TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The ATC process and GTL process share a gas and/or steam turbine used for power generation. The steam from the ATC process is superheated in the heat recovery section of the GTL process. The shared turbine is a combined cycle cogeneration unit. The ATC process and GTL process share power generation facilities, and a number of other pieces of equipment in addition, including control room and flare facilities. All paraffinic hydrocarbon feedstock to the ATC process is derived from products from the GTL process. The reforming of the methane-containing feed stream in step (b) involves catalytic steam reforming of methane. Prior to reforming in step (b), the methane-containing feed stream is pre-saturated with water by contacting the methane-containing feed stream with an aqueous effluent derived from the ATC process. The FT reactor comprises a catalyst comprising at least one metal selected from cobalt, nickel, iron, molybdenum, tungsten, thorium, ruthenium, rhenium or platinum. The FT reactor is operated at 160 - 350degreesC and a pressure 0 - 100 barg. The ATC and GTL processes are also co-located with a liquefied natural gas (LNG) process, and share at least some facilities with the LNG process (such as power generation facilities, flare facilities and/or control room facilities). The ATC process and the LNG process share refrigeration facilities. Preferred Components: The methane-containing feed stream is methane as such or methane in the form of natural gas. The catalyst comprises a Group VIII metal as its catalytic component. The first product stream comprises ethane and propane in admixture other hydrocarbons and/or other materials e.g. methane, nitrogen, carbon monoxide, carbon dioxide, steam or hydrogen. The first product stream comprises ethane and propane fed admixture with hydrogen. The product stream from the autothermal cracking process comprises olefins and synthesis gas and is treated to separate a second reactant stream comprising synthesis gas, from the olefins, in a refrigeration facility (where this refrigeration facility is shared with that on an LNG process).