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    Method for the dissolution of amorphous dithiazines
    1.
    发明授权
    Method for the dissolution of amorphous dithiazines 有权

    公开(公告)号：US12129437B2

    公开(公告)日：2024-10-29

    申请号：US17494673

    申请日：2021-10-05

    申请人： CONOCOPHILLIPS COMPANY

    发明人： Jay Locklear ,  David P. Cope

    IPC分类号： C10G29/28 ,  C11D3/34

    CPC分类号： C10G29/28 ,  C11D3/34 ,  C10G2300/202 ,  C10G2300/207 ,  C10G2300/4075

    摘要： The invention relates to the dissolution of amorphous dithiazine (a-DTZ) or polythioformaldehyde or other polymeric by-products of the treatment of hydrocarbon products (a-DZT) to remove them from surfaces. These are solids that build up on surfaces of processing plant and are resistant to most chemical treatment. The treatment requires treating the surface with an effective amount of a mercaptan or an amine. Surfactants to keep the dissolved a-DTZ or other components from redepositing elsewhere are also described, as is the use of hydrogen sulfide to add in removal by mercaptans.

    System and method for the production of synthetic fuels without fresh water
    3.
    发明授权
    System and method for the production of synthetic fuels without fresh water 有权

    公开(公告)号：US12129435B2

    公开(公告)日：2024-10-29

    申请号：US17771918

    申请日：2021-12-06

    申请人： EDL ANLAGENBAU GESELLSCHAFT MBH

    发明人： Michael Haid ,  Rolf Gambert

    IPC分类号： C10G2/00

    CPC分类号： C10G2/50 ,  C10G2300/1022 ,  C10G2400/08

    摘要： The present invention relates to a system for producing synthetic fuels, in particular jet fuel (kerosene), gasoline and/or diesel, comprising:

    a) an apparatus for separately extracting carbon dioxide and water from ambient air,
    b) a synthesis gas production apparatus for producing a raw synthesis gas comprising carbon monoxide, hydrogen, carbon dioxide and water, the synthesis gas production apparatus having a supply line for carbon dioxide leading from the apparatus for separately extracting carbon dioxide and water from ambient air, a supply line for air and a supply line for water,
    c) a separating apparatus for separating carbon dioxide and water from the raw synthesis gas produced in the synthesis gas production apparatus,
    d) a Fischer-Tropsch apparatus for producing hydrocarbons by means of a Fischer-Tropsch process from the synthesis gas from which carbon dioxide and water were separated in the separating apparatus,
    e) a refining apparatus for refining the hydrocarbons produced in the Fischer-Tropsch apparatus into synthetic fuels,
    f) a desalination apparatus for desalinating water, the desalination apparatus having a water supply line from the apparatus for separately extracting carbon dioxide and water from ambient air and a water discharge line to the Fischer-Tropsch apparatus, and
    g) a water purification apparatus, which comprises a water supply line leading from the Fischer-Tropsch apparatus for purifying water produced therein, the system further comprising a pre-reformer for converting hydrocarbons other than methane into methane, carbon oxides, water and hydrogen and i) a water vapor supply line leading from the water purification apparatus to the pre-reformer, ii) a process gas supply line leading from the refining apparatus to the pre-reformer and/or a return gas line leading from the Fischer-Tropsch apparatus to the pre-reformer and iii) a circulation line leading from the pre-reformer to the supply line for water connected to the synthesis gas production apparatus.

    PROCESS FOR PRODUCING KEROSENE AND DIESEL FROM RENEWABLE SOURCES
    10.
    发明公开
    PROCESS FOR PRODUCING KEROSENE AND DIESEL FROM RENEWABLE SOURCES 审中-公开

    公开(公告)号：US20240352344A1

    公开(公告)日：2024-10-24

    申请号：US18685286

    申请日：2022-09-14

    申请人： SHELL USA, INC.

    发明人： Pui Yiu Ben CHAN ,  Venkatesh THYAGARAJAN ,  Edmundo Steven VAN DOESBURG ,  Rubin Keith WHITT ,  Artur YARULIN

    IPC分类号： C10G49/22

    CPC分类号： C10G49/22 ,  C10G2300/1003 ,  C10G2300/1011 ,  C10G2300/4081

    摘要： A process for improving yield of kerosene from a renewable feedstock involves directing a hydroprocessed liquid stream to a lead stripper to separate a lead stripper bottoms stream and a lead stripper overhead stream comprising naphtha, lower and higher boiling point range hydrocarbons and water. Bulk water is removed from the lead stripper overhead stream resulting in an unstabilized hydrocarbon stream, which is passed to a stabilization column to separate a stabilized naphtha-containing stream from the lower boiling point range hydrocarbons. The stabilized naphtha-containing stream is passed to a rectification column to separate a rectification bottoms stream and a naphtha product stream. Kerosene and diesel boiling range product streams are separated from the lead stripper bottoms stream in a vacuum fractionator.