Catalytic pyrolysis of liquorice (Glycyrrhiza glabra L.) in a fixed-bed reactor: Effects of pyrolysis parameters on product yields and character was written by Aysu, Tevfik;Durak, Halil. And the article was included in Journal of Analytical and Applied Pyrolysis in 2015.COA of Formula: C4H5N3O This article mentions the following:
Pyrolysis of liquorice (Glycyrrhiza glabra L.) stalks were performed in a fixed-bed tubular reactor with (ZnO, FeCl3, K2CO3, Al2O3, Na2B4O7·10H2O) and without catalyst at three different temperatures (350, 450, 550 °C) with a constant heating rate of 40 °C/min. The amounts of bio-char, bio-oil and gas produced, as well as the compositions of the resulting bio-oils were determined by GC-MS. The effects of pyrolysis parameters on product yields were investigated. The results indicate that both temperature and catalysts effect the conversions of G. glabra L. into solid, liquid and gaseous products. The highest conversion of 74.50% and liquid yield of 34.35% were obtained with Na2B4O7·10H2O catalyst at 550 °C temperature when 0.224 > Dp > 0.150 mm particle sized samples and 100 mL/min of sweeping gas flow rate were used. Liquid products (bio-oils) obtained at 350 and 550 °C were analyzed by elemental anal. and gas chromatog./mass spectrometry (GC-MS). 133 and 148 different compounds were identified by GC-MS in the bio-oils obtained at 350 and 550 °C, resp. In the experiment, the researchers used many compounds, for example, 1H-Imidazole-4-carboxamide (cas: 26832-08-6COA of Formula: C4H5N3O).
1H-Imidazole-4-carboxamide (cas: 26832-08-6) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.COA of Formula: C4H5N3O
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem