Sentence examples for methane is present from inspiring English sources

However, because methane is present in much smaller concentrations (compared to carbon dioxide), its aggregate effect is less.

The methane is present both as patches of pure methane ice and as a frozen "solution" of methane in the nitrogen ice.

When methane is present in the gap between the electrodes, it will be defragmented into carbon and hydrocarbon species.

When no methane is present in the atmosphere, the C activity could be related to the C content of the compacts by the Boudouard equilibrium.

When methane is present in the atmosphere C contents after presintering can be associated to the C activity calculated from the C + 2H2 = CH4 equilibrium.

When methane is present in the reaction zone (e.g. it's formed as a transient product of LPG combustion) the following reaction is possible: CH 4 + Cl − > HCl + CH 3 (16).

As an example the partial oxidation of methane is presented in a steady-state fixed bed reactor as well as in a TAP (temporal analysis of products) reactor.

A bench-scale annular microchannel reactor (AMR) prototype with microchannel width of 0.3 mm and total catalyst length of 9.53 × 10−2 m active for the endothermic steam reforming of methane is presented.

The design and optimization of a pressure/vacuum swing adsorption process for the separation of ethane (C2) from residue gas (2.4 mol% ethane and the rest being methane) is presented.

Mike Stephenson, head of energy science at the British Geological Survey, said methane was present naturally in the UK's water supply in very small quantities and that it was unlikely fracking would result in the contamination of the water supply with methane, in part because there tended to be miles of rock between the shale and aquifers.

We found that microbial methane was present to up to 1600 mbsf, with thermogenic gas production probably not starting at depths shallower 2000 mbsf.