Effect of operating parameters on production of bio-oil from fast pyrolysis of maize stalk in bubbling fluidized bed reactor

Ali, Nawazish; Saleem, Mahmood; Shahzad, Khurram; Hussain, Sadiq; Chughtai, Arshad

doi:10.1515/pjct-2016-0053

Cited by 30 publications

(11 citation statements)

References 60 publications

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“…The biomass particle size was 1-2 mm. It was observed that the particle size 1 mm at 490 °C produced the bio-oil with maximum yield (42 wt%) [108] . Effect of particle size and temperature on woody biomass fast pyrolysis at high temperature (10 0 0-140 0 °C) was investigated by Septien et al They used a drop tube furnace to perform the pyrolysis experiments.…”

Section: The Effects Of Particle Size Of Biomass On Pyrolysismentioning

confidence: 99%

“…Operation conditions were: temperature range of 360-540 °C, feed particle size of 1-2 mm and carrier gas flow rate of 7.0-13.0 m 3 /h. They concluded that the maximum yield of bio-oil was 42 wt% produced at 490 °C with the particle size of around 1.0 mm and carrier gas flow rate of 11.0 m 3 /h [108] . Wood pyrolysis in a bubbling fluid reactor was simulated by Seok et al For this aim, computational fluid dynamics (CFD) was used and the rising bubble motion and its role for pyrolysis reaction were studied.…”

Section: Bubbling Fluidised Bedsmentioning

confidence: 99%

See 1 more Smart Citation

Biomass pyrolysis: A review of the process development and challenges from initial researches up to the commercialisation stage

Gholizadeh

2019

Journal of Energy Chemistry

481

216

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Section: The Effects Of Particle Size Of Biomass On Pyrolysismentioning

confidence: 99%

Section: Bubbling Fluidised Bedsmentioning

confidence: 99%

Biomass pyrolysis: A review of the process development and challenges from initial researches up to the commercialisation stage

Gholizadeh

2019

Journal of Energy Chemistry

481

216

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“…Unfortunately, high-quality data for derivation of quantitative relationship between the particle size and pyrolysis yields are lacking. Ali et al reported that particle size has a linear effect on yields from pyrolysis of maize stalks in a bubbling fluidized bed reactor for particle sizes between 1 and 2 mm . However, the narrow range of particle sizes and small amount of data make it undesirable for use in developing a prediction model.…”

Section: Methodsmentioning

confidence: 99%

Dynamic Life-Cycle Analysis of Fast Pyrolysis Biorefineries: Impacts of Feedstock Moisture Content and Particle Size

Cai

2020

ACS Sustainable Chem. Eng.

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The commercialization of biorefineries has been met with significant obstacles due to the technical difficulties of handling solid biomass feedstocks, which are highly variable in physical properties and chemical compositions. An understanding of the principles of unit operations along the supply chain is key to the success of the biofuel industry. This study applies a dynamic life-cycle analysis (DLCA) methodology by developing quantitative relationships between the inputs and outputs for each unit operation based on scientific understanding of the causal effects. Using the DLCA, we assessed system sustainability of drop-in fuel production from fast pyrolysis of pine residues followed by hydro-processing. Life-cycle greenhouse gas (GHG) emissions were calculated for 4641 runs involving two key feedstock parameters: moisture content after field drying and particle size of the feed to pyrolyzer. Moisture contents varied between 25% and 35%, while particle sizes varied between 0.5 and 5 mm in these runs. The life-cycle GHG emissions of these cases vary from 22 to 40 g/MJ. Close examination of each unit operation’s contribution to the total GHG emissions reveals that low moisture content after field drying produces savings in energy consumption during feedstock transportation and on-site drying. However, although small particle size leads to overall higher fuel yield, it also requires a significant amount of energy for feedstock size reduction and fuel production. The energy penalty outweighs the benefit of increased fuel yields, especially when fine particles (<1 mm) are used for pyrolysis; thus, small particle size leads to increased GHG emissions overall. The results highlight the trade-offs between the energy demand for preprocessing and the conversion yields, which can be addressed with DLCA.

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“…In addition Ali et al [43] performed the fast pyrolysis of maize straw in a fluidized bed reactor with feeding capacity of 2 kg/h. The maximum bio-oil yield of 42.0% was achieved at a pyrolysis temperature of 490℃ and biomass particle size of 1.0 mm.…”

Section: Comparison Of Present Work With Similar Studiesmentioning

confidence: 99%

Experimental investigation on the production of bio-oil from maize straw at a pilot scale

Rathore

Paul

Panwar

2020

Environmental Engineering Research

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The production of biofuel from agricultural crop residue via fast pyrolysis is becoming a popular option. It can help to build a robust renewable fuel market and ensure environmental sustainability. In this study, the widely available maize straw was used for the production of bio-oil in a fluidized bed reactor at a pilot scale. The effect of pyrolysis parameters such as temperature, biomass particle size, and carrier gas flow rate on the production of bio-oil, char, and syngas was investigated. The maximum bio-oil yield of 44.6 wt.% was achieved at a pyrolysis temperature of 500℃. The physicochemical properties of bio-oil were determined, and the heating value was found to be 18.5 MJ/kg. Furthermore, the chemical composition of maize straw bio-oil was analyzed by GC-MS and FTIR. The compounds such as phenol (22.83%), carboxylic acids (27.36%), ketone (19.14%) alcohols (2.09%), esters, furfural, hydrocarbon and aromatic compounds, etc. were identified in the bio-oil. The cost analysis of the developed system showed that the cost of production of bio-oil from maize straw was 0.47 US$/L and the calculated payback period was 1.47 year.

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Effect of operating parameters on production of bio-oil from fast pyrolysis of maize stalk in bubbling fluidized bed reactor

Cited by 30 publications

References 60 publications

Biomass pyrolysis: A review of the process development and challenges from initial researches up to the commercialisation stage

Biomass pyrolysis: A review of the process development and challenges from initial researches up to the commercialisation stage

Dynamic Life-Cycle Analysis of Fast Pyrolysis Biorefineries: Impacts of Feedstock Moisture Content and Particle Size

Experimental investigation on the production of bio-oil from maize straw at a pilot scale

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