Method for the dissolution of amorphous dithiazines

    公开(公告)号:US12129437B2

    公开(公告)日:2024-10-29

    申请号:US17494673

    申请日:2021-10-05

    IPC分类号: C10G29/28 C11D3/34

    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

    公开(公告)号:US12129435B2

    公开(公告)日:2024-10-29

    申请号:US17771918

    申请日:2021-12-06

    IPC分类号: C10G2/00

    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.

    RENEWABLE DIESEL INTERFACE RECOMBINATION
    8.
    发明公开

    公开(公告)号:US20240353072A1

    公开(公告)日:2024-10-24

    申请号:US18760138

    申请日:2024-07-01

    IPC分类号: F17D3/03 C10L1/08

    摘要: Methods and systems for, among other embodiments, transporting renewable diesel (RD) through a pipeline, or a portion thereof, are provided. In certain embodiments, the method may include transporting the renewable diesel from a first pipeline terminal to a second pipeline terminal, the renewable diesel wrapped head and tail with a compatible diesel fuel. The method may also include restricting the transport of the diesel fuel in the pipeline to diesel fuel compositions having a first composition or first specification, the first composition or first specification characterized by a selected amount of the renewable diesel, or a component thereof, the selected amount being less than the selected amount allowed in a second target specification for the diesel fuel. The method may also include combining, at the second pipeline terminal, at least a portion of the mixed interface fraction stream with at least a portion of the diesel fuel fraction stream so as to produce a diesel fuel stream meeting the second target specification.

    CARBON DIOXIDE-CONTAINING GAS PROCESSING SYSTEM AND CARBON DIOXIDE-CONTAINING GAS PROCESSING METHOD

    公开(公告)号:US20240352368A1

    公开(公告)日:2024-10-24

    申请号:US18210146

    申请日:2023-06-15

    发明人: Shigeru OCHIAI

    IPC分类号: C10L3/10

    CPC分类号: C10L3/104 C10L2290/54

    摘要: There is provided with a system comprising a carbon dioxide processing unit configured to generate a metal carbonate by reacting a carbon dioxide-containing gas with an aqueous dispersion containing a metal hydroxide and acetonitrile, a separation unit configured to separate a dispersion obtained after the carbon dioxide-containing gas is processed to generate a precipitate and a residual liquid, a residual liquid supply unit configured to supply the residual liquid to the carbon dioxide processing unit, a heating unit configured to generate carbon dioxide by thermally decomposing the precipitate, and a graphene generating unit configured to generate graphene by heating the generated carbon dioxide, wherein a content of acetonitrile in an aqueous dispersion supplied together with the residual liquid to the carbon dioxide processing unit is decided based on an amount of acetonitrile in the residual liquid.