Drop-in biofuels production from microalgae to hydrocarbons: Microalgal cultivation and harvesting, conversion pathways, economics and prospects for aviation

Martinez-Villarreal, Sergio; Breitenstein, Antoine; Nimmegeers, Philippe; Saura, Pablo Perez; Hai, Bingxin; Asomaning, Justice; Eslami, Ali Alizadeh; Billen, Pieter; Passel, Steven Van; Bressler, David C.; Debecker, Damien P.; Remacle, Claire; Richel, Aurore

doi:10.1016/j.biombioe.2022.106555

Cited by 24 publications

(6 citation statements)

References 312 publications

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“…The type of feedstock and operation conditions gives the effects on the conversion, product yield, and product distribution in biofuel production using this thermal reaction. Many types of feedstocks were subjected to thermal degradation at 300–500 °C or higher and at moderate pressure [ 55 , 56 , 57 ]. Table 1 lists the relevant works dealing with catalytic pyrolysis process, indicating the present feedstock, reaction condition, catalyst, reactor, and products.…”

Section: Catalysis In Catalytic Pyrolysis Of Triglyceride Feedstocksmentioning

confidence: 99%

Recent Advances of Triglyceride Catalytic Pyrolysis via Heterogenous Dolomite Catalyst for Upgrading Biofuel Quality: A Review

et al. 2023

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This review provides the recent advances in triglyceride catalytic pyrolysis using heterogeneous dolomite catalysts for upgrading biofuel quality. The production of high-quality renewable biofuels through catalytic cracking pyrolysis has gained significant attention due to their high hydrocarbon and volatile matter content. Unlike conventional applications that require high operational costs, long process times, hazardous material pollution, and enormous energy demand, catalytic cracking pyrolysis has overcome these challenges. The use of CaO, MgO, and activated dolomite catalysts has greatly improved the yield and quality of biofuel, reducing the acid value of bio-oil. Modifications of the activated dolomite surface through bifunctional acid–base properties also positively influenced bio-oil production and quality. Dolomite catalysts have been found to be effective in catalyzing the pyrolysis of triglycerides, which are a major component of vegetable oils and animal fats, to produce biofuels. Recent advances in the field include the use of modified dolomite catalysts to improve the activity and selectivity of the catalytic pyrolysis process. Moreover, there is also research enhancement of the synthesis and modification of dolomite catalysts in improving the performance of biofuel yield conversion. Interestingly, this synergy contribution has significantly improved the physicochemical properties of the catalysts such as the structure, surface area, porosity, stability, and bifunctional acid–base properties, which contribute to the catalytic reaction’s performance.

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Section: Catalysis In Catalytic Pyrolysis Of Triglyceride Feedstocksmentioning

confidence: 99%

Recent Advances of Triglyceride Catalytic Pyrolysis via Heterogenous Dolomite Catalyst for Upgrading Biofuel Quality: A Review

et al. 2023

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“…To reduce the environmental footprints of human activity, and in particular to curb CO 2 emissions, it is clear that the deployment of renewable energy and biofuels at a large scale is increasingly playing a pivotal role. − In this field, catalysis science drives the transition from fossil fuel-based technologies to bio-based ones. A particular focus is logically put on the valorization of second- and third-generation biomass, i.e., non-edible biomass streams such as lignocellulose, food waste such as cooking oils, or algal biomass. , …”

Section: Introductionmentioning

confidence: 99%

“…A particular focus is logically put on the valorization of second-and thirdgeneration biomass, i.e., non-edible biomass streams such as lignocellulose, food waste such as cooking oils, or algal biomass. 4,5 Among biofuels, biodiesel is a key candidate to promoting sustainability and circular economy. 6 It is biodegradable, is less toxic than petroleum-derived diesel, and does not require the application of a desulfurization step.…”

Section: ■ Introductionmentioning

confidence: 99%

Sodium Aluminate-Catalyzed Biodiesel Synthesis

Pampararo

Debecker

2023

ACS Sustainable Chem. Eng.

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Fatty acid methyl esters (FAME) were produced by transesterification of vegetable oil triglycerides, using a cheap, available, and strongly basic catalyst: NaAlO 2 (sodium aluminate). Characterization revealed that NaAlO 2 displays a high amount of strong basic sites, explaining its record activity compared with other common benchmark basic catalysts (calcined hydrotalcite, supported KI, and Ca and Sr oxides). Importantly, NaAlO 2 operates truly as a heterogeneous catalyst and does not leach in the reaction medium. It shows good recyclability and appears more convenient than conventionally used homogeneous NaOH to treat vegetable oil, even in the presence of some free fatty acids.

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“…Microalgae are potentially biomass sources for producing third‐generation biofuels due to their ability to convert solar energy through photosynthesis, capture CO 2 , and store this carbon in energy‐rich compounds such as lipids [1,2] . These microorganisms have high‐speed growth rates, resulting in high productivity [3] …”

Section: Introductionmentioning

confidence: 99%

“…[1,2] These microorganisms have high-speed growth rates, resulting in high productivity. [3] Hydrothermal liquefaction (HTL) is a thermochemical process that allows the conversion of wet biomass such as microalgae, avoiding a costly drying step. [4,5] The lipids are hydrolyzed, forming carboxylic acids that can be further converted into drop-in fuels for diesel and jet fuel.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Hydrotreatment of Algal HTL Bio‐Oil over Phosphide, Nitride, and Sulfide Catalysts

et al. 2023

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Global energy demand and environmental concerns about limiting CO 2 emissions have been growing recently. This is why fuel production from renewable resources has become a priority. In this context, microalgae represent an attractive alternative carbon source. In this work, different supported catalysts, including metal phosphide, nitride, and sulfide, were tested for the hydroconversion of bio-oil issued from the hydrothermal liquefaction of microalgae. Supported Ni phosphide catalysts promoted the decarboxylation and decar-bonylation route, while NiMo nitride promoted the hydrodeoxygenation pathway. NiW sulfide catalysts were the most performant, producing a hydrotreated oil with the best higher heating value (HHV), lower aromaticity degree, and lower average molar mass. Among sulfide catalysts, NiWS/SiO 2 À Al 2 O 3 was the least active, probably due to the inhibition of acid sites by the nitrogen compounds. However, NiWS/Al 2 O 3 performed better, showing high hydrogenation performances, which contributed to the conversion of refractory compounds.

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Drop-in biofuels production from microalgae to hydrocarbons: Microalgal cultivation and harvesting, conversion pathways, economics and prospects for aviation

Cited by 24 publications

References 312 publications

Recent Advances of Triglyceride Catalytic Pyrolysis via Heterogenous Dolomite Catalyst for Upgrading Biofuel Quality: A Review

Recent Advances of Triglyceride Catalytic Pyrolysis via Heterogenous Dolomite Catalyst for Upgrading Biofuel Quality: A Review

Sodium Aluminate-Catalyzed Biodiesel Synthesis

Catalytic Hydrotreatment of Algal HTL Bio‐Oil over Phosphide, Nitride, and Sulfide Catalysts

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