| 摘要 |
<p>A process enables regeneration of a Fischer-Tropsch catalyst in situ in a Fischer-Tropsch synthesis reactor (55) for generating hydrocarbons from a synthesis gas containing hydrogen and carbon monoxide. The process can also be used to suppress the effect of a contaminant during use of the reactor, which is a Fischer- Tropsch synthesis reactor for generating hydrocarbons from a synthesis gas containing hydrogen and carbon monoxide, the reactor containing a Fischer-Tropsch catalyst and being operable at a temperature of 210° C with synthesis gas having a hydrogen:CO ratio less than 2.0. The process comprises the steps: (a) continuing to pass synthesis gas through the reactor (55), while increasing the hydrogen:CO ratio of the synthesis gas; (b) ensuring the temperature within the reactor (55) does not experience a thermal runaway; and (c) holding the reactor (55) at these operating conditions for at least one day, for example until the contaminant is no longer present. For suppressing the effect of contaminants, an optimum ratio may be identified between 2.0 and 2.5, at which productivity remains satisfactory.</p> |
