Evaluation of the separation of saturated fatty acid methyl esters obtained from additive winterization using a nonionic surfactant

Abe, Masahiro; Komatsu, Hiroyuki; Yamagiwa, Kazuaki; Tajima, Hideo

doi:10.1016/j.fuel.2017.11.066

Cited by 5 publications

(6 citation statements)

References 21 publications

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“…The limit imposed for CFPP of biodiesel depends on the regional climate. The microalgae-based biodiesel produced in this study can be used in cold climates by improving the biodiesel's cold performance through i) mixing with petroleum diesel in the appropriate proportion, ii) transesterification with a branchedchain alcohol, iii) the winterisation process, iv) utilisation of chemical additives, and v) alteration of the FAME profiles of biodiesel [33]. Therefore, these research findings could be applied to develop an efficient microalgae cultivation strategy for high biofuel feedstock generation.…”

Section: Fame Profilementioning

confidence: 86%

OPTIMISATION OF BIOMASS, LIPID AND CARBOHYDRATE PRODUCTIVITIES IN Chlorella vulgaris FOR BIOFUEL PRODUCTION

et al. 2022

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Synthesis of lipid and carbohydrate in microalgae simultaneously is essential for cost-effective microalgae-based biofuel production. Statistical optimisation approaches of the Plackett–Burman design (PBD) and central composite design (CCD) were applied to optimise the biomass, lipid, and carbohydrate productivities of the C. vulgaris UPSI-JRM01. The results obtained from PBD shown that NO3- concentration, light intensity and NaHCO3 concentration were the significant factors that affecting biomass productivity. Through CCD, optimum biomass, lipid, and carbohydrate productivities were obtained at 401.81 mg/L NO3–, 11238.20 lux light intensity, and 0.30 g/L NaHCO3, achieving the highest biomass productivity of 404.24 mg/L/day, highest lipid productivity of 65.3 mg/L/day, and highest carbohydrate productivity of 165.43 mg/L/day. The major fatty acid methyl esters (FAMEs) produced were palmitic acid (33.54%) and linoleic acid (30.29%), thus producing microalgae-based biodiesel with properties complying with international biodiesel standards.

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Section: Fame Profilementioning

confidence: 86%

OPTIMISATION OF BIOMASS, LIPID AND CARBOHYDRATE PRODUCTIVITIES IN Chlorella vulgaris FOR BIOFUEL PRODUCTION

et al. 2022

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“…Several winterization steps are required to achieve a yield of higher than 25–26% and, thereby, render this technique viable. , This method shows an influence on the other properties of biodiesel, such as oxidative stability, ignition quality, calorific value, and yield. , Oxidation stability can be improved using antioxidants in winterized biodiesel . The yield problem is particularly prevalent for the crystallization of FAAE mixtures with similar molecular structures . The yield tended to decrease with a decreasing temperature, and the crystallization mode of raw materials has an important influence on the yield of biodiesel …”

Section: Improving Methodsmentioning

confidence: 99%

“…The method is both facile and energy-efficient because vacuum filtration is not required. The process resulted in significant improvements in the CPs of the FAAE mixtures with only a single separation run; under optimum conditions, the reduction of CP is 8 °C . Traditionally, winterization based on agitation required at least 2 cycles of sequential cooling to obtain similar results …”

Section: Improving Methodsmentioning

confidence: 99%

“…58 The yield problem is particularly prevalent for the crystallization of FAAE mixtures with similar molecular structures. 120 The yield tended to decrease with a decreasing temperature, and the crystallization mode of raw materials has an important influence on the yield of biodiesel. 49 Winterization mainly has dry fractionation and solvent fractionation.…”

Section: Winterizationmentioning

confidence: 99%

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Cold Flow Properties of Biodiesel and the Improvement Methods: A Review

Leng

et al. 2020

Energy Fuels

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Biodiesel is a mixture of fatty acid alkyl esters (FAAEs) produced by transesterification, which has been promoted as a substitute for petroleum diesel in some areas of China. However, it shows poor cold flow properties (CFPs), such as high pour point, high cloud point, and high cold filter plugging point, meaning that biodiesel would crystallize under low-temperature conditions, thus resulting in engine problems and emission issues. This review focused on the mechanisms related to the CFPs of biodiesel and outlined the factors that initialize and accelerate the crystallization process. The influence of CFPs on engine performance and pollutant emissions was also discussed. Particular emphasis was given to available methods that can improve the CFPs of biodiesel. Modifying the composition of FAAEs, changing the component ratio, and removing minor constituents are three primary directions. Every derivative method was described in detail about the characteristics, shortcomings, and what can be improved. The type and load of cloud point/pour point/cold filter plugging point cold flow improvers were compared and selected on the basis of the improvement effect of CFPs. Microemulsion is a new method that may be used to improve the CFPs of biodiesel. As a result of the variability of the biodiesel components and the complexity of each improving method on the overall fuel properties and performance, the CFP modification methods should be studied and evaluated carefully and comprehensively before being adopted in industrial applications.

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“…Obviously, strictly BDs represent fuels with not good cold-flow properties. Separation of the components with high melting points (winterization, [ 6 , 90 , 154 ]) considerably complicates BD production and makes this process more expensive. To date, the blending of BDs with petroleum diesel is the most efficient and commonly used approach to involve BDs in the global fuel industry [ 11 , 17 , 20 , 21 ].…”

Section: Polymer Additives For Bd/petroleum Diesel Blendsmentioning

confidence: 99%

Polymer Cold-Flow Improvers for Biodiesel

Nifant’ev

Ivchenko

2021

Polymers

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In recent decades, biodiesel has been explored as a prospective comparable fuel to petroleum diesel for compression ignition engines. However, several drawbacks have limited the wide application of biodiesel as motor fuel, and the poor cold-flow property is one of the major problems. This problem is compounded by the diversity of the biodiesel characteristics arising from a variety of chemical compositions of biodiesel from different sources. Among the methods investigated to improve the cold-flow properties of biodiesel, the use of additives seems highly promising. Despite the significant number of publications, the potential of this method is still far from having been completely discovered or exploited. In the present review, we briefly describe the sources, chemical composition, and physico-chemical characteristics of the main types of biodiesel. Next, we discuss the examples of the use of different polymer additives for the improvement of the cold-flow characteristics of biodiesel and biodiesel/petroleum diesel blends. Additionally, we tried to assess the prospects of the polymer additives to enhance biodiesel performance. The main conclusion of this survey is that innovative and high-efficiency cold-flow improvers for biodiesel should be further developed.

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Evaluation of the separation of saturated fatty acid methyl esters obtained from additive winterization using a nonionic surfactant

Cited by 5 publications

References 21 publications

OPTIMISATION OF BIOMASS, LIPID AND CARBOHYDRATE PRODUCTIVITIES IN Chlorella vulgaris FOR BIOFUEL PRODUCTION

OPTIMISATION OF BIOMASS, LIPID AND CARBOHYDRATE PRODUCTIVITIES IN Chlorella vulgaris FOR BIOFUEL PRODUCTION

Cold Flow Properties of Biodiesel and the Improvement Methods: A Review

Polymer Cold-Flow Improvers for Biodiesel

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