A comparative production and characterisation of fast pyrolysis bio-oil from Populus and Spruce woods

Zadeh, Zahra Echresh; Abdulkhani, Ali; Saha, Basudeb

doi:10.1016/j.energy.2020.118930

Cited by 26 publications

(4 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although it is a bit lower than the normal range of 35-40% for pyrolysis oil obtained from waste biomass, the oxygen content of the bio-oil was measured at 32.17%. This figure is still rather close to the standard range [56]. For the purpose of determining the calorific value of bio-oil, the oxygen concentration is an extremely important factor.…”

Section: Physicochemical and Elemental Properties Analysissupporting

confidence: 75%

Optimizing Seaweed (Ascophyllum nodosum) Thermal Pyrolysis for Environmental Sustainability: A Response Surface Methodology Approach and Analysis of Bio-Oil Properties

Rony,

Rasul,

Jahirul

et al. 2024

Energies

View full text Add to dashboard Cite

This study focuses on optimizing the thermal pyrolysis process to maximize pyrolysis oil yield using marine biomass or seaweed. The process, conducted in a batch reactor, was optimized using response surface methodology and Box–Behnken design. Variables like temperature, residence time, and stirring speed were adjusted to maximize bio-oil yield. The optimal conditions yielded 42.94% bio-oil at 463.13 °C, with a residence time of 65.75 min and stirring speed of 9.74 rpm. The analysis showed that temperature is the most critical factor for maximizing yield. The bio-oil produced contains 11 functional groups, primarily phenol, aromatics, and alcohol. Its high viscosity and water content make it unsuitable for engines but suitable for other applications like boilers and chemical additives. It is recommended to explore the potential of refining the bio-oil to reduce its viscosity and water content, making it more suitable for broader applications, including in engine fuels. Further research could also investigate the environmental impact and economic feasibility of scaling up this process.

show abstract

Section: Physicochemical and Elemental Properties Analysissupporting

confidence: 75%

Optimizing Seaweed (Ascophyllum nodosum) Thermal Pyrolysis for Environmental Sustainability: A Response Surface Methodology Approach and Analysis of Bio-Oil Properties

Rony,

Rasul,

Jahirul

et al. 2024

Energies

View full text Add to dashboard Cite

show abstract

“…On the other hand, the use of Na 2 CO 3 and AC increased the yields of the bio-oil significantly while the use of SiC decreased the yield of bio-oil compared to without additive. 42 This may be because of the fact that, use of both Na 2 CO 3 and AC promotes the extensive thermal cracking of the feedstock resulting in the higher conversion of the feedstock into the pyrolytic volatiles and then condensed to form a higher yield of bio-oil. 47 For more specific, the bio-oil yields were increased by the ranges of 18–21% and 22–32% when using both Na 2 CO 3 and AC additives respectively compared to without additive.…”

Section: Resultsmentioning

confidence: 99%

“…Whilst the corresponding increment were found to be respectively 1.8-2.3 times and 1.2-1.5 times more when using AC additive. This may be because of promoting the hydrogenation reactions 42 among the hydrocarbon molecules present in the pyrolysis volatiles by the addition of Na 2 CO 3 and AC, resulting in the addition of hydrogen atoms to hydrocarbon molecules in the bio-oils. 43 In addition, a low proportion of nitrogen and sulfur elements was identified in the bio-oils when using Na 2 CO 3 and AC additives compared to using SiC and without additive.…”

Section: Chemical Composition and Heating Valuementioning

confidence: 99%

Conversion of biomass into biofuel by microwave pyrolysis: Assessment of energy and exergy aspect

Fodah

Abdelwahab

2022

Energy & Environment

View full text Add to dashboard Cite

Higher heating value, energy and exergy analysis of bio-oil and biochar from microwave pyrolysis have been assessed. The energy efficiency for the pyrolysis system has been analyzed by the comparisons of energy based on heating values. The exergy analysis was done using standard relationships by the fraction of energy actually available for practical uses as biofuel. The yield of bio-oil and its higher heating value (HHV) were increased by 2–13% and 25–130% respectively when the microwave power increased from 500 W to 700 W, then both are decreased at 900 W. Using activated carbon (AC) had a remarkable effect on increasing the yield and HHV of bio-oil by 18–31% and 3–7 times respectively more than other cases. By using the additives, the yield of biochar decreased remarkably, while its HHV increased by 12%-40% compared to without additive. The maximum energy and exergy rate (1.74 MJ/h) of the bio-oil were obtained at 700 W level of microwave power using AC additive, while for biochar were 1.95 MJ/h and 2 MJ/h when no additive used. The maximum values of energy and exergy of the bio-oil were computed to be 27% and 26% respectively at 700 W using AC as an additive. The maximum values of energy and exergy efficiency of biochar were calculated to be 33% and 32% respectively when pyrolyzed at 500 W using AC. The energy and exergy efficiencies of the pyrolysis system were computed to be maximum value of 53.3% and 52.8% respectively at 700 W using AC additive.

show abstract

“…Produced chars find application in a fluidized bed combustor, generating the heat necessary for the process. CaO has been used as a catalyst in many different applications, such as oxidation of unburned pollutants in the flue gas [24], Fisher Tropsch synthesis [25], gasification [26], production of syngas from pyrolysis [27], and fast pyrolysis [22,[28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Influence of Hydrothermal Carbonization on Catalytic Fast Pyrolysis of Agricultural Biomass

et al. 2023

View full text Add to dashboard Cite

Fast pyrolysis has been a subject of intensive research thanks to its ability to produce high yields of liquid products, known as pyrolysis oil. This is an important renewable intermediate which could be used for the subsequent production of fuels and chemicals. For fossil-based materials, pyrolysis oil can provide circular building blocks. Furthermore, direct use of pyrolysis oil in gas turbines has also been proven feasible. However, a relatively high oxygen content in raw biomass has detrimental effects on the quality of such oil. This work proposes hydrothermal carbonization as a valorization technique, beneficial from the point of view of subsequent fast pyrolysis. Within the scope of this work, the influence of the parameters of hydrothermal carbonization (HTC) on the kinetics of fast pyrolysis of agricultural biomass (miskanthus), as well as the influence of in situ use of a CaO catalyst, is investigated. Kinetics is investigated using a novel type of thermogravimetric analyzer (TGA) called Cyclonic TGA, which is able to achieve heating rates similar to a real fast pyrolysis process. Moreover, the influence of HTC on the removal of part of its inorganic constituents is determined within the scope of this work.

show abstract

A comparative production and characterisation of fast pyrolysis bio-oil from Populus and Spruce woods

Cited by 26 publications

References 39 publications

Optimizing Seaweed (Ascophyllum nodosum) Thermal Pyrolysis for Environmental Sustainability: A Response Surface Methodology Approach and Analysis of Bio-Oil Properties

Optimizing Seaweed (Ascophyllum nodosum) Thermal Pyrolysis for Environmental Sustainability: A Response Surface Methodology Approach and Analysis of Bio-Oil Properties

Conversion of biomass into biofuel by microwave pyrolysis: Assessment of energy and exergy aspect

Influence of Hydrothermal Carbonization on Catalytic Fast Pyrolysis of Agricultural Biomass

Contact Info

Product

Resources

About