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    Optimum integration of fischer-tropsch synthesis and syngas production
    11.
    发明专利
    Optimum integration of fischer-tropsch synthesis and syngas production 未知

    公开(公告)号：AU2031501A

    公开(公告)日：2001-06-18

    申请号：AU2031501

    申请日：2000-12-01

    Applicant: STATOIL ASA

    Inventor： SCHANKE DAG ,  HANSEN ROGER ,  SOGGE JOSTEIN ,  HOFSTAD KARINA HEITNES ,  WESENBERG MARGRETE H ,  RYTTER ERLING

    IPC: C01B3/38 ,  C07C1/04 ,  C10G2/00 ,  C01B3/36

    Abstract: A method is described for conversion of natural gas or other fossil fuels to higher hydrocarbons, comprising the following steps: a) reaction of natural gas with steam and oxygenic gas in at least one reforming zone in order to produce a synthesis gas consisting primarily of hydrogen and CO, in addition to some carbon dioxide; b) passing said synthesis gas to a Fisher-Tropsch reactor in order to produce a crude synthesis stream consisting of lower hydrocarbons, water and non-converted synthesis gas; c) separation of said crude synthesis stream in a recovery zone, into a crude product stream mainly containing heavier hydrocarbons, a water stream and a tail gas stream mainly containing the remaining constituents; which is charaterized in that the method also comprises the following steps; d) stream reformation of at least part of the tail gas in a separate steam reformer; e) introduction of the reformed tail gas into the gas stream before this is led into the Fischer-Tropsch reactor.

    A PLANT AND A METHOD FOR INCREASED OIL RECOVERY
    12.
    发明专利
    A PLANT AND A METHOD FOR INCREASED OIL RECOVERY 未知

    公开(公告)号：CA2509945C

    公开(公告)日：2011-10-11

    申请号：CA2509945

    申请日：2003-12-12

    Applicant: STATOIL ASA

    Inventor： OLSVIK OLA ,  RYTTER ERLING ,  SOGGE JOSTEIN ,  STENSEN JAN AGE

    IPC: E21B43/16 ,  E21B43/40 ,  F25J3/04

    Abstract: A method for increasing oil recovery from an oil reservoir by injection of gas into the reservoir, is described. The method comprises separation of air into an oxygen-rich fraction and a nitrogen-rich fraction, reformation of natural gas together with oxygen to produce a synthesis gas for production of methanol or other oxygenated hydrocarbons or higher hydrocarbons. The raw synthesis products and a waste gas from the synthesis are separated, and the nitrogen-rich fraction and at least a part of the waste gas are injected into the oil reservoir to increase the oil recovery from the reservoir. A plant for performing the method is also described.

    METHOD FOR INCREASING THE PRODUCTION IN AN EXISTING PROCESSING PLANT
    13.
    发明专利
    METHOD FOR INCREASING THE PRODUCTION IN AN EXISTING PROCESSING PLANT 未知

    公开(公告)号：MY132097A

    公开(公告)日：2007-09-28

    申请号：MYPI20022410

    申请日：2002-06-26

    Applicant: STATOIL ASA

    Inventor： HANSEN ROGER ,  SOGGE JOSTEIN ,  VELAND BJORN JARLE ,  OLSVIK OLA

    IPC: C07C27/00 ,  C07C29/151 ,  C07C29/152

    Abstract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