Catalytic pyrolysis of green algae for hydrocarbon production using H+ZSM-5 catalyst

Thangalazhy‐Gopakumar, Suchithra; Adhikari, Sushil; Chattanathan, Shyamsundar Ayalur; Gupta, Ram B.

doi:10.1016/j.biortech.2012.05.080

Cited by 266 publications

(98 citation statements)

References 32 publications

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“…The identified compounds and their relative peak areas were found to be similar to those reported earlier by Thangalazhy-Gopakumar et al [29]. The relative areas of each compound group at different pyrolysis temperatures are presented in Table 2.…”

Section: Pyrolysis Products Of Schizochytrium Limacinum By Gc/mssupporting

confidence: 84%

“…The presence of nitrogen compounds in the pyrolysis products is assumed to be due to degradation of proteins and they account for the potential emission of nitrogen oxides during fuel combustion [3,29,34]. The relative content of nitrogen compounds in pyrolysis products of Schizochytrium limacinum increased as the temperature was increased from 300 °C to 800 °C.…”

Section: Pyrolysis Products Of Schizochytrium Limacinum By Gc/msmentioning

confidence: 99%

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Yield and Characteristics of Pyrolysis Products Obtained from Schizochytrium limacinum under Different Temperature Regimes

Zhou

et al. 2013

Energies

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Pyrolysis-gas chromatographic mass spectrometry (Py-GC/MS) was used to determine the yield and chemical composition of the pyrolysis products of Schizochytrium limacinum. The pyrolysis was carried out by varying the temperature from 300 °C to 800 °C. It was found that the main decomposition temperature of Schizochytrium limacinum was 428.16 °C, at which up to 66.5% of the mass was lost. A further 18.7% mass loss then occurred in a relatively slow pace until 760.2 °C due to complete decomposition of the ash content of Schizochytrium limacinum. The pyrolysis of Schizochytrium limacinum at 700 °C produced the maximum yield (67.7%) of pyrolysis products compared to 61.2% at 400 °C. While pollutants released at 700 °C (12.3%) was much higher than that of 400 °C (2.1%). Higher temperature will lead to more pollutant (nitrogen compounds and PAHs) release, OPEN ACCESSEnergies 2013, 6 3340 which is harmful to the environment. Considering the reasonably high yield and minimum release of pollutants, a lower pyrolysis temperature (400 °C) was found to be optimum for producing biofuel from Schizochytrium limacinum.

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Section: Pyrolysis Products Of Schizochytrium Limacinum By Gc/mssupporting

confidence: 84%

Section: Pyrolysis Products Of Schizochytrium Limacinum By Gc/msmentioning

confidence: 99%

Yield and Characteristics of Pyrolysis Products Obtained from Schizochytrium limacinum under Different Temperature Regimes

Zhou

et al. 2013

Energies

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“…The results showed that a bio-oil yield of 52.7 wt% was obtained which contained aromatic and alkane compounds [19]. In another study performed by Chaiwong et al, bio-char and bio-oil have been produced at temperatures between 450 and 600 °C in slow pyrolysis of Spirulina sp.…”

Section: Gopakumar Et Al (2012) Performed the Catalytic Pyrolysis Ofmentioning

confidence: 95%

Pyrolysis of Isochrysis Microalgae With Metal Oxide Catalysts for Bio-Oil Production

Aysu

2016

Journal of the Turkish Chemical Society, Section A: Chemistry

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Pyrolysis of Isochrysis microalga was carried out in a fixed-bed reactor without and with metal oxide catalysts (CeO2, TiO2, Al2O3) for the first time at the temperatures of 450, 500 and 550 °C with a constant heating rate of 40 °C/min. The pyrolytic conditions including catalyst and temperature were studied in terms of their effects on the yields of pyrolytic products and quality. The amounts of bio-char, bio-oil, and gaseous products were calculated. The composition of the produced bio-oils was determined by Elemental analysis (EA), Fourier transform infrared spectroscopy (FT-IR), proton nuclear magnetic resonance ( 1 H NMR) and Gas chromatography/mass spectrometry (GC-MS) techniques. As a result of the pyrolysis experiments, it is shown that there have been significant effects of both catalyst and temperature on the conversion of Isochrysis microalgae into solid, liquid (bio-oil) and gas products. The highest bio-oil yield (24.30 %) including aqueous phase was obtained in the presence of TiO2 (50%) as catalyst at 500 °C. 98 different compounds were identified by GC-MS in bio-oils obtained at 500 o C. According to 1 H NMR analysis, bio-oils contained ∼60-64% aliphatic and ∼17-19% aromatic structural units. EA showed that the bio-oils contained ∼66-69% C and having 31-34 MJ/kg higher heating values.

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“…It is in agreement with some previous studies in catalytic pyrolysis of biomass by using zeolite, which indicated the increase of aromatic hydrocarbon content in bio-oil compared to that of non-catalytic pyrolysis. Application of ZSM-5 on pyrolysis of microalgae increased the content of aromatic carbon almost three-fold, from 19.8 to 50.8% [32]. Wang et al found that ZSM-5 catalyst increased the aromatic hydrocarbon content from 0.72%, obtained by non-catalytic pyrolysis of Douglas-fir, to 6.89% [33].…”

Section: Catalystmentioning

confidence: 99%

Catalytic Pyrolysis of Biomass to Synthesize Bio-oil and Chemicals: A Review

Dewayanto¹,

Nordin²

2016

CHEMICA: Jurnal Teknik Kimia

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Catalytic pyrolysis of green algae for hydrocarbon production using H+ZSM-5 catalyst

Cited by 266 publications

References 32 publications

Yield and Characteristics of Pyrolysis Products Obtained from Schizochytrium limacinum under Different Temperature Regimes

Yield and Characteristics of Pyrolysis Products Obtained from Schizochytrium limacinum under Different Temperature Regimes

Pyrolysis of Isochrysis Microalgae With Metal Oxide Catalysts for Bio-Oil Production

Catalytic Pyrolysis of Biomass to Synthesize Bio-oil and Chemicals: A Review

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