Comparative study of different algae pyrolysis using photoionization mass spectrometry and gas chromatography/mass spectrometry

Niu, Qi; Wang, Jinglan; Cao, Congcong; Cheng, Zhanjun; Zhu, Yanan; Wen, Wu; Wang, Jian; Pan, Yang; Yan, Beibei; Chen, Guanyi; Ronsse, Frederik

doi:10.1016/j.jaap.2021.105068

Cited by 26 publications

(11 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, information is limited about less volatile and largemolecular-weight compounds. 11,12 Previous studies have shown that there was a considerable number of long-chain amines, long-chain nitriles, and nitrogen-containing heterocycles with a large molecular weight in algae pyrolysis bio-oil. 13 Fourier transform infrared (FTIR) spectroscopy or nuclear magnetic resonance methods may result in more useful information on the bulk properties of the large molecular compounds, but these methods are not able to distinguish individual components.…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, it is reasonable to choose algae rich in different components to explore the effects of component differences on pyrolysis, which also matches the industrial practical application. 11,13 Three species of algae rich in different components (lipids, proteins, and carbohydrates) were selected to conduct rapid pyrolysis at five different temperatures (300, 400, 500, 600, and 700 °C) in a fixed-bed reactor system. ESI FT-ICR-MS in the positive mode was used to analyze the algae pyrolytic bio-oils, and GC−MS was performed to confirm the structural motifs of nitrogen species in parallel.…”

Section: Introductionmentioning

confidence: 99%

“…The heavy components in bio-oil are characterized by poor volatility, a high molecular mass, and high viscosity due to the complex structure. , The pyrolysis residence time becomes longer under high viscosity, causing the heavy components to be converted into undesirable products (e.g., heavy tar) via polymerization . Besides, the heavy components contain multiple functional groups, making them rather reactive .…”

Section: Introductionmentioning

confidence: 99%

“…Besides, the heavy components contain multiple functional groups, making them rather reactive . Studies have reported that the heavy components can easily form coke in thermal treatment, which can lead to the blockage of the reactor and catalyst deactivation. − The lack of information on the molecular structure of heavy components makes it difficult to develop catalysts/processes for their effective conversion and eventually creates challenges for bio-oil upgrading.…”

Section: Introductionmentioning

confidence: 99%

“…Gas chromatography–mass spectrometry (GC–MS) or GC × GC–MS analysis leads to obtaining some chemical dates of hundreds of volatile and semi-volatile compounds. Nevertheless, information is limited about less volatile and large-molecular-weight compounds. , Previous studies have shown that there was a considerable number of long-chain amines, long-chain nitriles, and nitrogen-containing heterocycles with a large molecular weight in algae pyrolysis bio-oil . Fourier transform infrared (FTIR) spectroscopy or nuclear magnetic resonance methods may result in more useful information on the bulk properties of the large molecular compounds, but these methods are not able to distinguish individual components. , As a result, the composition of NCCs with less volatile compounds and a high molecular weight are still unclear.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Characteristics and Evolution of Nitrogen in the Heavy Components of Algae Pyrolysis Bio-Oil

Xiong

Zeng

et al. 2021

Environ. Sci. Technol.

View full text Add to dashboard Cite

Algae pyrolytic bio-oil contains a large quantity of Ncontaining components (NCCs), which can be processed as valuable chemicals, while the harmful gases can also be released during bio-oil upgrading. However, the characteristics of NCCs in the bio-oil, especially the composition of heavy NCCs (molecular weight ≥200 Da), have not been fully studied due to the limitation of advanced analytical methods. In this study, three kinds of algae rich in lipids, proteins, and carbohydrates were rapidly pyrolyzed (10−25 °C/s) at different temperatures (300−700 °C). The biooil was analyzed using a Fourier transform ion cyclotron resonance mass spectrometer equipped with electrospray ionization, and the characteristics and evolution of nitrogen in heavy components were first obtained. The results indicated that the molecular weight of most heavy NCCs was distributed in the 200−400 Da range. N 1−3 compounds account for over 60% in lipid and protein-rich samples, while N 0 and N 4 components are prominent in carbohydrate-rich samples. As temperature increases, most NCCs become more aromatic and contain less O due to the strong Maillard and deoxygenation reactions. Moreover, the heavier NCCs were promoted to form lighter compounds with more nitrogen atoms through decomposition (mainly denitrogenation and deoxygenation). Finally, some strategies to deal with the NCCs for highquality bio-oil production were proposed.a Calculated by difference. Carbohydrates = 100%moisture−ash− lipid−proteins.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Characteristics and Evolution of Nitrogen in the Heavy Components of Algae Pyrolysis Bio-Oil

Xiong

Zeng

et al. 2021

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

Production and modifications of biochar to engineered materials and its application for environmental sustainability: a review

Ravindiran,

Rajamanickam,

Janardhan

et al. 2024

Biochar

View full text Add to dashboard Cite

Biochar, a carbon-rich material produced from biomass waste through thermal conversion, holds great environmental promise. This article offers a comprehensive overview of the various feedstocks used in biochar production, the different types of thermal degradation processes, biochar characterization, properties, modifications to engineered materials, and their applications in the environment. The quality of biochar, including surface area, pore size and volume, and functional group formation, is significantly influenced by the specific conditions under which thermal conversion takes place. Each of the diverse processes employed to produce biochar yields a distinct set of properties in the final product. In recent years, biochar has gained widespread recognition and utilization in diverse fields such as wastewater treatment, carbon sequestration, reduction of greenhouse gas emissions, biogas production, catalysis in biofuel industries, construction, and soil enhancement. In summary, biochar is a promising environmental mitigation tool to achieve a sustainable environment. In addition to its benefits, the application of biochar presents several challenges, including the selection of feedstocks, methods of biochar production, modifications to biochar, the properties of biochar, and the specific applications of biochar. The current review summarizes factors that could lead to significant advancements in future applications. Graphical Abstract

show abstract

Plant biomass material in engineering application

Taipabu,

Viswanathan,

2024

Plant Biomass Applications

View full text Add to dashboard Cite

Comparative study of different algae pyrolysis using photoionization mass spectrometry and gas chromatography/mass spectrometry

Cited by 26 publications

References 54 publications

Characteristics and Evolution of Nitrogen in the Heavy Components of Algae Pyrolysis Bio-Oil

Characteristics and Evolution of Nitrogen in the Heavy Components of Algae Pyrolysis Bio-Oil

Production and modifications of biochar to engineered materials and its application for environmental sustainability: a review

Plant biomass material in engineering application

Contact Info

Product

Resources

About