Abstract: A method of natural gas treatment including introducing a natural gas containing stream into a dryer unit, thereby producing a treated natural gas containing stream. Introducing the treated natural gas containing stream into a nitrogen rejection unit, thereby producing a further treated natural gas stream as a nitrogen rejection unit product. Splitting the nitrogen rejection unit product into at least two portions, introducing the first portion of the further treated natural gas stream into a reformer unit as first part of feed, and introducing a second portion of the further treated natural gas stream into the dryer unit as a regeneration stream, thereby producing a regeneration waste stream. Introducing at least a portion of the regeneration waste stream into the reformer unit as second part of feed.

Abstract: A welding torch having two relatively movable assemblies of elements and an annular chamber therebetween. One of the assemblies is provided with a scraping device to strip strongly adhering metal particles from the lower portion of the inert gas chamber of the torch, and a pneumatic system is operative to then remove these as well as the remaining weakly adhering particles from the entire length of the chamber.