## 3 Results
\begin{table}
\begin{tabular}{c c c c c c c c c c c c c c c c c} \hline \hline \multicolumn{1}{c}{**Temp.**} & \multicolumn{10}{c}{**Hydrocarbons (wt%)**} & \multicolumn{10}{c}{**Inorganic Compounds (wt%)**} & \multicolumn{1}{c}{**\(\Sigma\) \%**} \\ \cline{2-13} \multicolumn{1}{c}{**(\({}^{\circ}\)C)**} & **CH\({}_{4}\)** & **C\({}_{2}\)H\({}_{6}\)** & **C\({}_{2}\)H\({}_{4}\)** & **C\({}_{3}\)H\({}_{8}\)** & **C\({}_{3}\)H\({}_{6}\)** & **C\({}_{4}\)H\({}_{10}\)** & **C\({}_{4}\)H\({}_{8}\)** & **C\({}_{4}\)H\({}_{6}\)** & **C\({}_{5+}\)** & **H\({}_{2}\)** & **O\({}_{2}\)** & **N\({}_{2}\)** & **CO** & **CO\({}_{2}\)** & **Other** \\ \hline
210 & 0.19 & 0.09 & 0.13 & 0.04 & 0.04 & 0.03 & 0.19 & 0.01 & 0.05 & 10.00 & 0.20 & 74.10 & 1.82 & 9.71 & 3.40 & 100 \\
320 & 1.86 & 0.66 & 0.47 & 0.27 & 0.27 & 0.14 & 0.68 & 0.08 & 0.32 & 29.90 & 0.40 & 47.00 & 3.11 & 9.98 & 4.86 & 100 \\
425 & 10.91 & 3.57 & 1.40 & 1.33 & 1.41 & 0.52 & 1.96 & 0.28 & 1.58 & 41.85 & 0.05 & 13.70 & 6.51 & 11.14 & 3.79 & 100 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Gas composition, postconsumer material, 425 \({}^{\circ}\)C.  
\begin{table}
\begin{tabular}{c c c c c c c c c c c c c c c c c} \hline \hline \multicolumn{1}{c}{**Temp. **} & \multicolumn{10}{c}{**Hydrocarbons (wt%)**} & \multicolumn{10}{c}{**Inorganic Compounds (wt%)**} & \multicolumn{1}{c}{**\(\Sigma\) \%**} \\ \cline{2-13} \multicolumn{1}{c}{**(\({}^{\circ}\)C)**} & **CH\({}_{4}\)** & **C\({}_{2}\)H\({}_{6}\)** & **C\({}_{2}\)H\({}_{4}\)** & **C\({}_{3}\)H\({}_{8}\)** & **C\({}_{3}\)H\({}_{6}\)** & **C\({}_{4}\)H\({}_{10}\)** & **C\({}_{4}\)H\({}_{8}\)** & **C\({
Methane is the main hydrocarbon generated during the process. Preconsumer waste generated more methane than postconsumer WPBs. The highest amount of this gas was generated at the highest temperature for both series. More carbon oxide was generated during series 2. The CO content increased at higher temperatures for all tests except in series 1 at 425 \({}^{\circ}\)C, where its concentration slightly decreased. Figure 4: Methane content at different max. temperatures during series 1 and 2. Figure 5: Carbon oxide content at different max. temperatures during series 1 and 2. Figure 6: Nitrogen content at different max. temperatures during series 1 and 2. The nitrogen content decreased with temperature during both series. The minimum level (approx. 10%) has been reached by the end of each process. The level of nitrogen was high at the beginning of the process, which was caused by the presence of this gas in the atmospheric air. As the process proceeded and the gases were generated, nitrogen was removed from the reactor. In order to confirm that the gas quality as a fuel increases with the max. process temperature, the calorific value was calculated according to the equation:  
\[CV=\sum_{i=1}^{n}\mu_{i}CV_{i} \tag{1}\]  
where:  
_CV_--calorific value of the gas generated during pyrolysis,  
M--mass fraction of the gas component,  
_CV_--calorific value of the gas component. The calculated calorific values of the gases for series 1 and 2 at three temperatures--at the beginning of the process, during the process, and after reaching the maximum temperature--are presented in Tables 8 and 9, respectively. The calorific value of the gases increased with the duration of the process and the maximum process temperature. The highest calorific values for both series could be observed at the maximum process temperatures. The highest value was obtained during the pyrolysis of mixed postconsumer waste. The highest quality of the gaseous products was observed for the tests performed at the highest maximum temperature on the postconsumer waste. Such results suggest that, when considering a potential technology for WPB processing with the production of a gaseous fuel, the most favorable conditions for the production of gases would be at higher temperatures. However, it needs to be stressed that this maximum calorific value cannot be maintained during the whole process.