TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The method (P1) further involves circulating at least a portion of the product stream to the high shear device. The at least a portion of the product stream circulated to the high shear device comprises Fischer-Tropsch catalyst. The at least a portion of the product stream circulated to the high shear device is substantially catalyst-free. The forming the dispersion involves subjecting mixture of the synthesis gas and the liquid phase to a shear rate of greater than 20000 s-1. The converting (P2) synthesis gas to greater than or equal to 2C hydrocarbons involves forming a fluid mixture comprises synthesis gas and a liquid containing hydrocarbons; subjecting the fluid mixture to a shear rate greater than 20000 s-1 to produce a dispersion of carbon monoxide and hydrogen gas bubbles in a continuous phase of the liquid; introducing the dispersion into a Fischer-Tropsch reactor from which a reactor product is removed; and removing a gas stream comprises unreacted synthesis gas and gaseous greater than or equal to 2C hydrocarbon products from a top portion of the reactor; and forming additional dispersion with at least a portion of the unreacted synthesis gas. Preferred Components: The synthesis gas is generated via natural gas reforming, and/or solids gasification. The solid is selected from coal, biomass, and bio-renewables. The reactor comprises Fischer-Tropsch catalyst. The high shear device comprises at least one rotor, and where the at least one rotor is rotated at a tip speed of at least 22.9 m/s (4500 feet/minutes) during formation of the dispersion. The high shear device produces a local pressure of 1034.2 MPa (150000 psi) at the tip of the at least one rotor. The energy expenditure of the high shear device is greater than 1000 W/m3. The average bubble diameter of the hydrogen and carbon monoxide gas bubbles in the dispersion is less than 5 mu m. The system further comprises a Fischer Tropsch reactor fluidly connected to an outlet of the high shear device and having an outlet for a product stream containing liquid hydrocarbons; and separator containing inlet connected to the outlet for the product stream and an outlet for a catalyst slurry stream from which at least a portion of the liquid hydrocarbons have been removed, and an outlet for a stream comprises liquid hydrocarbons. The high shear mixing device is configured for producing a dispersion of hydrogen and carbon monoxide gas bubbles in a liquid phase, where the dispersion has a mean bubble diameter of less than 5 nm. The reactor is a slurry reactor and where the product stream further comprises catalyst. The recycle line connecting the outlet for the catalyst slurry stream and an inlet to the Fischer-Tropsch reactor. The high shear device comprises at least two generators. The shear rate provided by one generator is greater than the shear rate provided by another generator. EXAMPLE - No suitable example given.