Complementary chemical characterization of distillates obtained from industrial hemp hurds by thermal processing
| Autor: | Jorma Heikkinen, Mikko Selenius, Teemu Vilppo, Jouko Vepsäläinen, Kaisa Raninen, Reijo Lappalainen, Olavi Raatikainen, Laura Tomppo, Ayobami Salami |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Materials science 010405 organic chemistry Mass spectrometry Torrefaction 01 natural sciences 0104 chemical sciences law.invention Chemical engineering law Scientific method Biochar Fourier transform infrared spectroscopy Spectroscopy Agronomy and Crop Science Pyrolysis Distillation 010606 plant biology & botany |
| Zdroj: | Industrial Crops and Products. 155:112760 |
| ISSN: | 0926-6690 |
| Popis: | This study focused on spectroscopic characterization of slow pyrolysis distillates from three different hemp hurd variates of industrial hemp (Cannabis sativa L). Raw distillates were collected at drying, torrefaction and pyrolysis stage of the slow pyrolysis process starting from room temperature up to the maximum operating temperature of 350 °C. Complementary chemical characterization of the hemp hurd distillate fractions was achieved using Fourier transform infrared (FTIR) spectroscopy, 1D and 2D NMR spectroscopy, comprehensive two-dimensional gas chromatography-mass spectrometry (2D GC–MS) and liquid chromatography–high resolution mass spectrometry (LC–HRMS). These analyses provided information on the concentration of main chemical constituents of distillates, detected valuable, volatile, semivolatile and nonvolatile compounds and their chemical nature as indicated by functional groups. This study reveals the possibility of optimizing the use of hemp hurds as high-value products by utilizing slow pyrolysis for biochar and further processing for distillates. |
| Databáze: | OpenAIRE |
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