Corrigendum to “Fast hydrothermal liquefaction of a Norwegian macro-alga: Screening Tests” [Algal Res. 2014, 6, Part B (0), 271–276]

Bach, Quang‐Vu; Sillero, Miguel Valcuende; Tran, Khanh-Quang; Skjermo, Jorunn

doi:10.1016/j.algal.2016.02.012

Cited by 5 publications

(5 citation statements)

References 7 publications

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“…The information provided in this study indicates that the results available in the literature for microalgae HTL (carried out in the vast majority in batch experiments) may vary when continuous processing is applied. In this sense, our results show different trends than in Faeth et al 12 or Bach et al 13 In those studies it was reported that remarkable increases in the biocrude oil yields occurred when high heating rates were applied in batch experiments. This did not apply to the data presented in the current study.…”

Section: Energy and Fuelscontrasting

confidence: 75%

“…It has been reported in some of these studies that instant heating rates enhance the formation of biocrude oil during HTL. 12,13 Moreover, most of the experiments reported in the literature have been done in tubular reactors. These issues motivated the present study, in which a CSTR of 190 mL is used, viz., 350°C and 20 MPa, in order to achieve instant heating rates.…”

Section: Introductionmentioning

confidence: 99%

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Hydrothermal Liquefaction of Microalgae in a Continuous Stirred-Tank Reactor

et al. 2015

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The microalgae species Nannochloropsis gaditana (N. gaditana, marine) and Scenedesmus almeriensis (S. almeriensis, freshwater) were subjected to hydrothermal liquefaction (HTL; 350°C; residence time of 15 min) in a continuous stirred-tank reactor (190 mL) at microalgae loadings of 9.1 and 18.2 wt % in the feed. The results indicate that the high loading of biomass in the feed promotes the formation of biocrude oil, with a maximum yield of 54.8 ± 3.4 wt % for N. gaditana. A similar type of biocrude was obtained with both species. Its nitrogen and carbon contents increased at the high biomass loading, as well as the higher heating value. The HTL product yields varied from those reported for batch experiments carried out at the same reaction conditions. Most of the nutrients initially present in the feedstock were recovered to some extent in bioavailable forms in the aqueous phase, especially in the case of N. gaditana.

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Section: Energy and Fuelscontrasting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Hydrothermal Liquefaction of Microalgae in a Continuous Stirred-Tank Reactor

et al. 2015

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“…One of the major limitations of using macroalgae to produce biofuels is their high ash content (up to 50%), which reduces the yield and quality of the generated bio-oils and restricts their use in direct combustion and gasification processes [12,13]. Considering the high levels of both nitrogen and ash in Mexican Sargassum, a preceding thermal pre-treatment process, catalytic zeolite deactivation precursor, or pre-exposure to ion exchange resins might be a useful remediation procedure for further studies.…”

Section: Discussionmentioning

confidence: 99%

“…HTL is a biomass to bio-liquid conversion route carried out in water at moderate temperature of 280-370°C and high pressure (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25) MPa) that has a liquid bio-crude as the main product along with gaseous, aqueous and solid phase by-products.…”

Section: Introductionmentioning

confidence: 99%

Continuous Hydrothermal Liquefaction of Sargassum seaweed

Allen

Pearce²

2023

Preprint

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Hydrothermal liquefaction (HTL) is often mooted as a promising and sustainable processing methodology for conversion of biomass into usable products, including bio-oils, which have the potential to alleviate humanitys reliance on fossil fuels. To date, the majority of HTL development work with novel biomasses has been undertaken at laboratory scale in batch processes and the results extrapolated to theoretical continuous flow processes required for industrial uptake. Here, we assess the use of a novel continuous flow HTL system, applying it to Sargassum (seaweed) material and generating a bio-oil which is assessed against typical crude oil fractions.

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“…This approach uses rapid heating at about 5-10 °C s −1 and total reaction times of tens of seconds. The non-isothermal process is akin to fast pyrolysis and fast hydrothermal liquefaction, [13][14][15][16][17][18] which use rapid heating to decompose the biopolymers in biomass. Conventional neutral hydrolysis or catalyzed hydrolysis under isothermal conditions has an environmental energy impact metric of at least 10 4 °C min.…”

Section: Introductionmentioning

confidence: 99%