<a href="https://en.wikipedia.org/wiki/Haber_process" class="extiw" title="en:Haber process">Haber-Bosch process ammonia reactor</a>. Legend (anticlockwise from top) : pressure shell - heat exchanger - nitrogen and hydrogen input - ammonia output - catalyst
<a href="//commons.wikimedia.org/wiki/User:%D0%94.%D0%98%D0%BB%D1%8C%D0%B8%D0%BD" title="User:Д.Ильин">Д.Ильин</a>: translation
<a href="//commons.wikimedia.org/wiki/File:Ammoniakreaktor_MS.svg" title="File:Ammoniakreaktor MS.svg">File:Ammoniakreaktor MS.svg</a> by <a href="//commons.wikimedia.org/wiki/User:Majo_statt_Senf" title="User:Majo statt Senf">Majo statt Senf</a>