NOVELTY - A biomass pyrolysis process involves (a) providing heated container that encloses moving bed granular filter; (b) heating granular heat carrier in heated container to produce heated granular heat carrier that is conveyed to a pyrolysis reactor; (c) pyrolyzing a biomass feedstock in pyrolysis reactor to produce pyrolysis vapors; and (d) conveying pyrolysis vapors out of pyrolysis reactor and through moving bed granular filter to separate residual entrained char particles, to form low-particulate pyrolysis vapors and solid stream having char and heated granular heat carrier of step (a).    USE - In a biomass pyrolysis process (claimed) for producing transportation fuel.    ADVANTAGE - The Process is fast pyrolysis process; minimizes the delay between production of the pyrolysis vapors and catalytic upgrading to products that are fungible with petroleum-derived transportation fuels; allows rapid filtration/removal of solid char particles from raw pyrolysis vapors by immediately directing the vapors through a moving bed granular filter; and rapidly stabilize raw pyrolysis vapors to prevent uncontrolled polymerization, while also quickly and efficiently removing entrained char particulates and associated catalyst poisons to prevent them from contacting the stabilizing or upgrading catalysts.    DETAILED DESCRIPTION - A biomass pyrolysis process, involves (a) providing a heated container that encloses a moving bed granular filter, where the moving bed granular filter comprises a granular heat carrier; (b) heating the granular heat carrier in the heated container to produce a heated granular heat carrier that is conveyed to a pyrolysis reactor; (c) pyrolyzing a biomass feedstock in the pyrolysis reactor to produce pyrolysis vapors comprising a residual amount of entrained char particles, where rapid heating of the biomass feedstock is facilitated by contact with the heated granular heat carrier; and (d) conveying the pyrolysis vapors out of the pyrolysis reactor and through the moving bed granular filter to separate at least a portion of the residual entrained char particles, to produce low-particulate pyrolysis vapors and a solid stream comprising char and the heated granular heat carrier of step (a). An INDEPENDENT CLAIM is included for a biomass pyrolysis system, comprising a pyrolysis reactor having an inlet for a mixture including a granular heat carrier and at least one catalyst, the inlet positioned to contact the mixture with a biomass feedstock to form pyrolysis vapors comprises entrained char particles; at least one auger that is operable to facilitate unidirectional movement of the mixture and the biomass feedstock through the pyrolysis reactor an outlet for the pyrolysis vapors; a container operable to heat the its contents to a temperature greater than 350 degrees C, the container comprises an inlet that is operable to allow entry of pyrolysis vapors and is connected to the outlet of the pyrolysis reactor, a moving bed granular filter that is fully enclosed by the container, where the moving bed granular filter comprises a mixture that includes granular heat carrier and at least one catalyst, where the inlet is operable to receive and direct the pyrolysis vapors through the moving bed granular filter, where the moving bed granular filter is operable to retain at least a portion of the char particles and to catalytically upgrade the pyrolysis vapors to produce low-particulate upgraded pyrolysis vapors; a first outlet for the mixture and char particles retained by the moving bed granular filter, a second outlet for the low-particulate upgraded pyrolysis vapors that is connected to the inlet of the pyrolysis reactor; at least one additional upgrading catalyst operable to contact the low-particulate upgraded pyrolysis vapors and produce a hydrocarbon mixture fungible with a petroleum-derived transportation fuel, and/or a hydrocarbon transportation fuel component.