Gas distributor for bubble column reactor

A bubble column reactor assembly (100) comprising:

• a reactor vessel (102) comprising a bottom end and a top end;
• a pre-distributor plate (114) for gas-liquid distribution, the pre-distributor plate (114) disposed in the reactor vessel (102) at a pre-determined height above the bottom end of the reactor vessel (102), wherein the pre-distributor plate (114) has a bottom surface and a top surface opposite to the bottom surface, wherein the bottom surface faces the bottom end of the reactor vessel (102);
• and
• a gas distributor (106) disposed below the pre-distributor plate (114) to receive gas for injecting gas into a liquid prior to distribution of gas and liquid by the pre-distributor plate (114), wherein the gas distributor (106) comprises:
• a common manifold (108) to receive the gas for distributing in the liquid;
• a plurality of ring-shaped pipes (202a, 202b, 202c, 202d) disposed along a length of the common manifold (108), wherein each of the plurality of ring-shaped pipes (202a, 202b, 202c, 202d) receive the gas from the common manifold (108);
• and
• a plurality of nozzles disposed along an outer circumference of each ring-shaped pipe of the plurality of ring-shaped pipes (202a, 202b, 202c, 202d) to inject gas into the reactor vessel and create vortexes for uniform distribution of gas in the liquid.