Flash Pyrolysis of Lemon Grass (Cymbopogon flexuosus) for Bio-oil Production in an Electrically Heated Fluidized Bed Reactor

Madhu, P.; Livingston, T. Stephen; Kanagasabapathy, H.

doi:10.1007/s12649-017-9872-6

Cited by 32 publications

(4 citation statements)

References 31 publications

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“…The highest BO yield from this bio‐waste reached 40.60 wt.% at 45°C/min rate of heating, 0.71‐ to 1.0‐mm range of particle size and 450°C pyrolysis temperature. The flash pyrolysis of the same feedstock in a fluidized‐bed reactor produced a BO yield of 50.60 wt.% using 1.0‐mm particle size and 450°C pyrolysis temperature 49 …”

Section: Introductionmentioning

confidence: 99%

Production and characterization of liquid biofuels from locally available nonedible feedstocks

Fadhil

2020

Asia-Pacific J Chem Eng

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Mandarin (Citrus reticulata) seeds were exploited as possible nonedible feedstock for the synthesis of liquid biofuels, namely, biodiesel and bio‐oil via alkali–alcoholysis and pyrolysis routes, respectively. The alkali–alcoholysis reaction of mandarin seed oil with an equivalent mixture of methanol–ethanol alcohols was examined and optimized by analysis of variance (ANOVA). The best experimental yield of biodiesel (95.55 ± 1.55 wt.%) was comparable with the predicted yield (95.0 wt.%). Also, analysis by one‐way ANOVA showed that the selected variables were statistically significant. The 1H NMR spectroscopy asserted the transformation of the oil to biodiesel. Also, the evaluated properties of the biodiesel were in the range given by ASTM D6751 standards. The mandarin citrus seeds have also subjected to the thermal pyrolysis process in a fixed‐bed reactor to obtain bio‐oil and bio‐char. The influence of the pyrolysis temperature, time, feed particle size, and heating rate on the bio‐oil yield was optimized. The highest yield of bio‐oil (52.34 ± 1.25 wt.%) was attained at 475°C for 60 min using 70 mesh particle size of the feed with a heating rate of 20°C/min. The bio‐oil was analyzed by Fourier transform infrared spectroscopy (FTIR), 1H NMR spectroscopy, and ultimate analysis. The bio‐oil derived from MCS has an empirical formula of CH1.88 O0.16 N0.012 S0.0005 with 37.96 MJ/kg of heating value. The elevated carbon level, low oxygen content, and high calorific value (25.45 MJ/kg) of the attained bio‐char suggest its suitability as a solid fuel. Also, the obtained bio‐char can be utilized for preparing carbon adsorbent as a result of its good surface area.

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Section: Introductionmentioning

confidence: 99%

Production and characterization of liquid biofuels from locally available nonedible feedstocks

Fadhil

2020

Asia-Pacific J Chem Eng

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“…FTIR functional groups with class of compounds available in maize straw bio-oil are presented in Table 3. Previous studies shows that nearly similar type of functional groups were obtained using FTIR of bio-oil [46][47][48]. The GC-MS analysis was carried out to identify the chemical compounds available in bio-oil produced from maize straw.…”

Section: Chemical Composition Of Bio-oilmentioning

confidence: 92%

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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“…The experiments were conducted at various temperatures, particle sizes and sweep gas flow rates of 350–550 °C, 0.5 mm to 2.0 mm and 1.5–2.25 m 3 /hr respectively. The selected parameters were selected from past literature and are well suitable for the conversion of agricultural residues to yield maximum pyrolysis oil 24 , 25 . This work is considered unique in terms of the selection of feedstock.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on utilization of Sesbania grandiflora residues through thermochemical conversion process for the production of value added chemicals and biofuels

Janardhana,

Sowmya Dhanalakshmi,

Thilagham

et al. 2024

Sci Rep

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All the countries in the world are now searching for renewable, environmentally friendly alternative fuels due to the shortage and environmental problems related with the usage of conventional fuels. The cultivation of cereal and noncereal crops through agricultural activities produces waste biomasses, which are being evaluated as renewable and viable fossil fuel substitutes. The thermochemical properties and thermal degradation behavior of Sesbania grandiflora residues were investigated for this work. A fluidized bed reactor was used for fast pyrolysis in order to produce pyrolysis oil, char and gas. Investigations were done to analyze the effect of operating parameters such as temperature (350–550 °C), particle size (0.5–2.0 mm), sweeping gas flow rate (1.5–2.25 m3/h). The maximum of pyrolysis oil (44.7 wt%), was obtained at 425 °C for 1.5 mm particle size at the sweep gas flow rate of 2.0 m3/h. Fourier transform infrared spectroscopy and gas chromatography-mass spectrometry methods were used to examine the composition of the pyrolysis oil. The pyrolysis oil is rich with aliphatic, aromatic, phenolic, and some acidic chemicals. The physical characteristics of pyrolysis oil showed higher heating value of 19.76 MJ/kg. The char and gaseous components were also analyzed to find its suitability as a fuel.

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Flash Pyrolysis of Lemon Grass (Cymbopogon flexuosus) for Bio-oil Production in an Electrically Heated Fluidized Bed Reactor

Cited by 32 publications

References 31 publications

Production and characterization of liquid biofuels from locally available nonedible feedstocks

Production and characterization of liquid biofuels from locally available nonedible feedstocks

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

Experimental investigation on utilization of Sesbania grandiflora residues through thermochemical conversion process for the production of value added chemicals and biofuels

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