FISCHER-TROPSCH CATALYST ACTIVATION

• Main Authors: CLARKSON, Jay Simon, COE, Andrew James, WEST, John, PATERSON, Alexander, James, BAKER, Rob, MERCER, Richard J
• Format: Patent
• Language: English; French; German
• Published: 30.10.2024
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

The present disclosure relates generally to processes for activating Fischer-Tropsch synthesis catalysts. In particular, the application concerns a process for the activation of a Fischer-Tropsch synthesis catalyst, the process comprising: (i) contacting the catalyst with a first gaseous composition comprising at least 80% N2 at a pressure in the range of 2 barg to 20 barg at a temperature of no more than 150 °C; (ii) contacting the catalyst with a second gaseous composition comprising at least 80% H2 to form a H2/N2 gaseous composition with a H2:N2 molar ratio in the range of 0.2:1 to 2:1, resulting in a pressure in the range of 10 barg to 30 barg; (iii) increasing the temperature to a range of 220 °C to 260 °C; (iv) maintaining the catalyst at the conditions of step (iii) for a hold period in the range of 2 hr to 96 hr.