Single loop multistage fuel production

A process for making fuel from synthesis gas and a system for making fuel product are disclosed. The system comprises a first reactor (1) containing a first catalyst for converting synthesis gas to methanol and water; a second reactor (2) containing a second catalyst for converting methanol to dimethylether; third reactor (3) to containing a third catalyst for converting methanol and dimethylether to fuel and heavy gasoline; a fourth reactor (4) containing a fourth catalyst for converting the heavy gasoline to isoparaffins, naphthenes, and less substituted aromatics; a separator (5) for separating a product exiting the fourth reactor into a first stream containing fuel product, a second stream containing water, and a third stream containing unreacted synthesis gas; and a recycle stream to recycle a portion of the third stream to the first reactor.