C01B2203/1623

PROCESS AND SYSTEM FOR PRODUCING A GAS COMPRISING NITROGEN (N2) AND HYDROGEN (H2) BY COMBUSTION OF HYDROGEN IN THE PRESENCE OF AIR

The technology relates to a process and system for producing a gas comprising nitrogen (N.sub.2) and hydrogen (H.sub.2) in a reaction chamber of length L of a reactor. The process comprises injecting air and injecting hydrogen into the reactor and the combustion of a portion of the injected hydrogen with the oxygen from the air in the reaction chamber, in the presence of an overstoichiometric molar excess of hydrogen relative to the oxygen from the air. The combustion is supported by a flame produced by an air flow having a velocity v.sub.1 resulting from the injection of air, surrounded by a hydrogen flow having a velocity v.sub.2 resulting from the injection of hydrogen, with the velocity v.sub.2 being greater than v.sub.1.

HEAT EXCHANGE REACTOR WITH REDUCED METAL DUSTING
20240261749 · 2024-08-08 · ·

The present technology relates to a heat exchange reactor (HER) system comprising a first gas feed and a heat exchange reactor, HER. The HER has two reaction zones; a first reaction zone (I) arranged to carry out an overall exothermic reaction of the first gas feed, and a second reaction zone (II) arranged to carry out an overall endothermic reaction of gas from said first reaction zone (I).

Combustion control apparatus of LPG reforming system and method for controlling the same
12104789 · 2024-10-01 · ·

A combustion control apparatus of an Liquefied Petroleum Gas (LPG) reforming system and a method for controlling the same may include a burner provided to supply heat to a reformer, a flame temperature analyzer configured to analyze a flame temperature of the burner, an air flow rate calculator configured to determine an initial value of a flow rate of air to be supplied to the burner depending on a flow rate of fuel gas supplied to the burner, and an air flow rate controller electrically connected to the air flow rate calculator and the flame temperature analyzer and configured to select the flow rate of the air at which the flame temperature transmitted by the flame temperature analyzer reaches a maximum while changing the flow rate of the air from the initial value and to control supply of the selected flow rate of the air to the burner.

Process for recovering heat at high temperatures in plasma reforming systems

A heat recovery system for plasma reformers is comprised of a cascade of regenerators and recuperators that are arranged to transfer in stages the heat at high temperatures for storage, transport, and recirculation. Recirculation of heat increases the efficiency of plasma reformers and heat exchanging reduces temperature of the product for downstream applications.

SYSTEMS AND METHODS FOR ENGINE-MOUNTED CATALYTIC PRODUCTION OF HYDROGEN FROM AMMONIA FOR USE AS A COMBUSTION FUEL
20240294377 · 2024-09-05 ·

The present invention relates, in general, to systems and methods for generating hydrogen from ammonia on-board vehicles, where the produced hydrogen is used as fuel source for an internal combustion engine. The present invention utilizes an electric catalyst unit operating in series with a heat exchange catalyst unit. The electric catalyst unit is used to initiate an ammonia cracking process on-board during a cold start or low load operating condition of the internal combustion engine, where the ammonia cracking process occurs in the heat exchange catalyst unit once exhaust gas from the internal combustion engine has been heated to a threshold temperature suitable to perform the ammonia cracking process.

System and method for producing hydrogen

To allow hydrogen to be supplied to a dehydrogenation reaction unit for dehydrogenating an organic hydride by using a highly simple structure so that the activity of the dehydrogenation catalyst of the dehydrogenation reaction unit is prevented from being rapidly reduced. The hydrogen production system (1) comprises a first dehydrogenation reaction unit (3) for producing hydrogen by a dehydrogenation reaction of an organic hydride in presence of a first catalyst, and a second dehydrogenation reaction unit (4) for receiving a product of the first dehydrogenation reaction unit, and producing hydrogen by a dehydrogenation reaction of the organic hydride remaining in the product in presence of a second catalyst, wherein an amount of the first catalyst used in the first dehydrogenation reaction unit is equal to or less than an amount of the second catalyst used in the second dehydrogenation reaction unit, and an amount of hydrogen produced in the first dehydrogenation reaction unit is less than an amount of hydrogen produced in the second dehydrogenation reaction unit.

System and method for low-cost methane upgrading to added-valuable products

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.

METHOD OF CATALYST REDUCTION IN A HYDROGEN PLANT
20180170751 · 2018-06-21 ·

The present invention relates to a method of reducing a catalyst utilized in a hydrogen plant. More specifically, the invention relates the reduction of a catalyst employed in the steam methane reformer.

CONDITIONS FOR AQUEOUS PHASE REFORMING
20240391767 · 2024-11-28 ·

The present disclosure provides a method for producing hydrogen in an aqueous phase reforming process using a water-soluble oxygenated hydrocarbon under improved conditions. The present method can be used to produce hydrogen from glycerol at reduced pressure and significantly increased hydrogen yield.

Synthesis gas production by reverse water gas shift reaction using carbon dioxide and pyrolysis-derived hydrogen
20240383749 · 2024-11-21 ·

Chemical systems and methods for synthesis gas (syngas) production relying on pyrolysis gases containing a pyrolysis carbon product and pyrolysis-derived hydrogen from a pyrolysis reactor that pyrolyzes a hydrocarbon feedstock. A high-temperature carbon separation mechanism separates the pyrolysis carbon product from the pyrolysis gases while maintaining their temperature above 800? C. A carbon dioxide source provides a gas stream primarily made up of a carbon dioxide gas. The hot pyrolysis gases containing pyrolysis-derived hydrogen and the carbon dioxide gas are sent to a reverse water gas shift reactor to react the pyrolysis gases with carbon dioxide to form the syngas. The syngas thus formed in the reverse water gas shift reactor can be used in many types of downstream systems and applications, including in reducing a metal oxide such as iron ore or other metal oxide to obtain a metal oxide reduction product. Recycling and heat exchange are provided for achieving further system efficiencies.