Nitrogen transformations during fast pyrolysis of sewage sludge

Cao, Jing‐Pei; Li, Liu-Yun; Morishita, Kayoko; Xiao, Xianbin; Zhao, Xiao-Yan; Wei, Xian‐Yong; Takarada, Takayuki

doi:10.1016/j.fuel.2010.08.015

Cited by 230 publications

(131 citation statements)

References 27 publications

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“…Some of the nitrogen is also distributed to the bio-char. Although not measured in our experiments, previous reports suggest that the non-condensable gas fraction also contains some of the nitrogen from the biomass, mostly in the form of NH 3 [16].…”

Section: Fast Pyrolysis Yields and Elemental Distributioncontrasting

confidence: 55%

Production and Analysis of Fast Pyrolysis Oils from Proteinaceous Biomass

Mullen

Boateng

2011

Bioenerg. Res.

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Fast pyrolysis of lignocellulosic biomass is a facile method for producing high yields of liquid fuel intermediates. However, because most fast pyrolysis oils are highly oxygenated, acidic, and unstable, identification of feedstocks that produce higher quality pyrolysis liquids is desirable. Therefore, the effect of feedstock protein content was studied by performing fast pyrolysis experiments on biomass with varying protein content. The feedstocks ranged from low-protein content, ∼5% up to feedstocks with >40 wt.% protein content. Protein content was not a major factor in the yield of pyrolysis oil or the distribution of biomass carbon into the pyrolysis products. However, elevated levels of protein did cause a deoxygenation effect in the pyrolysis process with more of the oxygen rejected from the biomass as water. The deoxygenation caused the pyrolysis oil from the higher protein containing biomass to have higher energy content. Furthermore, the concentration of basic nitrogen groups caused the pyrolysis oil from the higher protein biomass to shift to a more neutral pH and lower total acid number than has been measured typically for lignocelluloic biomass pyrolysis oils. Some of the pyrolysis oils, particularly those from the mustard seed family presscakes exhibited better thermal stability than low-protein pyrolysis oils.

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Section: Fast Pyrolysis Yields and Elemental Distributioncontrasting

confidence: 55%

Production and Analysis of Fast Pyrolysis Oils from Proteinaceous Biomass

Mullen

Boateng

2011

Bioenerg. Res.

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“…The first main peak at 255°C is associated with lipid pyrolysis, whereas the second one at 300°C is related to carbohydrate decomposition. The shoulder observed between 360 and 525°C is associated with protein decomposition, which may also have a contribution from lignin pyrolysis [41,47].…”

Section: Thermogravimetric Studymentioning

confidence: 99%

Fast co-pyrolysis of sewage sludge and lignocellulosic biomass in a conical spouted bed reactor

Álvarez

Amutio

López

et al. 2015

Fuel

201

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“…In addition, the oxygen content in the bio-oil decreased slightly from 8.530% with MgAl4-LDO/ZSM-5, to 7.622% with MgO/ZSM-5, which might ascribe to the stronger basicity of MgO. The low values for O/C and N/C molar ratios indicated that some nitrogen and oxygen were removed in the form of CO, CO 2 and NH 3 (Aysu and Sanna, 2015;Cao et al, 2013) during the catalytic pyrolysis. The O/C molar ratio of the bio-oil with MgAl4-LDO/ZSM-5 was apparently lower than that with HZSM-5 which was reported by Zeng et al (2015).…”

Section: Effects Of Catalystsmentioning

confidence: 97%