Mineral oils: processes and products – Refining – Sulfur removal
Reexamination Certificate
2005-07-22
2010-12-07
Parsa, Jafar (Department: 1621)
Mineral oils: processes and products
Refining
Sulfur removal
C423S230000, C423S244060, C423S244010, C518S713000
Reexamination Certificate
active
07846325
ABSTRACT:
The invention provides a process for the removal of COS and H2S from a synthesis gas stream comprising COS and H2S, the process having the steps of: removing H2S from a feed synthesis gas stream with a first solid adsorbent to obtain a first synthesis gas stream, converting COS in the first synthesis gas stream to H2S by contacting the first synthesis gas stream with a COS-hydrolysing catalyst in the presence of water in a hydrolysis zone to obtain a second synthesis gas stream depleted of COS and enriched in H2S; and removing H2S from the second synthesis gas stream by contacting the second synthesis gas stream with a second solid adsorbent in a H2S removal zone to obtain a third synthesis gas stream depleted of H2S and depleted of COS to very low levels.
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Herold Rudolf Henri Max
Kodde Adriaan Johannes
Last Thijme
Smit Cornelis Jacobus
Van Hardeveld Robert Martijn
Cutliff Yate K
Miller Leonard P.
Parsa Jafar
Shell Oil Company
Stewart Charles W.
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