Heat treated Fischer-Tropsch catalyst particles
AssigneeSasol Technology (Pty) Ltd
InventorsRafael Luis Espinoza, Philip Gibson, Jan Hendrik Scholtz
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Abstract
The invention provides heat treated self-supported precipitated α-Fe2O3-based Fischer-Tropsch catalyst particles. The catalyst particles are breakage resistant, thus inhibiting the formation of catalyst fines in the Fischer-Tropsch reactor, thereby maintaining the performance of the reactor and reducing the contamination of down stream processes and catalysts by the catalyst fines. The catalyst particles also exhibit superior synthesis performance in low temperature Fischer-Tropsch processes, e.g., slurry bed reactor processes for the production of wax and other syncrudes. The invention also provides a method for producing the particles and a process for using the particles.
Claims22
Self-supported precipitated α-Fe2O3-based Fischer-Tropsch catalyst particles for a Fischer-Tropsch slurry-bed process, which particles are produced according to a method comprising the step of:
- heat treating precipitated α-Fe2O3-based particles at a temperature of from 360° C. to 500° C., whereby self-supported precipitated catalyst particles consisting essentially of α-Fe2O3 are obtained.
Fischer-Tropsch catalyst particles, wherein the catalyst particles have an average primary particle size of from 2 nm to 4 nm, are self-supported, and consist essentially of α-Fe2O3.
Catalyst particles consisting essentially α-Fe2O3, wherein the catalyst particles are self-supported, wherein the catalyst particles have an average primary particle size of from 2 nm to 4 nm, and wherein the catalyst particles have an average observed Fischer-Tropsch activity in excess of 1.2 under low temperature Fischer-Tropsch operating conditions.
Dependencies are inferred from the claim text.