Abstract: The present disclosure provides systems and methods for processing and storing captured CO2 from engine applications through a split-system architecture with vacuum and high-pressure sections connected by an intermediate accumulator volume. The system processes CO2 from initial capture conditions of up to 750°C and sub-ambient pressures through multiple compression and cooling stages to achieve stable storage conditions. Novel heat management approaches utilize combinations of air, water-glycol, and refrigerant cooling loops. The system accommodates varying input conditions while maintaining stable storage conditions, making it particularly suitable for both stationary and mobile engine applications. Active temperature control maintains optimal storage conditions in either supercritical or two-phase states. The system provides an efficient and practical solution for handling captured CO2 across a wide range of engine applications.

Abstract: A method of producing hydrogen from methane and renewable hydrocarbons is disclosed. The method includes producing hydrogen with a lower carbon life cycle emission score by utilizing (1) a blend of renewable feedstocks and natural gas and (2) a carbon dioxide recovery and sequestration process.

Abstract: The present disclosure provides methods for manufacturing monolithic membrane structures using additive manufacturing of lithium zirconate-based materials. The methods enable creation of complex internal geometries optimized for carbon dioxide (CO2) separation and capture from gas mixtures. Further, the disclosure provides specific material formulations combining lithium zirconate with various additives and process parameters for successful additive manufacturing. The resulting monolithic membrane structures feature alternating feed and permeant channels arranged orthogonally, with selective membrane walls enabling efficient CO2 capture through chemisorption. The disclosed technology enables practical implementation of solid-state CO2 capture technology for industrial and vehicle emissions.

Abstract: The present disclosure provides methods and compositions for manufacturing solid-state zirconate membranes for selective carbon dioxide separation from high-temperature gas effluents. A first method involves applying a metal carbonate suspension to a porous zirconia substrate, followed by calcination. A second method involves saturating a porous zirconia substrate with metal hydroxides, converting the hydroxides to carbonates through carbon dioxide exposure, and subsequent calcination. Both methods produce mechanically robust membranes suitable for industrial and vehicle carbon dioxide separation applications. The methods utilize combinations of lithium and other metals, such as potassium, as the metal components, with specific molar ratios optimized for membrane performance. The resulting membranes exhibit improved mechanical stability while maintaining high carbon dioxide selectivity.

Abstract: A method of producing hydrogen from methane and renewable hydrocarbons is disclosed. The method includes producing hydrogen with a lower carbon life cycle emission score by utilizing (1) a blend of renewable feedstocks and natural gas and (2) a carbon dioxide recovery and sequestration process.

Abstract: A method, process, and system are disclosed for removing silicon-containing compounds from refinery hydrocarbon streams using alkaline treatment. The refinery stream, which may originate from units such as a crude stream, delayed coker, or other process unit, is contacted with an alkaline agent, such as a solid or an aqueous solution of sodium hydroxide, potassium hydroxide, or an amine. This treatment extracts at least a portion of the silicon-containing compounds, including organic silicon species, from the hydrocarbon stream. The process may be applied to whole streams or specific fractions such as LPG, naphtha, kerosene, diesel, or coker gas oil. Following alkaline treatment, the hydrocarbon stream may be directed to a hydrotreating unit, where reduced silicon content reduces catalyst poisoning.

Abstract: Provided are analytic methods for determining stability of a chemical sample, the methods comprising: heating the chemical sample within a calorimetric device, measuring a pressure within the calorimetric device while applying heat to the chemical sample, measuring a temperature of the chemical sample while applying heat to the chemical sample, identifying a pressure inflection point in the pressure data, identifying the temperature at the identified pressure inflection point, and determining stability of the chemical sample at the pressure inflection point by comparing the identified temperature and a predetermined threshold temperature.

Abstract: The present disclosure relates to methods for the production of transportation fuels from renewable plant- and animal-based resources. The methods disclosed herein present an environmentally-friendly process for using or recycling plant- and animal-based fats and oils. The renewable feed stocks can be used to produce a variety of hydrocarbon fuels, including renewable gasoline. The disclosure also relates to fuel products and fuel blend stocks produced from renewable hydrocarbon starting materials.

Abstract: The present disclosure relates to methods for the production of transportation fuels from renewable paraffinic feed stocks. The methods disclosed herein present an environmentally-friendly process for using renewable paraffinic feed stocks from various sources. The renewable paraffinic feed stocks can be used to produce a variety of hydrocarbon fuels, including renewable gasoline. The disclosure also relates to fuel products and fuel blend stocks produced from renewable paraffinic feed stocks.

Abstract: The present disclosure relates to methods for the production of a renewable crude oil from plant oils and animal fats. The renewable crude is a drop-in renewable crude that can be processed in a petroleum refinery with minimal or no modifications.

Abstract: The present disclosure relates to an improved sieve tray assembly for a liquid-liquid treating column. The tray is a modular design with inlet and outlet downcomer assemblies that are mounted flush to or raised above the sieve deck upper surface. The raised downcomer assemblies provide increased surface area for light liquid upflow perforations and enhanced liquid-liquid contacting capacity and efficiency.

Abstract: A system and method provide for secure activation of physical credit cards from a display provided at a store. Temporary spending cards (TSP) for use as credit cards are provided in tamper evident packages found in the display. The TSPs are initially inactivated. Upon removal of the TSP from the package, a user may scan the QR code on the TSP to direct the user's mobile device to a secure location that prompts the user for credit related information. A credit card system evaluates the information using business rules to determine whether or not to approve the user for activation. If approved, then the user is prompted to enter a serial number found on the card to allow immediate spending. The serial number is different from an account number for the card. The TSP expires within a predetermined relatively short time period.