Method and apparatus for starting up an apparatus for steam reforming

An apparatus for steam reforming comprising:

• a reactor that is configured to produce hydrogen;
• a condensate separator, wherein the reactor is connected to the condensate separator in such a way to conduct a gas mixture that is produced from the reactor into the condensate separator;
• a condensate stripper, wherein the condensate separator and the condensate stripper are connected to each other in such a way to conduct condensate that is separated out in the condensate separator into the condensate stripper;
• and
• a steam boiler, wherein the condensate separator and the steam boiler are connected to each other in such a way to conduct cleaned condensate from the condensate stripper into the steam boiler, wherein the steam boiler is connected to the reactor in a steam-conducting manner, wherein the steam boiler is connected to the condensate stripper in a steam-conducting manner,
• wherein a boiler water feed line of the steam boiler is connectable to the condensate stripper in a liquid-conducting manner, wherein a supply from the boiler water feed line is at a same location of the condensate stripper as a supply of the condensate from the condensate separator.