Slurry bed reactor
AssigneeConocoPhillips Company
InventorsJianping Zhang, Rafael L. Espinoza, Sergio Mohedas
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Abstract
A gas-agitated multiphase reactor system for the synthesis of hydrocarbons gives high catalyst productivity and reactor capacity. The system includes operating a multi-phase reactor in the well-mixed gas flow regime, with a Peclet number less than 0.175 and a single pass conversion ranging from 35% to 75%, wherein the inlet superficial gas velocity decreases with the decreasing of the reactor aspect ratio, and is preferably at least 20 cm/sec.
Claims50
A method for producing hydrocarbons from syngas in a three-phase system in which the catalyst comprises solid particles, comprising:
- (a) providing a reactor containing the catalyst;
- (b) feeding the syngas into the reactor so as to generate a liquid product;
- (c) operating the three-phase system in a well-mixed gas flow regime, with a gas Peclet number less than 0.175 and a single pass conversion between 35% and 75%;
- and
- (d) removing hydrocarbons from the reactor.
A method for operating a Fischer-Tropsch reactor system containing solid catalyst, gaseous feed, and gas and liquid products, comprising maintaining the rates of gaseous feed and liquid withdrawal such that the reactor system is maintained in a well-mixed gas flow regime described by
- UG≦0.175 DG/L
- where UG is the inlet superficial gas velocity, L is the expanded slurry bed height, and DG is the dispersion coefficient.
A hydrocarbon stream prepared by operating a Fischer-Tropsch reactor system containing solid catalyst, gaseous feed, and gas and liquid products in a well-mixed gas flow regime described by
- UG≦0.175 DG/L,
- where UG is the inlet superficial gas velocity, L is the expanded slurry bed height, and DG is the dispersion coefficient, wherein the is well-mixed gas flow regime is maintained by controlling the rates of gaseous feed and liquid withdrawal.
Dependencies are inferred from the claim text.