Chemistry: fischer-tropsch processes; or purification or recover – Group viii metal containing catalyst utilized for the...
Reexamination Certificate
2009-01-02
2010-02-16
Parsa, Jafar (Department: 1621)
Chemistry: fischer-tropsch processes; or purification or recover
Group viii metal containing catalyst utilized for the...
C518S700000, C518S705000
Reexamination Certificate
active
07662865
ABSTRACT:
The subject of the invention is a process for the synthesis of hydrocarbons based on a synthesis gas type feedstock in which said synthesis gas is brought into contact with a catalyst in a reactor under Fischer-Tropsch synthesis conditions and in which the partial pressure of water is controlled in order to keep it below a critical value ppH2O-limitdefined by the formula: ppH2Olimit=exp(−7751/dp·T)·Ps(T) where T is the reaction temperature in K, dpis the average diameter of the catalyst pores in nm, determined by nitrogen adsorption-desorption (BJH method), Ps(T) is the saturating water vapour pressure at temperature T, in bar.
REFERENCES:
patent: 5258411 (1993-11-01), Behrmann et al.
Hugues Francois
Marion Marie-Claire
Roy-Auberger Magalie
ENI S.p.A.
Institut Francais du Pe'trole
Millen White Zelano & Branigan P.C.
Parsa Jafar
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