A method for start-up and operation of a Fischer-Tropsch reactor

摘要

The invention relates to a method for start-up and operation of a Fischer-Tropsch reactor comprising the following sequential steps:
(±) providing a reactor with a fixed bed of reduced Fischer-Tropsch catalyst comprising cobalt as catalytically active metal wherein the catalyst has an initial intrinsic activity;
(b) deactivating part of the catalyst by providing part of the catalyst with a form of carbon;
(c) supplying a gaseous feed stream comprising carbon monoxide and hydrogen in a ratio in the range of from 0.5:1 to 2:1 to the reactor and converting carbon monoxide and hydrogen supplied with the gaseous feed stream to the reactor into hydrocarbons at a reaction temperature and reaction pressure.