-rich oils

Wang

Sui

et al. 2015

Bioresource Technology

View full text Add to dashboard Cite

Catalytic deoxygenation of castor oil over Pd/C for the production of cost effective biofuel

Cited by 67 publications

References 21 publications

Hydrotreating Model Comparison of Raw Castor Oil and its Methyl Esters for Biofuel Production

Hydrotreating Model Comparison of Raw Castor Oil and its Methyl Esters for Biofuel Production

Pyrolytic–deoxygenation of triglyceride via natural waste shell derived Ca(OH) 2 nanocatalyst

Synergetic deoxy reforming of cellulose and fatty acid esters for liquid hydrocarbon-rich oils

Contact Info

Product

Resources

About