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Steam reforming or steam methane reforming (SMR) is a method for producing syngas (hydrogen and carbon monoxide) by reaction of hydrocarbons with water. Commonly natural gas is the feedstock. The main purpose of this technology is often hydrogen production , although syngas has multiple other uses such as production of ammonia or methanol .
In a second stage, additional hydrogen is generated through the lower-temperature, exothermic, water-gas shift reaction, performed at about 360 °C (680 °F): CO + H 2 O → CO 2 + H 2. Essentially, the oxygen (O) atom is stripped from the additional water (steam) to oxidize CO to CO 2. This oxidation also provides energy to maintain the reaction.
A pure stoichiometric mixture may be obtained by water electrolysis, which uses an electric current to dissociate the water molecules: Electrolysis: 2 H 2 O → 2 H 2 + O 2 Combustion: 2 H 2 + O 2 → 2 H 2 O. William Nicholson was the first to decompose water in this manner in 1800.
It is, however, widely regarded as an ideal energy storage medium, due to the ease with which electricity can convert water into hydrogen and oxygen through electrolysis and can be converted back to electrical power using a fuel cell or hydrogen turbine. [3] There are a wide number of different types of fuel and electrolysis cells. [4]
Oct. 25—MORGANTOWN — A Hope Gas proposal to convert 629 farm-tap customers to propane has drawn significant opposition—with 31 letters of protest filed in six days. Some point out they, and ...
Power-to-gas (often abbreviated P2G) is a technology that uses electric power to produce a gaseous fuel. [1]Most P2G systems use electrolysis to produce hydrogen.The hydrogen can be used directly, [2] or further steps (known as two-stage P2G systems) may convert the hydrogen into syngas, methane, [3] or LPG. [4]