Degradation Characteristics Of A. Magnium Wood Lab Report
Results and discussion
Pyrolysis is one of the thermochemical technologies for converting biomass into energy and chemical products consisting of liquid bio-oil, solid biochar, and pyrolytic gas. It is derived from the complex conversion network of the three main components in biomass: cellulose, hemicellullose and lignin (Kan et al., 2016). Degradation Characteristics of A. magnium wood
The purpose of this research is to determine the main points of A. magnium thermal degradation, based on DTG data. The data of the thermal stability of biomass was analysed. The time derivative of the mass fraction and derivative second of the mass fraction are reported as functions of temperature in Fig. 1. since the A. mangium shows the typical thermal …show more content…
The significant effects fall to the right on this graph, with the biggest effects starting on the right. Factors B and AC also were significant but had a lesser effect. However, the interactions of AB, BC and ABC are insignificant with p-value >0.05, as shown in Fig. 3a. Analysis of variance (ANOVA) was performed and the ‘prob > F’ less than 0.05 indicates factors of heating rate, pyrolysis temperature and particle size are statistically significant. Pyrolysis temperature shows strong influences on producing bio-oil and is presented by F-value of 99.42. The F-values for particle size and heating rate were 37.06 and 5.29 respectively. The equation in terms of coded factors can be used to make predictions about the response for levels of each factor. The coded equation is useful for identifying the relative impact of the significant factors by comparing the factor coefficients (eq. …show more content…
GC-MS analysis was carried out in order to determine the component of organic compounds in the bio-oil produced at the nearly optimum pyrolysis conditions (reaction temperature 500oC, heating rate 10oC min-1 and particle size of 0.4mm). Fig. 6 shows the percentage of bio-oil from A. mangium pyrolysis. The compounds detected (see fig.7) have been grouped according to their chemical nature (see Table 3). Around 40 compounds have been identified in the liquid fraction, consistent with the previously reported studies (Bhattacharjee, 2016; Chen et al., 2016; Qu et al., 2011; Shen et al., (In Press)). The highest peak areas of the chemical compound analyzed by GC-MS correspond to cyclopropyl carbinol; 2-hydroxy-3-methyl-2-cyclopenten-1-one; 1,2-benzenediol; phenol, 4-ethyl-2-methoxy; 2-methoxy-4-methylphenol. In general, chemical composition was similar to the poplar wood sawdust reported by Gu et al.
Pyrolysis is one of the thermochemical technologies for converting biomass into energy and chemical products consisting of liquid bio-oil, solid biochar, and pyrolytic gas. It is derived from the complex conversion network of the three main components in biomass: cellulose, hemicellullose and lignin (Kan et al., 2016). Degradation Characteristics of A. magnium wood
The purpose of this research is to determine the main points of A. magnium thermal degradation, based on DTG data. The data of the thermal stability of biomass was analysed. The time derivative of the mass fraction and derivative second of the mass fraction are reported as functions of temperature in Fig. 1. since the A. mangium shows the typical thermal …show more content…
The significant effects fall to the right on this graph, with the biggest effects starting on the right. Factors B and AC also were significant but had a lesser effect. However, the interactions of AB, BC and ABC are insignificant with p-value >0.05, as shown in Fig. 3a. Analysis of variance (ANOVA) was performed and the ‘prob > F’ less than 0.05 indicates factors of heating rate, pyrolysis temperature and particle size are statistically significant. Pyrolysis temperature shows strong influences on producing bio-oil and is presented by F-value of 99.42. The F-values for particle size and heating rate were 37.06 and 5.29 respectively. The equation in terms of coded factors can be used to make predictions about the response for levels of each factor. The coded equation is useful for identifying the relative impact of the significant factors by comparing the factor coefficients (eq. …show more content…
GC-MS analysis was carried out in order to determine the component of organic compounds in the bio-oil produced at the nearly optimum pyrolysis conditions (reaction temperature 500oC, heating rate 10oC min-1 and particle size of 0.4mm). Fig. 6 shows the percentage of bio-oil from A. mangium pyrolysis. The compounds detected (see fig.7) have been grouped according to their chemical nature (see Table 3). Around 40 compounds have been identified in the liquid fraction, consistent with the previously reported studies (Bhattacharjee, 2016; Chen et al., 2016; Qu et al., 2011; Shen et al., (In Press)). The highest peak areas of the chemical compound analyzed by GC-MS correspond to cyclopropyl carbinol; 2-hydroxy-3-methyl-2-cyclopenten-1-one; 1,2-benzenediol; phenol, 4-ethyl-2-methoxy; 2-methoxy-4-methylphenol. In general, chemical composition was similar to the poplar wood sawdust reported by Gu et al.