A process for producing a monalkylated aromatic product in a reactor having an alkylation zone in series with a transalkylation zone, the process comprising the following process steps: (a) introducing into the alkylation zone by two or more individual component feeds or one or more at least partly combined feeds, a reaction mixture comprising fresh and recycle aromatics and fresh olefin, wherein the molar ratio of aromatics to olefin in the mixture is in excess of 1:1, and also wherein the alkylation zone includes a suitable alkylation catalyst(s) comprising at least one solid acid oxide selected from the group consisting of MCM-22, MCM-36, MCM-49, MCM-56, MCM-58, MCM-68 and tungstate modified zirconia; (b) contacting the aromatic/olefin mixture with the alkylation catalyst(s) under sufficient alkylation conditions to react essentially all the olefins in the mixture to monoalkylated aromatics and polyalkylated aromatics, to produce an effluent from the alkylation zone comprising monoalkylated and polyalkylated aromatics and the unreacted aromatics; (c) introducing a feed into a transalkylation zone, the feed comprising the effluent from the alkylation zone, recycled polyalkylaromatics, and optionally additional aromatics, wherein the transalkylation zone includes a suitable transalkylation catalyst; (d) contacting the feed to the transalkylation zone with the transalkylation catalyst under sufficient transalkylation conditions to react at least a part of the aromatics and the polyalkylated aromatics in the feed to additional monoalkylated aromatics to produce an effluent from the transalkylation zone comprising the desired mono-alkylated aromatics and the unreacted aromatics and polyalkylated aromatics; and, (e) introducing the transalkylation zone effluent into a separation zone wherein the desired monoalkylated aromatics product is isolated and recovered and the unreacted aromatics and polyalkylated aromatics are recovered and recycled. (a) introducing into the alkylation zone by two or more individual component feeds or one or more at least partly combined feeds, a reaction mixture comprising fresh and recycle aromatics and fresh olefin, wherein the molar ratio of aromatics to olefin in the mixture is in excess of 1:1, and also wherein the alkylation zone includes a suitable alkylation catalyst(s) comprising at least one solid acid oxide selected from the group consisting of MCM-22, MCM-36, MCM-49, MCM-56, MCM-58, MCM-68 and tungstate modified zirconia; (b) contacting the aromatic/olefin mixture with the alkylation catalyst(s) under sufficient alkylation conditions to react essentially all the olefins in the mixture to monoalkylated aromatics and polyalkylated aromatics, to produce an effluent from the alkylation zone comprising monoalkylated and polyalkylated aromatics and the unreacted aromatics; (c) introducing a feed into a transalkylation zone, the feed comprising the effluent from the alkylation zone, recycled polyalkylaromatics, and optionally additional aromatics, wherein the transalkylation zone includes a suitable transalkylation catalyst; (d) contacting the feed to the transalkylation zone with the transalkylation catalyst under sufficient transalkylation conditions to react at least a part of the aromatics and the polyalkylated aromatics in the feed to additional monoalkylated aromatics to produce an effluent from the transalkylation zone comprising the desired mono-alkylated aromatics and the unreacted aromatics and polyalkylated aromatics; and, (e) introducing the transalkylation zone effluent into a separation zone wherein the desired monoalkylated aromatics product is isolated and recovered and the unreacted aromatics and polyalkylated aromatics are recovered and recycled.