Distillate production from oxygenates in moving bed reactors

    公开(公告)号:US11383202B2

    公开(公告)日:2022-07-12

    申请号:US16910018

    申请日:2020-06-23

    Abstract: Systems and methods are provided for conversion of oxygenate feeds to distillate boiling range products using multiple moving bed reactor stages. The systems and methods allow for multiple stages to be used while avoiding the need for distillation or other boiling point based separation as the mixture of feed and effluent is passed between stages. Instead, a stripping gas is used to disengage the feed and effluent from the catalyst solids. In combination with an improved moving bed reactor design, this can allow substantially all of the feed and effluent from a first moving bed reactor stage to be passed into a second moving bed reactor stage, even when the feed and effluent include both vapor and liquid phase portions.

    Plunger lift systems and related methods

    公开(公告)号:US12252983B2

    公开(公告)日:2025-03-18

    申请号:US18594702

    申请日:2024-03-04

    Abstract: A plunger lift system, as well as a method for monitoring plunger parameters within a wellbore using such a plunger lift system, are provided. The plunger lift system includes a lubricator attached to a wellhead at the surface and a plunger dimensioned to travel through the production tubing upon being released from the lubricator. The plunger lift system also includes magnetic sensor systems installed along the production tubing, where each magnetic sensor system includes a magnetic sensor for detecting the passage of the plunger as it travels through the production tubing, as well a communication device for transmitting communication signals between the magnetic sensor systems and a computing system located at the surface, where the computing system includes a processor and a non-transitory, computer-readable storage medium including computer-executable instructions that direct the processor to dynamically determine the plunger position and/or velocity based on the received communication signals.

    ALKALI TRAP FOR MOLTEN CARBONATE FUEL CELL ANODE

    公开(公告)号:US20250062380A1

    公开(公告)日:2025-02-20

    申请号:US18804530

    申请日:2024-08-14

    Abstract: In various aspects, molten carbonate fuel cell configurations are provided that include a reforming catalyst and alkali traps integrated with one or more structures within the anode gas-collection volume. The purpose of the reforming catalyst is to reform methane (or some other reformable fuel) into hydrogen. In operation, alkali metals may migrate from the fuel cell electrolyte into the anode. Unless trapped, the alkali metals may deactivate the reforming catalyst. The alkali trap prolongs the operating life of reforming catalyst within the anode volume by capturing some portion of the alkali metal in the anode gas-collection volume. This reduces an amount of alkali metal that interacts with the reforming catalyst in the anode gas-collection volume. The prolonged life of the reforming catalyst prevents a decrease in catalyst activity.

    INTENSIFIED REACTOR AND PROCESS HEAT INTEGRATION FOR CONVERSION OF ALCOHOL TO FUELS

    公开(公告)号:US20250059448A1

    公开(公告)日:2025-02-20

    申请号:US18805865

    申请日:2024-08-15

    Abstract: A method including: introducing a feed comprising an alcohol and an activator into a reactor comprising a solid acid catalyst; contacting the alcohol and the activator in the presence of the solid acid catalyst under conditions effective to convert at least a portion of the alcohol and the activator to produce a product stream comprising C8-C16 olefins and water; thermally contacting at least a portion of the C8-C16 olefins and/or water with a working fluid to heat the working fluid to form a heated working fluid; and introducing at least a portion of the C8-C16 olefins and water from the product stream into a distillation column and forming a bottoms stream comprising a majority of the C8-C16 olefins from the product stream, wherein a reboiler thermally coupled to the distillation column is at least partially heated by the heated working fluid.

    ISOPARAFFINIC AND ISO-OLEFINIC DISTILLATE COMPOSITIONS

    公开(公告)号:US20250026998A1

    公开(公告)日:2025-01-23

    申请号:US18905769

    申请日:2024-10-03

    Abstract: Compositions are provided that include at least a portion of an isoparaffinic blend component, an iso-olefinic blend component, or a combination thereof, along with a method for making such a blend component. The highly isoparaffinic and/or iso-olefinic nature of the blend component can allow a blend component to be used in combination with both conventional/mineral fractions as well as non-traditional feeds to form fuel fractions and/or fuel blending component fractions. Examples of fuels that can be formed by making a blend that includes an isoparaffinic and/or iso-olefinic blend component include diesel fuels, marine gas oils, and various types of marine fuel oils, such as very low sulfur fuel oils.

    IN PHA PRODUCTION
    120.
    发明申请

    公开(公告)号:US20250019729A1

    公开(公告)日:2025-01-16

    申请号:US18658087

    申请日:2024-05-08

    Abstract: An embodiment of the present disclosure provides an isolated nucleic acid molecule comprising a sequence encoding a protein having a PhaP1 domain and a HlyA domain, wherein the HlyA domain differs from the wild-type HlyA domain of E. coli (SEQ ID NO.: 1) SEQ ID NO. 1: LAYGSQGDLNPLINEISKIISAAGSFDVKEERTAAS LLQLSGNASDFSYGRNSITLTTSA in at least the wild-type amino acid residue S (serine) at position 25 (underlined above) is replaced with the amino acid residue N (asparagine).

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