Thermal analysis studies on combustion characteristics of seaweed

Yu, Liang; Wang, Shizhuang; Jiang, Xiumin; Wang, N.; Zhang, C. Q.

doi:10.1007/s10973-007-8274-6

Cited by 56 publications

(22 citation statements)

References 19 publications

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“…Macroalgal combustion does not appear to have been greatly explored [162,163]. However, the high energy required to dry seaweed, the relatively low thermal values, and the high ash and sulphur content can cause fouling and corrosion of boilers, and unacceptable emissions could preclude direct combustion as an economic method of exploiting seaweed [71,162,163].…”

Section: Biofuelmentioning

confidence: 99%

Golden Tides: Problem or Golden Opportunity? The Valorisation of Sargassum from Beach Inundations

Milledge

Harvey

2016

JMSE

160

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Abstract:In recent years there have been massive inundations of pelagic Sargassum, known as golden tides, on the beaches of the Caribbean, Gulf of Mexico, and West Africa, causing considerable damage to the local economy and environment. Commercial exploration of this biomass for food, fuel, and pharmaceutical products could fund clean-up and offset the economic impact of these golden tides. This paper reviews the potential uses and obstacles for exploitation of pelagic Sargassum. Although Sargassum has considerable potential as a source of biochemicals, feed, food, fertiliser, and fuel, variable and undefined composition together with the possible presence of marine pollutants may make golden tides unsuitable for food, nutraceuticals, and pharmaceuticals and limit their use in feed and fertilisers. Discontinuous and unreliable supply of Sargassum also presents considerable challenges. Low-cost methods of preservation such as solar drying and ensiling may address the problem of discontinuity. The use of processes that can handle a variety of biological and waste feedstocks in addition to Sargassum is a solution to unreliable supply, and anaerobic digestion for the production of biogas is one such process. More research is needed to characterise golden tides and identify and develop commercial products and processes.

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Section: Biofuelmentioning

confidence: 99%

Golden Tides: Problem or Golden Opportunity? The Valorisation of Sargassum from Beach Inundations

Milledge

Harvey

2016

JMSE

160

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“…Direct combustion is, historically and currently, the main method by which energy from dry biomass resources is realised, providing heat or steam for household and industrial uses or for the production of electricity [38] However, in the case of macroalgae, combustion does not appear to have been greatly explored [39,40]. Dry macroalgae are easy to ignite, but have a low thermal value typical of carbohydrate-rich biomass (14-16 MJ·kg…”

Section: Direct Combustion Of Macroalgaementioning

confidence: 99%

“…Fluidised bed boilers have been suggested as the best method to combust materials with a high volatiles content, high ash and low thermal value fuels such as seaweed [39,40]. However, in order to combust seaweed in a fluidised bed it has been demonstrated that the particle size has to be ground down to <0.18 mm in order to minimize "heat-transfer resistance" [39].…”

Section: Direct Combustion Of Macroalgaementioning

confidence: 99%

“…However, in order to combust seaweed in a fluidised bed it has been demonstrated that the particle size has to be ground down to <0.18 mm in order to minimize "heat-transfer resistance" [39]. The necessity to grind down the biomass feed consequently adds to the energy demands of the process, with the amount of energy required to grind the biomass to a diameter of less than 1 mm (2%-3% of the heating value) being almost double that compared to the energy required for coal pulverisation (0.9%-1.2% of the heating value) [53].…”

Section: Direct Combustion Of Macroalgaementioning

confidence: 99%

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Macroalgae-Derived Biofuel: A Review of Methods of Energy Extraction from Seaweed Biomass

et al. 2014

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Abstract:The potential of algal biomass as a source of liquid and gaseous biofuels is a highly topical theme, but as yet there is no successful economically viable commercial system producing biofuel. However, the majority of the research has focused on producing fuels from microalgae rather than from macroalgae. This article briefly reviews the methods by which useful energy may be extracted from macroalgae biomass including: direct combustion, pyrolysis, gasification, trans-esterification to biodiesel, hydrothermal liquefaction, fermentation to bioethanol, fermentation to biobutanol and anaerobic digestion, and explores technical and engineering difficulties that remain to be resolved.

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“…Biomass resources include wood, agriculture residue, forestry residue and municipal solid waste [2] and contribute a lot to today's world supply, especially in some of the developing country which range from 40 to 50 % [3]. Effective utilization of biomass can help provide needed energy, since every year billions of tons of biomass are produced through photosynthesis.…”

Section: Introductionmentioning

confidence: 99%

Influence of biomass on coal combustion based on thermogravimetry and Fourier transform infrared spectroscopy

Zhao

Zhang

et al. 2015

J Therm Anal Calorim

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The blending of coal with biomass can lead to synergistic combustion behaviors. The combustion profile of two biomass sources, two coals and subsequent blends was studied using thermogravimetric analysis (TG). Ignition and burnout performances were identified and calculated from thermal curves. The comprehensive combustion performance index S was calculated from the thermogravimetric curves. CO 2 and CO concentrations were also studied via on-line analysis of TG-Fourier transform infrared spectroscopy. The results indicated that complicated chemical processes took place when coal was combusted with biomass, as compared with coal or biomass only. The lower ignition temperatures and higher volatility of biomass significantly improve the combustion behavior of coal. However, when biomass content in the blends exceeded 10 %, ignition and burnout performances were minimally affected. The combustion index S appears to give a more comprehensive description of the combustion process. The results from CO/CO 2 ratio also support the combustion behavior for the blending of coal and biomass. For this study, the addition of 10 % of biomass would be the optimum recommended combustion ratios for coal and biomass blends.

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Thermal analysis studies on combustion characteristics of seaweed

Cited by 56 publications

References 19 publications

Golden Tides: Problem or Golden Opportunity? The Valorisation of Sargassum from Beach Inundations

Golden Tides: Problem or Golden Opportunity? The Valorisation of Sargassum from Beach Inundations

Macroalgae-Derived Biofuel: A Review of Methods of Energy Extraction from Seaweed Biomass

Influence of biomass on coal combustion based on thermogravimetry and Fourier transform infrared spectroscopy

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