High-speed stop in a fischer-tropsch process
OwnerThomas Joris REMANS, Wilhelmus Johannes Franciscus SCHOLTENinventors
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Abstract
A process for carrying out a high-speed stop in a Fischer-Tropsch process which comprises providing a feed comprising CO and H2 to a fixed bed reactor comprising a Fischer-Tropsch catalyst, the reactor being at reaction temperature and pressure, the gaseous hourly space velocity in the reactor being in the range from 500 to 10000 Nl/l/h, and withdrawing an effluent from the reactor, wherein the high-speed stop is effected by blocking provision of H2 to the reactor while providing CO to the reactor, and withdrawing gaseous reactor content from the reactor, and wherein during the high-speed stop CO is added in an amount of 5-80 Nl/l/h.
Claims20
A process for carrying out a high-speed stop in a Fischer-Tropsch process which comprises providing a feed comprising CO and H2 to a fixed bed reactor comprising a Fischer-Tropsch catalyst, the reactor being at reaction temperature and pressure, the gaseous hourly space velocity in the reactor being in the range from 500 to 10000 Nl/l/h, and withdrawing an effluent from the reactor;
- wherein the high-speed stop is effected by blocking provision of H2 to the reactor while providing CO to the reactor, and withdrawing gaseous reactor content from the reactor;
- and wherein during the high-speed stop CO is added in an amount of 5-80 Nl/l/h.
A process for carrying out a high-speed stop in a Fischer-Tropsch process which comprises providing a feed comprising CO and H2 to a fixed bed reactor comprising a Fischer-Tropsch catalyst, the reactor being at reaction temperature and pressure, the gaseous hourly space velocity in the reactor being in the range from 500 to 10000 Nl/l/h, and withdrawing an effluent from the reactor;
- wherein the high-speed stop is effected by blocking provision of H2 to the reactor while providing CO to the reactor, and withdrawing gaseous reactor content from the reactor;
- wherein during the high-speed stop CO is added in an amount of 5-80 Nl/l/h;
- and
- wherein the CO provided during the high-speed stop originates from a source different from the feed comprising CO and H2.
A process for carrying out a high-speed stop in a Fischer-Tropsch process which comprises providing a feed comprising CO and H2 to a fixed bed reactor comprising a Fischer-Tropsch catalyst, the reactor being at reaction temperature and pressure, the gaseous hourly space velocity in the reactor being in the range from 500 to 10000 Nl/l/h, and withdrawing an effluent from the reactor;
- wherein the high-speed stop is effected by blocking provision of H2 to the reactor while providing CO to the reactor, and withdrawing gaseous reactor content from the reactor;
- wherein during the high-speed stop CO is added in an amount of 5-80 Nl/l/h;
- and
- wherein the CO is provided from a storage vessel containing a CO-containing gas with a CO content of at least 80 mol. %, the balance consisting of a gas which is inert under Fischer-Tropsch reaction conditions.
Dependencies are inferred from the claim text.