Sentence examples for methane was observed from inspiring English sources

Evolution of methane was observed in the absence of oxygen for thermal reaction at temperature above 623 K.

Evidence for direct conversion of substrate to methane was observed with two of the industrial wastewater samples (IW-1 and IW-3).

Although these two nutrients could be used as carbon sources, negligible amount of methane was observed from control reactors without coal.

In particular, a marked enhancement in the reaction rate of CO2-reforming of methane was observed by the modification of a low concentration Rh to the NiCe203Pt catalyst.

Rabelo et al. [ 17] revealed that the highest production of methane was observed in pretreatments with the highest solid concentration of lime; that is, 8%, a value that is 32%and56%6% higher than that of 6% and 4% lime, respectively.

Whereas the catalyst alone is only active above 300 °C, plasma induced partial oxidation of methane is observed in the entire temperature range investigated (100 400 °C).

An increase in methane purification was observed when the amount of methane in the feed gas was lowered.

Upon addition of lanthanum an increase of 4 5%% methane conversion was observed, indicating the presence of lanthanum, enhanced reactions associated with methane.

The methane yield increased immediately for reactor A. However, a slower recovery of the methane yield was observed for reactors B and C, which might indicate that the higher temperature disturbances (45°C and 55°C) had a more negative impact on the stability of the biogas reactors.

Table 3 shows the resulting initial rates of methane depletion and percentage of total methane removed during the 11-day testing period, after which no noticeable change in methane concentrations was observed.

For the optimised SPCE/OPLS-UA potential no methane hydrate was formed over a temperature range of 230 260 K, while for the TSE model the formation of methane hydrate was observed at 230 and 240 K.