Analytical pyrolysis reaction characteristics of Porphyra tenera

作者：Kim Young Min; Han Tae Uk; Lee Boram; Watanabe Atsushi; Teramae Norio; Kim Jeong Hoon; Park Young Kwon; Park Hyunwoong; Kim Seungdo^*

来源：Algal Research-Biomass Biofuels and Bioproducts, 2018, 32: 60-69.

DOI：10.1016/j.algal.2018.03.003

• Porphyra tenera
• Toluene
• Kinetic analysis
• Evolved gas analysis
• Multi-shot pyrolysis

The non-isothermal pyrolysis of red algae (Porphyra tenera) was studied via thermogravimetric (TG) analysis in combination with two types of analytical pyrolyzer-gas chromatography/mass spectrometry (Py-GC/MS) techniques, namely, evolved gas analysis (EGA)-MS and multi-shot Py-GC/MS. The TG and model-free kinetic analyses revealed that the pyrolysis of P. tenera proceeded via the independent decomposition of carbohydrates, proteins, and lipids. Differential TG and EGA-MS indicated the existence of three decomposition temperature regions. In the first temperature region (< 300 degrees C), carbohydrates were mainly decomposed. Large amounts of pyrolyzates of proteins and lipids such as toluene, phenols, aromatic amino acids, and hexadecanoic acid were produced in the second temperature region (301-380 degrees C). In the third region (> 380 degrees C), large amounts of aromatic hydrocarbons and alkanes were obtained by the secondary cracking of the pyrolyzates of proteins and lipids.

• 出版日期2018-6