C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 65/00 (2006.01) B01J 8/22 (2006.01) C10G 45/08 (2006.01) C10G 45/16 (2006.01) C10G 65/04 (2006.01)
Patent
CA 2054681
2054681 9013612 PCTABS00002 A hydrodesulphurisation process is provided for continuously effecting hydrodesulphurisation of a liquid sulphur-containing hydrocarbon feedstock (5) which comprises: (a) providing a hydrodesulphurisation zone maintained under hydrodesulphurisation conditions and comprising a column reactor (1) having a plurality of reaction trays (2) therein mounted one above another, each tray defining a respective reaction stage adapted to hold a predetermined liquid volume and a charge of a sulphided solid hydrodesulphurisation catalyst therein, liquid downcomer means (8) associated with each reaction tray adapted to allow liquid to pass down the column reactor from that tray but to retain solid catalyst thereon, and gas upcomer means (4) associated with each reaction tray adapted to allow gas to enter that tray from below and to agitate the mixture of liquid and catalyst on that tray; (b) supplying liquid sulphur-containing hydrocarbon feedstock (7) to the uppermost one of said plurality of reaction trays; (c) supplying hydrogen-containing gas (3) below the lowermost one of said plurality of reaction trays; (d) allowing liquid to pass downward through the column reactor from tray to tray; (e) allowing hydrogen-containing gas to pass upward through the column reactor from tray to tray; (f) recovering from the uppermost one of said plurality of reaction trays and off-gas (17) containing H2S produced by hydrodesulphurisation; and (g) recovering from the lowermost one of said plurality of reaction trays a liquid hydrocarbon product of reduced sulphur content (40).
Dennis Alan J.
Harrison George E.
Mckinley Donald H.
Davy Process Technology Limited
Ridout & Maybee Llp
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