Deoxygenation of non-edible fatty acid for green diesel production: Effect of metal loading amount over Ni/MgO–Al2O3 on the catalytic performance and reaction pathway

Fuel ◽  
2021 ◽  
pp. 122488
Author(s):  
Kyung-Won Jeon ◽  
Ho-Ryong Park ◽  
Yeol-Lim Lee ◽  
Jee-Eun Kim ◽  
Won-Jun Jang ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Reaction Pathway ◽  
Catalytic Performance ◽  
Green Diesel ◽  
Metal Loading ◽  
Production Effect ◽  
Loading Amount ◽  
Diesel Production

The effect of metal loading over Ni/γ-Al2O3 and Mo/γ-Al2O3 catalysts on reaction routes of hydrodeoxygenation of rubber seed oil for green diesel production

2020 ◽  
Vol 355 ◽  
pp. 51-64 ◽  
Author(s):  
Mariam Ameen ◽  
Mohammad Tazli Azizan ◽  
Anita Ramli ◽  
Suzana Yusup ◽  
Bawadi Abdullah
Keyword(s):  
Seed Oil ◽  
Rubber Seed Oil ◽  
Green Diesel ◽  
Rubber Seed ◽  
Metal Loading ◽  
Diesel Production ◽  
Reaction Routes

Review of green diesel production from fatty acid deoxygenation over Ni-based catalysts

2021 ◽  
pp. 111696
Author(s):  
Nitchakul Hongloi ◽  
Paweena Prapainainar ◽  
Chaiwat Prapainainar
Keyword(s):  
Fatty Acid ◽  
Green Diesel ◽  
Diesel Production

Catalytic deoxygenation by H2-free single-step conversion of free fatty acid feedstock over a Co-Ag carbon-based catalyst for green diesel production

2021 ◽  
pp. 105334
Author(s):  
M. Safa-Gamal ◽  
N. Asikin-Mijan ◽  
Mahashanon Arumugam ◽  
Wan Nor Adira Wan Khalit ◽  
Nur Azreena ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Single Step ◽  
Green Diesel ◽  
Catalytic Deoxygenation ◽  
Diesel Production ◽  
Carbon Based

Catalytic Resonance Theory: Parallel Reaction Pathway Control

2019 ◽  
Author(s):  
M. Alexander Ardagh ◽  
Manish Shetty ◽  
Anatoliy Kuznetsov ◽  
Qi Zhang ◽  
Phillip Christopher ◽  
...  
Keyword(s):  
Chemical Reactions ◽  
Active Site ◽  
Active Sites ◽  
Reaction Pathway ◽  
Control Strategies ◽  
Oscillation Amplitude ◽  
Catalytic Performance ◽  
Parallel Reaction ◽  
Resonance Theory ◽  
Static Conditions

Catalytic enhancement of chemical reactions via heterogeneous materials occurs through stabilization of transition states at designed active sites, but dramatically greater rate acceleration on that same active site is achieved when the surface intermediates oscillate in binding energy. The applied oscillation amplitude and frequency can accelerate reactions orders of magnitude above the catalytic rates of static systems, provided the active site dynamics are tuned to the natural frequencies of the surface chemistry. In this work, differences in the characteristics of parallel reactions are exploited via selective application of active site dynamics (0 < ΔU < 1.0 eV amplitude, 10<sup>-6</sup> < f < 10<sup>4</sup> Hz frequency) to control the extent of competing reactions occurring on the shared catalytic surface. Simulation of multiple parallel reaction systems with broad range of variation in chemical parameters revealed that parallel chemistries are highly tunable in selectivity between either pure product, even when specific products are not selectively produced under static conditions. Two mechanisms leading to dynamic selectivity control were identified: (i) surface thermodynamic control of one product species under strong binding conditions, or (ii) catalytic resonance of the kinetics of one reaction over the other. These dynamic parallel pathway control strategies applied to a host of chemical conditions indicate significant potential for improving the catalytic performance of many important industrial chemical reactions beyond their existing static performance.

Catalytic Deoxygenation of Palm Oil and its Residue in Green Diesel Production: a Current Technological Review

2021 ◽  
Author(s):  
Hilman Ibnu Mahdi ◽  
Alireza Bazargan ◽  
Gordon McKay ◽  
Nur Izyan Wan Azelee ◽  
Lucas Meili
Keyword(s):  
Palm Oil ◽  
Green Diesel ◽  
Catalytic Deoxygenation ◽  
A Current ◽  
Diesel Production

scholarly journals A Robust Two-Step Process for the Efficient Conversion of Acidic Soybean Oil for Biodiesel Production

Catalysts ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 527 ◽  
Author(s):  
Gaojian Ma ◽  
Lingmei Dai ◽  
Dehua Liu ◽  
Wei Du
Keyword(s):  
Fatty Acid ◽  
Soybean Oil ◽  
Lower Cost ◽  
Immobilized Lipase ◽  
Acid Methyl Ester ◽  
Acid Value ◽  
Catalytic Performance ◽  
Raw Material ◽  
Biodiesel Production ◽  
Negative Effect

Acidic oil, which is easily obtained and with lower cost, is a potential raw material for biodiesel production. Apart from containing large quantity of FFAs (free fatty acids), acidic oil usually contains some amount of inorganic acid, glycerides and some other complex components, leading to complicated effect on lipase’s catalytic performance. Exploring the efficient process of converting acidic oil for biodiesel production is of great significance to promote the use of acidic oil. A two-step conversion process for acidic soybean oil was proposed in this paper, where sulfuric acid-mediated hydrolysis was adopted first, then the hydrolyzed free fatty acid, collected from the upper oil layer was further subject to the second-step esterification catalyzed by immobilized lipase Novozym435. Through this novel process, the negative effect caused by harmful impurities and by-product glycerol on lipase was eliminated. A fatty acid methyl ester (FAME) yield of 95% could be obtained with the acid value decreased to 4 mgKOH/g from 188 mgKOH/g. There was no obvious loss in lipase’s activity and a FAME yield of 90% could be maintained with the lipase being repeatedly used for 10 batches. This process was found to have a good applicability to different acidic oils, indicating it has great prospect for converting low quality oil sources for biodiesel preparation.

Potential of Oleaginous Microorganisms in Green Diesel Production

2018 ◽  
pp. 251-270
Author(s):  
R. Selvaraj ◽  
I. Ganesh Moorthy ◽  
V. Sivasubramanian ◽  
R. Vinoth Kumar ◽  
R. Shyam Kumar
Keyword(s):  
Green Diesel ◽  
Oleaginous Microorganisms ◽  
Diesel Production
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