Abstract: Phenol production process wherein:1) benzene is reacted with propene and isopropylic alcohol by contacting a catalyst based on a dealuminized Y zeolite with a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio ranging from 8 to 70, then the obtained product is fractionated into a first fraction comprising non converted benzene, a second fraction comprising cumene and a third fraction comprising polyisopropylbenzenes,2) said third fraction is reacted with benzene by contacting a catalyst based on a dealuminized Y zeolite with a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio ranging from 8 to 70 or based on a dealuminized mordenite with a total Si/Al atomic ratio ranging from 20 to 60, and cumene is collected,3) the obtained cumene is converted into a mixture of acetone and phenol,4) the obtained acetone is at least partly hydrogenized into an isopropylic alcohol which is then recycled at least partly to stage 1.

Abstract: The invention relates to a process for producing alkylaromatic hydrocarbons from natural gas containing methane, characterized in that it comprises the following three successive stages:1) thermal cracking of the natural gas with forming of hydrogen and C.sub.2.sup.30 hydrocarbons, particularly ethylene and acetylene,2) separation of the C.sub.2.sup.+ hydrocarbons, particularly of the ethylene and the acteylene, obtained at the end of stage 1), by cooled absorption in a solvent,3) conversion of the C.sub.2.sup.+ hydrocarbons from stage 2) into alkylaromatics.The obtained alkylaromatics can be used as a base for premium gasoline.