Industrial process modules, machines and apparatus for processing gases; mechanical and electrical equipment (machines) for the production, processing, compression and/or liquefaction of natural gas, namely, gas and steam turbines, electric motors, compressors, turbo expanders, pumps, valves, liquid and gas coolers, skid foundation, process coolers, process module structures and assembly, vessels, gas separators, piping supports and interconnections, controls, sensors, diagnostic apparatus, cabinets, control rooms, instrumentation and monitors; heavy hydrocarbon removal systems (machines) and nitrogen rejection units.