Process and plant for the conversion of oxygenates to c5+ hydrocarbons boiling in the jet fuel boiling range

Abstract

Process and plant for the conversion of oxygenates to hydrocarbons boiling in the jet fuel boiling range, comprising the steps of continuously: a) providing one or more feed streams of one or more oxygenate compounds; b) heating the one or more feed streams to an inlet temperature of a first set (R1) of one or more downstream adiabatic fixed bed reaction zones; c) introducing the one or more heated feed streams (1) into inlet of R1; d) converting in the one or more adiabatic fixed bed reaction zones of R1 the one or more heated feed streams in the presence of a conversion catalyst comprising a zeolite with a framework having a 10-ring pore structure, said 10-ring pore structure being a unidimensional (1D) pore structure, to a converted-oxygenate product comprising C5+ hydrocarbons of which at least 30 wt % are said hydrocarbons boiling in the jet fuel boiling range; wherein said 1-D pore structure is any of *MRE (ZSM-48), MTT (ZSM-23), TON (ZSM-22), or combinations thereof, the content of phosphorous (P) in the conversion catalyst is 0.1-3 wt %; e) withdrawing from the one or more adiabatic fixed bed reaction zones the converted-oxygenate product; f) determining at outlet of the one or more a diabatic fixed bed reaction zones an amount of one or more unconverted oxygenate com-pounds in the withdrawn converted-oxygenate product; g) continuously adjusting the in-let temperature of the one or more feed streams in step b to maintain a constant amount of the one or more unconverted-oxygenate compounds as determined in step f of between 10 and 4000 ppmv.

Dependencies are inferred from the claim text.