Biomass conversion into valuable products within the integrated management of bio-resources

Ionescu, Gabriela; Bulmau, Cora

doi:10.1051/e3sconf/20198507008

Cited by 6 publications

(2 citation statements)

References 24 publications

(27 reference statements)

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“…Nowadays, biomass and combustible wastes represent a sustainable option in substituting fossil fuel dependency [5][6][7]. The complex structure and properties allow its conversion into various biofuels in gas, liquid (bio-oil) and solid (bio-char) form [8,9].…”

Section: Introductionmentioning

confidence: 99%

Bio-Gaseous Fuels from Agricultural Waste Pyrolysis (Part I)

2019

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The study, presented in two parts, puts in discussion the experimental results of low and high temperature pyrolysis on agricultural residues using a tubular batch reactor. During the experiment, nitrogen was used both as reaction environment and gas products carrier. The work focusses mainly on the pyrolysis gas analytical composition resulted from the process. The first part of the research is dedicated to the effect of process low temperature on rape straw pyrolysis. The experiments were conducted at 300°C, 400°C and 500°C to observe the solid – gas transformation at relative low temperatures. The main results revealed that, by balancing the amount of the nitrogen, the rape straw pyrolysis gas distribution varies by average between: 72%-77% CO2, 22%-24% CO, 1%-4% H2. The density of the gas in the devolatilization stage varies by average between 1.6-1.7 kg/m3, while its higher heating value ranges from 4 MJ/Nm3 - 8 MJ/Nm3.

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Section: Introductionmentioning

confidence: 99%

Bio-Gaseous Fuels from Agricultural Waste Pyrolysis (Part I)

2019

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“…Pyrolysis is an opportunity to convert biomass into more clean fuels (bio-fuels) instead of converting biomass directly into energy by traditional combustion, which is a more pollutant process for the environment. Agricultural wastes are currently seen as low-valued materials but are beginning to be recognized as resources to produce a variety of ecofriendly and sustainable products: bio-oil, bio-char and bio-gas [20][21].…”

Section: Introductionmentioning

confidence: 99%

Bio-Gaseous Fuels from Agricultural Waste Pyrolysis (Part II)

2019

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The results presented in the following paper are making the aim of a broadly research concentrated to investigate the temperature effects on agricultural waste pyrolysis performed in a batch reactor. Briefly, the motivation along with experimental features and main results generated from the rape straw low temperature pyrolysis (300°C-500°C) have been offered in the first part submitted at the MSE 2019 conference, with the title: Bio-gaseous fuels from agricultural waste pyrolysis (Part I). The current section (second part of the study) presents the results obtained in case of the rape straw high temperature pyrolysis (600°C-800°C). Overall, as expected, the augmentation of the operating temperature, inhibits the bio-oil and biochar formation, enhancing the pyrolysis gas production. The distribution of gaseous components varies depending on temperature and residence time. The transition stages and the formation of the main pyrolysis gaseous species are also presented and discussed. The most dominant chemical element from the pyrolysis gas is N2, due to its constant presence as non-oxidant agent in the process. Considering the same premise, the rape straw pyrolysis gaseous species distribution in the temperature range of 600°C-800°C varies between: 47%-58% CO2, 18%-28% CO, 14%-35% H2, while the pyrolysis gas density 1.1-1.4 kg/m3 and higher heating value 23-52 MJ/kg.

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