A sustainable thermochemical conversion of animal biomass to N-heterocycles

The production of high-valued organonitrogen chemicals, especially N-heterocycles, requires artificial N 2 fixation accompanied by the consumption of fossil resources. To avoid the use of these energy- and resource-intensive processes, we develop a sustainable strategy to convert nitrogen-rich anima...

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Bibliographic Details
Published inCollagen and Leather Vol. 5; no. 1; pp. 1 - 11
Main Authors Tang, Yang, Xiao, Xiao, Zhang, Chaojun, Wang, Xiaoling, Guo, Junling, Liao, Xuepin
Format Journal Article
LanguageEnglish
Published Singapore Springer Nature Singapore 01.12.2023
Springer Nature B.V
SpringerOpen
Subjects
Aluminum oxide
Amides
Amines
Amino acids
Ammonia
Animal biomass
Biomass
Chemistry and Materials Science
Glycine
Materials Engineering
Materials Science
N-heterocycles
Nitriles
Nitrogen
Nitrogen fixation
Nitrogenation
Nitrogenous chemicals
Thermochemical conversion
Animal biomass
Nitrogen fixation
Thermochemical conversion
N-heterocycles
Nitrogenous chemicals
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Summary:The production of high-valued organonitrogen chemicals, especially N-heterocycles, requires artificial N 2 fixation accompanied by the consumption of fossil resources. To avoid the use of these energy- and resource-intensive processes, we develop a sustainable strategy to convert nitrogen-rich animal biomass into N-heterocycles through a thermochemical conversion process (TCP) under atmospheric pressure. A high percentage of N-heterocycles (87.51%) were obtained after the TCP of bovine skin due to the abundance of nitrogen-containing amino acids (e.g., glycine, proline, and l -hydroxyproline). Animal biomass with more diverse amino acid composition (e.g., muscles) yielded higher concentrations of amines/amides and nitriles after TCP. In addition, by introducing catalysts (KOH for pyrrole and Al 2 O 3 for cyclo-Gly–Pro) to TCP, the production quantities of pyrrole and cyclo-Gly–Pro increased to 30.79 mg g −1 and 38.88 mg g −1 , respectively. This approach can be used to convert the significant animal biomass waste generated annually from animal culls into valued organonitrogen chemicals while circumventing NH 3 -dependent and petrochemical-dependent synthesis routes. Graphical Abstract
ISSN:2097-1419
2731-6998
2524-7859
DOI:10.1186/s42825-022-00109-z