On average Detroit's firefighters, police officers and other city employees receive pension checks that are similar or slightly smaller in size than the national average of $30,000 a year, according to pension experts.
Steam-Methane Reforming. Most hydrogen produced today in the United States is made via steam-methane reforming, a mature production process in which high-temperature steam (700Â°Câ1,000Â°C) is used to produce hydrogen from a methane source, such as natural gas.
When at the boiling temperature (which depends on the pressure) steam is called saturated. When above this temperature it is called superheated. At sea level and one atmosphere pressure (101KPa) steam boils at 100C (212F) which is then the saturated steam temperature for this pressure. Above this temperature it will be superheated.