Biomass injection into fluid bed catalytic pyrolysis reactor

A process for catalytic pyrolysis of biomass in a fluidized bed reactor, the process comprising:

• a. pneumatically injecting a biomass feed with a carrier gas at a velocity of from 5 to 40 m/s via a pneumatic injection line into fluidized catalyst in at least one mixing zone within at least one lift pipe extending from, and in fluid communication with, the fluidized bed reactor, wherein the at least one mixing zone is outside the fluidized bed reactor, and wherein the biomass feed in the pneumatic injection line has a temperature of no more than 150° C.,
• b. wherein each lift pipe is fitted with a distributor at its bottom end, with a mushroom type termination device mounted on top, and with a catalyst injection line being connected to the lift pipe below the pneumatic injection line, and
• c. injecting catalyst through the catalyst injection line into the at least one mixing zone and maintaining a catalyst/biomass mixture flowrate ratio (C/B) of from 4 to 40 downstream from the point of biomass injection into the at least one mixing zone.