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.
Note that this gauge registers both the pressure within the boiler (the top arrow), and the extraction pressure (the bottom arrow). Both arrows should be within their green regions. We will typically run the boiler pressure (the pressure of the steam) at 1.5 Bars (see the gauge).