C01B2203/107

Functional nanoscale metal oxides for stable metal single atom and cluster catalysts

A nanocomposite catalyst includes a support, a multiplicity of nanoscale metal oxide clusters coupled to the support, and one or more metal atoms coupled to each of the nanoscale metal oxide clusters. Fabricating a nanocomposite catalyst includes forming nanoscale metal oxide clusters including a first metal on a support, and depositing one or more metal atoms including a second metal on the nanoscale metal oxide clusters. The nanocomposite catalyst is suitable for catalyzing reactions such as CO oxidation, water-gas-shift, reforming of CO.sub.2 and methanol, and oxidation of natural gas.

SYSTEM AND METHOD FOR LOW-COST METHANE UPGRADING TO ADDED-VALUABLE PRODUCTS
20220017434 · 2022-01-20 ·

The present disclosure is generally directed to a new and innovative system, process and method that utilize a new “non-oxygen type of oxidizers” process for methane (CH.sub.4) upgrading to value-added products such as olefins and aromatics (i.e., benzene, toluene and xylene (BTX)) etc. and further removing toxic impurities such as sulphur-containing compounds (i.e. H.sub.2S) by using the sulphur as a source of radical.

DRY REFORMING OF HYDROCARBONS

A dry reforming process for producing a synthesis gas from a hydrocarbon fuel is described. A feed stream is preheated. The feed stream includes the hydrocarbon fuel and carbon dioxide. The feed stream is flowed to a reactor. The reactor includes a catalyst. Flowing the feed stream to the reactor brings the feed stream into contact with the catalyst in the absence of oxygen and causes a dry reforming reaction within the reactor for a period of time sufficient to reform the hydrocarbon fuel to produce the synthesis gas. The catalyst includes nickel (Ni), lanthanum oxide (La.sub.2O.sub.3), cerium oxide (Ce.sub.2O.sub.3), and platinum (Pt).

Catalyst structure and method for producing the catalyst structure

A catalyst structure includes a carrier having a porous structure composed of a zeolite type compound and at least one catalytic material existing in the carrier. The carrier has channels communicating with each other, and the catalytic material is a metal fine particle and exists at least in the channel of the carrier.

SOLID ACID ELECTROCHEMICAL CELLS FOR THE PRODUCTION OF HYDROGEN

Electrochemical cells for the production of hydrogen from liquid fuels and methods of operating the cells to produce hydrogen and electricity are provided. The electrochemical cells are solid state cells that incorporate a thermochemical conversion catalyst and a hydrogen oxidation catalyst into the anode and utilize solid acid electrolytes. This cell design integrates thermally driven chemical conversion of a starting fuel with electrochemical removal of hydrogen from the conversion reaction zone.

HYDROGEN STATION AND HYDROGEN PRODUCING METHOD

[Task] To avoid use of direct fire and suppress CO.sub.2 emission when heating a heat medium used to input heat to dehydrogenation reaction of hydrogenated aromatics.

[Solution] A hydrogen station 1 includes: a dehydrogenation reactor 23 that produces hydrogen by dehydrogenation reaction of a hydrogenated aromatic in presence of a dehydrogenation catalyst; a heat supply device 26 that supplies heat to the dehydrogenation reactor via a heat medium heated by using fuel; and a PSA device 33 that purifies a reaction product gas in the dehydrogenation reactor by using an adsorbent according to a pressure swing adsorption method, wherein the PSA device is supplied with a purge gas containing hydrogen used in regeneration of the adsorbent, the heat supply device includes a storage tank 27 storing the heat medium and a catalytic combustion tube 28 disposed in the storage tank to catalytically combust the fuel in presence of a combustion catalyst, and the catalytic combustion tube is supplied with the purge gas discharged from the PSA device as the fuel together with air.

PRODUCTION OF LIQUID HYDROCARBONS FROM CARBON DIOXIDE, IN COMBINATION WITH HYDROGEN OR A HYDROGEN SOURCE
20230382820 · 2023-11-30 ·

Pathways are disclosed for the production of liquid hydrocarbon products comprising gasoline and/or diesel boiling-range hydrocarbons, and in certain cases renewable products having non-petroleum derived carbon. In representative processes, a gaseous feed mixture comprising CO.sub.2 in combination H.sub.2 and/or CH.sub.4 (or other hydrocarbon source of H.sub.2) is converted by reforming and/or reverse water-gas shift (RWGS) reactions, optionally further in combination with Fischer-Tropsch (FT) synthesis and/or cracking. A preferred gaseous feed mixture comprises biogas or otherwise a mixture of CO.sub.2 and H.sub.2 that is not readily upgraded using conventional processes. Catalysts described herein have a high activity for catalyzing the reforming (including dry reforming) of CH.sub.4 and other light hydrocarbons (e.g., those having been produced via FT synthesis and recycled as light ends back to the process) as well as simultaneously catalyzing the RWGS reaction. These attributes allow for flexibility in terms of compositions that may be converted efficiently. Economics of small-scale operations may be improved, if necessary, using an electrically heated reforming reactor in the first or initial reforming stage or RWGS stage.

MOLECULAR SIEVE BORON SSZ-121, ITS SYNTHESIS AND USE
20230381759 · 2023-11-30 · ·

A novel synthetic crystalline molecular sieve material, designated boron SSZ-121 is provided. The boron SSZ-121 can be synthesized using 1,3-bis(1-adamantyl)imidazolium cations as a structure directing agent. The boron SSZ-121 may be used in organic compound conversion reactions and/or sorptive processes.

MULTI-SANDWICH COMPOSITE CATALYST AND PREPARATION METHOD AND APPLICATION THEREOF

The present disclosure relates to a multi-sandwich composite catalyst and a preparation method and application thereof. The present disclosure provides a preparation method of a multi-sandwich composite catalyst, comprises the following steps: sequentially depositing a first layer oxide, a first active metal, an oxide interlayer, a second active metal and a surface oxide on a template, and sequentially performing calcination and reduction, thereby obtaining a multi-sandwich composite catalyst; wherein the first active metal and the second active metal are different kinds of active metals. In the present disclosure, a multi-sandwich structure is formed by depositing the oxides and active metals alternately, so that the position and spacing distance of the active centers can be precisely controlled. The multi-sandwich composite catalyst prepared by the method provided described herein has a higher conversion than that of a catalyst without an interlayer when used for the catalytic reaction.

CATALYSTS, PROCESS FOR OBTAINING AND STEAM PRE-REFORMING PROCESS OF HYDROCARBONS
20220250906 · 2022-08-11 ·

The present invention refers to a pre-reforming catalyst comprised of nickel oxide and having platinum content between 0.01 to 0.5%, characterized in that the catalyst is resistant to deactivation by passage of steam in the absence of a reducing agent and to a process for producing hydrogen or hydrogen-rich gases.